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  • 1. ZJ WIRING DIAGRAMS 8W - 1 WIRING DIAGRAMS CONTENTS page page8W-01 GENERAL INFORMATION - WIRING 8W-47 AUDIO SYSTEM . . . . . . . . . . . . . . 8W-47-1 DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . 8W-01-1 8W-48 HEATED REAR WINDOW . . . . . . . 8W-48-18W-10 FUSE BLOCK . . . . . . . . . . . . . . . . . 8W-10-1 8W-49 OVERHEAD CONSOLE . . . . . . . . . . 8W-49-18W-11 POWER DISTRIBUTION . . . . . . . . 8W-11-1 8W-50 FRONT LIGHTING . . . . . . . . . . . . . 8W-50-18W-15 GROUND DISTRIBUTION . . . . . . . 8W-15-1 8W-51 REAR LIGHTING . . . . . . . . . . . . . . 8W-51-18W-20 CHARGING SYSTEM . . . . . . . . . . . 8W-20-1 8W-52 TURN SIGNALS . . . . . . . . . . . . . . . 8W-52-18W-21 STARTING SYSTEM . . . . . . . . . . . 8W-21-1 8W-53 WIPERS . . . . . . . . . . . . . . . . . . . . . 8W-53-18W-30 FUEL/IGNITION . . . . . . . . . . . . . . . 8W-30-1 8W-54 TRAILER TOW . . . . . . . . . . . . . . . . 8W-54-18W-31 TRANSMISSION COLTROLS . . . . . 8W-31-1 8W-60 POWER WINDOWS . . . . . . . . . . . . 8W-60-18W-32 ANTI-LOCK BRAKES . . . . . . . . . . . 8W-32-1 8W-61 POWER DOOR LOCKS . . . . . . . . . 8W-61-18W-33 VEHICLE SPEED CONTROL . . . . . 8W-33-1 8W-62 POWER MIRRORS . . . . . . . . . . . . 8W-62-18W-39 VEHICLE THEFT ALARM . . . . . . . . 8W-39-1 8W-63 POWER SEAT . . . . . . . . . . . . . . . . 8W-63-18W-40 GAUGES . . . . . . . . . . . . . . . . . . . . 8W-40-18W-41 HORN/CIGAR LIGHTER . . . . . . . . . 8W-41-1 8W-64 POWER SUNROOF . . . . . . . . . . . . 8W-64-18W-42 AIR CONDITIONING . . . . . . . . . . . 8W-42-1 8W-70 SPLICE INFORMATION . . . . . . . . . 8W-70-18W-43 AIRBAG SYSTEM . . . . . . . . . . . . . 8W-43-1 8W-80 CONNECTOR PIN OUTS . . . . . . . . 8W-80-18W-44 INTERIOR LIGHTING . . . . . . . . . . . 8W-44-1 8W-90 CONNECTOR LOCATIONS . . . . . . . 8W-90-18W-46 MESSAGE CENTER . . . . . . . . . . . . 8W-46-1 8W-95 SPLICE LOCATIONS . . . . . . . . . . . 8W-95-1HOW TO USE THIS GROUP SECTION IDENTIFICATION The purpose of this group is to show the electrical Sections in Group 8W are organized by sub-sys-circuits in a clear, simple fashion and to make tems. The sections contain circuit operation descrip-troubleshooting easier. Components that work to- tions, helpful information, and system diagrams. Thegether are shown together. All electrical components intention is to organize information by system, consis-used in a specific system are shown on one diagram. tently from year to year.The feed for a system is shown at the top of the page.All wires, connectors, splices, and components are CONNECTOR LOCATIONSshown in the flow of current to the bottom of the Section 8W-90 contains Connector Location illustra-page. Wiring which is not part of the circuit repre- tions. The illustrations contain the connector numbersented is referenced to another page/section, where and component identification. Connector Locationthe complete circuit is shown. In addition, all charts in Section 8W-90 reference the illustrationswitches, components, and modules are shown in the number for components and connectors.at rest position with the doors closed and the Section 8W-80 shows each connector and the cir-key removed from the ignition. cuits involved with that connector. The connectors are If a component is part of several different circuits, it identified using the number on the Diagram pages.is shown in the diagram for each. For example, theheadlamp switch is the main part of the exteriorlighting, but it also affects the interior lighting and SPLICE LOCATIONSthe chime warning system. Splice Location charts in Section 8W-70 show the It is important to realize that no attempt is entire splice, and provide references to other sectionsmade on the diagrams to represent components the splice serves.and wiring as they appear on the vehicle. For Section 8W-95 contains illustrations that show theexample, a short piece of wire is treated the general location of the splices in each harness. Thesame as a long one. In addition, switches and illustrations show the splice by number, and provide aother components are shown as simply as pos- written location.sible, with regard to function only. The wiring diagram show circuits for all wheel-bases. If there is a difference in systems or compo-nents between wheel-bases, an identifier is placednext to the component.
  • 2. ZJ 8W-01 GENERAL INFORMATION - WIRING DIAGRAMS 8W - 01 - 1 GENERAL INFORMATION - WIRING DIAGRAMS INDEX page pageCircuit Identification . . . . . . . . . . . . . . . . . . . . . .. . . 1 Take Outs . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . 2Connector and Terminal Replacement . . . . . . . .. . . 7 Terminal Replacement . . . . . . . . . . . . . . . . . . ... . . 8Connector Replacement . . . . . . . . . . . . . . . . . .. . . 6 Terminal/Connector Repair—Molex Connectors .. . . 6Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 2 Troubleshooting Tests . . . . . . . . . . . . . . . . . . ... . . 4Diode Replacement . . . . . . . . . . . . . . . . . . . . .. . . 8 Troubleshooting Tools . . . . . . . . . . . . . . . . . . ... . . 4Electrostatic Discharge (ESD) Sensitive Devices . . . 2 Troubleshooting Wiring Problems . . . . . . . . . ... . . 5Intermittent and Poor Connections . . . . . . . . . . .. . . 4 Wire Code Identification . . . . . . . . . . . . . . . . ... . . 1Notes, Cautions, and Warnings . . . . . . . . . . . . .. . . 1 Wiring Repair . . . . . . . . . . . . . . . . . . . . . . . . ... . . 6Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 2NOTES, CAUTIONS, and WARNINGS TO PREVENT SERIOUS BURNS, AVOID CONTACT Throughout this group additional important infor- WITH HOT PARTS SUCH AS THE RADIATOR, EX-mation is presented in three ways; Notes, Cautions, HAUST MANIFOLD(S), TAIL PIPE, CATALYTIC CON-and Warnings. VERTER, AND MUFFLER. NOTES are used to help describe how switches orcomponents operate to complete a particular circuit. DO NOT ALLOW FLAME OR SPARKS NEAR THEThey are also used to indicate different conditionsthat may appear on the vehicle. For example, an BATTERY. GASES ARE ALWAYS PRESENT IN ANDup-to and after condition. AROUND THE BATTERY. CAUTIONS are used to indicate information thatcould prevent making an error that may damage the ALWAYS REMOVE RINGS, WATCHES, LOOSEvehicle. HANGING JEWELRY, AND LOOSE CLOTHING. WARNINGS provide information to prevent per-sonal injury and vehicle damage. Below is a list ofgeneral warnings that should be followed any time a WIRE CODE IDENTIFICATIONvehicle is being serviced. Each wire shown in the diagrams contains a code (Fig. 1) which identifies the main circuit, part of theALWAYS WEAR SAFETY GLASSES FOR EYE PRO- main circuit, gauge of wire, and color. The color isTECTION. shown as a two letter code which can be identified by referring to the Wire Color Code Chart (Fig. 2).USE SAFETY STANDS ANYTIME A PROCEDURE RE-QUIRES BEING UNDER A VEHICLE.BE SURE THAT THE IGNITION SWITCH ALWAYS ISIN THE OFF POSITION, UNLESS THE PROCEDUREREQUIRES IT TO BE ON.SET THE PARKING BRAKE WHEN WORKING ONANY VEHICLE. AN AUTOMATIC TRANSMISSIONSHOULD BE IN PARK. A MANUAL TRANSMISSIONSHOULD BE IN NEUTRAL.OPERATE THE ENGINE ONLY IN A WELL-VENTI-LATED AREA. Fig. 1 Wire Color Code IdentificationKEEP AWAY FROM MOVING PARTS WHEN THE EN- CIRCUIT IDENTIFICATIONGINE IS RUNNING, ESPECIALLY THE FAN AND All circuits in the diagrams use an alpha/numericBELTS. code to identify the wire and its function (Fig. 3). To
  • 3. 8W - 01 - 2 8W-01 GENERAL INFORMATION - WIRING DIAGRAMS ZJ CONNECTORS Connectors shown in the diagrams are identified using the international standard arrows for male and female terminals (Fig. 4). A connector identifier is placed next to the arrows to indicate the connector number (Fig. 4). Fig. 4 Connector Identification For viewing connector pin outs, with two terminals or greater, refer to section 8W-80. This section iden- Fig. 2 Wire Color Code Chart tifies the connector by number and provides terminal numbering, circuit identification, wire colors, andidentify which circuit code applies to a system, refer functions.to the Circuit Identification Code Chart. This chart All connectors are viewed from the terminal endshows the main circuits only and does not show the unless otherwise specified. To find the connector loca-secondary codes that may apply to some models. tion in the vehicle refer to section 8W-90. This sec- tion uses the connector identification number from the wiring diagrams to provide a figure number ref- erence. TAKE OUTS The abbreviation T/O is used in the component lo- cation section to indicate a point in which the wiring harness branches out to a component. SYMBOLS Various symbols are used throughout the Wiring Diagrams. These symbols can be identified by refer- ring to the symbol identification chart (Fig. 5). ELECTROSTATIC DISCHARGE (ESD) SENSITIVE DEVICES All ESD sensitive components are solid state and a symbol (Fig. 6) is used to indicate this. When han- dling any component with this symbol, comply with the following procedures to reduce the possibility of electrostatic charge build up on the body and inad- vertent discharge into the component. If it is not known whether the part is ESD sensitive, assume that it is. (1) Always touch a known good ground before han- dling the part. This should be repeated while han- dling the part and more frequently after sliding Fig. 3 Circuit Identification across a seat, sitting down from a standing position, or walking a distance.
  • 4. ZJ 8W-01 GENERAL INFORMATION - WIRING DIAGRAMS 8W - 01 - 3 Fig. 5 Symbol Identification
  • 5. 8W - 01 - 4 8W-01 GENERAL INFORMATION - WIRING DIAGRAMS ZJ (2) Avoid touching electrical terminals of the part, • Probing Tools - These tools are used for probingunless instructed to do so by a written diagnostic terminals in connectors (Fig. 7). Select the properprocedure. size tool from Special Tool Package 6807, and insert (3) When using a voltmeter, be sure to connect the it into the terminal being tested. Use the other endground lead first. of the tool to insert the meter probe. (4) Do not remove the part from its protectivepacking until it is time to install the part. (5) Before removing the part from its package,ground the package to a known good ground on thevehicle. Fig. 7 Probing Tool INTERMITTENT AND POOR CONNECTIONS Most intermittent electrical problems are caused by faulty electrical connections or wiring. It is also pos- sible for a sticking component or relay to cause a Fig. 6 Electrostatic Discharge Symbol problem. Before condemning a component or wiringTROUBLESHOOTING TOOLS assembly check the following items. When diagnosing a problem in an electrical circuit • Connectors are fully seatedthere are several common tools necessary. These tools • Spread terminals, or terminal push outare listed and explained below. • Terminals in the wiring assembly are fully seated• Jumper Wire - This is a test wire used to connect into the connector/component and locked in positiontwo points of a circuit. It can be used to bypass an • Dirt or corrosion on the terminals. Any amount ofopen in a circuit. corrosion or dirt could cause an intermittent problem • Damaged connector/component casing exposing theWARNING: NEVER USE A JUMPER WIRE ACROSS item to dirt and moistureA LOAD, SUCH AS A MOTOR, CONNECTED BE- • Wire insulation that has rubbed through causing aTWEEN A BATTERY FEED AND GROUND. short to ground • Wiring broke inside of the insulation• Voltmeter - Used to check for voltage on a circuit.Always connect the black lead to a known good TROUBLESHOOTING TESTSground and the red lead to the positive side of the Before beginning any tests on a vehicle’s electricalcircuit. system, use the Wiring Diagrams and study the cir- cuit. Also refer to the Troubleshooting Wiring Prob-CAUTION: Most of the electrical components used lems section in this section.in today’s vehicle are solid state. When checkingvoltages in these circuits use a meter with a 10-me- TESTING FOR VOLTAGEgohm or greater impedance. (1) Connect the ground lead of a voltmeter to a known good ground (Fig. 8).• Ohmmeter - Used to check the resistance between (2) Connect the other lead of the voltmeter to thetwo points of a circuit. Low or no resistance in a cir- selected test point. The vehicle ignition may need tocuit means good continuity. be turned ON to check voltage. Refer to the appropri-CAUTION: - Most of the electrical components used ate test procedure.in today’s vehicle are Solid State. When checkingresistance in these circuits use a meter with a 10- TESTING FOR CONTINUITYmegohm or greater impedance. In addition, make (1) Remove the fuse for the circuit being checkedsure the power is disconnected from the circuit. or, disconnect the battery.Circuits that are powered up by the vehicle electri- (2) Connect one lead of the ohmmeter to one sidecal system can cause damage to the equipment and of the circuit being tested (Fig. 9).provide false readings.
  • 6. ZJ 8W-01 GENERAL INFORMATION - WIRING DIAGRAMS 8W - 01 - 5 (3) Starting at the fuse block, wiggle the wiring harness about six to eight inches apart and watch the voltmeter/test lamp. (4) If the voltmeter registers voltage or the test lamp glows, there is a short to ground in that gen- eral area of the wiring harness. TESTING FOR A SHORT TO GROUND ON FUSES POWERING SEVERAL LOADS (1) Refer to the wiring diagrams and disconnect or isolate all items on the fused circuit. (2) Replace the blown fuse. (3) Supply power to the fuse by turning ON the ig- nition switch or re-connecting the battery. (4) Start connecting the items in the fuse circuit one at a time. When the fuse blows the circuit with the short to ground has been isolated. TESTING FOR A VOLTAGE DROP (1) Connect the positive lead of the voltmeter to the side of the circuit closest to the battery (Fig. 10). (2) Connect the other lead of the voltmeter to the Fig. 8 Testing for Voltage other side of the switch or component. (3) Connect the other lead to the other end of the (3) Operate the item. (4) The voltmeter will show the difference in volt-circuit being tested. Low or no resistance means good age between the two points.continuity. Fig. 10 Testing for Voltage Drop Fig. 9 Testing for ContinuityTESTING FOR A SHORT TO GROUND TROUBLESHOOTING WIRING PROBLEMS (1) Remove the fuse and disconnect all items in- When troubleshooting wiring problems there are six steps which can aid in the procedure. The stepsvolved with the fuse. are listed and explained below. Always check for non- (2) Connect a test light or a voltmeter across the factory items added to the vehicle before doing anyterminals of the fuse. diagnosis. If the vehicle is equipped with these items, disconnect them to verify these add-on items are not the cause of the problem.
  • 7. 8W - 01 - 6 8W-01 GENERAL INFORMATION - WIRING DIAGRAMS ZJ (1) Verify the problem. (2) Verify any related symptoms. Do this by per-forming operational checks on components that arein the same circuit. Refer to the wiring diagrams. (3) Analyze the symptoms. Use the wiring dia-grams to determine what the circuit is doing, wherethe problem most likely is occurring and where thediagnosis will continue. (4) Isolate the problem area. (5) Repair the problem. (6) Verify proper operation. For this step, check forproper operation of all items on the repaired circuit.Refer to the wiring diagrams.WIRING REPAIR When replacing or repairing a wire, it is importantthat the correct gauge be used as shown in the wir-ing diagrams. The wires must also be held securelyin place to prevent damage to the insulation. (1) Disconnect battery negative cable. (2) Remove 1 inch of insulation from each end of Fig. 11 Wire Repairthe wire. (3) Place a piece of heat shrink tubing over oneside of the wire. Make sure the tubing will be longenough to cover and seal the entire repair area. (4) Spread the strands of the wire apart on eachpart of the exposed wires (Fig. 11 example 1). (5) Push the two ends of wire together until thestrands of wire are close to the insulation (Fig. 11 ex-ample 2). (6) Twist the wires together (Fig. 11 example 3). (7) Solder the connection together using rosin coretype solder only. Do not use acid core solder. (8) Center the heat shrink tubing over the joint,and heat using a heat gun. Heat the joint until thetubing is tightly sealed and sealant comes out of bothends of the tubing. (9) Secure the wire to the existing ones to prevent Fig. 12 Molex Connector Repairchafing or damage to the insulation. (10) Connect battery and test all affected systems.TERMINAL/CONNECTOR REPAIR—MOLEXCONNECTORS (1) Disconnect battery. (2) Disconnect the connector from its mating half/component. (3) Insert the terminal releasing special tool 6742into the terminal end of the connector (Fig. 12). (4) Using special tool 6742, release the locking fin-gers on the terminal (Fig. 13). (5) Pull on the wire to remove it from the connec-tor. (6) Repair or replace the connector or terminal asnecessary. Fig. 13 Using Special Tool 6742 (2) Disconnect the connector that is to be repairedCONNECTOR REPLACEMENT from its mating half/component. (1) Disconnect battery.
  • 8. ZJ 8W-01 GENERAL INFORMATION - WIRING DIAGRAMS 8W - 01 - 7 (3) Remove connector locking wedge, if required(Fig. 14). Fig. 16 Terminal Removal Using Special Tool (3) Cut off the existing wire connector directly be- Fig. 14 Connector Locking Wedge Tab (Typical) hind the insulator. Remove six inches of tape from (4) Position the connector locking finger away from the harness.the terminal using the proper pick from special tool (4) Stagger cut all wires on the harness side at 1/2kit 6680. Pull on the wire to remove the terminal inch intervals (Fig. 17).from the connector (Fig. 15, and Fig. 16). (5) Remove 1 inch of insulation from each wire on (5) Reset the terminal locking tang, if it has one. the harness side. (6) Insert the removed wire in the same cavity on (6) Stagger cut the matching wires on the repairthe repair connector. connector assembly in the opposite order as was done (7) Repeat steps four through six for each wire in on the harness side of the repair. Allow extra lengththe connector, being sure that all wires are inserted for soldered connections. Check that the overallinto the proper cavities. For additional connector pin- length is the same as the original (Fig. 17).out identification, refer to the wiring diagrams. (8) Insert the connector locking wedge into the re-paired connector, if required. (9) Connect connector to its mating half/compo-nent. (10) Connect battery and test all affected systems. Fig. 17 Stagger Cutting Wires (Typical) (7) Remove 1 inch of insulation from each wire. (8) Place a piece of heat shrink tubing over one side of the wire. Be sure the tubing will be long enough to cover and seal the entire repair area. (9) Spread the strands of the wire apart on each Fig. 15 Terminal Removal part of the exposed wires (Fig. 11 example 1).CONNECTOR AND TERMINAL REPLACEMENT (10) Push the two ends of wire together until the (1) Disconnect battery. strands of wire are close to the insulation (Fig. 11 ex- (2) Disconnect the connector (that is to be re- ample 2).paired) from its mating half/component.
  • 9. 8W - 01 - 8 8W-01 GENERAL INFORMATION - WIRING DIAGRAMS ZJ (11) Twist the wires together (Fig. 11 example 3). (15) Insert the repaired wire into the connector. (12) Solder the connection together using rosin (16) Install the connector locking wedge, if re-core type solder only. Do not use acid core solder. quired, and reconnect the connector to its mating (13) Center the heat shrink tubing over the joint half/component.and heat using a heat gun. Heat the joint until the (17) Re-tape the wire harness starting 1-1/2 inchestubing is tightly sealed and sealant comes out of both behind the connector and 2 inches past the repair.ends of the tubing. (18) Connect the battery, and test all affected sys- (14) Repeat steps 8 through 13 for each wire. tems. (15) Re-tape the wire harness starting 1-1/2 inchesbehind the connector and 2 inches past the repair. DIODE REPLACEMENT (16) Re-connect the repaired connector. (1) Disconnect the battery. (17) Connect the battery, and test all affected sys- (2) Locate the diode in the harness, and removetems. the protective covering. (3) Remove the diode from the harness, pay atten-TERMINAL REPLACEMENT tion to the current flow direction (Fig. 18). (1) Disconnect battery. (2) Disconnect the connector being repaired fromits mating half. (3) Remove connector locking wedge, if required(Fig. 14). (4) Position the connector locking finger away fromthe terminal using the proper pick from special toolkit 6680. Pull on the wire to remove the terminalfrom the connector (Figs. 15 and 16). (5) Cut the wire 6 inches from the back of the con-nector. (6) Remove 1 inch of insulation from the wire onthe harness side. (7) Select a wire from the terminal repair assemblythat best matches the color wire being repaired. (8) Cut the repair wire to the proper length and re-move 1 inch of insulation. (9) Place a piece of heat shrink tubing over one Fig. 18 Diode Identificationside of the wire. Make sure the tubing will be long (4) Remove the insulation from the wires in theenough to cover and seal the entire repair area. harness. Only remove enough insulation to solder in (10) Spread the strands of the wire apart on each the new diode.part of the exposed wires (Fig. 11 example 1). (5) Install the new diode in the harness, making (11) Push the two ends of wire together until the sure current flow is correct. If necessary, refer to thestrands of wire are close to the insulation (Fig. 11 ex- appropriate wiring diagram for current flow.ample 2). (6) Solder the connection together using rosin core (12) Twist the wires together (Fig. 11 example 3). (13) Solder the connection together using rosin type solder only. Do not use acid core solder.core type solder only. Do not use acid core solder. (7) Tape the diode to the harness using electrical (14) Center the heat shrink tubing over the joint tape. Make sure the diode is completely sealed fromand heat using a heat gun. Heat the joint until the the elements.tubing is tightly sealed and sealant comes out of both (8) Re-connect the battery, and test affected sys-ends of the tubing. tems.
  • 10. ZJ 8W-10 FUSE/FUSE BLOCK 8W - 10 - 1 FUSE BLOCKGENERAL INFORMATION DIAGRAM INDEX This section covers the Fuse Block and all relatedcircuits involved with it. For additional information Component Pageon system operation, refer to the appropriate section Circuit Breaker (Cavity 25) . . . . . . . . . . . . . . . . . . .8W-10-6of the wiring diagrams Circuit Breaker (Cavity 26) . . . . . . . . . . . . . . . .8W-10-9, 10 Circuit Breaker (Cavity 27) . . . . . . . . . . . . . . . . . . .8W-10-8 Circuit Breaker (Cavity 28) . . . . . . . . . . . . . . . . . . .8W-10-6 Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-2, 3 Fuse 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-4, 5 Fuse 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-4, 5 Fuse 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-4 Fuse 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-4 Fuse 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-7 Fuse 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-4 Fuse 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-4 Fuse 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6 Fuse 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8 Fuse 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8 Fuse 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8 Fuse 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-7 Fuse 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6 Fuse 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6 Fuse 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 10 Fuse 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 10 Fuse 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 10 Fuse 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 10 Fuse 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 10 Fuse 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 10 Fuse 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8 Fuse 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8 Fuse 23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-11 Fuse 24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-12 Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-10-12 Heated Rear Window Relay . . . . . . . . . . . . . . . . .8W-10-11 Ignition Switch . . . . . . . . . . . . . . . . . . . . . .8W-10-8, 9, 10 Lamp Outage Module . . . . . . . . . . . . . . . . . . . . .8W-10-13
  • 11. ZJ 8W-11 POWER DISTRIBUTION 8W - 11 - 1 POWER DISTRIBUTIONGENERAL INFORMATION DIAGRAM INDEX This section covers the power distribution centerand all circuits involved with it. For additional infor- Component Pagemation on system operation, refer to the appropriate ABS Pump Motor Relay . . . . . . . . . . . . . . . . . . . .8W-11-8section of the wiring diagrams. ABS System Relay . . . . . . . . . . . . . . . . . . . . . . . .8W-11-8 A/C Compressor Clutch Relay . . . . . . . . . . . . . . . .8W-11-9 Automatic Shut Down Relay . . . . . . . . . . . . . . . . .8W-11-5 Clutch Pedal Position Switch . . . . . . . . . . . . . . . . .8W-11-7 Engine Starter Motor Relay . . . . . . . . . . . . . . . . . .8W-11-7 Fog Lamp Relay . . . . . . . . . . . . . . . . . . . . . . . .8W-11-10 Fuel Pump Relay . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-5 Fuse 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-4 Fuse 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-5, 6 Fuse 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-5 Fuse 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-10 Fuse 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-9 Fuse 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-5, 6 Fuse 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-8 Fuse 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-4 Fuse 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-8 Fuse 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-10 Fuse 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-7 Fuse 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-4 Fuse 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-4 Fuse 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-4 Fuse 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-5, 6 Fuse 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-11-4 Ignition Switch . . . . . . . . . . . . . . . . . . . . . .8W-11-5, 6, 9 Power Distribution Center . . . . . . . . . . . . . . . . .8W-11-2, 3
  • 12. ZJ 8W-15 GROUND DISTRIBUTION 8W - 15 - 1 GROUND DISTRIBUTIONGENERAL INFORMATION DIAGRAM INDEX This section identifies the grounds, splices thatconnect to those grounds, and the components that Component Pageuse those grounds. For additional information on sys- G100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-2, 4tem operation, refer to the appropriate section of the G101 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-3wiring diagrams. G102 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-3 G103 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-3 G104 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-3 G105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-2, 4 G106 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-5 G300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-6 G301 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-15-7
  • 13. ZJ 8W-20 CHARGING SYSTEM 8W - 20 - 1 CHARGING SYSTEMCHARGING SYSTEM age. The generator supplies B+ voltage to the battery The charging system is an integral part of the bat- through the A11 and A0 circuits.tery and starting systems. Because all these systemswork in conjunction, diagnose and test them together. HELPFUL INFORMATION Circuit A11 connects to the generator output termi- • Check the 20 amp fuse located in cavity 2 of thenal and splices to fuse F8 and fuse F16 in the Power PDC.Distribution Center (PDC). Circuit A0 connects the • Circuit A5 also splices to provide power for thebattery to the PDC. fuel pump relay. Circuit Z0 provides ground for the generator. Cir- • The ASD relay supplies battery voltage for the fuelcuit Z0 attaches to the rear of the right side of the injectors, ignition coil, and the heated oxygen sensor.engine, and is spliced to the battery negative termi- The fuel pump relay powers the fuel pump module.nal. • Refer to the appropriate group of the Service Man- Power for the field terminal of the generator is sup- ual or the appropriate Diagnostic Test Proceduresplied by circuit A61. The A61 circuit is connected to Manual.the contact side of the Automatic Shut Down (ASD)relay. DIAGRAM INDEX Power for the contact side of the relay is suppliedby circuit A5. This circuit is protected by a 20 amp Component Pagefuse located in cavity 2 of the PDC. Automatic Shut Down Relay . . . . . . . . . . . . . . . . .8W-20-3 When the PCM grounds the ASD relay, contacts in- Fuse 2 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20-3side the relay close and connect circuit A5 from fuse Fuse 6 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20-32 in the PDC to circuit A61. Circuit A61 splices to the Fuse 8 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20-2generator field terminal. Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20-3 The PCM has an internal voltage regulator that Fuse 16 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20-2controls generator output. The PCM controls the gen- Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20-2erator field on circuit K20. Circuit K20 connects to Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20-3PCM cavity 20. Powertrain Control Module . . . . . . . . . . . . . . . . .8W-20-2, 3 When the engine operates and there is current inthe generator field, the generator produces a B+ volt-
  • 14. ZJ 8W-21 STARTING SYSTEM 8W - 21 - 1 STARTING SYSTEMSTARTING SYSTEM cuit A1 from fuse 12 in the PDC supplies battery voltage to the contact side of the starter motor relay.AUTOMATIC TRANSMISSIONS The ignition switch supplies battery voltage to the Circuit A0 from the battery is double crimped at coil side of the starter motor relay on circuit A41the positive battery post. One branch of circuit A0 when the key is moved to the START position. Cir-(battery positive cable) connects to the battery cuit T41 from the coil side of the relay connects to astarter motor. The other A0 branch supplies voltage Z1 splice. Circuit Z1 provides ground for the starterto the buss bar in the Power Distribution Center motor relay and terminates at the right fender side(PDC). shield. The PDC supplies battery voltage to the engine When the starter motor relay energizes and thestarter motor solenoid on circuit T40 when the coil contacts close, circuit T40 supplies battery voltage toside of the engine starter motor relay energizes. Cir- the starter motor solenoid. Circuit A0 from the bat-cuit A1 from fuse 12 in the PDC supplies battery tery supplies voltage to the starter motor when thevoltage to the contact side of the starter motor relay. solenoid energizes. The ignition switch supplies battery voltage to thecoil side of the starter motor relay on circuit A41 HELPFUL INFORMATIONwhen the key is moved to the START position and • The Park/Neutral switch closes when the trans-the Park/Neutral position switch is closed. Groundfor the coil side of the starter motor relay is supplied mission is in either the PARK or NEUTRAL posi-by the case grounded Park/Neutral position switch. tions.Circuit T41 connects the coil side of the relay to the • Circuit T41 also connects to cavity 30 of the PCM.Park/Neutral position switch, and is also spliced to This input tells the PCM the operator is starting thethe Powertrain Control Module (PCM). vehicle. When the starter motor relay energizes and the • Check the 40 amp fuse located in cavity F12 of thecontacts close, circuit T40 supplies battery voltage to PDC.the starter motor solenoid. Circuit A0 from the bat-tery supplies voltage to the starter motor when the DIAGRAM INDEXsolenoid energizes. Component PageMANUAL TRANSMISSIONS Clutch Pedal Position Switch . . . . . . . . . . . . . . . . .8W-21-2 Circuit A0 from the battery is double crimped at Engine Starter Motor . . . . . . . . . . . . . . . . . . . . . .8W-21-2the positive battery post. One branch of circuit A0 Engine Starter Motor Relay . . . . . . . . . . . . . . . . . .8W-21-2(battery positive cable) connects to the battery Fuse 11 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-21-2starter motor. The other A0 branch supplies voltage Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-21-2to the buss bar in the Power Distribution Center Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-21-2(PDC). Park/Neutral Position Switch . . . . . . . . . . . . . . . . .8W-21-2 The PDC supplies battery voltage to the engine Powertrain Control Module . . . . . . . . . . . . . . . . . .8W-21-2starter motor solenoid on circuit T40 when the coilside of the engine starter motor relay energizes. Cir-
  • 15. ZJ 8W-30 FUEL/IGNITION 8W - 30 - 1 FUEL/IGNITION INDEX page pageAutomatic Shut Down (ASD) Relay . . . . . . . ........... 1 Fuel Pump Relay . . . . . . . . . . . . . . . . . . . . . ........... 2Battery Feed . . . . . . . . . . . . . . . . . . . . . . . . ........... 2 General Information . . . . . . . . . . . . . . . . . . . ........... 1Brake Switch Input . . . . . . . . . . . . . . . . . . . ........... 5 Heated Oxygen Sensor . . . . . . . . . . . . . . . . ........... 3Camshaft Position Sensor . . . . . . . . . . . . . . ........... 3 Idle Air Control (IAC) Motor . . . . . . . . . . . . . ........... 3CCD Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . ........... 5 Ignition Coil . . . . . . . . . . . . . . . . . . . . . . . . . ........... 2Crankshaft Position Sensor . . . . . . . . . . . . . ........... 3 Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . ........... 1Data Link Connector . . . . . . . . . . . . . . . . . . ........... 5 Intake Air Temperature Sensor . . . . . . . . . . . ........... 4Diagram Index—4.0L Engine . . . . . . . . . . . . . ........... 6 Malfunction Indicator Lamp (MIL) . . . . . . . . . ........... 5Diagram Index—5.2L Engine . . . . . . . . . . . . . ........... 6 Manifold Absolute Pressure Sensor . . . . . . . ........... 4Engine Coolant Temperature Sensor . . . . . . ........... 4 Park/Neutral Position Switch . . . . . . . . . . . . ........... 5EVAP/Purge Solenoid . . . . . . . . . . . . . . . . . ........... 5 Power (Device) Ground . . . . . . . . . . . . . . . . ........... 5Exhaust Gas Recirculation Solenoid—5.2L Engine ....... 5 Tachometer Signal . . . . . . . . . . . . . . . . . . . . ........... 5Fuel Injectors . . . . . . . . . . . . . . . . . . . . . . . ........... 2 Throttle Position Sensor . . . . . . . . . . . . . . . . ........... 4Fuel Pump Module . . . . . . . . . . . . . . . . . . . ........... 2 Vehicle Speed Sensor . . . . . . . . . . . . . . . . . ........... 3GENERAL INFORMATION START POSITION The operation of the fuel/ignition systems for the In the START position, the ignition switch connects4.0L and the 5.2L engines available in this vehicle circuit A1 from the 40 amp fuse in cavity 12 of theare similar. The circuit descriptions in this section Power Distribution Center (PDC) to circuit A41. Cir-cover both engine packages. cuit A41 connects to the contact side of the engine Where there are differences, for example Power- starter motor relay.train Control Module (PCM) pin-outs, the circuit de- Also in the START position, the ignition switchscriptions will be shown separately. connects circuit G9 to ground. Circuit G9 connects to the instrument cluster and park brake switch.IGNITION SWITCH RUN POSITIONSTART OR RUN POSITION In the RUN position, the ignition switch connects When the ignition switch is in either the START or circuit A2 from 60 amp fuse 13 in the PDC to circuitRUN positions, it connects circuit A1 to circuit A21. A22. Circuit A22 connects to the fuse block and feedsCircuit A1 is protected by a 40 amp fuse located in the circuits protected by fuses, 17, 18, 19 and 20. Cir-cavity 12 of the Power Distribution Center (PDC), cuit V34 from fuse 20 in the fuse block supplies bat-and is HOT at all times. tery voltage to the vehicle speed control system. Circuit A21 connects between the ignition switchand the 15 amp fuse located in cavity 6 of the PDC. AUTOMATIC SHUT DOWN (ASD) RELAYFrom the fuse in cavity 6, circuit F86 supplies power When the ignition switch is in either the START orto the coil side of the fuel pump relay. At the fuel RUN positions, it connects circuit A1 from fuse 12 inpump relay, circuit F86 is double pinned and suppliespower to the coil side of the Automatic Shut Down the Power Distribution Center (PDC) to circuit A21.(ASD) relay. Circuit F86 also connects to cavity 9 of Circuit A21 supplies battery voltage to fuse 6 in thethe Powertrain Control Module (PCM). PDC. Circuit A21 also connects to a bus bar in the fuse From fuse 6, circuit F86 supplies power to the coilblock that feeds fuses 21 and 22. side of the fuel pump relay. At the fuel pump relay, circuit F86 is double pinned and supplies power toACCESSORY OR RUN POSITION the coil side of the Automatic Shut Down (ASD) re- When the ignition switch is in either the ACCES- lay. The Powertrain Control Module (PCM) providesSORY or RUN positions, it connects circuit A1 to cir- ground for the coil sides of the ASD relay and fuelcuit A31. Circuit A1 is protected by a 40 amp fuse pump relay on circuit K81. Circuit K81 connects tolocated in cavity 12 of the Power Distribution Center cavity 51 of the PCM.(PDC), and is HOT at all times. When the PCM grounds the ASD relay, contacts in- Circuit A31 connects to the fuse block and feeds the side the relay close and connect circuit A5 from fusecircuits connected to fuses 9, 10, and 11. 2 in the PDC to circuit A61. Circuit A61 splices to the
  • 16. 8W - 30 - 2 8W-30 FUEL/IGNITION ZJgenerator field terminal, fuel injectors, and ignition IGNITION COILcoil. Circuit A61 also connects to cavity 57 of the When the Automatic Shut Down (ASD) relay con-PCM. tacts close, they connect circuits A5 and A61. Circuit A61 splices to supply voltage to the ignition coil. TheHELPFUL INFORMATION PCM controls the ground path for the ignition coil on• Circuit A5 originates at fuse 15 in the PDC and circuit K19. Circuit K19 connects to cavity 19 of thecontinues through fuse 2 in the PDC. Circuit A5 also PCM.connects to cavity 3 of the PCM.• Circuit F86 also connects to cavity 9 of the PCM. HELPFUL INFORMATION Circuit A61 splices to supply voltage to the fuel in-BATTERY FEED jectors, ignition coil, PCM, and generator. Circuit A5 from fuse 15 in the Power DistributionCenter (PDC) supplies battery voltage to cavity 3 of FUEL PUMP RELAYthe Powertrain Control Module (PCM). When the ignition switch is in either the START or RUN positions, it connects circuit A1 from fuse 12 inHELPFUL INFORMATION the Power Distribution Center (PDC) to circuit A21.• Circuit A5 originates at fuse 15 in the PDC and Circuit A21 supplies battery voltage to fuse 6 in thecontinues through fuse 2 in the PDC. Circuit A5 con-nects to cavity 3 of the PCM and supplies battery PDC.voltage to the contact sides of the fuel pump relay From fuse 6, circuit F86 supplies power to the coiland Automatic Shut Down (ASD) relay. side of the fuel pump relay. At the fuel pump relay, circuit F86 is double pinned and supplies power toFUEL INJECTORS the coil side of the Automatic Shut Down (ASD) re- When the Automatic Shut Down (ASD) relay con- lay. The Powertrain Control Module (PCM) providestacts close, they connect circuits A5 and A61. Circuit ground for the coil sides of the fuel pump relay andA61 supplies voltage to the fuel injectors. Each injec- ASD relay on circuit K81. Circuit K81 connects totor has a separate ground circuit controlled by the cavity 51 of the PCM.PCM. When the PCM grounds the fuel pump relay, con- Circuit K11 provides ground for injector number tacts inside the relay close and connect circuit A5one. The K11 circuit connects to cavity 16 of the from fuse 15 in the PDC to circuit A64. Circuit A64PCM. connects to the fuel pump (part of the in-tank fuel Circuit K12 provides ground for injector number pump module) and the heated oxygen sensor.two. The K12 circuit connects to cavity 15 of thePCM. HELPFUL INFORMATION Circuit K13 provides ground for injector number • Circuit A5 originates at fuse 15 in the PDC andthree. The K13 circuit connects to cavity 14 of the branches to fuse 2 in the PDC. From fuse 2, circuitPCM. A5 connects to the contact side of the ASD relay. Cir- Circuit K14 provides ground for injector number cuit A5 also connects to cavity 3 of the PCM.four. The K14 circuit connects to cavity 13 of thePCM. FUEL PUMP MODULE Circuit K38 provides ground for injector numberfive. The K38 circuit connects to cavity 38 of the FUEL PUMP MOTORPCM. When the fuel pump relay contacts close, the relay Circuit K58 provides ground for injector number supplies voltage to the fuel pump motor. Circuit A64six. The K58 circuit connects to cavity 58 of the from the relay supplies voltage to the fuel pump mo-PCM. tor. Circuit Z1 provides ground for the fuel pump mo- On 5.2L engines, circuit K17 provides ground for tor.injector number seven. The K17 circuit connects tocavity 17 of the PCM. FUEL LEVEL SENSOR On 5.2L engines, circuit K18 provides ground for The fuel level sensor is a variable resistor. Circuitinjector number eight. The K18 circuit connects to G44 connects the fuel level sensor to the overheadcavity 18 of the PCM. console. Circuit K102 connects the fuel level sensor to the fuel gauge in the instrument cluster. CircuitHELPFUL INFORMATION F87 from fuse 21 in the fuse block supplies voltage to• Circuit A61 splices to supply voltage to the fuel in-jectors, ignition coil, PCM, generator. the fuel gauge. Circuit Z2 provides the ground path• For information about fuel injector operation, refer for the fuel level sensor.to Group 14.
  • 17. ZJ 8W-30 FUEL/IGNITION 8W - 30 - 3HELPFUL INFORMATION Circuit K41 delivers the signal from the heated ox- As current flows through the coils in the fuel ygen sensor to the PCM. Circuit K41 connects to cav-gauge, it creates a magnetic field. One of the coils in ity 41 of the PCM.the gauge receives fixed current. The other coil is The PCM provides a ground for the heated oxygenconnected to the level sensor. The magnetic field con- sensor signal (circuit K41) through circuit K4. Circuittrols the position of the fuel gauge pointer. K4 connects to cavity 4 of the PCM connector. The fuel level sensor contains a variable resistor. Circuit Z12 provides ground for the heater circuitAs the position of the float arm on the fuel level sen- in the sensor.sor changes, the resistor changes the current flowthrough second coil in the fuel gauge. A change in HELPFUL INFORMATIONcurrent flow alters the magnetic field in the fuel • Circuit A64 also supplies battery voltage to the in-gauge, which changes the pointer position. Refer to tank fuel pump.Group 8E, Instrument Panel and Gauges for addi- Circuit K4 splices to supply ground for the signalstional information. from the following: • Heated oxygen sensorIDLE AIR CONTROL (IAC) MOTOR • Camshaft position sensor The Powertrain Control Module (PCM) operates • Crankshaft position sensorthe idle air control motor through 4 circuits - K39, • Intake air temperature sensorK40, K59, and K60. Each circuit connects to separate • Throttle position sensorcavities in the PCM connector. • Manifold absolute pressure sensor• Circuit K39 connects to cavity 59 of the PCM • Engine coolant temperature sensor• Circuit K40 connects to cavity 40 of the PCM • Vehicle speed sensor• Circuit K59 connects to cavity 60 of the PCM• Circuit K60 connects to cavity 39 of the PCM CAMSHAFT POSITION SENSOR The Powertrain Control Module (PCM) supplies 8VEHICLE SPEED SENSOR volts to the camshaft position sensor (in distributor) Circuit K25 supplies 8 volts from the Powertrain on circuit K25. Circuit K25 connects to cavity 7 ofControl Module (PCM) to the vehicle speed sensor. the PCM.The K25 circuit connects to cavity 7 of the PCM. The PCM receives the camshaft position sensor sig- Circuit G7 from the vehicle speed sensor provides nal on circuit K24. Circuit K24 connects to cavity 44an input signal to the PCM. The G7 circuit connects of the PCM.to cavity 47 of the PCM. The PCM provides a ground for the camshaft posi- The PCM provides a ground for the vehicle speed tion sensor signal (circuit K24) through circuit K4.sensor signal (circuit G7) through circuit K4. Circuit Circuit K4 connects to cavity 4 of the PCM.K4 connects to cavity 4 of the PCM. HELPFUL INFORMATIONHELPFUL INFORMATION • Circuit K25 splices to supply 8 volts to the crank-• Circuit G7 splices to the speedometer, and vehicle shaft position sensor and the vehicle speed sensor.information center. Circuit K4 splices to supply ground for the signals• Circuit K25 splices to supply 8 volts to the cam- from the following:shaft position sensor and crankshaft position sensor. • Heated oxygen sensor Circuit K4 splices to supply ground for the signals • Camshaft position sensorfrom the following: • Crankshaft position sensor• Heated oxygen sensor • Intake air temperature sensor• Camshaft position sensor • Throttle position sensor• Crankshaft position sensor • Manifold absolute pressure sensor• Throttle position sensor • Engine coolant temperature sensor• Manifold absolute pressure sensor • Vehicle speed sensor• Engine coolant temperature sensor• Intake air temperature sensor CRANKSHAFT POSITION SENSOR The Powertrain Control Module (PCM) supplies 8HEATED OXYGEN SENSOR volts to the crankshaft position sensor on circuit K25. When the fuel pump relay contacts close, they con- Circuit K25 connects to cavity 7 of the PCM.nect circuits A5 and A64. Circuit A64 supplies volt- The PCM receives the crankshaft position sensorage to the heated oxygen sensor. signal on circuit K27. Circuit K27 connects to cavity 24 of the PCM.
  • 18. 8W - 30 - 4 8W-30 FUEL/IGNITION ZJ The PCM provides a ground for the crankshaft po- Circuit K6 splices to supply 5 volts to the manifoldsition sensor (circuit K27) through circuit K4. Circuit absolute pressure sensor.K4 connects to cavity 4 of the PCM. On vehicles equipped with the 4.0L engine and au- tomatic transmission, circuit K22 splices to theHELPFUL INFORMATION transmission control module.• Circuit K25 splices to supply 8 volts to the cam- Circuit K4 splices to supply ground for the signalsshaft position sensor and the vehicle speed sensor. from the following: Circuit K4 splices to supply ground for the signals • Heated oxygen sensorfrom the following: • Camshaft position sensor• Heated oxygen sensor • Crankshaft position sensor• Camshaft position sensor • Intake air temperature sensor• Crankshaft position sensor • Throttle position sensor• Intake air temperature sensor • Manifold absolute pressure sensor• Throttle position sensor • Engine coolant temperature sensor• Manifold absolute pressure sensor • Vehicle speed sensor• Engine coolant temperature sensor• Vehicle speed sensor MANIFOLD ABSOLUTE PRESSURE SENSOR From the Powertrain Control Module (PCM), cir-ENGINE COOLANT TEMPERATURE SENSOR cuit K6 supplies 5 volts to the manifold absolute The engine coolant temperature sensor provides an pressure (MAP) sensor. Circuit K6 connects to cavityinput to the Powertrain Control Module (PCM) on 6 of the PCM.circuit K2. From circuit K2, the engine coolant tem-perature sensor draws up to 5 volts from the PCM. Circuit K70 delivers the MAP signal to the PCM.The sensor is a variable resistor. As coolant temper- Circuit K70 connects to cavity 1 of the PCM.ature changes, the resistance in the sensor changes, The PCM provides a ground for the MAP sensorcausing a change in current draw. The K2 circuit signal (circuit K70) through circuit K4. Circuit K4connects to cavity 2 of the PCM. connects to cavity 4 of the PCM. The PCM provides a ground for the engine coolanttemperature sensor signal (circuit K2) through circuit HELPFUL INFORMATIONK4. Circuit K4 connects to cavity 4 of the PCM con- Refer to Group 14 for MAP sensor operation.nector. Circuit K6 splices to supply 5 volts to the throttle position sensor.HELPFUL INFORMATION Circuit K4 splices to supply ground for the signals Circuit K4 splices to supply ground for the signals from the following:from the following: • Heated oxygen sensor• Heated oxygen sensor • Camshaft position sensor• Camshaft position sensor • Crankshaft position sensor• Crankshaft position sensor • Intake air temperature sensor• Intake air temperature sensor • Throttle position sensor• Throttle position sensor • Manifold absolute pressure sensor• Manifold absolute pressure sensor • Engine coolant temperature sensor• Engine coolant temperature sensor • Vehicle speed sensor• Vehicle speed sensor INTAKE AIR TEMPERATURE SENSORTHROTTLE POSITION SENSOR The intake air temperature sensor provides an in- From the Powertrain Control Module (PCM), cir- put to the Powertrain Control Module (PCM) on cir-cuit K6 supplies 5 volts to the throttle position sen- cuit K21. Circuit K21 connects to cavity 21 of thesor (TPS). Circuit K6 connects to cavity 6 of the PCM.PCM. Circuit K22 delivers the TPS signal to the PCM. From circuit K21, the intake air temperature sen-Circuit K22 connects to cavity 22 of the PCM. sor draws voltage from the PCM. The sensor is a The PCM provides a ground for the throttle posi- variable resistor. As intake air temperature changes,tion sensor signal (circuit K22) through circuit K4. the resistance in the sensor changes, causing aCircuit K4 connects to cavity 4 of the PCM. change in current draw. The PCM provides a ground for the intake air tem-HELPFUL INFORMATION perature sensor signal (circuit K21) through circuit Refer to Group 14 for throttle position sensor oper- K4. Circuit K4 connects to cavity 4 of the PCM.ation.
  • 19. ZJ 8W-30 FUEL/IGNITION 8W - 30 - 5HELPFUL INFORMATION tor lamp on circuit G3. The MIL displays the mes- Circuit K4 splices to supply ground for the signals sage CHECK ENGINE when illuminated. Circuit G3from the following: connects to cavity 32 of the PCM.• Heated oxygen sensor• Camshaft position sensor DATA LINK CONNECTOR• Crankshaft position sensor Circuit F86 supplies battery voltage to the data• Intake air temperature sensor link connector. Circuit F86 originates at fuse 6 in the• Throttle position sensor Power Distribution Center (PDC).• Manifold absolute pressure sensor Circuit A21 from the ignition switch powers fuse 6• Engine coolant temperature sensor when the switch is in the START or RUN positions. In• Vehicle speed sensor the START or RUN position the ignition switch connects circuit A1 from fuse 12 in the PDC with circuit A21.EVAP/PURGE SOLENOID Circuit D84 connects to cavity 25 of the PCM. Cir- Circuit F86 supplies voltage to the EVAP/Purge so- cuit D84 is the SCI receive circuit for the PCM.lenoid. This circuit is HOT in the START and RUN Circuit D83 connects to cavity 45 of the PCM. Cir-positions only. Circuit F86 also splices to provide cuit D83 is the SCI transmit circuit for the PCM. Circuit Z12 provides ground for the data link con-power to the data link connector, overdrive solenoid, nector. Circuit Z12 also connects to cavities 5, 11 andTCC solenoid, and EGR solenoid (5.2L engine only). 12 of the PCM to provide the power (device) ground. Circuit F86 is protected by a 15 amp fuse locatedin cavity 6 of the Power Distribution Center (PDC). HELPFUL INFORMATION The Powertrain control Module (PCM) controls the • Circuit Z12 also supplies a ground for the PCMground path for the solenoid on circuit K52. Circuit high current drivers.K52 connects to cavity 52 of the PCM connector. • If the system loses ground for the Z12 circuits, the vehicle will not operate.EXHAUST GAS RECIRCULATION SOLENOID—5.2L • Circuit F86 splices to supply battery voltage to theENGINE heated rear window switch, overdrive switch, vehicle Circuit F86 supplies voltage to the EGR solenoid. theft alarm module and rear lighting system. CircuitThis circuit is HOT in the START and RUN positions F86 also powers the coil side of the Automatic Shutonly. Circuit F86 also splices to provide power to the Down relay and fuel pump relay.data link connector, overdrive solenoid and TCC sole-noid, and the EVAP/Purge solenoid. BRAKE SWITCH INPUT Circuit F86 is protected by a 15 amp fuse located Circuit L53 provides the brake switch input to thein cavity F6 of the Power Distribution Center (PDC). PCM. Circuit L53 connects to cavity 29 of the PCM. The Powertrain Control Module (PCM) controls theground path for the solenoid on circuit K35. Circuit POWER (DEVICE) GROUNDK35 connects to cavity 35 of the PCM connector. Circuit Z12 connects to cavities 5, 11 and 12 of the PCM. The Z12 circuit provides ground for PCM inter-PARK/NEUTRAL POSITION SWITCH nal drivers that operate high current devices like the When closed, the case-grounded park/neutral posi- injectors and ignition coil.tion switch provides a ground path on circuit T41 for Internal to the PCM, the power (device) ground cir-the coil side of the starter motor relay. Circuit A41 cuit connects to the PCM sensor return circuit (fromfrom the ignition switch provides battery voltage to circuit K4).the coil side of the relay. Circuit T41 splices to cavity 30 of the PCM. The HELPFUL INFORMATIONpark/neutral position switch provides an input to the • If the system loses ground for the Z12 circuits, thePowertrain Control Module (PCM). vehicle will not operate. Check the connection at the ganged-ground circuit eyelet.TACHOMETER SIGNAL The Powertrain Control Module (PCM) supplies the CCD BUSsignal for the tachometer on circuit G21. Circuit G21 On vehicles equipped with the 4.0L engine, circuitsconnects to cavity 43 of the PCM. The Transmission D1 and D2 connect the Powertrain Control ModuleControl Module (TCM) also receives the tachometer (PCM) to the CCD Bus. Circuit D1 connects to cavity 26signal from the PCM. of the PCM. Circuit D2 connects to cavity 46 of the PCM. Circuits D1 and D2 are a twisted pair of wires.MALFUNCTION INDICATOR LAMP (MIL) Both circuits D1 and D2 connect to the second data The Powertrain Control Module (PCM) provides link connector located behind left from side of theground for the instrument cluster malfunction indica- center console.
  • 20. 8W - 30 - 6 8W-30 FUEL/IGNITION ZJDIAGRAM INDEX—4.0L ENGINE DIAGRAM INDEX—5.2L ENGINEComponent Page Component PageABS Data Link Connector . . . . . . . . . . . . . . . . . .8W-30-15 ABS Data Link Connector . . . . . . . . . . . . . . . . . .8W-30-28Automatic Shut Down Relay . . . . . . . . . . . . . . . . .8W-30-8 Automatic Shut Down Relay . . . . . . . . . . . . . . . . .8W-30-20Camshaft Position Sensor . . . . . . . . . . . . . . . . . .8W-30-13 Camshaft Position Sensor . . . . . . . . . . . . . . . . . .8W-30-25Crankshaft Position Sensor . . . . . . . . . . . . . . . . .8W-30-13 Crankshaft Position Sensor . . . . . . . . . . . . . . . . .8W-30-25Data Link Connector . . . . . . . . . . . . . . . . . . . . . .8W-30-16 Data Link Connector . . . . . . . . . . . . . . . . . . . . . .8W-30-27Engine Coolant Temperature Sensor . . . . . . . . . . . .8W-30-12 Engine Coolant Temperature Sensor . . . . . . . . . . . .8W-30-24EVAP/Purge Solenoid . . . . . . . . . . . . . . . . . . . . .8W-30-14 EGR Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-26Fuel Pump Relay . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-8 EVAP/Purge Solenoid . . . . . . . . . . . . . . . . . . . . .8W-30-26Fuel Injectors . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-10 Fuel Pump Relay . . . . . . . . . . . . . . . . . . . . . . . .8W-30-20Fuel Pump Module . . . . . . . . . . . . . . . . . . . . . . .8W-30-9 Fuel Injectors . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-22Fuse 2 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-8 Fuel Pump Module . . . . . . . . . . . . . . . . . . . . . . .8W-30-21Fuse 3 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-30-8, 15 Fuse 2 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-20Fuse 6 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-30-8, 14 Fuse 3 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-30-20, 28Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . .8W-30-7, 8, 14 Fuse 5 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-20Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-7 Fuse 6 (PDC) . . . . . . . . . . . . . . . . . . . . .8W-30-20, 26, 27Fuse 15 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-30-8, 15 Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . .8W-30-19, 20, 27Heated Oxygen Sensor . . . . . . . . . . . . . . . . . . . .8W-30-14 Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-19Idle Air Control Motor . . . . . . . . . . . . . . . . . . . . .8W-30-11 Fuse 15 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-28Ignition Coil . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-11 Heated Oxygen Sensor . . . . . . . . . . . . . . . . . . . .8W-30-26Ignition Switch . . . . . . . . . . . . . . . . . . . . . . .8W-30-7, 14 Idle Air Control Motor . . . . . . . . . . . . . . . . . . . . .8W-30-23Intake Air Temperature Sensor . . . . . . . . . . . . . . .8W-30-12 Ignition Coil . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-23Manifold Absolute Pressure Sensor . . . . . . . . . . . .8W-30-12 Ignition Switch . . . . . . . . . . . . . . . . .8W-30-19, 20, 26, 27Powertrain Control Module . . . . . . . . . . . . .8W-30-8 thru 18 Intake Air Temperature Sensor . . . . . . . . . . . . . . .8W-30-24Rolls Connector . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-16 Manifold Absolute Pressure Sensor . . . . . . . . . . . .8W-30-24Stop Lamp Switch . . . . . . . . . . . . . . . . . . . . . . .8W-30-18 Powertrain Control Module . . . . . . . . . . . .8W-30-20 thru 31Throttle Position Sensor . . . . . . . . . . . . . . . . . . .8W-30-12 Rolls Connector . . . . . . . . . . . . . . . . . . . . . . . . .8W-30-27Transmission Control Module . . . . . . . . . . . . . . . .8W-30-15 Stop Lamp Switch . . . . . . . . . . . . . . . . . . . . . . .8W-30-30Vehicle Speed Sensor . . . . . . . . . . . . . . . . . . . . .8W-30-13 Throttle Position Sensor . . . . . . . . . . . . . . . . . . .8W-30-24 Vehicle Speed Sensor . . . . . . . . . . . . . . . . . . . . .8W-30-25
  • 21. ZJ 8W-31 TRANSMISSION CONTROLS 8W - 31 - 1 TRANSMISSION CONTROLSOVERDRIVE SWITCH Circuit A14 from fuse 3 in the Power Distribution Vehicles equipped with an automatic transmission Center (PDC) supplies battery voltage to the Transmis-may have an overdrive switch. The operator disables sion Control Module (TCM). Circuit A5 from fuse 15 inor enables overdrive when the switch is depressed. the PDC supplies voltage to circuit A14 through PDC The overdrive system consists of a switch connected fuse 3.to the Powertrain Control Module (PCM) and an over- When the ignition switch is in the START or RUNdrive ON/OFF indicator lamp. position, circuit A1 from fuse 12 in the PDC connects If overdrive is currently enabled, it is disabled when to circuit A21. Circuit A21 feeds circuit F86 throughthe operator depresses the overdrive switch. Conversely, fuse 6 in the PDC. Circuit F86 connects to the TCM.if the operator already disabled overdrive, it is enabled The TCM receives the Throttle Position Sensorwhen the switch is depressed. The overdrive lamp illu- (TPS) signal on circuit K22. On circuit G7 the TCMminates when overdrive is disabled. receives the vehicle speed sensor signal. The Power- Circuit T9 from the overdrive switch connects to the train Control Module (PCM) supplies 8 volts to theTransmission Control Module (TCM) on vehicles vehicle speed sensor on circuit K25 and 5 volts to theequipped with 4.0L engines or the Powertrain Control TPS on circuit K6. Circuit K4 from the PCM providesModule (PCM) on vehicles equipped with 5.2L en- ground for the signals from both sensors.gines. Circuit T9 provides the overdrive signal. Cir- The TCM provides voltage and ground for the over-cuit Z1 provides ground for the switch. drive solenoid, electronic governor, and Torque Con- In the START and RUN position, the ignition switch verter Clutch (TCC) solenoid. Circuit T20 from the TCMconnects circuit A1 from fuse 12 in the Power Distribu- supplies voltage. The TCM provides ground for the over-tion Center (PDC) with circuit A21. Circuit A21 powers drive solenoid on circuit T60, the electronic governor oncircuit F87 through fuse 21 in the fuse block. Circuit F87 circuit T59 and the TCC solenoid on circuit T22.supplies battery voltage for the overdrive lamp. On circuit T33, the TCM supplies 5 volts to the On vehicles equipped with 4.0L engines, the TCM transmission temperature sensor, and the governorturns the overdrive ON/OFF indicator lamp ON or OFF pressure sensor. The ground path for the sensors is onby providing a ground for the lamp on circuit G68. circuit T35 to the TCM. On vehicles equipped with 5.2L engines, the PCM Circuits D5 and D82 from the TCM connect to theturns the overdrive ON/OFF indicator lamp ON or OFF data link connector. Circuit Z1 provides ground forby providing a ground for the lamp on circuit G68. the data link connector and TCM. Circuit A14 sup- plies voltage to the connector for the scan tool.HELPFUL INFORMATION The overdrive lamp is a Light Emitting Diode UPSHIFT LAMP(LED). On vehicles equipped with a manual transmission, the PCM grounds the up-shift lamp on circuit K54.OVERDRIVE SOLENOID AND TORQUE CONVERTER Circuit K54 connects to cavity 54 of the PCM.CLUTCH (TCC) SOLENOID—5.2L ENGINE The overdrive solenoid and Torque Converter DIAGRAM INDEXClutch (TCC) solenoid are molded together. CircuitF86 supplies voltage to both solenoids. The Power- Component Pagetrain Control Module (PCM) provides ground for the Data Link Connector . . . . . . . . . . . . . . . . . . . . . . .8W-31-2overdrive solenoid on circuit T60. Refer to Overdrive Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . .8W-31-2, 5, 6Switch in this section. Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-31-6 The Powertrain Control Module (PCM) provides Overdrive Switch . . . . . . . . . . . . . . . . . . . . . . .8W-31-5, 6ground for the TCC solenoid on circuit T6. Overdrive and TCC Solenoids . . . . . . . . . . . . . . . . .8W-31-6 Power Distribution Center (PDC) . . . . . . . . . . . .8W-31-2, 5, 6TRANSMISSION CONTROL MODULE—4.0L Powertrain Control Module . . . . . . . . . . . . . . .8W-31-4, 5, 6 Throttle Position Sensor . . . . . . . . . . . . . . . . . . . .8W-31-4ENGINE Transmission Control Module . . . . . . . . . . . . .8W-31-2 thru 5 The Transmission Control Unit (TCM) operates the Transmission Output Speed Sensor . . . . . . . . . . . . .8W-31-542RE transmission used with 4.0L engines. The TCM Transmission Solenoid Assembly . . . . . . . . . . . . . . .8W-31-3controls the electronic governor, overdrive solenoid, Vehicle Speed Sensor . . . . . . . . . . . . . . . . . . . . . .8W-31-4and Torque Convertor Clutch (TCC) solenoid.
  • 22. ZJ 8W-32 ANTI-LOCK BRAKES 8W - 32 - 1 ANTI-LOCK BRAKES INDEX page pageABS Pump Motor Relay . . . . . . . . . . . . . . . . ........... 1 Diagram Index . . . . . . . . . .... . . . . . . . . . . ........... 2ABS System Relay . . . . . . . . . . . . . . . . . . . ........... 1 General Information . . . . . .... . . . . . . . . . . ........... 1ABS Warning Lamp . . . . . . . . . . . . . . . . . . . ........... 2 Hydraulic Control Unit . . . .... . . . . . . . . . . ........... 2Acceleration Switch . . . . . . . . . . . . . . . . . . . ........... 1 Pump Motor Speed Sensor ... . . . . . . . . . . ........... 2Brake Switch Input . . . . . . . . . . . . . . . . . . . ........... 2 Wheel Speed Sensors . . . .... . . . . . . . . . . ........... 1Data Link Connector . . . . . . . . . . . . . . . . . . ........... 2GENERAL INFORMATION Circuits B4 and B3 provide signals to ABS control Three fuses supply power for the Anti-Lock Brake module from the left rear wheel speed sensor. CircuitSystem (ABS); fuses 7 (40 amp) and 9 (20 amp) in B3, which provides the LOW signal, connects to cavitythe Power Distribution Center (PDC) and fuse 15 (3 28 of the ABS control module. Circuit B4 connects toamp) in the fuse block. Fuses 7 and 9 in the PDC are cavity 46 of the module and provides the HIGH signal.connected directly to battery voltage and are HOT alltimes. Fuse 15 in the fuse block is HOT when the ig- ACCELERATION SWITCHnition switch is the RUN Position. During four-wheel drive operation, the acceleration In the RUN position, the ignition switch connects switch provides deceleration data to the ABS controlcircuit A2 from fuse 13 in the PDC with circuit A22. module. Refer to Group 5, Brakes for additional infor-Circuit A22 connects to a bus bar in the fuse block. mation.The bus bar feeds circuit 236 through fuse 15. Circuits B41, B42, and B43 connect the accelera- Circuit 236 connects to the coil side of the ABS sys- tion sensor to the ABS control module. Circuits B41tem relay and cavity 53 of the ABS control module. and B42 provide switch states while circuit B43 pro- Circuit Z1 provides ground for the ABS control vides ground. At the ABS control module, circuit B41module. Circuit Z1 connects to cavities 1 and 19 of connects to cavity 25, circuit B42 connects to cavitythe ABS control module. 43 and circuit B43 connects to cavity 26. Refer to group 5, Brakes for operational descrip-tions of ABS system components. ABS SYSTEM RELAY The ABS system relay is located in the Power Distri-WHEEL SPEED SENSORS bution Center (PDC). When the ABS module grounds The all wheel anti-lock system uses four wheel the ABS system relay on circuit 207, the relay switchesspeed sensors; one for each wheel. Each sensor con- to connect circuit A20 from PDC fuse 9 to circuit 235. Circuit 236 from fuse 7 in the fuse block feeds the coilverts wheel speed into an electrical signal that it side of the ABS system relay. Circuit 207 connects totransmits to the ABS control module. A pair of cavity 34 of the ABS control module.twisted wires connect to each sensor to provide sig- Circuit 235 is double crimped at the ABS system re-nals to the ABS control module. lay. One branch of circuit 235 supplies power to the coil Circuits B6 and B7 provide signals to ABS control side of the ABS pump motor relay. The other branch ofmodule from the right front wheel speed sensor. Circuit circuit 235 splices to cavities 3 and 33 of the ABS con-B6 which provides the LOW signal connects to cavity 29 trol module and to the hydraulic control unit.of the ABS control module. Circuit B7 connects to cavity47 of the module and provides the HIGH signal. ABS PUMP MOTOR RELAY Circuits B8 and B9 provide signals to ABS control The ABS pump motor relay in the Power Distributionmodule from the left front wheel speed sensor. Circuit Center (PDC) supplies voltage to the ABS pump motor.B8, which provides the HIGH signal, connects to cavity When the ABS power relay energizes, circuit 235 sup-30 of the ABS control module. Circuit B9 connects to plies battery voltage to the coil side of the ABS pumpcavity 48 of the module and provides the LOW signal. motor relay. The ABS control module provides ground Circuits B1 and B2 provide signals to ABS control for the relay on circuit B116. Circuit B116 connects tomodule from the right rear wheel speed sensor. Cir- cavity 15 of the ABS control module.cuit B1 which provides the HIGH signal connects to When the ABS pump motor energizes, it connectscavity 45 of the ABS control module. Circuit B2 con- circuit A10 from PDC fuse 7 to circuit B120. Circuitnects to cavity 27 of the module and provides the B120 supplies battery voltage to the pump motor.LOW signal. Circuit Z1 provides ground for the pump motor.
  • 23. 8W - 32 - 2 8W-32 ANTI-LOCK BRAKES ZJPUMP MOTOR SPEED SENSOR relay when the relay is not energized. The ABS con- The input from the pump motor speed sensor tells trol module illuminates the lamp by providingthe ABS control module that the pump is operating. ground on circuit 205.Circuits B219 and B220 from the control module con- Circuit 205 splices to connect to circuit 235 through anect to the speed sensor. diode. When the ABS power relay is not energized, it Circuit B219 connects to cavity 31 of the ABS con- connects circuit 235 to circuit Z1. The ground path fortrol module. Circuit B220 connects to cavity 49 of the the warning lamp is through the diode to circuit 235,ABS control module. through the ABS power relay to ground on circuit Z1. The diode between circuit 205 and 235 preventsBRAKE SWITCH INPUT voltage from flowing to the ABS control module when Circuit L50 from the stop lamp provides the brake the ABS power relay switches to supply power on cir-switch input to the ABS control module. When the cuit 235.brake pedal is depressed, the stop lamp switch closesto supply battery voltage from circuit L16 to circuit DATA LINK CONNECTORL50. Circuit L50 connects to cavity 32 of the ABS Circuit D1 from cavity 23 of the ABS control mod-control module. Circuit L16 originates at fuse 2, a 15 ule receives data from the DRB scan tool through theamp, in the fuse block. data link connector. The ABS control module trans- mits data to the scan tool through the connector onHYDRAULIC CONTROL UNIT circuit D2. Circuit D2 originates at cavity 42 of the ABS control module. When the ABS power relay energizes, two branches Through the data link connector, circuit Z12 pro-of circuit 235 splice to supply voltage to the isolation vides ground for the DRB scan tool.and dump solenoids in the hydraulic control unit.The hydraulic control unit contains three separate HELPFUL INFORMATIONisolation solenoids and three separate dump sole- • Check the 40 amp fuse in cavity 7 of the PDCnoids. The ABS control module activates the isolation • Check the 20 amp fuse in cavity 9 of the PDCand dump solenoids by providing separate ground • Check the 3 amp fuse in cavity 15 of the fuse blockpaths for each. • Check the grounding points at the left and right The ABS module provides a ground path for the fender side shieldsrear isolation solenoid on circuit B251. Circuit B251 • Refer to the appropriate section of the Serviceconnects to cavity 54 of the ABS control module. Manual or the Diagnostic Test Procedures manual. For the right front isolation solenoid, the ABS mod-ule provides a ground path on circuit B249. Circuit DIAGRAM INDEXB249 connects to cavity 38 of the ABS control mod-ule. Component Page On circuit B245, the ABS module provides ground ABS Control Module . . . . . . . . . . . . . . . . . .8W-32-3 thru 8for the left front isolation solenoid. Circuit B245 con- ABS Data Link Connector . . . . . . . . . . . . . . . . . . .8W-32-8nects to cavity 20 of the ABS control module. ABS Pump Motor . . . . . . . . . . . . . . . . . . . . . . . .8W-32-5 The ABS module provides a ground path for the ABS Pump Motor Relay . . . . . . . . . . . . . . . . . . . .8W-32-4rear dump solenoid on circuit B254. Circuit B254 ABS System Relay . . . . . . . . . . . . . . . . . . . . . . . .8W-32-4connects to cavity 36 of the ABS control module. ABS Warning Lamp . . . . . . . . . . . . . . . . . . . . . . .8W-32-3 Acceleration Switch . . . . . . . . . . . . . . . . . . . . . . .8W-32-5 For the right front dump solenoid, the ABS module Diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-32-3provides a ground path on circuit B248. Circuit B248 Fuse 2 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-32-3connects to cavity 21 of the ABS control module. Fuse 7 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-32-4 On circuit B243, the ABS module provides ground Fuse 9 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-32-4for the left dump solenoid. Circuit B243 connects to Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-32-3cavity 2 of the ABS control module. Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-32-3 Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-32-4ABS WARNING LAMP Fuse 15 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-32-4 Circuit F87 from fuse 21 in the fuse block and cir- Fuse 18 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-32-4cuit G5 from fuse 22 in the fuse block supply voltage Fuse 21 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-32-3to the ABS warning lamp. Circuits F87 and G5 are Hydraulic Control Unit . . . . . . . . . . . . . . . . . . . . .8W-32-6HOT when the ignition switch is in the START or Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-32-3, 4RUN position. Lamp Outage Module (LOM) . . . . . . . . . . . . . . . . .8W-32-3 Ground for the ABS warning lamp is provided by Powertrain Control Module . . . . . . . . . . . . . . . . . .8W-32-8 Stop Lamp Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-32-3either the ABS control module or by the ABS power Wheel Speed Sensors . . . . . . . . . . . . . . . . . . . . . .8W-32-7
  • 24. ZJ 8W-33 VEHICLE SPEED CONTROL 8W - 33 - 1 VEHICLE SPEED CONTROLVEHICLE SPEED CONTROL Circuit V31 provides the SET/COAST signal to cav- The Powertrain Control Module (PCM) operates ity 48 of the PCM. Circuit V33 sends the RESUME/the vehicle speed control system. The vehicle speed ACCELERATE signal to cavity 50 of the PCM.control switches are located in the steering wheel, be- Circuit L53 connects to cavity 29 of the PCM andlow the airbag. to ground through the stop lamp switch. When the Circuit V34 from fuse 20, a 10 amp, in the fuse stop lamp switch opens, voltage is removed from theblock supplies battery voltage to the vehicle speed servo on circuit V30 and the PCM vents the servo.control ON/OFF switch. Circuit A22 supplies voltage From the stop lamp switch, circuit Z1 providesto fuse 20 when the ignition switch is in the RUN po- ground for circuit L53.sitions. In the RUN position the ignition switch con-nects circuit A22 with circuit A2. Fuse 13 in the HELPFUL INFORMATIONPower Distribution Center (PDC) protects circuit A2. • Check the 10 amp fuse in cavity 20 of the fuse The vehicle speed control ON/OFF switch supplies blockvoltage to the SET/COAST and RESUME/ACCEL • Check fuse 13 in the PDCswitches. Both switches send signals to the PCM. The PCM controls the vent and vacuum functions DIAGRAM INDEXof the speed control servo on circuits V35 and V36.Depending on the signal it receives from vehicle Component Pagespeed control switches, the PCM either applies vac- Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-33-2uum to or vents vacuum from the servo. Circuit V36 Fuse 20 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-33-2from cavity 33 of the PCM sends the vacuum signal Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-33-2to the servo. Circuit V35 from cavity 53 sends the Powertrain Control Module . . . . . . . . . . . . . . . . . .8W-33-2vent signal. Stop Lamp Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-33-3 Circuit V32 signals to the PCM that the speed con- Vehicle Speed Control Servo . . . . . . . . . . . . . . . . .8W-33-2trol switch is in the ON position. The V32 circuit con- Vehicle Speed Control Switch . . . . . . . . . . . . . . . . .8W-33-2nects to cavity 49 of the PCM. Circuit V32 alsoconnects to the stop lamp switch. In the closed position, the stop lamp switch con-nects circuit V32 with circuit V30 to power the speedcontrol servo. Circuit Z1 provides ground for thespeed control servo.
  • 25. ZJ 8W-39 VEHICLE ALARM 8W - 39 - 1 VEHICLE THEFT ALARM INDEX page pageDiagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2 System Operation . . . . . . . . . . . . . . . . . . . . ........... 1SYSTEM OPERATION DOOR AJAR SWITCH OPERATION The optional Vehicle Theft Alarm (VTA) is used to The VTA system uses the door/liftgate ajarprotect the vehicle from theft by monitoring the ve- switches to provide an input to the VTA module.hicle doors, ignition switch, power door lock circuits, These switches are normally OPEN with the doors/and the trunk key cylinder to determine if the alarm liftgate closed. When a door or the liftgate is openedshould be sounded and the ignition system disabled. the switch CLOSES completing a path to ground. A Vehicle Theft Alarm (VTA) module, and a VTA Circuit M2 is used to monitor the doors. This circuitrelay are used to control for the system. The VTA is also used as the ground circuit for the interiormodule is located on the left rear side of the glove lamps.box, and the relay is located in the relay center un- The G85 circuit is used for the liftgate ajar switchder the glove box. input to the VTA module. The VTA system uses a SET lamp located in the in-strument cluster to indicate when the system is ARMING INPUTARMED. The lamp is supplied power on circuit F70 The keyless entry module is used to supply theat the instrument cluster. This circuit is protected by VTA module with the arming input. This is accom-a 20 amp fuse located in the fuse block, cavity 14, plished on circuit G49.and HOT at all times. Power for the fuse is suppliedby circuit A7 from the Power Distribution Center DISARM SWITCH OPERATION(PDC) fuse 14. There are three switches used to ARM and DIS- The VTA module controls ground for the lamp on ARM the system. Two are located in the left frontcircuit G69. and right front doors, and the third is located in the For additional information on VTA system opera- liftgate. These switches are normally OPEN. Whention refer to group 8Q in this Service Manual. the switch is CLOSED a path to ground is completed. All of the switches are wired together and a singleVEHICLE THEFT ALARM MODULE The Vehicle Theft Alarm (VTA) module controls the input is provided to the module on circuit G71.operation of the VTA system. Power for the module is HOOD SWITCHsupplied from several sources. A constant battery The hood ajar switch is normally OPEN and casefeed is supplied on circuit X3. This circuit is HOT at grounded. When the switch closes, it provides a pathall times, and protected by a 15 amp fuse located in to ground on circuit G70.cavity 6 of the fuse block. Power for the fuse is sup-plied by circuit A7 from the Power Distribution Cen- VEHICLE THEFT ALARM RELAYter (PDC) fuse 14. The Vehicle Theft Alarm (VTA) relay, located in the Power is also supplied by circuits F86 and F87. The relay center under the glove box, is used for head-F86 circuit is HOT in the ACCESSORY and RUN po- lamp operation when the alarm has been triggered.sitions. This circuit is protected by a 10 amp circuitbreaker located in cavity 27 of the fuse block. Power When the alarm has been triggered, the VTA mod-for the circuit breaker is supplied by circuit A31 from ule supplies power to the coil side of the VTA relaythe ignition switch. Circuit F87 supplies power to the on circuit G79. This causes the relay to energize con-module in the START or RUN positions and is pro- necting circuits L11, which is the feed for the FLASHtected by a 15 amp fuse located in cavity 21 of the TO PASS portion of the dimmer switch, to circuit L3.fuse block. Circuit L3 is the feed for the high beam head- The VTA module uses the CCD bus to communicate lamps. The VTA module cycles the power to the VTAwith the Powertrain Control Module (PCM). Circuit relay causing the headlamps to flash.D1 is the CCD (+) and circuit D2 is the CCD(-). Ground for the coil side of the VTA relay is sup- Ground for the VTA module is supplied on the Z1 plied on circuit Z1.circuit from two cavities of the module.
  • 26. 8W - 39 - 2 8W-39 VEHICLE ALARM ZJPARK LAMPS DIAGRAM INDEX When the alarm is triggered, the VTA module sup-plies power to the front and rear parking lamps on Component Pagecircuit L90. ABS Control Module . . . . . . . . . . . . . . . . . . . . . .8W-39-11 Circuit Breaker 27 . . . . . . . . . . . . . . . . . . . . . . . .8W-39-3HORN OPERATION Door Cylinder Switches . . . . . . . . . . . . . . . . . . . .8W-39-10 When the alarm is triggered, the VTA module pro- Door Ajar Switches . . . . . . . . . . . . . . . . . . . . . . .8W-39-9vides ground for the horn relay on circuit X4. This Fuse 6 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-39-4causes the horn relay to energize and the horns to Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-39-3operate. Fuse 13 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-39-4 Fuse 14 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-39-6HELPFUL INFORMATION Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-39-4, 6• Check the fuses in cavities 6, 7, and 21 of the fuse Fuse 21 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-39-3 Hood Ajar Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-39-8block Horn Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-39-4• Check the 10 amp circuit breaker located in cavity Horns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-39-427 of the fuse block Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-39-3• Check the door and liftgate ajar switches for a Instrument Cluster . . . . . . . . . . . . . . . . . . . . . . . .8W-39-6good ground Liftgate Ajar Switch . . . . . . . . . . . . . . . . . . . . . . .8W-39-8• Refer to the appropriate group of the Service Man- Liftgate Key Cylinder . . . . . . . . . . . . . . . . . . . . . .8W-39-10ual or the Diagnostic Test Procedures Manual for ad- Liftglass Ajar Switch . . . . . . . . . . . . . . . . . . . . . .8W-39-8ditional diagnostic procedures Powertrain Control Module . . . . . . . . . . . . . . . . . .8W-39-11 Remote Keyless Entry Module . . . . . . . . . . . . . .8W-39-5, 9 Vehicle Information Center . . . . . . . . . . . . . . . . . . .8W-39-8 Vehicle Theft Alarm (VTA) Module . . . . . . . .8W-39-3 thru 11 Vehicle Theft Alarm Relay . . . . . . . . . . . . . . . . . . .8W-39-5
  • 27. ZJ 8W-40 INSTRUMENT CLUSTER 8W - 40 - 1 INSTRUMENT CLUSTER INDEX page pageABS Warning Lamp . . . . . . . . . . . . . .. . . . . ........... 2 Malfunction Indicator Lamp (MIL) . . .. . . . . . ........... 2Airbag Warning Lamp . . . . . . . . . . . .. . . . . ........... 3 Manual Transmission Up-Shift Lamp . . . . . . ........... 3Brake Warning Lamp . . . . . . . . . . . . .. . . . . ........... 2 Oil Pressure Gauge . . . . . . . . . . . . .. . . . . . ........... 1Diagram Index . . . . . . . . . . . . . . . . . .. . . . . ........... 3 Seat Belt Indicator Warning Lamp . .. . . . . . ........... 2Engine Coolant Temperature Gauge . .. . . . . ........... 1 Security Lamp . . . . . . . . . . . . . . . . .. . . . . . ........... 3Fuel Gauge . . . . . . . . . . . . . . . . . . . .. . . . . ........... 1 Speedometer . . . . . . . . . . . . . . . . . .. . . . . . ........... 2High Beam Indicator Lamp . . . . . . . . .. . . . . ........... 2 Tachometer . . . . . . . . . . . . . . . . . . .. . . . . . ........... 2Instrument Cluster . . . . . . . . . . . . . . .. . . . . ........... 1 Turn Signal Indicator Lamps . . . . . .. . . . . . ........... 2Instrument Cluster Illumination Lamps . . . . . ........... 1 Voltmeter . . . . . . . . . . . . . . . . . . . .. . . . . . ........... 2Low Fuel Warning Lamp . . . . . . . . . .. . . . . ........... 1INSTRUMENT CLUSTER FUEL GAUGE The instrument cluster contains the gauges and The fuel level sensor is a variable resistor. Circuitwarning lamps. All gauges have magnetic move- G44 connects the fuel level sensor to the overheadments. console. Circuit K102 connects the fuel level sensor When the ignition switch is in the START or RUN to the fuel gauge in the instrument cluster. Circuitsposition, it connects circuit A1 from fuse 12 in the F87 from fuse 21 in the fuse block and circuit G5Power Distribution Center (PDC) to circuit A21. Cir- from fuse 22 in the fuse block supply voltage to thecuit A21 feeds circuit F87 through fuse 21 in the fuse fuel gauge. Circuit Z2 provides the ground path forblock. Circuit A21 also powers circuit G5 through the fuel level sensor.fuse 22 in the fuse block. Circuit A1 is HOT at all The fuel gauge has two coils. As current flowstimes. through the coils in the fuel gauge, it creates a mag- Circuits F87 and G5 supply power to the instru- netic field. One of the coils in the gauge receivesment cluster for the warning lamps and gauges. Cir- fixed current. The other coil is connected to the levelcuit Z1 provides ground for the warning lamps. sensor. The magnetic field controls the position of theCircuit Z2 provides ground for the gauges. fuel gauge pointer. As the position of the float arm on the fuel levelHELPFUL INFORMATION sensor changes, the resistor changes the current flow Circuit G5 also connects to the airbag diagnostic through second coil in the fuel gauge. A change inconnector. current flow alters the magnetic field in the fuel Circuit Z2 also provides ground for the overhead gauge, which changes the pointer position.console and fuel gauge level sensor. Circuits F87 and G5 also power the low fuel warn- ing lamp. Refer to Group 8E, Instrument Panel andINSTRUMENT CLUSTER ILLUMINATION LAMPS Gauges for additional information. Circuit E2 from the dimming module feeds the il-lumination lamps. Circuit Z1 provides ground for the LOW FUEL WARNING LAMPillumination lamps. Circuit K102 connects the fuel level sensor to the fuel gauge. The low fuel level module at the rear ofENGINE COOLANT TEMPERATURE GAUGE the gauge monitors resistance in circuit K102. The Circuit G20 connects the engine coolant tempera- low fuel level module powers the low fuel warningture gauge to the engine coolant temperature sensor. lamp when the resistance in circuit K102 reaches aThe sensor is a variable resistor and case grounded calibrated level. Circuit Z2 provides ground for theto the engine. low fuel warning lamp. Refer to Group 8E for addi- Circuits F87 from fuse 21 in the fuse block and cir- tional information.cuit G5 from fuse 22 in the fuse block supply voltageto the gauge. Circuit Z2 provides the ground path for OIL PRESSURE GAUGEthe gauge. The case grounded oil pressure sensor is a variable The gauge uses two coils. Current passing through resistor that connects to circuit G6. Circuit G6 con-the coils creates a magnetic field. Position of the nects to the oil pressure gauge.gauge needle is controlled by the amount of current Circuits F87 from fuse 21 in the fuse block and cir-passing through the coils to ground at the sensor. cuit G5 from fuse 22 in the fuse block supply voltage
  • 28. 8W - 40 - 2 8W-40 INSTRUMENT CLUSTER ZJto the oil pressure gauge. Circuit Z2 provides the For information regarding diagnostic trouble codeground path for the gauge. access using the MIL lamp, refer to Group 14, Fuel The oil pressure gauge has two coils. As current Systems.flows through the coils in the gauge, it creates amagnetic field. One of the coils in the gauge receives SEAT BELT INDICATOR WARNING LAMPfixed current. The other coil is connected to the oil The seat belt indicator warning lamp is activatedpressure sensor. The magnetic field controls the posi- by the chime module on circuit G13. Circuit G13 sup-tion of the gauge pointer. plies power to instrument cluster for the lamp. Cir- As oil pressure changes, the sensor alters the cur- cuit Z1 provides ground for the lamp.rent flow through second coil in the fuel gauge. A The chime/buzzer module powers circuit G11 afterchange in current flow alters the magnetic field in it receives an input on circuit G10 indicating the seatthe fuel gauge, which changes the pointer position. belt switch is open.VOLTMETER HIGH BEAM INDICATOR LAMP Circuit F87 from fuse 21 in the fuse block and cir- Circuit G34 supplies power to the high beam indi-cuit G5 from fuse 22 in the fuse block supply voltage cator lamp in the instrument cluster. On vehicles notto the voltmeter. Circuits F87 and G5 are HOT when equipped with Daytime Running Lamps (DRL), cir-the ignition switch is in the START or RUN position. cuit L3 from the dimmer switch powers circuit G34.Circuit Z2 provides ground for the voltmeter. On vehicles equipped with DRL, the DRL/Dimming module powers circuit G34. Circuit Z1 providesTACHOMETER ground for the indicator lamp. The tachometer module in the instrument clusteroperates the tachometer. The Powertrain Control TURN SIGNAL INDICATOR LAMPSModule (PCM) supplies the signal for the tachometer Circuits L64 and L65 power from the turns signalon circuit G21. Circuit G21 connects to cavity 43 of switch circuitry in the multi-function switch supplythe PCM. power for the turn signal indicator lamps. Circuit Circuit F87 from fuse 21 in the fuse block and cir- L64 powers the left indicator lamp. Circuit L65 pow-cuit G5 from fuse 22 in the fuse block supply voltage ers the right indicator lamp. Circuit Z1 providesto the tachometer module. Circuits F87 and G5 are ground for the lamps.HOT when the ignition switch is in the START orRUN position. Circuit Z2 provides ground for the ta- ABS WARNING LAMPchometer and module. Circuits F87 from fuse 21 in the fuse block and cir- Circuit G21 also connects to the transmission con- cuit G5 from fuse 22 in the fuse block supply voltagetrol module (TCM). to the ABS warning lamp. Circuits F87 and G5 are HOT when the ignition switch is in the START orSPEEDOMETER RUN position. The speedometer receives a signal from the vehicle Ground for the ABS warning lamp is provided byspeed sensor on circuit G7. Circuit G7 also connects either the ABS control module or by the ABS powerto the Powertrain Control Module (PCM) at cavity relay when the relay is not energized. The ABS con-47. Circuits F87 from fuse 21 in the fuse block and cir- trol module illuminates the lamp by providingcuit G5 from fuse 22 in the fuse block supply voltage ground on circuit 205.to the speedometer. Circuits F87 and G5 are HOT Circuit 205 connects to circuit 235 through a diode.when the ignition switch is in the START or RUN po- When the ABS power relay is not energized, it con-sition. Circuit Z2 provides ground for the speedome- nects circuit 235 to circuit Z1. The ground path forter. the warning lamp is through the diode to circuit 235, through the ABS power relay to ground on circuit Z1.MALFUNCTION INDICATOR LAMP (MIL) The diode between circuit 205 and 235 prevents The PCM provides ground for the instrument clus- voltage from flowing to the ABS control module whenter malfunction indicator lamp on circuit G3. Circuit the ABS power relay switches to supply power on cir-G3 connects to cavity 32 of the PCM. The MIL dis- cuit 235.plays the message CHECK ENGINE when illumi-nated. BRAKE WARNING LAMP Circuits F87 from fuse 21 in the fuse block and cir- Circuits F87 from fuse 21 in the fuse block and cir-cuit G5 from fuse 22 in the fuse block supply voltage cuit G5 from fuse 22 in the fuse block supply voltageto the MIL. Circuits F87 and G5 are HOT when the to the ABS warning lamp. Circuits F87 and G5 areignition switch is in the START or RUN position.
  • 29. ZJ 8W-40 INSTRUMENT CLUSTER 8W - 40 - 3HOT when the ignition switch is in the START or DIAGRAM INDEXRUN position. Circuit G9 provides ground for thebrake warning lamp. Component Page On vehicle not equipped with Daytime Running ABS Control Module . . . . . . . . . . . . . . . . . . . . . .8W-40-5Lamps (DRL), ground for the park brake lamp is ABS Diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-5supplied either through the case grounded park ABS System Relay . . . . . . . . . . . . . . . . . . . . . . . .8W-40-5brake switch or brake warning switch on circuit G9. ABS Warning Lamp . . . . . . . . . . . . . . . . . . . . . . .8W-40-5 On vehicles equipped with DRL, the park brake Airbag Control Module . . . . . . . . . . . . . . . . . . . . .8W-40-4switch connects to the DRL module on circuit G11. Airbag Warning Lamp . . . . . . . . . . . . . . . . . . . . . .8W-40-4Circuit G9 connects to the DRL module through the Brake Warning Lamp . . . . . . . . . . . . . . . . . . . .8W-40-6, 7brake warning switch. If the park brake switch Brake Warning Switch . . . . . . . . . . . . . . . . . . . . .8W-40-6closes, the DRL module provides ground for brake Chime Module . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-9warning lamp on circuit G9 through the brake warn- Dimming/DRL Module . . . . . . . . . . . . . . . . . . .8W-40-9, 16ing switch. The case grounded brake warning switch Engine Coolant Temperature Gauge . . . . . . . . . . . .8W-40-12can also connect circuit G9 to ground. Engine Coolant Temperature Sending Unit . . . . . . . .8W-40-12 For all vehicles, circuit G9 also connects to the ig- Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-14nition switch. When the case grounded ignition Fuel Pump Module . . . . . . . . . . . . . . . . . . . . . . .8W-40-14switch is in the START position, it provides ground Fuse 12 (PDC) . . . . . . . . . . . . .8W-40-4 thru 7, 11 thru 15for the lamp. Fuse 14 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-40-8 Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-8MANUAL TRANSMISSION UP-SHIFT LAMP Fuse 21 (Fuse Block) . . . . . . . . .8W-40-4 thru 7, 11 thru 15 Circuits F87 from fuse 21 in the fuse block and cir- Fuse 22 (Fuse Block) . . . . . . . . .8W-40-4 thru 7, 11 thru 15cuit G5 from fuse 22 in the fuse block supply voltage General Illumination Lamps . . . . . . . . . . . . . . . . .8W-40-16to the up-shift lamp. Circuits F87 and G5 are HOT High Beam Indicator Lamp . . . . . . . . . . . . . . . . . .8W-40-9when the ignition switch is in the START or RUN po- Ignition Switch . . . . . . . . . . . . .8W-40-4 thru 7, 11 thru 15sition. Low Fuel Warning Lamp . . . . . . . . . . . . . . . . . . .8W-40-14 The Powertrain Control Module (PCM) provides Malfunction Indicator Lamp . . . . . . . . . . . . . . . . . .8W-40-4ground for the up-shift lamp on circuit K54. Circuit Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . . .8W-40-11K54 connects to cavity 54 of the PCM. Oil Pressure Sending Unit . . . . . . . . . . . . . . . . . .8W-40-11 Park Brake Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-40-6AIRBAG WARNING LAMP Powertrain Control Module . . . . . . . . . . . . . . . .8W-40-4, 15 Circuits F87 from fuse 21 in the fuse block and cir- Seat Belt Switch . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-9cuit G5 from fuse 22 in the fuse block supply voltage Seat Belt Warning Lamp . . . . . . . . . . . . . . . . . . . .8W-40-9 Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-13to the airbag warning lamp. Circuits F87 and G5 are Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-15HOT when the ignition switch is in the START or Turn Signal Indicator Lamps . . . . . . . . . . . . . . . . .8W-40-10RUN position. Up-Shift Lamp . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-4 The Airbag Control Module (ACM) provides ground Vehicle Theft Alarm (VTA) Module . . . . . . . . . . . . . .8W-40-8for the up-shift lamp on circuit R41. Circuit R41 con- Vehicle Speed Sensor . . . . . . . . . . . . . . . . . . . . .8W-40-13nects to cavity 3 of the ACM. Vehicle Theft Alarm Security Lamp . . . . . . . . . . . . .8W-40-8 Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40-12SECURITY LAMP Circuit F70 from fuse 14 in the fuse block suppliespower for the security lamp. Circuit A7 from fuse 14in the PDC supplies power to the fuse block for cir-cuit F70. Circuit G69 from the Vehicle Theft Alarm (VTA)module supplies ground for the lamp after the VTAsystem has been properly armed. Refer to Group 8Q,Vehicle Theft Alarm.
  • 30. ZJ 8W-41 HORNS/CIGAR LIGHTER 8W - 41 - 1 HORNS/CIGAR LIGHTERHORN CIGAR LIGHTER The horn system is powered by a 20-amp fuse lo- The cigar lighter is powered by a 15 amp fuse lo-cated in cavity 13 of the fuse block. The fuse is HOT cated in cavity 11 of the fuse block. This fuse is HOTat all times on circuit F62. This circuit supplies volt- in the ACCESSORY and RUN positions only. Powerage to the coil and to the contact side of the horn re- for the fuse is supplied on circuit A31 from the igni-lay. tion switch. Power for the fuse is supplied on circuit A7 which When the operator depresses the lighter, the con-originates at fuse 14 in the Power Distribution Cen- tacts inside of the lighter element close, and voltageter (PDC). from circuit F30 flows through the heating element When the operator presses the horn switch, a to ground. Ground for the lighter is provided on theground path is completed on the coil side of the horn Z1 circuit.relay through the switch, on circuit X4. The horn re- HELPFUL INFORMATIONlay, located in the relay center, then closes the relay • Check the 15 amp fuse located in cavity 11 of thecontacts. Voltage is passed through the closed relay fuse blockcontacts on circuit X2 to the horns. Grounding for the • Check the cigar lighter elementhorns is on the Z1 circuit. On vehicles equipped with Vehicle Theft Alarm DIAGRAM INDEX(VTA), the X4 circuit is spliced to the Vehicle TheftAlarm (VTA) module. For operation of the VTA sys- Component Pagetem, refer to section 8W-39. Cigar Lighter . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41-2 Fuse 11 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-41-2HELPFUL INFORMATION Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41-2• Check the 20 amp fuse in cavity 13 of the fuse Fuse 13 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-41-2block Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41-2• Check fuse 14 in the PDC Horns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41-2• Press the horn switch and listen for the horn relay Horn Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41-2to click. A clicking relay indicates voltage is present Horn Switches . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41-2up to the switch
  • 31. ZJ 8W-42 AIR CONDITIONING/HEATER 8W - 42 - 1 1995 Grand Cherokee Publication No. 81-370-5147 TSB 26-08-95 October, 1995 AIR CONDITIONING/HEATER CONTENTS page pageAUTOMATIC TEMPERATURE CONTROL ........... 3 MANUAL A/C-HEATER . . . . . . . . . . . . . ........... 1GENERAL INFORMATION Temperature Control (ATC). When referring to the This section of the wiring diagrams is divided into circuit descriptions or wiring diagrams, ensure thattwo sub-sections; Manual A/C-Heater, and Automatic you use the correct sub-section. MANUAL A/C-HEATER INDEX page pageAir Conditioning Operation . . . . . . . . . . . . . . ........... 1 Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2Blend Air Door Motor . . . . . . . . . . . . . . . . . . ........... 2 General Information . . . . . . . . . . . . . . . . . . . ........... 1Blower Motor . . . . . . . . . . . . . . . . . . . . . . . . ........... 1GENERAL INFORMATION blower motor resistor block to the switch. The switch Several fuses supply power for the manual air con- connects to circuit C1.ditioning/heater system. When the ignition switch is The blower motor resistor block consists of threein the RUN position, it connects circuit A2 from fuse resistors connected in series. Depending on blower13 in the Power Distribution Center (PDC) to circuit motor switch position, the ground path on circuit C7A22. Circuit A22 powers circuit F71 through fuse 17 from the blower motor passes through one or morein the fuse block. Circuit F71 connects to the A/C resistors to circuit C1.control switches and the blend air door motor. When the blower motor switch is in the LOW posi- When the ignition switch is in the START or RUN tion, the ground path passes through all three resis-position, it connects circuit A1 to circuit A21. Circuit tors in the blower motor resistor block to circuit C4.A21 powers circuit F83 through fuse 5 in the PDC. The blower motor switch connects circuit C4 to cir-Circuit F83 powers the coil side of the A/C compressor cuits C1 and Z1.clutch relay and the A/C low pressure switch. In the MEDIUM 1 position, the ground path passes Circuit E2 from the dimming module powers the through two resistors in the resistor block to circuitillumination lamps in the A/C heater control switch. C5. The blower motor switch connects circuit C5 to circuits C1 and Z1.BLOWER MOTOR In the MEDIUM 2 position, the ground path passes The blower motor switch has four positions; LOW, through one resistor in the resistor block to circuitMEDIUM 1, MEDIUM 2, AND HIGH. Circuit A19 C6. The blower motor switch connects circuit C6 tofrom fuse 11 in the PDC supplies power to the blowermotor. Ground for the blower motor is supplied on circuits C1 and Z1.circuit C7 through the blower motor resistor block tothe blower motor switch, through an internal relay in AIR CONDITIONING OPERATIONthe A/C-Heater Control head. When the internal relay When the A/C-heater control switch is moved to anenergizes, it connects the blower motor switch to cir- A/C position or the defrost position, the Powertraincuit C1. Circuit C1 connects to ground circuit Z1. Control Module (PCM) receives the A/C select signal In the HIGH position, the blower motor switch con- on circuit C90. Circuit C90 connects to cavity 28 ofnects circuit C7 from the blower motor directly to the PCM.ground on circuits C1 and Z1. In the LOW or MEDI--UM positions, the ground path passes through the
  • 32. 8W - 42 - 2 8W-42 MANUAL A/C-HEATER ZJ 1995 Grand Cherokee Publication No. 81-370-5147 TSB 26-08-95 October, 1995 If the A/C low pressure and high pressure switches BLEND AIR DOOR MOTORare closed, the PCM receives the A/C request signal The A/C-Heater control head contains a blend dooron circuit C21. The A/C low pressure and high pres- position sensor. The sensor is a variable resistor thatsure switches are wired in series. Circuit F83 from provides the blend door position input to the blendfuse 5 in the Power Distribution Center (PDC) sup- door motor actuator on circuit C36.plies battery voltage to the low pressure switch. Cir- Circuit F71 from fuse 17 in the fuse block powerscuit C3 from the low pressure switch connects to the the actuator when the ignition switch is in the RUNhigh pressure switch. Circuit C21 from the high pres- position. Circuit C34 splices to connect the blend doorsure switch connects to cavity 27 of the PCM and to motor to ground circuit Z1.the contact side of the A/C compressor clutch relay. After receiving the A/C request signal, the PCM DIAGRAM INDEXsupplies ground for the coil side of A/C compressorclutch relay on circuit C13. Circuit C13 connects tocavity 34 of the PCM. Circuit F83 supplies battery Component Pagevoltage to the coil side of the relay. A/C Compressor . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-7 When the PCM grounds the A/C compressor clutch A/C Compressor Clutch Relay . . . . . . . . . . . . . . . . .8W-42-7relay, the contacts close and connect circuits C21 and A/C-Heater Control Switches . . . . . . . . . . . . . . . . . .8W-42-6C2. Circuit C2 supplies power to the case grounded A/C High Pressure Switch . . . . . . . . . . . . . . . . . . .8W-42-7A/C compressor clutch. A/C Low Pressure Switch . . . . . . . . . . . . . . . . . . . .8W-42-7 The A/C compressor clutch has a built-in diode. The Blend Air Door Motor . . . . . . . . . . . . . . . . . . . . . .8W-42-6diode controls the induced voltage that results from Blower Motor . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-5the magnetic field collapsing when the clutch disen- Blower Motor Resistor Block . . . . . . . . . . . . . . . . . .8W-42-6 Blower Motor Switch . . . . . . . . . . . . . . . . . . . . . .8W-42-6gages. The diode provides a current path to protect Fuse 5 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-7other components and systems. Fuse 11 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-5HELPFUL INFORMATION Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-7• Circuit F83 is HOT when the ignition switch is in Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-5the RUN or START position. Fuse 17 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-42-5 Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-6, 7 Circuit F83 is double crimped at the coil side of the Powertrain Control Module . . . . . . . . . . . . . . . . .8W-42-6, 7A/C compressor clutch relay. The branch of circuitF83 from the relay connects to the A/C low pressureswitch.
  • 33. ZJ 8W-42 AUTOMATIC TEMPERATURE CONTROL 8W - 42 - 3 AUTOMATIC TEMPERATURE CONTROL INDEX page pageAir Conditioning Operation . . . . . . . . . . . . . . ........... 3 Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 4Automatic Temperature Control (ATC) Module .......... 3 General Information . . . . . . . . . . . . . . . . . . . ........... 3Blend Door Motor . . . . . . . . . . . . . . . . . . . . ........... 4 Mode Door Motor . . . . . . . . . . . . . . . . . . . . ........... 4Blower Motor . . . . . . . . . . . . . . . . . . . . . . . . ........... 4 Recirculation Door Motor . . . . . . . . . . . . . . . ........... 4GENERAL INFORMATION AMBIENT TEMPERATURE SENSOR Several fuses supply power for the Automatic Tem- The ambient temperature sensor is a variable re-perature Control (ATC) system. When the ignition sistor. Circuit C8 from the ATC module connects toswitch is in the RUN position, it connects circuit A2 the ambient temperature sensor. Circuit D41 pro-from fuse 13 in the Power Distribution Center (PDC) vides ground for the sensor. Circuit D41 connects toto circuit A22. Circuit A22 powers circuit F71 the ATC module.through fuse 17 in the fuse block. Circuit F71 con-nects to the ATC module and the recirculation door IN-CAR TEMPERATURE SENSORmotor. The in-car temperature sensor is a variable resis- tor. Circuit C47 from the ATC module connects to the When the ignition switch is in the START or RUN in-car temperature sensor. Circuit D41 providesposition, it connects circuit A1 from PDC fuse 12 to ground for the sensor. Circuit D41 connects to thecircuit A21. Circuit A21 powers circuit F83 through ATC module.fuse 5 in the PDC. Circuit F83 powers the coil side ofthe A/C compressor clutch relay and the A/C low SOLAR SENSORpressure switch. The solar sensor is a variable resistor. Circuit C10 Circuit A19 from fuse 11 in the PDC connects to from the ATC module connects to the solar sensor.the blower power module and to the coil and contact Circuit D41 provides ground for the sensor. Circuitside of the high speed blower motor relay. D41 connects to the ATC module. Circuit A4 from fuse 1 in the PDC powers circuitF60 through fuse 8 in the fuse block. Circuit F60 con- AIR CONDITIONING OPERATIONnects to the ATC module. When the A/C-heater control switch is moved to an A/C position or the defrost position, the AutomaticAUTOMATIC TEMPERATURE CONTROL (ATC) Temperature Control (ATC) module sends the A/C se-MODULE lect signal to the Powertrain Control Module (PCM) Circuits F71 supplies battery voltage to the Auto- on circuit C90. Circuit C90 connects to cavity 28 ofmatic Temperature Control (ATC) module when the the PCM.ignition switch is in the RUN position. Circuit F60 If the A/C low pressure and high pressure switches are closed, the PCM receives the A/C request signalfrom fuse 8 in the fuse block connects to the ATC on circuit C21. The A/C low pressure and high pres-module. Circuit F60 is HOT at all times. Refer to sure switches are wired in series. Circuit F83 fromGeneral Information. Circuit Z1 provides ground for fuse 5 in the Power Distribution Center (PDC) sup-the ATC module. plies battery voltage to low pressure switch. Circuit Circuit E2 from the dimming module connects to C3 from the low pressure switch connects to highthe ATC module. Circuit L90 from the headlamp pressure switch. Circuit C21 from the high pressureswitch supplies power for illumination to the ATC switch connects to cavity 27 of the PCM and to themodule when the headlamp switch is in the PARK or contact side of the A/C compressor clutch relay.ON positions. After receiving the A/C request signal, the PCM Circuit G25 from the US/Metric switch in the over- supplies ground for the coil side of A/C compressorhead console connects to the ATC module. Circuit clutch relay on circuit C13. Circuit C13 connects toG25 also connects to the Vehicle Information Center cavity 34 of the PCM. Circuit F83 supplies battery(VIC). voltage to the coil side of the relay. Circuits D1 and D2 for the CCD Bus connect to the When the PCM grounds the A/C compressor clutchATC module. Circuits D1 and D2 also splice to the relay, the contacts close and connect circuits C21 andPowertrain Control Module (PCM) data link connec- C2. Circuit C2 supplies power to the case groundedtor. A/C compressor clutch.
  • 34. 8W - 42 - 4 8W-42 AUTOMATIC TEMPERATURE CONTROL ZJ The A/C compressor clutch has a built-in diode. The from fuse 11 in the Power Distribution Center (PDC)diode controls the induced voltage that results from supplies battery voltage to the blower motor powerthe magnetic field collapsing when the clutch disen- module.gages. The diode provides a current path to protect The voltage level fed to the blower motor dependsother components and systems. on the blower speed selected by the operator. Slower speed selections provide lower voltage to the motor.HELPFUL INFORMATION The blower motor power module feeds the blower mo-• Circuit F83 is HOT when the ignition switch is in tor on circuit C42. Circuit Z4 provides ground for thethe RUN or START position. blower motor and the blower motor power module. Circuit F83 is double crimped at the coil side of the Circuit C43 from the power module connects to theA/C compressor clutch relay. The branch of circuit ATC module. The ATC module controls feedback onF83 from the relay connects to the A/C low pressure circuit C43.switch. HIGH SPEED BLOWER MOTOR RELAYRECIRCULATION DOOR MOTOR Circuit A19 from fuse 11 in the Power Distribution Circuit F71 from fuse 17 in the Power Distribution Center supplies battery voltage to the coil and con-Center (PDC) supplies power for the recirculation tacts sides of the high speed blower motor relay. Thedoor motor. Circuit F71 also connects to the Auto- ATC module provides ground for the coil side of thematic Temperature Control (ATC) module. Circuit relay on circuit C41.F71 is HOT when the ignition switch is in the RUN When the ATC module grounds the high speedposition. blower motor relay, the relay contacts close and con- Circuits C32 and C33 from the ATC module con- nect circuit A19 to circuit C42. Circuit C42 connectsnect to the recirculation door motor. Circuits C32 and to the blower motor and the ATC module. Circuit Z4C33 provide ground for the motor. provides ground for the blower motor.MODE DOOR MOTOR DIAGRAM INDEX Circuit C40 from the Automatic Temperature Con-trol (ATC) module supplies 5 volts to the position Component Pageswitch in the mode door motor. The ATC module re- A/C Compressor . . . . . . . . . . . . . . . . . . . . . . . .8W-42-11ceives the sensor signal from the mode door motor on A/C Compressor Clutch Relay . . . . . . . . . . . . . . . .8W-42-11circuit C39. Circuit D41 provides ground for the A/C High Pressure Switch . . . . . . . . . . . . . . . . . .8W-42-11mode door position sensor. Circuit D41 connects to A/C Low Pressure Switch . . . . . . . . . . . . . . . . . .8W-42-11the ATC module. Ambient Temperature Sensor . . . . . . . . . . . . . . . .8W-42-12 The ATC module operates the mode door motor on Automatic Temperature Controlcircuits C37 and C38. (ATC) Module . . . . . . . . . . . . . . . . . . . .8W-42-8 thru 15 Blend Air Door Motor . . . . . . . . . . . . . . . . . . . . .8W-42-14BLEND DOOR MOTOR Blower Motor . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-9 Circuit C40 from the Automatic Temperature Con- Blower Motor Power Module . . . . . . . . . . . . . . . . .8W-42-9trol (ATC) module supplies 5 volts to the position Dimming Module . . . . . . . . . . . . . . . . . . . . . . . .8W-42-15switch in the blend door motor. The ATC module re- Dimming/DRL Module . . . . . . . . . . . . . . . . . . . . .8W-42-15 Fuse 1 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-8ceives the sensor signal from the blend door motor on Fuse 5 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-11circuit C39. Circuit D41 provides ground for the Fuse 8 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-42-8mode door position sensor. Circuit D41 connects to Fuse 11 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-9the ATC module. Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-11 The ATC module operates the mode door motor on Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-42-8, 13circuits C35 and C34. Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-8 Fuse 17 (Fuse Block) . . . . . . . . . . . . . . . . . . .8W-42-8, 13BLOWER MOTOR Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-42-15 When the operator selects blower motor HIGH High Speed Blower Motor Relay . . . . . . . . . . . . . . .8W-42-9speed operation, the Automatic Temperature Control Ignition Switch . . . . . . . . . . . . . . . . . . . . .8W-42-8, 11, 13(ATC) module grounds high speed blower motor relay. In-Car Temperature Sensor . . . . . . . . . . . . . . . . . .8W-42-12For any speed other than HIGH, the blower power Mode Door Motor . . . . . . . . . . . . . . . . . . . . . . .8W-42-14module supplies battery voltage for the blower motor. Overhead Console . . . . . . . . . . . . . . . . . . . . . . .8W-42-15 Powertrain Control Module . . . . . . . . . . . . . . . . . .8W-42-10BLOWER MOTOR POWER MODULE Recirculation Door Motor . . . . . . . . . . . . . . . . . . .8W-42-13 When the operator selects any blower motor speed Solar Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42-12other than HIGH, the blower motor power modulesupplies voltage for the blower motor. Circuit A19
  • 35. 1995 Grand CherokeePublication No. 81-370-5147TSB 26-08-95 October, 1995
  • 36. 1995 Grand CherokeePublication No. 81-370-5147TSB 26-08-95 October, 1995
  • 37. ZJ 8W-43 AIRBAG SYSTEM 8W - 43 - 1 AIRBAG SYSTEMAIRBAG CONTROL MODULE (ACM) through the clock spring connector. Circuit R43 from Three different circuits and fuses supply battery cavity 2 of the ACM 4-way connector connects to thevoltage to the Airbag Control Module (ACM), they squib. Circuit R45 from cavity 1 of the ACM 4-wayare A14, F20 and G5. The A14 circuit is HOT at all connector connects to the squib.times and protected by two fuses located in cavities 3and 15 of the Power Distribution Center (PDC). AIRBAG WARNING LAMP The F20 and G5 circuits are connected to separate Illumination of the Airbag warning lamp is con-bus bars internal to the fuse block. Different circuits trolled by the Airbag Control Module (ACM). Whenfrom the PDC and the ignition switch supply battery the ACM detects a problem in the system it providesvoltage to the fuse block bus bars. a ground for the R41 circuit. This causes the AIR- The F20 circuit supplies battery voltage to the BAG lamp in the instrument cluster to illuminate.ACM only when the ignition switch is in the RUNposition. The G5 circuit powers the ACM when the DATA LINK CONNECTORignition switch is in either the START or RUN posi- The airbag system used in this vehicle uses its owntion. dedicated data link connector. This connector is lo- A bus bar internal to the ignition switch connects cated at the rear of the center console. Circuits D7,the A1 circuit from the Power Distribution Center D8, F63, and Z6 connect from the Airbag Control(PDC) to the A21 circuit when the switch is in either Module (ACM) to the data link connector.the START or RUN position. The A21 circuit suppliesbattery voltage to the fuse block bus bar that feeds HELPFUL INFORMATIONthe G5 circuit. A 40 amp fuse in the PDC protects the • Check for blown fuses in the circuits that connectA1 and A21 circuits. A 15 amp fuse in cavity 22 of to the ignition switch and in those that connect tothe fuse block protects the G5 circuit. the ACM When the ignition switch is in the RUN position, it • While the bus bars in the fuse block power theconnects the A2 circuit from the PDC to the A22 cir- ACM, they also feed additional components on sepa-cuit. The A22 circuit supplies battery voltage to the rate fuse-protected circuitsfuse block bus bar that feeds the F20 circuit. A 60amp fuse in cavity 13 of the PDC protects the A2 and • The ACM has an external dedicated ground.A22 circuits. A 15 amp fuse in cavity 18 of the fuseblock protects the F20 circuit. DIAGRAM INDEX The ACM has an external dedicated ground, circuitZ6. Component Page Airbag Control Module . . . . . . . . . . . . . . . . . . . . .8W-43-2AIRBAG IMPACT SENSORS Airbag Squib . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-43-3 Two airbag impact sensors provide input to the air- Airbag Warning Lamp . . . . . . . . . . . . . . . . . . . . . .8W-43-2bag control module (ACM). Each sensor has two cir- Data Link Connector . . . . . . . . . . . . . . . . . . . . . .8W-43-3cuits that connect to the ACM. Fuse 3 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-43-2 From the left impact sensor, Circuit R47 connects Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-43-2to the ACM at cavity 4 of the 10-way connector. Cir- Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-43-2cuit R49 connects to cavity 7 of the 10 way connector. Fuse 15 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-43-2 From the right impact sensor, Circuit R46 connects Fuse 18 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-43-2to the ACM at cavity 5 of the 10 way connector. Cir- Fuse 22 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-43-2cuit R48 connects to cavity 6 of the 10 way connector. Fuse 21 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-43-2 Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-43-2AIRBAG SQUIB (AIRBAG IGNITER) Impact Sensors . . . . . . . . . . . . . . . . . . . . . . . . . .8W-43-3 Two circuits, R43 and R45, connect the ACM to thedriver’s side Airbag squib (igniter) after passing
  • 38. ZJ 8W-44 INTERIOR LIGHTING 8W - 44 - 1 INTERIOR LIGHTING INDEX page pageChime/Buzzer Module . . . . . . . . . . . . . . . . . ........... 2 Interior Lamps . . . . . . . . .. . . . . . . . . . . . . . ........... 1Day/Night Mirror . . . . . . . . . . . . . . . . . . . . . ........... 2 Overhead Console Lamps . . . . . . . . . . . . . . ........... 2Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 3 Remote Keyless Entry . . .. . . . . . . . . . . . . . ........... 2Dimming Module . . . . . . . . . . . . . . . . . . . . . ........... 1 Underhood Lamp . . . . . . .. . . . . . . . . . . . . . ........... 2General Information . . . . . . . . . . . . . . . . . . . ........... 1 Vanity Lamps . . . . . . . . .. . . . . . . . . . . . . . ........... 2Glove Box Lamp . . . . . . . . . . . . . . . . . . . . . ........... 2GENERAL INFORMATION Circuit Z1 provides ground for all of the illumina- Circuit A4 from fuse 1 in the Power Distribution tion lamps except for the automatic temperature con-Center (PDC) powers circuit M1 through the Ignition trols lamp and A/C-Heater switch lamp. Circuit Z4Off Draw (IOD) fuse in cavity 5 of the fuse block. Cir- provides ground for the automatic temperature con-cuit M1 supplies power to the interior lamps. A stand trols lamp. The A/C-Heater switch lamp is casealone branch of circuit M1 connects directly to fuse 1 grounded.in the PDC and the underhood lamp. Additionally, the headlamp switch lamps also Circuit M1 also connects to the coil side of the illu- ground when the courtesy lamp switch is closed.minated entry relay. The Remote Keyless Entry When closed, the courtesy lamp switch connects the(RKE) module controls the illuminated entry relay. headlamp switch lamps to circuit M2. Circuit E2 from the dimming module suppliespower for the instrument panel illumination lamps. HELPFUL INFORMATION • On vehicles built for sale in Canada, the dimmingDIMMING MODULE module is part of the Daytime Running Lamps (DRL) Circuit 352 from fuse 24 in the fuse block powers module.the dimming module. Circuit L90 from the headlampswitch feeds circuit 352 through fuse 24 when the INTERIOR LAMPSheadlamp switch is in the PARK, LOW, or LOW/FOG Circuit A4 from fuse 1 in the Power Distributionposition. Circuit 366 from fuse 12 in the fuse block Center (PDC) powers circuit M1 through the Ignitionsupplies power to the headlamp switch for circuit Off Draw (IOD) fuse in cavity 5 of the fuse block. Cir-L90. Circuit A6 from fuse 10 in the Power Distribu- cuit M1 supplies power to the:tion Center powers circuit 366 through fuse 12. • Cargo lamp Circuit 52 from dimming switch connects to the • Dome/reading lampsdimming module. The dimming module determines • Key-in lampthe level of illumination selected from the input it re- • Left courtesy lampceives on circuit 52. • Left door courtesy lamp The dimming module powers the illumination • Overhead console lampslamps on circuit E2. Circuit E2 splices to supply • Right courtesy lamppower to the following illumination lamps: • Right door courtesy lamp• Ash receiver lamp Circuit M2 connects all of the above interior lamps• Cigar lighter lamp to circuit Z1 through either one of the door jamb• Headlamp switch lamps switches, liftgate switch, or liftgate glass ajar switch.• Radio lamp With the vehicle not moving, when either the liftgate,• Instrument cluster general illumination lamps liftgate glass or one of doors opens, these switches• A/C-Heater control switch lamp close connect circuits M2 and Z1. Circuit Z1 provides• Transmission range indicator lamp ground for the lamps.• Transfer case range indicator lamp If the vehicle is equipped with Remote Keyless En-• Heated rear window switch lamp try, the illuminated entry relay connects circuit M2• Overdrive switch lamp to ground on circuit M1.• Graphic display module illumination lamps Circuit Z1 also connects directly to the switches for• Automatic temperature controls lamp the dome/reading lamps or if equipped, overhead con-• Overhead console illumination lamp sole lamps.
  • 39. 8W - 44 - 2 8W-44 INTERIOR LIGHTING ZJGLOVE BOX LAMP UNDERHOOD LAMP Circuit M1 from the Ignition Off Draw (IOD) fuse A stand alone branch of circuit M1 connects di-in cavity 5 of the fuse block powers the glove box rectly to fuse 1 in the Power Distribution Centerlamp. A case grounded switch, in series after the (PDC) and the underhood lamp. A mercury switch, inlamp, closes when the glove box door is opened. The series after the lamp, connects the lamp to ground onswitch completes a path to ground on circuit Z1. circuit Z1. When the hood is raised, mercury inside the switch moves to a position where it connects cir-OVERHEAD CONSOLE LAMPS cuit M1 to ground circuit Z1, illuminating the lamp. Circuit A4 from fuse 1 in the Power DistributionCenter (PDC) powers circuit F60 through fuse 8 in DAY/NIGHT MIRRORthe fuse block. Circuit F60 supplies battery voltage to When the ignition switch is in the RUN position, itthe left and right lamps. connects circuit A2 from fuse 13 in the Power Distri- Circuit Z2 connects directly to the switches for the bution Center (PDC) to circuit A22. Circuit A22 pow-left and right lamps. When one of the switches close, ers circuit F83 through fuse 19 in the fuse block.circuit Z1 provides ground for that lamp. Circuit F83 feeds the day/night mirror. Circuit Z1 Also, circuit M2 connects to the left and right lamp provides ground for the day/night mirror.in the overhead console. Circuit M2 connects the When the back-up lamps switch closes, circuit L10lamps to ground on circuit Z1 through either the lift- provides a signal to the day/night mirror. The daygate switch, liftgate glass ajar switch, or one of the night mirror turns Off when the vehicle is in reverse.door jamb switches. With the vehicle not moving,when either the liftgate, liftgate glass or one of doors CHIME/BUZZER MODULEopens, these switches close connect circuits M2 and The chime module sounds an audible warning tone.Z1. Circuit Z1 provides ground for the lamps. The tone sounds for seat belt warning and when the key is in the ignition switch while the drivers door isREMOTE KEYLESS ENTRY open. The tone also sounds when the ignition key is When the operator activates the Remote Keyless in the ON position while the drivers side seat belt isEntry (RKE) system, the RKE module grounds the not buckled. Lastly, the tone sounds when the head-coil side of the illuminated entry relay. Circuit M1 lamps are ON when the ignition is OFF. Refer tofrom the Ignition Off Draw (IOD) fuse in cavity 5 of Group 8U for system operation.the fuse block powers the coil side of the relay. Cir- When the ignition switch is in the RUN position,cuit M1 is HOT at all times. circuit A2 from fuse 13 in the Power Distribution When the RKE module grounds the relay, contacts Center (PDC) connects to circuit A22. Circuit A22inside the relay connect circuits M2 and Z1 providing powers circuit F83 through fuse 19 in the fuse block.ground for the following lamps: Circuit F83 connects to the chime module.• Cargo lamp Circuit A4 in the PDC powers circuit F60 through• Dome/reading lamps fuse 8 in the fuse block. Circuit F60 supplies battery• Key-in lamp voltage to the chime module. Circuits A4 and F60 are• Left courtesy lamp HOT at all times. Circuit Z1 provides ground for the• Left door courtesy lamp chime module.• Overhead console lamps One branch of circuit G26 connects the chime mod-• Right courtesy lamp ule to the headlamp switch. Another branch of circuit• Right door courtesy lamp G26 connects the chime module to the ignition key-in switch. Circuit G16 connects the key in switch to theHELPFUL INFORMATION headlamp switch and left front door jamb switch.• The RKE module also operates the power door lock When the parking lamps or headlamps are ON, therelays. Refer to section 8W-61, Power Door Locks. headlamp switch connects circuit G26 from the chime module to circuit G16.VANITY LAMPS If the headlamps are ON and the drivers door Circuit A4 feeds circuit M1 through the Ignition Off opens, ground for the chime module is through theDraw (IOD) fuse in the cavity 5 of the fuse block. headlamp switch on circuit G26. From the headlampCircuit A4 originates at fuse 1 in the power distribu- switch the ground path continues on circuit G16tion center (PDC). Circuits A4 and M1 are HOT at through the drivers door jamb switch to ground onall times. circuit Z1. Circuit M1 supplies power to the vanity lamps. If the headlamps are OFF with the key in the ig-When the vanity lamps switch closes, it connects the nition while the drivers side door is open, ground forlamps to ground on circuit Z1. the chime module is through the key-in switch on cir-
  • 40. ZJ 8W-44 INTERIOR LIGHTING 8W - 44 - 3cuit G26. From the key-in, the ground path continues DIAGRAM INDEXon circuit G16 through the drivers door jamb switchto ground on circuit Z1. Component Page Circuit G13 from the chime module powers the seat A/C-Heater Control Switch . . . . . . . . . . . . . . . . . .8W-44-15belt warning lamp in the instrument cluster. Circuit Ash Receiver Lamp . . . . . . . . . . . . . . . . . . . . . .8W-44-14Z1 at the instrument cluster provides ground for the Automatic Temperature Control (ATC) Module . . . . .8W-44-16lamp. Cargo Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-6 Circuit G10 from the chime module connects to the Chime Module . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-11 Cigar Lighter Lamp . . . . . . . . . . . . . . . . . . . . . .8W-44-14seat belt switch. When the seat belt switch closes a Day/Night Mirror . . . . . . . . . . . . . . . . . . . . . . . .8W-44-10path to ground is completed on circuit Z1 and the Dimming/DRL Module . . . . . . . . . . . . .8W-44-13, 14, 15, 16tone sounds momentarily. Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-7 The chime module connects to the Vehicle Informa- Fuse 1 (PDC) . . . . . . . . . . . . . . . . . . . . .8W-44-4, 8, 9, 11tion Center (VIC) on circuit G81. Fuse 5 (Fuse Block) . . . . . . . . . . . . . . .8W-44-4, 5, 6, 7, 9 Fuse 8 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-44-11HELPFUL INFORMATION Fuse 10 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-13• Circuit F83 is double crimped at the chime module Fuse 12 (Fuse Block) . . . . . . . . . . . . . . . . . . . . .8W-44-13and branches to the dimming module. Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-44-10, 11• The chime module also controls the ground for the Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . .8W-44-4, 8, 9, 11power door lock relay on circuit P57. The chime mod- Fuse 19 (Fuse Block) . . . . . . . . . . . . . . . . . .8W-44-10, 11 Fuse 24 (Fuse Block) . . . . . . . . . . . . . . . . . . . . .8W-44-13ule prevents the doors from locking by not grounding Glove Box Lamp . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-4the coil side of the power door lock relay. Graphic Display Module . . . . . . . . . . . . . . . . . . . .8W-44-16 Headlamp Switch . . . . . . . . . . . . . . . . . . . . .8W-44-12, 13 Heated Rear Window Switch . . . . . . . . . . . . . . . .8W-44-16 Ignition Switch . . . . . . . . . . . . . . . . . . . . . . .8W-44-10, 11 Illuminated Entry Relay . . . . . . . . . . . . . . . . . . . . .8W-44-9 Illumination Lamps . . . . . . . . . . . . . . . . . . . . . . .8W-44-14 Key-In Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-5 Key-In Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-12 Left Front Door Jamb Switch . . . . . . . . . . . . . . . . .8W-44-5 Left and Right Courtesy Lamps . . . . . . . . . . . . . . .8W-44-5 Left Front Door Courtesy Lamp . . . . . . . . . . . . . . .8W-44-6 Left Rear Door Jamb Switch . . . . . . . . . . . . . . . . .8W-44-5 Liftgate Glass Ajar Switch . . . . . . . . . . . . . . . . . . .8W-44-6 Liftgate Door Switch . . . . . . . . . . . . . . . . . . . . . .8W-44-6 Overhead Console Lamps . . . . . . . . . . . . . . . . . . .8W-44-8 Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-14 Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-7 Remote Keyless Entry (RKE) Module . . . . . . . . . . . .8W-44-9 Right Front Door Jamb Switch . . . . . . . . . . . . . . . .8W-44-6 Right Front Door Courtesy Lamp . . . . . . . . . . . . . .8W-44-6 Right Rear Door Jamb Switch . . . . . . . . . . . . . . . .8W-44-6 Seat Belt Lamp . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-12 Seat Belt Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-44-12 Transfer Case Range Lamp . . . . . . . . . . . . . . . . .8W-44-15 Transmission Range Indicator Lamp . . . . . . . . . . . .8W-44-15 Underhood Lamp . . . . . . . . . . . . . . . . . . . . . . . . .8W-44-4 Vanity Mirror Lamps . . . . . . . . . . . . . . . . . . . . . .8W-44-7 Vehicle Information Center (VIC) . . . . . . . . . . .8W-44-12, 16
  • 41. 1995 Grand CherokeePublication No. 81-370-5147TSB 26-01-96 January, 1996
  • 42. ZJ 8W-46 MESSAGE CENTER 8W - 46 - 1 MESSAGE CENTER CONTENTS page pageGRAPHIC DISPLAY MODULE . . . . . . . . ........... 3 VEHICLE INFORMATION CENTER . . . . ........... 1GENERAL INFORMATION and Graphic Display. When referring to the circuit This section of the wiring diagrams is divided into descriptions or wiring diagrams, ensure that you usetwo sub-sections; Vehicle Information Center (VIC), the correct sub-section. VEHICLE INFORMATION CENTER INDEX page pageDiagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2 Low Engine Coolant Warning ... . . . . . . . . . ........... 2Door Ajar Display . . . . . . . . . . . . . . . . . . . . ........... 2 Low Washer Fluid Warning . ... . . . . . . . . . ........... 1General Information . . . . . . . . . . . . . . . . . . . ........... 1 Transfer Case Range Display .. . . . . . . . . . ........... 2Lamp Outage . . . . . . . . . . . . . . . . . . . . . . . ........... 1 US/Metric Display . . . . . . . . ... . . . . . . . . . ........... 1Liftgate Ajar Display . . . . . . . . . . . . . . . . . . . ........... 2GENERAL INFORMATION Circuit G81 connects the VIC to the tone circuitry Several fuses supply power to the Vehicle Informa- in the chime module.tion Center (VIC). Circuit A4 from fuse 1 in the Circuit Z1 provides ground for the VIC. Circuit Z1Power Distribution Center (PDC) feeds circuit F60 connects to three cavities of the VIC.through fuse 8 in the fuse block. Circuit F60 suppliesbattery voltage to the VIC. Circuits A4 and F60 are US/METRIC DISPLAY Circuit G25 connects the Vehicle Information Cen-HOT at all times. ter (VIC) to the US/Metric switch in the overhead When the ignition switch is in the RUN position it console. The switch allows the operator to select theconnects circuit A2 from fuse 13 in the PDC to circuit display to appear in either metric or english units ofA22. Circuit A22 feeds circuit F83 through fuse 19 in measure.the fuse block. Circuit F83 supplies voltage to theVIC. HELPFUL INFORMATION Circuit A6 from fuse 10 in the PDC powers circuit • The vehicle is equipped with a two-way connector366 through fuse 12 in the fuse block. Circuit 366 located behind the VIC. The connector grounds twoconnects to the headlamp switch. When the head- cavities of the VIC and causes the VIC to displaylamp switch is in the PARK, LOW or LOW/FOG po- only metric units of measure.sition, it connects circuit 366 to circuit L90. Circuit • Circuit G25 also connects to the Automatic Tem-L90 connects to the VIC. When the VIC senses volt- perature Control (ATC) module (if equipped).age on circuit L90, it monitors circuit E2 from the in-terior lamps dimming switch to determine the LAMP OUTAGEselected display intensity. Circuit G46 connects from the Lamp Outage Mod- Circuit L5 from the flasher relay connects to the ule (LOM) to the Vehicle Information Center (VIC).VIC. Circuit L5 powers the turn signal switch cir- Circuit G46 supplies the rear lamp out signal to thecuitry in the multi-function switch. VIC. The VIC receives the vehicle speed sensor signal oncircuit G7. The input tells the VIC when the vehicle LOW WASHER FLUID WARNING When the low washer fluid switch closes, it con-is moving. nects circuit G29 from the Vehicle Information Cen-
  • 43. 8W - 46 - 2 8W-46 VEHICLE INFORMATION CENTER ZJter VIC to ground on circuit Z1. The VIC displays the ground on circuit Z1. In addition to illuminating theLow Washer Fluid warning when the switch closes. 4WD display, the VIC also illuminates the PART TIME display.LOW ENGINE COOLANT WARNING When the transfer case switch is in Full Time 4WD When the coolant level switch closes, it connects position, it connects circuit 106 from the VIC tocircuit G18 from the Vehicle Information Center VIC ground on circuit Z1. In addition to illuminating theto ground on circuit Z1. The VIC displays the Low 4WD display, the VIC also illuminates the FULLCoolant Level warning when the switch closes. TIME display.DOOR AJAR DISPLAY DIAGRAM INDEX Each door has an ajar switch that connects to theVehicle Information Center (VIC). When a door Component Pageopens, the case grounded ajar switch closes and con-nects the VIC to ground. In response, the VIC dis- Automatic Temperature Control (ATC) Module . . . . . .8W-46-7 Chime Module . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-8plays which door is open. Door Ajar Switches . . . . . . . . . . . . . . . . . . . . . . .8W-46-9 Engine Coolant Level Sensor . . . . . . . . . . . . . . . . .8W-46-8LIFTGATE AJAR DISPLAY Fuse 1 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-6 The liftgate ajar switch and liftgate glass ajar Fuse 8 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-46-6switch connect to the Vehicle Information Center Fuse 10 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4(VIC). When either the liftgate or liftgate glass Fuse 12 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-46-4opens, the ajar switch closes and connects the VIC to Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4ground on circuit Z1. In response, the VIC displays Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-6that the lift gate is open. Fuse 19 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-46-4 Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4TRANSFER CASE RANGE DISPLAY Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4 When the transfer case is in either 4WD Low, Part Lamp Outage Module . . . . . . . . . . . . . . . . . . . . . .8W-46-7Time 4WD, or Full Time it connects circuit G28 from Liftgate Ajar Switch . . . . . . . . . . . . . . . . . . . . . . .8W-46-9the Vehicle Information Center (VIC) to ground on Liftglass Ajar Switch . . . . . . . . . . . . . . . . . . . . . .8W-46-9circuit Z1. In response, the VIC illuminates the 4WD Overhead Console . . . . . . . . . . . . . . . . . . . . . . . .8W-46-7display. Transfer Case . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-5 When the transfer case switch is in 4WD Low, it Vehicle Information Center (VIC) . . . . . . . . . .8W-46-4 thru 9connects circuit G28 from the VIC to ground on cir- Vehicle Speed Sensor . . . . . . . . . . . . . . . . . . . . . .8W-46-8cuit Z1. In addition to illuminating the 4WD display, Washer Fluid Level Sensor . . . . . . . . . . . . . . . . . .8W-46-8the VIC also illuminates the LOW display. When the transfer case switch is in Part Time4WD position, it connects circuit 107 from the VIC to
  • 44. ZJ 8W-46 GRAPHIC DISPLAY MODULE 8W - 46 - 3 GRAPHIC DISPLAY MODULEGENERAL INFORMATION cuit Z1. In addition to illuminating the 4WD display, Several fuses supply power to the Graphic Display the GDM also illuminates the LOW display.Module (GDM). When the ignition switch is in the When the transfer case switch is in Part TimeRUN position it connects circuit A2 from fuse 13 in 4WD position, it connects circuit 107 from the GDMthe PDC to circuit A22. Circuit A22 feeds circuit F83 to ground on circuit Z1. In addition to illuminatingthrough fuse 19 in the fuse block. Circuit F83 sup- the 4WD display, the GDM also illuminates theplies voltage to the GDM. PART TIME display. Circuit A6 from fuse 10 in the PDC powers circuit When the transfer case switch is in Full Time 4WD366 through fuse 12 in the fuse block. Circuit 366 position, it connects circuit 106 from the GDM toconnects to the headlamp switch. When the head- ground on circuit Z1. In addition to illuminating thelamp switch is in the PARK, LOW or LOW/FOG po- 4WD display, the GDM also illuminates the FULLsition, it connects circuit 366 to circuit L90. Circuit TIME display.L90 connects to the GDM. When the GDM sensesvoltage on circuit L90, it monitors circuit E2 from the DIAGRAM INDEXinterior lamps dimming switch to determine the se-lected display intensity. Component Page Circuit Z1 provides ground for the GDM. Circuit Z1connects to three cavities of the GDM. Fuse 10 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4 Fuse 12 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-46-4 Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4TRANSFER CASE RANGE DISPLAY Fuse 19 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-46-4 When the transfer case is in either 4WD Low, Part Graphic Display Module (GDM) . . . . . . . . . . . . . .8W-46-4, 5Time 4WD, or Full Time it connects circuit G28 from Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4the Graphic Display Module (GDM) to ground on cir- Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-4cuit Z1. In response, the GDM illuminates the 4WD Transfer Case . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-46-5display. When the transfer case switch is in 4WD Low, itconnects circuit G28 from the GDM to ground on cir-
  • 45. ZJ 8W-47 AUDIO SYSTEM 8W - 47 - 1 AUDIO SYSTEMS INDEX page pageDiagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2 Radio Memory . . . . . . . . . . . . . . . . . . . . . . . ........... 1Power Amplifier and Speakers . . . . . . . . . . . ........... 1 Radio Operation . . . . . . . . . . . . . . . . . . . . . ........... 1Power Antenna . . . . . . . . . . . . . . . . . . . . . . ........... 2 Speakers—Standard Radio . . . . . . . . . . . . . ........... 1Radio Illumination . . . . . . . . . . . . . . . . . . . . ........... 1RADIO OPERATION from the speaker jumper harness connects to circuit There are two audio systems offered on this vehi- X57. Circuit X57 is the return from the speaker tocle. The standard system uses four speakers and a the radio.standard antenna. The optional system has six Circuit X52 feeds the right rear door speaker. Cir-speakers, power amplifier, and a power antenna. cuit X58 is the return from the speaker to the radio. Both systems are powered by circuit X12 from the Circuits X52 and X58 continue through the jumper10 amp fuse located in cavity 10 of the fuse block. harness to the right rear door speaker.This fuse is HOT when the ignition switch is in theACCESSORY or RUN position. POWER AMPLIFIER AND SPEAKERS Power for the fuse is supplied on circuit A31 from The power amplifier is used on the optional systemthe ignition switch. Power for the A31 circuit is sup- only. It is connected between the radio and theplied by circuit A1 from the Power Distribution Cen- speakers. Circuit F75 from fuse 4 in the fuse blockter (PDC). The A1 circuit is protected by a 40 amp supplies battery voltage to the radio amplifier. Cir-fuse located in cavity 12 of the PDC. cuit Z1 provides ground for the amplifier. Circuit X64 The standard and optional radios use an external which connects to circuit X60 from the radio at theground. power antenna relay, supplies voltage to the ampli- fier.RADIO MEMORY From the radio, circuits X54 and X56 for the right Both the standard and optional radios are con- front speaker and the tweeter in the right side of thenected to the Ignition-Off Draw (IOD) fuse located inthe Power Distribution Center (PDC) cavity 1. The instrument panel, connect to the power amplifier.IOD fuse is a 20 amp and supplies power to fuse 5 Circuit X54 is the feed from the radio to the ampli-and fuse 8 in the fuse block on circuit A4. From fuse fier. Circuit X82 is the feed from the amplifier to the8, circuit F60 supplies power to the radio. right tweeter and right front door speaker. Circuit For additional information on the IOD fuse, refer X80 is the return from the tweeter and speaker toto section 8W-10. The IOD fuse is removed during ve- the amplifier and circuit X56 is the return from thehicle shipping to prevent excessive battery draw. amplifier to the radio. Circuits X80 and X82 from the amplifier connect to circuits X56 and X54 at theRADIO ILLUMINATION jumper harness for the right front door speaker. When the parking lamps or the headlamps are ON, For the left front door speaker and the tweeter incircuits E2 and L90 are used to power the radio illu- the left side of the instrument panel, circuits X53mination lamps. Circuit E2 is used for the dimmable and X55 from the radio connect to the power ampli-lamps. Circuit L90 is the parking lamps feed. fier. Circuit X53 is the feed from the radio to the am- plifier. Circuit X87 is the feed from the amplifier toSPEAKERS—STANDARD RADIO the left tweeter and left front door speaker. Circuit The standard radio uses four speakers. Circuit X53 X85 is the return from the tweeter and speaker tofeeds the speaker in the left front door. Circuit X55 is the amplifier and circuit X55 is the return from thethe return from the speaker to the radio. amplifier to the radio. Circuits X87 and X85 from the Circuit X54 feeds the right front door speaker. Cir- amplifier connect to circuits X55 and X53 at thecuit X56 is the return from the speaker to the radio. jumper harness for the left front door speaker. From the radio, circuit X51 connects to circuit X52 Circuit X51, the feed for the left rear door speakerat the jumper harness for the left rear door speaker. and circuit X57, the return for the speaker, connectCircuit X51 and X52 feed the speaker. Circuit X58 from the radio to the power amplifier. At the jumper
  • 46. 8W - 47 - 2 8W-47 AUDIO SYSTEM ZJharness for the left rear door speaker, circuit X93 tion. In the UP position, the switch connects circuitfrom the amplifier connects to circuit X52 and circuit A18 to circuit X16. Circuit X16 supplies voltage toX91 connects to circuit X58. Circuits X93 and X52 power antenna motor to raise the antenna. Thefeed the speaker. The speaker return is on Circuit ground path is from the motor to the relay on circuitX58 and circuit X91. X17, through the switch in the relay to ground on cir- Circuit X52, the feed for the right rear door cuit Z1.speaker and circuit X58, the return for the speaker,connect from the radio to the power amplifier. At the HELPFUL INFORMATIONjumper harness for the right door speaker, circuit At the power antenna relay, circuit X60 connects toX94 from the amplifier connects to circuit X52 and circuit X64. Circuit X64 connects to the radio ampli-circuit X92 connects to circuit X58. Circuits X94 and fier.X52 feed the speaker. The speaker return is on cir- Although the radio is connected to the CCD bus, itcuits X58 and X92. does not transmit or receive data during this model year.POWER ANTENNA The power antenna relay supplies voltage to the DIAGRAM INDEXpower antenna motor. A switch in the relay suppliesvoltage to the antenna motor to either raise or lower Component Pagethe antenna. Circuit A7 from fuse 14 in the Power Distribution Fuse 1 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-47-7Center (PDC) supplies battery voltage to circuit A18 Fuse 1 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-47-3, 5 Fuse 4 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-47-6through fuse 1 in the fuse block. Circuit A18 supplies Fuse 8 (Fuse Block) . . . . . . . . . . . . . . . . . . . . .8W-47-3, 5power to the switch inside the power antenna relay. Fuse 10 (Fuse Block) . . . . . . . . . . . . . . . . . . . .8W-47-3, 5 When the radio is OFF, the switch in the power an- Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-47-3, 5tenna relay is in the DOWN position. In DOWN po- Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . .8W-47-3, 5, 6, 7sition, the switch connects circuit A18 to circuit X14. Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-47-3, 5Circuit X14 supplies voltage to power antenna motor Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . .8W-47-6, 7to lower the antenna. The ground path is from the Power Antenna . . . . . . . . . . . . . . . . . . . . . . . . . .8W-47-7motor to the relay on circuit X16, through the switch Power Antenna Relay . . . . . . . . . . . . . . . . . . . . . .8W-47-7in the relay to ground on circuit Z1. Radio . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-47-3 thru 9 Circuit Z1 provides ground for the coil side of the Speakers—Standard Radio . . . . . . . . . . . . . . . . . .8W-47-4power antenna relay. When the radio is turned ON, Speakers—Premium Radio . . . . . . . . . . . . . . . . .8W-47-8, 9circuit X60 from the radio supplies power to the coilside of relay and the relay switches to the UP posi-
  • 47. ZJ 8W-48 HEATED REAR WINDOW 8W - 48 - 1 HEATED REAR WINDOWHEATED REAR WINDOW HELPFUL INFORMATION The heated rear window relay, located in the relay • When the ignition switch is in the START or RUNcenter under the glove box, supplies power to heated positions, it connects circuit A2 from fuse 13, a 60rear window grid. When the operator depresses the amp, in the PDC to circuit A22. Circuit A22 suppliesheated rear window switch, the contacts inside the battery voltage to the fuse block bus bar that powersswitch momentarily close and circuit C80 connects circuit F83 through the fuse in cavity 19.the relay timer to ground on circuit Z1. This causes • Circuit A7 from PDC fuse 14, a 40 amp, suppliesthe relay to change state and complete a circuit to battery voltage to the fuse block bus bar that feedsenergize the coil side of the relay and start the relay the 30 amp circuit breaker in fuse cavity 28.timer. Circuit F83 from fuse 19, a 15 amp, in the fuse • Check for broken grid lines on the window.block supplies voltage to the coil and contact sides of • Check for a broken bus bar or disconnected leadsthe relay. Circuit Z1 provides ground for the relay. at the rear window. When the heated rear window relay energizes, thecontacts inside the relay close and connect circuit DIAGRAM INDEXF83 to circuit C15. Fuse 19, a 15 amp, in the fuseblock protects circuit F83. Component Page Power for the relay is supplied on circuit F82. Thiscircuit is protected by a 30 amp circuit breaker lo- Circuit Breaker (Fuse Block Cavity 28) . . . . . . . . . . .8W-48-2 Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-48-2cated in cavity 28 of the fuse block. Power for the cir- Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-48-2cuit breaker is supplied on circuit A7 from the Power Fuse 19 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-48-2Distribution Center (PDC). The A7 circuit is pro- Fuse 23 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-48-3tected by a 40 amp fuse located in cavity 14. Heated Rear Window Grid . . . . . . . . . . . . . . . . . . .8W-48-3 Circuit C15 is spliced in the instrument panel har- Heated Rear Window Relay . . . . . . . . . . . . . . . . . .8W-48-2ness and supplies voltage from the closed contacts in Heated Rear Window Switch . . . . . . . . . . . . . . . . .8W-48-3the switch to the heated rear window grid, the heat- Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-48-2ers in the power mirrors, and the Light Emitting Di-ode (LED) in the switch. Ground for the heated rear window grid is suppliedon circuit Z1.
  • 48. ZJ 8W-49 OVERHEAD CONSOLE 8W - 49 - 1 OVERHEAD CONSOLE INDEX page pageOverhead Console ......................... 1 Diagram Index ............................ 2OVERHEAD CONSOLE When the ignition switch is in the RUN position, itconnects circuit A2 from fuse 13 in the Power Distri-bution Center (PDC) to circuit A22. Circuit A22 sup-plies power to circuit F83 through fuse 19 in the fuseblock. Circuit F83 supplies power to the overheadconsole. When the headlamps or parking lamps are ON,circuits L90 and E2 provide voltage to the overheadconsole for illumination. Voltage on circuit L90 in-forms the overhead console that the headlamps orparking lamps are ON. Circuit E2 from the dimmingmodule (or dimming/DRL module on Canadian ve-hicles) powers the illumination lamps in the overheadconsole. Circuit G44 from the fuel level sending unit sendsthe fuel level signal to the overhead console. CircuitZ2 provides ground for the overhead console and thefuel level sending unit.US/METRIC SWITCH If the vehicle is equipped with Automatic Tempera-ture Control (ATC), circuit G25 from the US/Metricswitch in the overhead console connects to the ATCmodule (Fig. 1). Circuit G25 also connects to thegraphic display module or vehicle information center Fig. 1 U/S Metric Switch(if equipped). AMBIENT TEMPERATURE SENSOR If the vehicle is not equipped with ATC, circuit G25 The ambient temperature sensor is a variable resis-connects to a connector that when connected, causes tor. Circuit C8 supplies voltage from the overheadthe overhead console to display metric units only. console to the sensor. Circuit D41 is the signal returnRefer to Group 8W-C, Overhead Console. from the sensor to the overhead console. CCD BUS The overhead console connects to the CCD bus on circuits D1 and D2. Circuits D1 and D2 are a twisted pair of wires.
  • 49. 8W - 49 - 2 8W-49 OVERHEAD CONSOLE ZJDIAGRAM INDEXComponent PageABS Control Module . . . . . . . . . . . . . . . . . . . . . . .8W-49-5ABS Data Link Connector . . . . . . . . . . . . . . . . . . . .8W-49-5Ambient Temperature Sensor . . . . . . . . . . . . . . . . .8W-49-3Automatic Temperature Control (ATC) Module . . . . . . .8W-49-5Dimming Module/DRL Module . . . . . . . . . . . . . . . . .8W-49-4Fuel Pump Module . . . . . . . . . . . . . . . . . . . . . . . .8W-49-3Fuse 10 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-49-4Fuse 12 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-49-4Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-49-3Fuse 19 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-49-3Graphic Display Module . . . . . . . . . . . . . . . . . . . . .8W-49-4Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . . . .8W-49-4Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-49-3Overhead Console . . . . . . . . . . . . . . . . . . . . .8W-49-3, 4, 5Powertrain Control Module . . . . . . . . . . . . . . . . . . .8W-49-5
  • 50. ZJ 8W-50 FRONT LIGHTING 8W - 50 - 1 FRONT LIGHTING INDEX page pageAuto Headlamp Module . . . . . . . . . . . . . . . . ........... 2 Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . ........... 2Daytime Running Lamps Module . . . . . . . . . ........... 2 Headlamp Switch . . . . . . . . . . . . . . . . . . . . ........... 1Diagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 3 Instrument Panel Dimming Module . . . . . . . . ........... 2HEADLAMP SWITCH Circuit L11 connects to the dimmer switch portion The headlamp switch has five positions: AUTO, of the multi-function switch. Circuit L11 suppliesOFF, PARK, LOW, and LOW/FOG. The headlamp power for the high beams on circuit L3 when the op-switch also has a position for the courtesy lamps and erator flashes the headlamps with the turn signala cancelling switch connected to the instrument stalk of the multi-function switch.panel dimming module. Circuit A6 from fuse 10 in the PDC connects to the HELPFUL INFORMATIONheadlamp switch. Circuit A6 also feeds circuit 366 • Check fuse 10 in PDC.through fuse 12 in the fuse block. Circuit 366 con- • Check fuse 12 in the fuse block.nects to the headlamp switch. HEADLAMP SWITCH IN ON POSITION The headlamp switch has an internal circuit When the headlamp switch is in the ON position,breaker that connects circuit A6 to circuit F34. Cir- circuit A6 from fuse 10 in the Power Distributioncuit F34 connects to the dimmer switch circuitry in Center (PDC) connects to circuit F34. Circuit F34the multi-function switch. connects to the dimmer switch portion of the multi- Circuit A7 from fuse 14 in the PDC feeds circuit function switch and feeds circuit L4. Circuit L4 pow-L11 through fuse 7 in the fuse block. Circuit L11 con- ers the low beam of the headlamps. When the fognects to the dimmer switch circuitry in the multi- lamps are on, circuit L4 powers the lamp for the fogfunction switch, supplying power for the high beams. lamp switch. Circuit L4 connects to the instrument When the courtesy lamp switch closes, the head- panel dimming module.lamp switch connects circuit M2 from the courtesy When the operator selects high beam operationlamps to circuit Z1. Circuit Z1 provides ground to il- with the turn signal stalk of the multi-functionluminate the courtesy lamps. switch, circuit L11 connects to the L3 circuit. Circuit The cancelling switch in the headlamp switch con- L3 powers high beam operation. Circuit L3 also con-nects circuit 52 from the instrument panel dimming nects to the instrument panel dimming module andmodule to ground on circuit Z1. The switch either Vehicle Theft Alarm (VTA) module.connects circuit 52 directly to ground on circuit Z1(cancelling switch closed) or through a resistor to HEADLAMP GROUNDground on circuit Z1 (cancelling switch open). Circuit Z1 provides ground for both the right and Circuit E2 powers the illumination lamps in the left headlamps. Circuit Z1 also supplies ground theheadlamp switch. Circuit Z1 provides ground for the turn signal lamps, and if equipped, the fog lamps.illumination lamps. HELPFUL INFORMATIONHEADLAMP SWITCH IN PARKING LAMP • Check fuses 10 and 14 in the PDC.POSITION • Check fuse 7 in the fuse block. When the PARK lamps are ON, the headlamp • The headlamp switch has an internal circuitswitch connects circuit 366 to circuit L90. From the breaker.headlamp switch, circuit L90 branches to power the • The auto headlamp module powers circuit F34optional lamp outage module, front parking lamps when the headlamp switch is in the AUTO position.and rear tail lamps, side marker lamps, and rear li- • Circuit L11 is double crimped at the multi-functioncense plate lamps. Circuit L90 also connects to the switch. The L11 branch from the multi-functionoverhead console, fuse 24 in the fuse block, Vehicle switch connects to the Vehicle Theft Alarm (VTA)Theft Alarm (VTA) module, HVAC module, and radio. module. Circuit Z1 provides a ground for the parking lamps • Circuit 366 is double crimped at the headlampand side marker lamps. The Z1 circuit also provide switch. The circuit 366 branch from the headlampground for the headlamps. switch connects to the auto headlamp module.
  • 51. 8W - 50 - 2 8W-50 FRONT LIGHTING ZJFOG LAMPS Circuit Z1 provides ground for the auto headlamp The fog lamps are controlled by the headlamp module. When the headlamp switch is in the AUTOswitch and the fog lamp relay. The fog lamps operate position, it connects circuit L24 from the auto head-only when the headlamp switch is in the LOW/FOG lamp module to ground on circuit Z1. Circuit Z1 alsoposition. When the headlamps are in high-beam op- connects directly to the auto headlamp module.eration, the fog lamps will not operate. Circuit L109 from the auto headlamp powers the Circuit F34 from the headlamp switch connects to light sensor. Circuit L110 provides the input from thethe dimmer switch and feeds the low beams on cir- sensor to the auto headlamp module.cuit L4. When the low beams are on, circuit L4 from Circuit L90 from the headlamp switch powers thethe dimmer switch feeds the coil side of the fog lamp parking lamps and connects to the auto headlamprelay. When the headlamp switch is in the LOW/FOG module.position, it connects circuit L35 from the coil side of When the headlamp switch is in the AUTO posi-the relay to circuit Z1. Circuit Z1 provides ground for tion, the auto headlamp module powers circuit F34.the relay. When just the LOW beams are on, the Circuit F34 connects to the dimmer switch. The dim-headlamp switch does not ground the coil side of the mer switch connects circuit F34 to circuit L4. Circuitfog lamp relay. L4 powers the low beams of the headlamps. After the coil side of the relay energizes, the con-tacts in the relay close. When the relay contacts HELPFUL INFORMATIONclose, they connect circuit L34 from fuse 4 in the • The headlamp switch powers circuit F34 when thePower Distribution Center (PDC) to circuit L39. Cir- switch is in the LOW or LOW/FOG position.cuit L39 powers the fog lamps. Circuit Z1 providesground for the fog lamps. DAYTIME RUNNING LAMPS MODULEFOG LAMP SWITCH ILLUMINATION On Canadian models, the instrument panel dim- A Light Emitting Diode (LED) illuminates the fog ming module and Daytime Running Lamps (DRL)lamp switch. Circuit L4 is double crimped at the fog module are the same. The Instrument Panel Dim-lamp relay and supplies power to the LED through ming/DRL module operates the low beams of thean additional diode and resistor in the headlamp headlamps when the ignition is in the RUN position.switch. When the headlamp switch is in the LOW/ In the RUN position, the ignition switch connectsFOG position, the switch connects the LED to circuit circuit A2 from fuse 13 in the Power DistributionZ1. Circuit Z1 provide ground to illuminate the LED. Center (PDC) to circuit A22. Circuit A22 supplies power to circuit F83 through fuse 19 in the fuseAUTO HEADLAMP MODULE block. Circuit F83 splices to the Instrument Panel When the headlamp switch is in the AUTO posi- Dimming/DRL module.tion, the auto headlamp module powers the head- Circuit L26 from the headlamp switch also con-lamps. A light sensor provides the input used by the nects to the Instrument Panel Dimming/DRL module.module to determine if driving conditions warrant Circuit L4 powers the low beams of the left andoperating with the headlamps on. right headlamps. When the headlamp switch is OFF, Circuit A6 from fuse 10 in the Power Distribution the Instrument Panel Dimming/DRL module powersCenter (PDC) supplies battery voltage to circuit L26 the low beams on circuit L4. When the headlampsthrough the circuit breaker in the headlamp switch. are ON, the dimmer switch in the multi-functionCircuit L26 powers the auto headlamp module. Cir- switch powers the low beams on circuit L4.cuits A6 and L26 are HOT at all times. Circuit L3 feeds the high beams of the headlamps. Circuit A6 also powers circuit 366 through fuse 12 When the operator flashes the headlamps with thein the fuse block. Circuit 366 is double crimped at stalk of the multi-function switch, the DRL sensesthe headlamp switch. The branch of circuit 366 fromthe headlamp switch connects to the auto headlamp voltage on circuit L3. When it senses voltage on cir-module. cuit L3, the Instrument Panel Dimming/DRL module When the ignition switch is in the RUN position, it stops supplying power to the low beams on circuitconnects circuit A2 from fuse 13 in the PDC to circuit L4.A22. Circuit A22 powers circuit F83 through fuse 19 Circuit Z1 provides ground for the Instrumentin the fuse block. Circuit F83 connects to the auto Panel Dimming/DRL module.headlamp module.
  • 52. ZJ 8W-50 FRONT LIGHTING 8W - 50 - 3DIAGRAM INDEXComponent PageAutomatic Headlamp Light Sensor . . . . . . . . . . . . . .8W-50-9Automatic Headlamp Module . . . . . . . . . . . . . . . . .8W-50-9Dimming Module/DRL Module . . . . . . . . . . . . .8W-50-10, 11Fog Lamp Relay . . . . . . . . . . . . . . . . . . . . . . . . .8W-50-8Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-50-8Fuse 4 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-50-8Fuse 7 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-50-5Fuse 10 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-50-4, 8Fuse 12 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-50-4Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-50-9, 11Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-50-5Fuse 19 (Fuse Block) . . . . . . . . . . . . . . . . . . . . .8W-50-11Automatic Headlamp Light Sensor . . . . . . . . . . . . . .8W-50-9Fuse 24 (Fuse Block) . . . . . . . . . . . . . . . . . . .8W-50-4, 10Headlamp Dimmer Switch . . . . . . . . . . . . . . . . . . .8W-50-5Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . .8W-50-4, 8Headlamps . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-50-6, 7Ignition Switch . . . . . . . . . . . . . . . . . . . . . . .8W-50-9, 11Marker Lamps . . . . . . . . . . . . . . . . . . . . . . . . .8W-50-6, 7Park Brake Switch . . . . . . . . . . . . . . . . . . . . . . .8W-50-10Park Lamps . . . . . . . . . . . . . . . . . . . . . . . . . .8W-50-6, 7Turn Signal Lamps . . . . . . . . . . . . . . . . . . . . . .8W-50-6, 7
  • 53. ZJ 8W-51 REAR LIGHTING 8W - 51 - 1 REAR LIGHTINGTAIL LAMPS, REAR LICENSE PLATE LAMPS AND the back-up lamp switch is part of an assembly thatSIDE MARKER LAMPS includes the PARK/NEUTRAL position switch. When the operator puts the transmission in REVERSE, the The headlamp switch has five positions: AUTO, OFF, back-up lamp switch connects circuit F83 to circuitPARK, LOW, and LOW/FOG. The headlamp switch also L10. Circuit L10 feeds the back-up lamps. Circuit Z1has a position for the courtesy lamps and a cancelling provides ground for the back-up lamps.switch connected to the instrument panel dimming mod-ule. HELPFUL INFORMATION Circuit A6 from fuse 10 in the PDC connects to the • Check fuses 5 and 12 in the PDC.headlamp switch. Circuit A6 also feeds circuit 366 • Check for continuity across the back-up lampthrough fuse 12 in the fuse block. Circuit 366 con- switch when it is closed.nects to the headlamp switch. When the headlamp switch is in the PARK or LOW LAMP OUTAGE MODULE (LOM)position, the switch connects circuit 366 to circuit The Lamp Outage Module (LOM) determines if aL90. From the headlamp switch, circuit L90 branches rear lighting lamp is not operating. When the igni-to power the front parking lamps, side marker lamps, tion switch is in the START or RUN position, circuitand rear tail lamps, and license plate lamps. A1 from fuse 12 in the Power Distribution Center Circuit Z1 provides a ground for the parking lamps, (PDC) connects to circuit A22. Circuit A21 feeds cir-tail lamps, and rear license plate lamps. cuit F87 through fuse 22 in the fuse block. Circuit F87 feeds the LOM.HELPFUL INFORMATION Circuit G46 from the LOM connects to the Vehicle• If the vehicle is equipped with factory installed Information Center (VIC). When the LOM senses atrailer tow, circuit L90 connects to the trailer tow inoperative lamp, the VIC displays the data to theharness. vehicle operator.• Check fuse 10 in PDC. Circuit L90 which feeds the tail lamps and side• Check fuse 12 in the fuse block. marker lamps, connects to the LOM. From the LOM, circuit L90 continues to the license plate lamps. Cir-STOP LAMPS AND CHMSL LAMPS cuits L21 and L22 from the LOM power the tail Circuit A7 from fuse 14 in the Power Distribution lamps and side marker lamps.Center (PDC) supplies voltage to circuit L16 through Circuit L50 from the stop lamp switch connects to thefuse 2 in the fuse block. Circuit L16 connects to the LOM. From the LOM, circuit L74 powers the left stopstop lamp switch. lamp and circuit L73 powers the right stop lamp. When the operator depresses the brake pedal, thestop lamp switch closes and connects circuit L16 to DIAGRAM INDEXcircuit L50. Circuit L50 connects to the stop lampsand Center High Mounted Stop Lamps (CHMSL). Component PageCircuit Z1 provides a ground for the stop lamps and ABS Control Module . . . . . . . . . . . . . . . . . . . . . .8W-51-2CHMSL lamps. Back-Up Lamps . . . . . . . . . . . . . . . . . . . . . . . . . .8W-51-4 Back-Up Lamp Switch . . . . . . . . . . . . . . . . . . . . .8W-51-4HELPFUL INFORMATION Center High Mounted Stop Lamps (CHMSL) . . . . . . .8W-51-3• Check fuses 4 and 15 in the PDC. Fuse 2 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-51-2• Check for continuity across the stop lamp switch Fuse 5 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-51-4when it is closed. Fuse 10 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-51-2• If the vehicle is equipped with the Lamp Outage Fuse 12 (Fuse Block) . . . . . . . . . . . . . . . . . .8W-51-2, 4, 8Module (LOM), circuit L50 connects to the LOM. Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-51-2From the LOM, circuits L87, L73 and L74 continue Fuse 22 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-51-8to the stop lamps and CHMSL. Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . . . .8W-51-2 Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-51-4, 8BACK-UP LAMPS Lamp Outage Module (LOM) . . . . . . . . . . . .8W-51-3, 5, 6, 8 In the RUN position, the ignition switch connects cir- License Plate Lamps . . . . . . . . . . . . . . . . . . . . . .8W-51-6cuit A1 from fuse 12 in the Power Distribution Center Side Marker Lamps . . . . . . . . . . . . . . . . . . . . . . .8W-51-5(PDC) to circuit A21. Circuit A21 feeds a bus bar in the Stop Lamp Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-51-2PDC that powers circuit F83 through fuse 5. Tail/Stop Lamps . . . . . . . . . . . . . . . . . . . . . . . . .8W-51-3 Circuit F83 supplies power to the back-up lamp Turn Signal Lamps . . . . . . . . . . . . . . . . . . . . . . .8W-51-7switch. On automatic transmission equipped vehicles, Vehicle Information Center . . . . . . . . . . . . . . . . . . .8W-51-8
  • 54. ZJ 8W-52 TURN SIGNALS 8W - 52 - 1 TURN SIGNALSELECTRONIC FLASHER RELAY • Check fuse 13 in the PDC and fuse 16 in the fuse The electronic flasher relay supplies battery volt- block if the turn signals do not operate.age to the turn signal/hazard switch circuitry in themulti-function switch. When the ignition switch is HAZARD FLASHERSOFF, the hazard flashers will operate but the turn When the operator selects the hazard flashers, thesignals will not. multi-function switch circuit L12 from the flasher In the ACCESSORY or RUN position, the ignition relay circuits L60, L61, L64 and L65.switch connects circuit A2 from fuse 13 in the Power Circuit L61 feeds the left rear turn signal lamp.Distribution Center (PDC) to circuit A22. Circuit A22 Circuit L60 feeds the right rear turn signal lamp.feeds circuit L6 through fuse 16 in the fuse block. Circuit L65 feeds the left front turn signal lamp and Circuit L6 supplies power to the flasher relay. Cir- the instrument cluster indicator lamp. Circuit L64cut Z1 provides ground for the relay. feeds the right front turn signal lamp and the instru- Circuit L12 from the flasher relay connects to the ment cluster indicator lamp.multi-function switch to supply power to the hazard Circuit Z1 provides ground for the hazard flasherflasher circuits. The multi-function switch connects lamps.to the rear turn signal lamps on circuits L60 and L61and the front turn signal lamps on circuits L64 and HELPFUL INFORMATION THE HAZARDL65. Flasher lamps are the same lamps used for the turn signals.TURN SIGNALS When the operator selects the right turn signal, themulti-function switch connects circuit L5 from the DIAGRAM INDEXflasher relay to circuits L60 and L64. Circuit L64feeds the right front turn signal lamp; circuit L60 Component Pagefeeds the right rear turn signal lamp. Circuit L64 Electronic Flasher Relay . . . . . . . . . . . . . . . . . . . . .8W-52-2also splices to power the right turn signal indicator Fuse 3 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-52-2lamp in the instrument cluster. Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-52-2 When the operator selects the left turn signal, the Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-52-2multi-function switch connects circuit L5 from the Fuse 16 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-52-2flasher relay to circuits L61 and L65. Circuit L61 Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-52-2feeds the left rear turn signal lamp; circuit L65 feeds Marker Lamps . . . . . . . . . . . . . . . . . . . . . . . . .8W-52-3, 4the left front turn signal lamp. Circuit L65 also Park Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-52-3, 4splices to power the left turn signal indicator lamp Turn Signal/Hazard Switch . . . . . . . . . . . . . . . . .8W-52-3, 4on the instrument cluster. Turn Signal Indicator Lamps . . . . . . . . . . . . . . . .8W-52-3, 4 Turn Signal Lamps . . . . . . . . . . . . . . . . . . . . . .8W-52-3, 4 Circuit Z1 provides ground for the turn signal Vehicle Information Center (VIC) . . . . . . . . . . . . .8W-52-3, 4lamps.HELPFUL INFORMATION• The turn signal lamps are the same lamps usedfor the hazard flasher.
  • 55. ZJ 8W-53 WIPERS 8W - 53 - 1 WIPERS INDEX page pageDiagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2 Rear Wiper/Washer . . . . . . . . . . . . . . . . . . . ........... 1Intermittent Wipers . . . . . . . . . . . . . . . . . . . ........... 1 Washer Fluid Level Sensor . . . . . . . . . . . . . ........... 2INTERMITTENT WIPERS HELPFUL INFORMATION The intermittent wiper system is standard equip- • Check the 40 amp fuse in cavity F12 of the PDCment on this vehicle. Power for the system is sup- • Check the 10 amp circuit breaker in cavity 27 ofplied on circuit F86 from the 10 amp circuit breaker the fuse blockin cavity 27 of the fuse block. Circuit F86 splices tothe intermittent wiper module and the wiper switch. REAR WIPER/WASHER Power for the circuit breaker is supplied on circuit The optional rear wiper and washer system uses aA31 from the ignition switch. This circuit is HOT in switch assembly located in the right switch pod.the ACCESSORY and RUN positions only. Power for Power for the switch pod is supplied by circuit V23the A31 circuit is supplied on circuit A1 from the from the fuse box. This circuit is protected by a 20Power Distribution Center (PDC). This circuit is amp fuse located in cavity 9.HOT at all times and protected by a 40 amp fuse lo- Power for fuse 9 is supplied on circuit A31 from thecated in cavity 12. ignition switch. This circuit is HOT in the ACCES- Ground for the wiper system is provided on circuit SORY and RUN positions only. Power for the A31 cir-Z1. cuit is supplied on circuit A1 from the Power When the operator moves the wiper switch to the Distribution Center (PDC) fuse 12.LOW position, battery voltage passes through the Power for the rear wiper motor and the controlswitch to circuit V3. Circuit V3 feeds the wiper motor module located internal to the motor assembly is pro-low speed brushes through the intermittent wiper vided by the A18 circuit from the fuse block fuse 1.module. If the operator selects wiper HIGH speed op- This fuse is HOT at all times. Power for the fuse iseration, the wiper switch passes current to circuitV4. Circuit V4 feeds the wiper motor high speed supplied on the A7 circuit from the PDC. This circuitbrushes through the intermittent wiper module. is protected by a 40 amp fuse located in cavity 14. The DELAY portion of the wiper switch contains a When the operator selects the ON position, powervariable resistor. The variable resistor connects to is supplied through the switch to circuit V13. Thethe intermittent wiper module through the wiper V13 circuit connects from the switch to the rearswitch harness. The amount of delay selected by the wiper control module.operator determines the voltage drop through the re- The module processes this signal and suppliessistor and the voltage level received by the intermit- power to the wiper motor. Ground for the wiper mo-tent wiper module on circuit V50. tor is supplied on circuit Z1. After the intermittent wiper control module deter- When the switch is placed in the DELAY position,mines the amount of delay selected, it cycles the wip- power is supplied from the switch to the motor con-ers by periodically energizing circuit V3. Circuit V3 trol on circuit V24. The module processes this signalpowers the wiper motor low speed brushes. and connects the motor to voltage. The amount of As the windshield wiper motor turns, the park DELAY is controlled by the position of the rear wiperswitch, internal to the motor, moves from its DOWN switch.position to the UP position. When the wiper switch is When the WASH switch is activated, power isturned OFF, the F86 circuit prevents the wipers from passed through the switch to circuit V20. This circuitstopping in any position but park. is double crimped at the switch. One branch of the The windshield washer uses a pump motor located circuit connects to the rear wiper control module. Theinside the windshield washer fluid reservoir. When other branch connects to the rear washer pump mo-the washer switch is pressed, power is supplied tor.through the wiper switch to the pump motor on cir- An additional input to the wiper control module iscuit V11. Circuit Z1 provides ground for the pump supplied on circuit G78. This circuit is connected tomotor.
  • 56. 8W - 53 - 2 8W-53 WIPERS ZJthe liftgate ajar switch, and is used to signal to the DIAGRAM INDEXcontrol when the liftgate is ajar. When the liftgate is ajar the wiper control module Component Pagewill not allow the rear wiper or washer to operate. Circuit Breaker (Fuse Block Cavity 27) . . . . . . . . . . .8W-53-3 Fuse 1 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-53-5HELPFUL INFORMATION Fuse 9 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-53-5• Check the 40 amp fuse located in cavity 12 of the Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-53-3, 5PDC Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-53-5• Check the 20 amp fuse located in cavity 9 of the Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-53-3, 5fuse block Intermittent Wiper Control Module . . . . . . . . . . . .8W-53-3, 4• Check the operation of the liftgate ajar switch Intermittent Wiper Motor . . . . . . . . . . . . . . . . . . . .8W-53-4 Intermittent Wiper Switch . . . . . . . . . . . . . . . . . . .8W-53-3WASHER FLUID LEVEL SENSOR Liftgate Ajar Switch . . . . . . . . . . . . . . . . . . . . . . .8W-53-6 Vehicles equipped with the optional Vehicle Infor- Liftglass Ajar Switch . . . . . . . . . . . . . . . . . . . . . .8W-53-6mation Center (VIC) have a washer fluid level sensor Rear Washer Pump Motor . . . . . . . . . . . . . . . . . . .8W-53-6located in the washer fluid reservoir. Power for the Rear Wiper Motor . . . . . . . . . . . . . . . . . . . . . . . .8W-53-5sensor is supplied from the VIC on circuit G29. Rear Wiper Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-53-5 When the fluid in the reservoir reaches a cali- Vehicle Information Center . . . . . . . . . . . . . . . . . . .8W-53-4brated level the contacts in the sensor close connect- Washer Fluid Level Sensor . . . . . . . . . . . . . . . . . .8W-53-4ing the G29 circuit to ground on circuit Z1. Windshield Washer Pump Motor . . . . . . . . . . . . . . .8W-53-4HELPFUL INFORMATION• Check the continuity of the switch
  • 57. ZJ 8W-54 TRAILER TOW 8W - 54 - 1 TRAILER TOWTRAILER TOW The A18 circuit is HOT at all times and protected by The factory installed trailer tow system in this ve- a 10 amp circuit breaker located in the right rearhicle uses three relays and a circuit breaker along quarter panel.with the trailer tow wiring connector located belowthe rear bumper. LEFT TURN RELAY Battery voltage for the trailer tow circuit breaker Power for the coil side of the left turn relay is sup-and the stop lamp relay is supplied on circuit A18. plied by circuit L61. This circuit connects to the leftThis circuit is HOT at all times and protected by a side turn signal lamps. Ground for the coil side of the20 amp fuse in cavity 1 of the fuse block. Power for relay is supplied on circuit Z1.the fuse is supplied on circuit A7 from the Power Dis- When the operator turns the left turn signal ON,tribution Center (PDC). The A7 circuit is protected power flows through the coil in the relay to groundby a 40 amp fuse in cavity 12 of the PDC. causing the contacts in the relay to switch from the The trailer tow circuit breaker is a 10 amp and lo- normally CLOSED position to connect circuits 94 andcated in the right rear quarter panel. L61. Circuit 94 is the feed for the contact side of the re-STOP LAMP RELAY lay. Circuit L61 connects from the relay to the trailer Power for the coil side of the stop lamp relay is tow connector.supplied by circuit L50. This circuit connects to the Circuit 94 is fed power through the normallystop lamps. Ground for the coil side is supplied on CLOSED side of the stop lamp relay and circuit A18.circuit Z1. When the operator depresses the brake pedal, volt- The A18 circuit is HOT at all times and protected byage flows through the coil of the relay to ground a 10 amp circuit breaker located in the right rearcausing the contacts in the relay to close connecting quarter panel.circuits A18 and 95. HELPFUL INFORMATION Circuit 95 connects to the left and right turn signal • Check the 40 amp fuse located in cavity 12 of therelays. Voltage flows through the closed contacts inthe relays to the trailer tow connector. PDC • Check the 20 amp fuse located in cavity 1 of theRIGHT TURN RELAY fuse block Power for the coil side of the right turn relay is • Check the In-Line circuit breakersupplied by circuit L60. This circuit connects to theright side turn signal lamps. Ground for the coil side DIAGRAM INDEXof the relay is supplied on circuit Z1. When the operator turns the right turn signal ON, Component Pagepower flows through the coil in the relay to ground Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . .8W-54-4causing the contacts in the relay to switch from the Electric Brake Provision . . . . . . . . . . . . . . . . . . . .8W-54-3normally CLOSED position to connect circuits 94 and Fuse 1 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-54-2L60. Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-54-2 Circuit 94 is the feed for the contact side of the re- Lamp Outage Module (LOM) . . . . . . . . . . . . . . . . .8W-54-3lay. Circuit L60 connects from the relay to the trailer Left Turn Signal Relay . . . . . . . . . . . . . . . . . . . . .8W-54-4tow connector. Right Turn Signal Relay . . . . . . . . . . . . . . . . . . . .8W-54-4 Circuit 94 is fed power through the normally Stop Lamp Relay . . . . . . . . . . . . . . . . . . . . . . . . .8W-54-4CLOSED side of the stop lamp relay and circuit A18.
  • 58. ZJ 8W-60 POWER WINDOWS 8W - 60 - 1 POWER WINDOWS INDEX page pageDiagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2 Power Windows . . . . . . . . . . . . . . . . . . . . . . ........... 1POWER WINDOWS Ground for the motor is supplied on the Q12 circuit The power window system is powered by a 30 amp through the switch and back to the master switch oncircuit breaker located in the fuse block cavity 26. circuit Q16. A bus bar, internal to the switch, con- The circuit breaker receives its feed from the igni- nects the Q16 circuit to the Z1 circuit.tion switch on the A22 circuit. This circuit breaker is For window UP operation, the circuits are reversed.HOT when the ignition switch is in the RUN position Circuit Q12 is the power and circuit Q22 is theonly. ground. Circuit F81 is the feed circuit from the circuitbreaker to the power window switch. This circuit is LEFT REAR WINDOWthe feed for the entire system. The ground path for When the DRIVER selects window DOWN opera-the power windows is on the Z1 circuit. tion, power is supplied on the F81 circuit through the A LOCK-OUT feature is provided on the driver’s switch to circuit Q27.door window switch. When this feature is engaged Circuit Q27 goes from the drivers door switch tothe other windows in the system will not operate. the left rear door connector. At the connector the Q27 circuit switches to circuit Q28. Power is passedLEFT FRONT WINDOW OPERATION through this switch to circuit Q22. The Q22 circuit When the operator selects window DOWN opera- then goes to the left rear window motor.tion, power is supplied on the F81 circuit through the Ground for the window motor is supplied on theswitch to circuit Q21. Circuit Q21 goes from the Q12 circuit back to the left rear door switch. Circuityswitch to the power window motor. Ground for themotor is supplied on the Q11 circuit back to the internal to the switch then passes the ground to cir-switch. A bus bar, internal to the switch, connects the cuit Q18. Circuit Q18 goes from the left rear doorQ11 circuit to the Z1 circuit. switch to the left rear door connector. At the connec- For window UP operation the circuits are reversed. tor the circuit changes to Q17. Circuit Q17 goes toCircuit Q11 is the feed, and circuit Q21 is the the master switch. A bus bar, internal to the switch,ground. connects the Q17 circuit to the Z1 circuit. For window UP operation the circuits are reversed.RIGHT FRONT WINDOW OPERATION Circuits Q12, Q17, and Q18 are the feeds, and cir- When the DRIVER selects window DOWN opera- cuits Q22, Q27, and Q28 are the grounds.tion, power is supplied on the F81 circuit through the If the switch is being operated from the LEFTswitch to circuit Q26. Circuit Q26 goes from the driv- REAR door, and the operator is requesting windowers door switch to the right front door switch. Power DOWN operation, power is supplied on the Q1 circuitis passed through this switch to circuit Q22. The Q22 from the driver’s master switch circuit through thecircuit then goes to the right front window motor. switch to the Q22 circuit. Ground for the window motor is supplied on the Ground for the motor is supplied on the Q12 circuitQ12 circuit back to the right door switch. Circuity in- through the switch and to circuit Q18. Circuit Q18ternal to the switch then passes the ground to circuit connects from the left rear door switch to the leftQ16. Circuit Q16 goes from the right front door rear door connector. At the connector the Q18 circuitswitch to the master switch. A bus bar, internal to is changes to circuit Q17.the switch, connects the Q16 circuit to the Z1 circuit. Circuit Q17 connects from the left rear door con- For window UP operation the circuits are reversed.Circuits Q16 and Q12 are the feeds, and circuits Q22 nector to the master window switch. A bus bar, inter-and Q26 are the grounds. nal to the switch, connects the Q17 circuit to the Z1 If the switch is being operated from the PASSEN- circuit.GER’S front door, and the operator is requesting win- For window UP operation, the circuits are reversed.dow DOWN operation, power is supplied on the Q1 Circuit Q12 is the power and circuits Q22, Q28, andcircuit from the driver’s master switch circuit Q27 are the grounds.through the passengers switch to the Q22 circuit.
  • 59. 8W - 60 - 2 8W-60 POWER WINDOWS ZJRIGHT REAR WINDOW HELPFUL INFORMATION When the DRIVER selects window DOWN opera- • Check the 30 amp circuit breaker located in cavitytion, power is supplied on the F81 circuit through the 26 of the fuse blockswitch to circuit Q28. • Check the 60 amp fuse located in cavity 13 of the Circuit Q28 goes from the drivers door switch to PDCthe right rear door switch. Power is passed through • Refer to the appropriate group of the Service Man-this switch to circuit Q22. The Q22 circuit then goes ual for additional test proceduresto the right rear window motor. Ground for the window motor is supplied on the DIAGRAM INDEXQ12 circuit back to the right rear door switch. Circu-ity internal to the switch then passes the ground to Component Pagecircuit Q18. Circuit Q18 goes from the right rear door Circuit Breaker (Fuse Block Cavity 26) . . . . . . . . . . .8W-60-3switch to the master switch. A bus bar, internal to Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-60-3the switch, connects the Q18 circuit to the Z1 circuit. Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-60-3 For window UP operation the circuits are reversed. Left Front Power Window Motor . . . . . . . . . . . . . . .8W-60-4Circuits Q18 and Q12 are the feeds, and circuits Q22 Left Rear Power Window Motor . . . . . . . . . . . . . . .8W-60-4and Q28 are the grounds. Left Rear Power Window Switch . . . . . . . . . . . . . .8W-60-4 If the switch is being operated from the RIGHT Power Window Master Switch . . . . . . . . . . . . . . . .8W-60-3REAR door, and the operator is requesting window Right Front Power Window Motor . . . . . . . . . . . . . .8W-60-4DOWN operation, power is supplied on the Q1 circuit Right Front Power Window Switch . . . . . . . . . . . . .8W-60-4from the driver’s master switch circuit through the Right Rear Power Window Motor . . . . . . . . . . . . . .8W-60-4switch to the Q22 circuit. Right Rear Power Window Switch . . . . . . . . . . . . . .8W-60-4 Ground for the motor is supplied on the Q12 circuitthrough the switch and back to the master switch oncircuit Q18. A bus bar, internal to the switch, con-nects the Q18 circuit to the Z1 circuit. For window UP operation, the circuits are reversed.Circuit Q12 is the power and circuits Q22 and Q28are the ground.
  • 60. ZJ 8W-61 POWER DOOR LOCKS 8W - 61 - 1 POWER DOOR LOCKSPOWER DOOR LOCKS When the ignition switch is in the RUN position, Two relays provide power for the power door lock circuit F83 from fuse 19 in the fuse block suppliesmotors and the liftgate lock motor. The Unlock relay power to the RKE module. Circuit Z1 providesprovides power for the unlock circuits while the Lock ground for the RKE module.relay powers the lock circuits. Either the power door Circuit G71 from the left and right front door keylock switches or the remote keyless entry module op- switches connects to the RKE module. Circuit G71 alsoerate the Unlock and Lock relays. branches to the Vehicle Theft Alarm (VTA) module. If the vehicle is equipped with the Vehicle Theft The RKE module UNLOCKS the doors by energizingAlarm (VTA) system, the VTA module also operates the unlock relay on circuit P36. Refer to Unlock Relay.the Unlock and Lock relays. The module LOCKS the doors by energizing the lock relay on circuit P35. Refer to Lock Relay.LOCK RELAY Circuit G49 from the Keyless entry module con- Circuit F60 from fuse 8 in the fuse block supplies bat- nects the RKE module to the VTA module.tery voltage to the door lock switches. When either powerdoor lock switch is put in the LOCK position, the switch LIFTGLASS RELEASE SOLENOIDconnects circuit F60 to circuit P35. If the operator uses Circuit F60 from fuse 8 in the fuse block suppliesRemote Keyless Entry (RKE), the RKE module powers power to the liftgate limit switch. When the switchcircuit P35. If the Vehicle Theft Alarm (VTA) activates, closes, it supplies battery voltage to the liftglass pushthe VTA module powers circuit P35. In either case, circuit button on circuit P101.P35 supplies power to the coil side of the lock relay, caus- When voltage in present on circuit P101 and theing the relay contacts to close. The chime module controlsground for the coil side of the relay on circuit P57. operator presses the liftglass push button switch, the When the lock relay contacts close, they connect switch powers the liftglass solenoid on circuit P100.battery voltage from circuit F35 to circuit P2. Circuit Circuit Z1 provides ground for the solenoid.P2 then supplies battery voltage to the power doorlock motors to LOCK the doors and the liftgate lock. HELPFUL INFORMATION When the power doors LOCK, ground for the motors • When the ignition switch is in RUN position, itis on circuit P34 through the normally closed contacts in connects circuit A2 from fuse 13 in the PDC to circuitthe door unlock relay to ground on circuit Z1. A22. Circuit A22 connects to the fuse block and pow- ers circuit F83 through the fuse in cavity 19.UNLOCK RELAY • Circuit A7 from fuse 14 in the PDC feeds circuit Circuit F60 from fuse 8 in the fuse block supplies F35 through fuse 14 in the fuse block.battery voltage to the door lock switches. When ei- • Circuit A4 from fuse 1 in the PDC powers circuitther power door lock switch is put in the UNLOCK F60 through fuse 8 in the fuse block.position, the switch connects circuit F60 to circuitP36. If the operator uses Remote Keyless Entry DIAGRAM INDEX(RKE), the RKE module powers circuit P36. If theVehicle Theft Alarm (VTA) activates, the VTA module Component Pagepowers circuit P36. In either case, circuit P36 sup- Chime Module . . . . . . . . . . . . . . . . . . . . . . . . . .8W-61-6plies power to the coil side of the unlock relay, caus- Door and Liftgate Key Switches . . . . . . . . . . . . . . .8W-61-4ing the relay contacts to close. Circuit Z1 provides Door and Liftgate Lock Motors . . . . . . . . . . . . . . . .8W-61-7ground for the coil side of the unlock relay. Door Lock Switches . . . . . . . . . . . . . . . . . . . . .8W-61-5, 6 When the unlock relay contacts close, they connect Fuse 1 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-61-2, 8battery voltage from circuit F35 to circuit P34. Circuit Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-61-2P34 then supplies battery voltage to the power door lock Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-61-2, 8motors to UNLOCK the doors and the liftgate lock. Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-61-2 When the power doors UNLOCK, ground for the mo- Liftgate Limit Switch . . . . . . . . . . . . . . . . . . . . . .8W-61-8tors is on circuit P2 through the normally closed con- Liftglass Push Button Switch . . . . . . . . . . . . . . . . .8W-61-8tacts in the door lock relay to ground on circuit Z1. Liftglass Release Solenoid . . . . . . . . . . . . . . . . . . .8W-61-8 Lock Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-61-6REMOTE KEYLESS ENTRY (RKE) MODULE Remote Keyless Entry (RKE) Module . . . . . . . .8W-61-2, 3, 4 Circuit F60 from fuse 8 in the fuse block supplies Unlock Relay . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-61-5power to the Remote Keyless Entry (RKE) module. Vehicle Theft Alarm (VTA) Module . . . . . . . . . . . .8W-61-3, 4Circuit F60 is HOT at all times.
  • 61. ZJ 8W-62 POWER MIRRORS 8W - 62 - 1 POWER MIRRORSPOWER MIRRORS For downward adjustments, the polarity is re- A single switch operates both the left and right versed, the switch powers the left mirror UP/DOWNpower mirrors. Each mirror has two motors; a LEFT/ motor on circuit P64. Circuit P79 supplies the groundRIGHT motor and a UP/DOWN motor. The motors path.switch polarity to allow mirror adjustment. Circuit A4 from fuse 1 in the Power Distribution HELPFUL INFORMATIONCenter (PDC) supplies battery voltage to fuse 8 in • Check the 20 amp fuse in cavity F1 of the PDCthe fuse block. Fuse 8 powers the power mirror • Check the 15 amp fuse in cavity 8 of the fuse blockswitch on circuit F60. • Move the switch to its various positions and listen Circuit Z1 connects to the power mirror switch and for the motors to click or try to move. Some move-supplies ground for the power mirror system. ment or clicking indicates a poor connection or a me- chanical problem with a mirror.RIGHT POWER MIRROR OPERATION In the right position, the power mirror switch sup- HEATER ELEMENTSplies power to the right mirror LEFT/RIGHT motor The heated rear window relay powers the heateron circuit P79 when a rightward adjustment is made. elements in power mirrors. When the relay energizes,Circuit P77 provides the ground path the for right- it connects circuit F83 from fuse 19 in the fuse blockward adjustments. to circuit C15. When the operator makes leftward adjustment, po- Circuit C15 powers circuit C16 through fuse 23 inlarity reverses. For leftward adjustments, the switch the fuse block. Circuit C16 powers the heater ele-supplies battery voltage to the right mirror LEFT/RIGHT motor on circuit P77. Circuit P79 supplies ments in the power mirrors. Circuit Z1 providesground for leftward adjustments. ground for the power mirror heater elements. During upward adjustments, the switch supplies HELPFUL INFORMATIONvoltage to the right mirror UP/DOWN motor on cir- • Circuit A2 from fuse 13 in the Power Distributioncuit P79. Circuit P78 supplies ground during upward Center (PDC) connects to circuit A22 when the igni-adjustments. For downward adjustments, the polarity is re- tion switch is in the RUN position. Circuit A22 pow-versed, the switch powers the right mirror UP/ ers F83 through fuse 19 in the fuse block.DOWN motor on circuit P78. Circuit P79 supplies theground path. DIAGRAM INDEXLEFT POWER MIRROR OPERATION Component Page In the left position, the power mirror switch sup- Circuit Breaker (Fuse Block Cavity 28) . . . . . . . . . . .8W-62-4plies power to the left mirror LEFT/RIGHT motor on Fuse 1 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-62-2circuit P79 when a rightward adjustment is made. Fuse 8 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . . .8W-62-2Circuit P75 provides the ground path the for right- Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-62-4ward adjustments. Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-62-2, 4 When the operator makes leftward adjustment, po- Fuse 19 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-62-4larity reverses. For leftward adjustments, the switch Fuse 23 (Fuse Block) . . . . . . . . . . . . . . . . . . . . . .8W-62-5supplies battery voltage to the left mirror LEFT/ Heated Rear Window Relay . . . . . . . . . . . . . . . . . .8W-62-4RIGHT motor on circuit P75. Circuit P79 supplies Heated Rear Window Switch . . . . . . . . . . . . . . . . .8W-62-5ground for leftward adjustments. Power Mirror Heater Grids . . . . . . . . . . . . . . . . . .8W-62-5 During upward adjustments, the switch supplies Power Mirror Motors . . . . . . . . . . . . . . . . . . . . . .8W-62-3voltage to the left mirror UP/DOWN motor on circuit Power Mirror Switch . . . . . . . . . . . . . . . . . . . . . .8W-62-2P79. Circuit P64 supplies ground during upward ad-justments.
  • 62. ZJ 8W-63 POWER SEAT 8W - 63 - 1 POWER SEAT INDEX page pageDiagram Index . . . . . . . . . . . . . . . . . . . . . . . ........... 2 General Information . . . . . . . . . . . . . . . . . . . ........... 1Driver’s Seat . . . . . . . . . . . . . . . . . . . . . . . . ........... 1 Passenger’s Seat . . . . . . . . . . . . . . . . . . . . ........... 1GENERAL INFORMATION When the operator selects the SEAT UP function The power seat system is protected by a 30 amp power is passed on the F35 circuit through the closedcircuit breaker located in cavity 25 of the fuse block. contacts in the switch to the P11 and P19 circuits.This circuit breaker is HOT at all times and feeds The P11 circuit connects to the rear UP/DOWN mo-circuit F35. Circuit A7 is the power supply for the tor, and P19 connects to the front UP/DOWN motor.circuit breaker. Ground is provided on the P13 and P21 circuits back The A7 circuit originates in the Power Distribution to the switch. A ground BUS bar internal to theCenter (PDC) and is protected by a 40 amp fuse lo- switch then connects to the Z1 circuit.cated in cavity 14. For SEAT DOWN function the circuits are re- Circuit F35 is the feed for the switches and the versed. P13 and P21 circuits are the feeds and P11seat motors from the circuit breaker. A BUS bar in- and P19 are the grounds.ternal to the switches feeds all the contacts. Ground-ing for the seats is provided on circuit Z1. PASSENGER’S SEAT When the operator selects the FRONT VERTICAL The motors located under the seat are protected by UP function power is passed on the F35 circuita circuit breaker wired in with the motors. Each mo- through the closed contacts in the switch to the P18tor has its own circuit breaker. circuit. The P18 circuit connects to the motor. Ground is provided on the P20 circuit back to theDRIVER’S SEAT switch. A ground BUS bar internal to the switch then When the operator selects the FRONT VERTICAL connects to the Z1 circuit.UP function power is passed on the F35 circuit For FRONT VERTICAL DOWN function the cir-through the closed contacts in the switch to the P19 cuits are reversed. P20 is the feed and P18 is thecircuit. The P19 circuit connects to the motor. ground.Ground is provided on the P21 circuit back to the When the operator selects the SEAT FORWARDswitch. A ground BUS bar internal to the switch then function power is passed on the F35 circuit throughconnects to the Z1 circuit. the closed contacts in the switch to the P14 circuit. For FRONT VERTICAL DOWN function the cir- The P14 circuit connects to the motor. Ground is pro-cuits are reversed. P21 is the feed and P19 is the vided on the P16 circuit back to the switch. A groundground. BUS bar internal to the switch then connects to the When the operator selects the SEAT FORWARD Z1 circuit.function power is passed on the F35 circuit through For SEAT REARWARD function the circuits are re-the closed contacts in the switch to the P15 circuit. versed. P16 is the feed and P14 is the ground.The P15 circuit connects to the motor. Ground is pro- When the operator selects the REAR VERTICALvided on the P17 circuit back to the switch. A ground UP function power is passed on the F35 circuitBUS bar internal to the switch then connects to the through the closed contacts in the switch to the P10Z1 circuit. circuit. The P10 circuit connects to the motor. For SEAT REARWARD function the circuits are re- Ground is provided on the P12 circuit back to theversed. P17 is the feed and P15 is the ground. switch. A ground BUS bar internal to the switch then When the operator selects the REAR VERTICAL connects to the Z1 circuit.UP function power is passed on the F35 circuit For REAR VERTICAL DOWN function the circuitsthrough the closed contacts in the switch to the P11 are reversed. P12 is the feed and P10 is the ground.circuit. The P11 circuit connects to the motor. Ground When the operator selects the SEAT UP functionis provided on the P13 circuit back to the switch. A power is passed on the F35 circuit through the closedground BUS bar internal to the switch then connects contacts in the switch to the P10 and P18 circuits.to the Z1 circuit. The P10 circuit connects to the rear UP/DOWN mo- For REAR VERTICAL DOWN function the circuits tor, and P18 connects to the front UP/DOWN motor.are reversed. P13 is the feed and P11 is the ground. Ground is provided on the P12 and P20 circuits back
  • 63. 8W - 63 - 2 8W-63 POWER SEAT ZJto the switch. A ground BUS bar internal to the DIAGRAM INDEXswitch then connects to the Z1 circuit. For SEAT DOWN function the circuits are re- Component Pageversed. P12 and P20 circuits are the feeds and P10 Circuit Breaker (Fuse Block Cavity 25) . . . . . . . . .8W-63-3, 4and P18 are the grounds. Drivers Power Seat Motors . . . . . . . . . . . . . . . . . .8W-63-3 Drivers Power Seat Switch . . . . . . . . . . . . . . . . . .8W-63-3HELPFUL INFORMATION Fuse 1 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-63-3, 4• Check the 25 amp circuit breaker in located in Fuse 14 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-63-3, 4cavity 25 of the fuse block Passengers Power Seat Motors . . . . . . . . . . . . . . .8W-63-3• Check the 40 amp fuse located in cavity 14 of the Passengers Power Seat Switch . . . . . . . . . . . . . . . .8W-63-3PDC
  • 64. ZJ 8W-64 POWER SUNROOF 8W - 64 - 1 POWER SUNROOFPOWER SUNROOF closed contacts in the switch to circuit Q42. Circuit The optional power sunroof is supplied power on Q42 connects between the switch and the controlcircuit F81. This circuit is HOT in the RUN position module.only and protected by a 30 amp circuit breaker lo- The control module then activates the motor andcated in cavity 26 of the fuse block. Power for the cir- moves the sunroof to the desired position. A positioncuit breaker is supplied on circuit A22 from the sensor is used to prevent the sunroof from beingignition switch. Power for the A22 circuit is supplied moved to far in any one direction. When the sensorby circuit A2. This circuit is protected by a 60 amp detects the roof is at the end of its travel it sends afuse located in cavity 13 of the Power Distribution signal to the control module and voltage is shut off toCenter (PDC). the motor. Circuit F81 is spliced in the sunroof wiring harnessand supplies voltage to the sunroof switch, and the HELPFUL INFORMATIONsunroof control module. • Check the 60 amp fuse located in cavity 13 of the Ground for the sunroof system is provided on cir- PDCcuit Z1. • Check the 30 amp circuit breaker located in cavity When the operator selects the OPEN function, volt- 26 of the fuse blockage is provided on the F81 circuit through the closedcontacts in the switch to circuit Q41. Circuit Q41 DIAGRAM INDEXconnects between the switch and the control module. The control module then activates the motor and Component Pagemoves the sunroof to the desired position. A position Circuit Breaker (Fuse Block Cavity 26) . . . . . . . . . . .8W-64-2sensor is used to prevent the sunroof from being Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . .8W-64-2moved to far in any one direction. When the sensor Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-64-2detects the roof is at the end of its travel it sends a Position Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-64-3signal to the control module and voltage is shut off to Sliding Roof Motor . . . . . . . . . . . . . . . . . . . . . . .8W-64-3the motor. Sunroof Control Module . . . . . . . . . . . . . . . . . .8W-64-2, 3 When the operator selects the CLOSE function, Sunroof Switch . . . . . . . . . . . . . . . . . . . . . . . . . .8W-64-2voltage is provided on the F81 circuit through the
  • 65. ZJ 8W-70 SPLICE INFORMATION 8W - 70 - 1 SPLICE INFORMATIONGENERAL INFORMATION the systems they affect are referenced. For viewing This section identifies all splices in the wiring dia- the location of each splice in the vehicle, refer to Sec-grams. It also shows the splices in their entirety. All tion 8W-95.circuits that are part of the splices are shown, andSPLICE INDEXComponent Page Component PageS100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-2 S220 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-19S101 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-2 S221 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-20S102 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-3 S222 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-20S103 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-3 S223 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-20S104 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-4 S224 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-21S105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-4 S225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-21S106 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-4 S226 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-21S107 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-5 S300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-22S108 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-5 S301 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-22S109 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-5 S302 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-22S110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-6 S303 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-23S111 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-6 S304 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-23S112 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-6 S305 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-23S113 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-7 S306 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-23S114 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-7 S307 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-24S115 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-7 S308 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-24S116 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-8 S309 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-25S117 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-8 S310 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-25S118 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-8 S311 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-25S119 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-9 S312 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-26S120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-9 S313 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-26S121 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-9 S314 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-26S122 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-10 S315 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-27S123 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-10 S316 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-27S124 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-10 S317 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-27S125 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-10 S318 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-28S200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-11 S319 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-28S201 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-11 S320 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-28S202 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-11 S321 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-29S203 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-12 S322 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-29S204 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-13 S323 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-29S205 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-13 S400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-30S206 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-14 S401 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-30S207 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-14 S402 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-30S208 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-14 S403 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-31S209 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-15 S404 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-31S210 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-15 S405 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-31S211 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-15 S406 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-32S212 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-16 S407 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-32S213 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-16 S408 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-32S214 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-17 S409 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-32S215 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-17 S410 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-33S216 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-18 S411 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-33S217 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-18 S412 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-33S218 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-19 S413 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-33S219 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70-19
  • 66. 1995 Grand CherokeePublication No, 81-370-5147TSB 26-08-95 October, 1995
  • 67. 1995 Grand CherokeePublication No. 81-370-5147TSB 26-08-95 October, 1995
  • 68. 1995 Grand CherokeePublication No. 81-370-5147TSB 26-08-95 October, 1995
  • 69. 1995 Grand CherokeePublication No. 81-370-5147TSB 26-01-96 January, 1996
  • 70. ZJ 8W-80 CONNECTOR PIN OUTS 8W - 80 - 1 CONNECTOR PIN OUTSGENERAL INFORMATION circuit occupies. Individual connector numbers are The pages referenced in this section show the con- referenced on diagram pages throughout Group 8W.nector, the circuits in the connector, and the pin thatCONNECTOR LOCATIONSComponent Page Component PageC100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-3 C159 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-19C101 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-3 C160 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-19C102 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-3 C161 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-19C103 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-3 C162 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-20C104 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-4 C163 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-20C105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-5 C164 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-20C106 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-5 C165 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-21C107 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-5 C166 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-21C108 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-5 C167 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-22C109 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-5 C168 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-22C110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-6 C169 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-23C111 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-6 C170 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-23C112 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-6 C171 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-23C113 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-6 C172 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-23C114 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-6 C173 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-23C115 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-7 C174 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-24C116 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-7 C175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-24C117 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-7 C176 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-24C118 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-7 C177 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-24C119 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-8 C178 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-25C120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-8 C179 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-25C121 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-8 C180 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-25C122 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-8 C181 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-25C123 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-8 C182 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-25C124 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-9 C200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-26C125 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-9 C201 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-26C126 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-9 C202 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-27C127 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-9 C203 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-27C128 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-9 C204 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-28C129 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-10 C205 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-28C130 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-10 C206 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-29C131 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-10 C207 . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-30, 31, 32C132 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-10 C208 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-32C133 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-11 C209 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-32C134 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-11 C210 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-33C135 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-11 C211 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-33C136 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-11 C212 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-33C137 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-12 C213 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-34C138 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-12 C214 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-34C139 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-12 C215 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-34C140 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-12 C216 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-34C141 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-13, 14 C217 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-35C142 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-15 C218 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-35C143 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-15 C219 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-35C144 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-16 C220 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-36C145 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-16 C221 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-36C146 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-16 C222 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-37C147 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-16 C223 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-38C148 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-17 C224 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-38C149 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-17 C225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-39C150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-17 C226 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-39C151 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-17 C227 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-40C152 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-17 C228 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-40C153 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-18 C229 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-40C154 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-18 C230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-40C155 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-18 C231 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-41C156 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-18 C232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-41C157 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-18 C233 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-42C158 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-19 C234 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-43
  • 71. 8W - 80 - 2 8W-80 CONNECTOR PIN OUTS ZJComponent Page Component PageC235 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-43 C349 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-64C236 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-43 C350 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-64C237 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-43 C351 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-65C238 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-43 C352 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-65C239 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-44 C353 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-66C240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-44 C354 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-66C241 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-45 C355 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-66C242 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-45 C356 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-67C243 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-45 C357 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-67C244 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-45 C358 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-67C245 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-46 C359 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-67C246 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-46 C360 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-67C247 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-47 C361 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-68C248 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-47 C362 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-68C249 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-47 C363 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-68C250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-47, 48 C364 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-68C251 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-48 C365 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-68C252 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-48 C366 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-69C253 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-49 C367 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-69C254 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-49 C368 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-69C255 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-49 C369 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-69C256 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-49 C370 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-69C300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-50 C371 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-70C301 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-50 C372 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-70C302 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-51 C373 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-70C303 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-51 C374 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-71C304 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-51 C375 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-71C305 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-51 C376 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-71C306 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-51 C377 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-71C307 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-52 C378 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-71C308 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-52 C379 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-72C309 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-52 C380 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-72C310 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-52 C381 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-72C311 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-53 C400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-72C312 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-53 C401 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-72C313 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-53 C402 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-73C314 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-53 C403 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-73C315 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-53 C404 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-73C316 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-54, 55 C405 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-73C317 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-55 C406 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-73C318 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-55 C407 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-74C319 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-56 C408 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-74C320 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-56 C409 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-74C321 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-56 C410 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-74C322 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-56 C411 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-74C323 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-57 C412 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-75C324 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-57 C413 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-75C325 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-57 C414 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-75C326 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-57 C415 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-76C327 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-57 C416 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-76C328 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-58 C417 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-76C329 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-58 C418 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-76C330 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-58 C419 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-76C331 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-58 C420 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-77C332 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-59 C421 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-77C333 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-59 C422 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-77C334 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-60 C423 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-77C335 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-60 C424 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-78C336 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-61 C425 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-78C337 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-61 C426 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-78C338 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-61 C427 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-78C339 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-61 C428 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-78C340 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-62 C429 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-79C341 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-62 C430 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-79C342 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-62 C431 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-79C343 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-62 C432 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-79C344 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-63 C433 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-79C345 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-63 C434 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-80C346 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-63C347 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-63C348 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-80-63
  • 72. 1995 Grand CherokeePublication No. 81-370-5147TSB 26-08-95 October, 1995
  • 73. 1995 Grand CherokeePublication No. 81-370-5147TSB 26-01-96 January, 1996
  • 74. 1995 Grand CherokeePublication No. 81-370-5147TSB 26-08-95 October, 1995
  • 75. 1995 Grand CherokeePublication No. 81-370-5147TSB 26-08-95 October, 1995
  • 76. 1995 Grand CherokeePublication No. 81-370-5147TSB 26-08-95 October, 1995
  • 77. 1995 Grand CherokeePublication No. 81-370-5147TSB 26-08-95 October, 1995
  • 78. 1995 Grand CherokeePublication No. 81-370-5147TSB 26-01-96 January, 1996
  • 79. ZJ 8W-90 CONNECTOR LOCATIONS 8W - 90 - 1 CONNECTOR LOCATIONSGENERAL INFORMATION nector index is provided. Use the wiring diagrams in This section provides illustrations identifying com- each section for connector number identification. Re-ponent and connector locations in the vehicle. A con- fer to the index for the proper figure number.CONNECTOR LOCATIONSConnector # ColorLocation Fig. Connector # Color Location Fig.C100 . . . . . . BK . . . Below Left Headlamp Opening . . . . .2 C137 . . . . . . BK . . . Rear of Intake Manifold (4.0L) . . . . .4C101 . . . . . . BK . . . Below Left Headlamp Opening . . . . .2 C137 . . . . . . BK . . . Below Distributor (5.2L) . . . . . . . . .4C102 . . . . . . BK . . . Left Fender Side Shield C138 . . . . . . BK . . . Near Distributor (4.0L) . . . . . . . . . .4C103 . . . . . . BK . . . Behind Headlamp . . . . . . . . . . . . .1 C138 . . . . . . BK . . . Near Distributor (5.2L) . . . . . . . . . .5C104 . . . . . . BK . . . Left Fender Side Shield . . . . . . . . .2 C139 . . . . . . BK . . . At Distributor (4.0L) . . . . . . . . . . .4C105 . . . . . . BK . . . Left Fender Side Shield C139 . . . . . . BK . . . At Distributor (5.2L) . . . . . . . . . . .5C106 . . . . . . BK . . . On Brake Booster C140 . . . . . . BK . . . Right Side of Dash Panel . . . . . . . .3C107 . . . . . . BK . . . Below Brake Master Cylinder . . . . . .2 C141 . . . . . . BK . . . Right Rear of Dash Panel . . . . . . . .3C108 . . . . . . BK . . . Below Brake Master Cylinder . . . . . .2 C142 . . . . . . BK . . . Right Side of Dash Panel . . . . . . . .3C109 . . . . . . BK . . . Rear of Washer Fluid Reservoir . . . .2 C143 . . . . . . BK . . . On A/C Compressor . . . . . . . . . . .4C110 . . . . . . BK . . . Bottom of Washer Fluid Reservoir . .2 C144 . . . . . . BK . . . Right Fender Side Shield, Below PDCC111 . . . . . . BK . . . Bottom of Washer Fluid Reservoir . .2 C145 . . . . . . BK . . . Right Side of Engine Block (4.0L) . .4C112 . . . . . . BK . . . Center of Dash Panel . . . . . . . . . . .2 C145 . . . . . . BK . . . Right Front of Engine (5.2L) . . . . . .5C113 . . . . . . BK . . . Top of Washer Fluid Reservoir . . . . .2 C146 . . . . . . BK . . . Rear of Generator (4.0L) . . . . . . . .4C114 . . . . . . BK . . . Left Kick Panel . . . . . . . . . . . . . . .9 C146 . . . . . . BK . . . Rear of Generator (5.2L) . . . . . . . .5C115 . . . . . . BK . . . Left Kick Panel . . . . . . . . . . . . . . .9 C147 . . . . . . BK . . . At Starter Motor . . . . . . . . . . . . . .4C116 . . . . . . BK . . . Left Kick Panel . . . . . . . . . . . . . . .9 C148 . . . . . . BK . . . Bottom Left of Radiator ClosureC117 . . . . . . BK . . . Left Side of I.P. Panel . . . . . . . . . . . . . . . . . . .3C118 . . . . . . BK . . . Left Side of I.P. C149 . . . . . . BK . . . Behind Headlamp . . . . . . . . . . . . .1C119 . . . . . . BK . . . Below Power Steering Pump (4.0L) .4 C150 . . . . . . BK . . . Behind LensC119 . . . . . . BK . . . In Exhaust Down Pipe (5.2L) C151 . . . . . . BK . . . Bottom Right of Radiator ClosureC120 . . . . . . BK . . . On Thermostat Housing . . . . . . . . .4 Panel . . . . . . . . . . . . . . . . . . 3C121 . . . . . . BK . . . Injector #1 (4.0L) . . . . . . . . . . . . .4 C152 . . . . . . BK . . . Bottom Right of Radiator ClosureC121 . . . . . . BK . . . Injector #1 (5.2L) . . . . . . . . . . . . .5 Panel . . . . . . . . . . . . . . . . . . .3C122 . . . . . . BK . . . Injector #2 (4.0L) . . . . . . . . . . . . .4 C153 . . . . . . BK . . . Bottom Right of Radiator ClosureC122 . . . . . . BK . . . Injector #2 (5.2L) . . . . . . . . . . . . .5 Panel . . . . . . . . . . . . . . . . . . .3C123 . . . . . . BK . . . Injector #3 (4.0L) . . . . . . . . . . . . .4 C154 . . . . . . BK . . . Below Power Distribution Center (PDC) . . . . . . . . . . . . . . . . . . .3C123 . . . . . . BK . . . Injector #3 (5.2L) . . . . . . . . . . . . .5 C155 . . . . . . BK . . . Right Fender Side Shield . . . . . . . .3C124 . . . . . . BK . . . Injector #4 (4.0L) . . . . . . . . . . . . .4 C156 . . . . . . BK . . . Right Fender Side Shield . . . . . . . .3C124 . . . . . . BK . . . Injector #4 (5.2L) . . . . . . . . . . . . .5 C157 . . . . . . BK . . . Right Fender Side Shield . . . . . . . .3C125 . . . . . . BK . . . On Throttle Body (4.0L) . . . . . . . . .4 C158 . . . . . . BK . . . Right Side of Dash Panel . . . . . . . .3C125 . . . . . . BK . . . On Throttle Body (5.2L) . . . . . . . . .5 C159 . . . . . . BK . . . Right Side of Dash Panel . . . . . . .20C126 . . . . . . BK . . . On Throttle Body (4.0L) . . . . . . . . .4 C160 . . . . . . BK . . . Lower Right of I.P., Near HVAC . . .10C126 . . . . . . BK . . . On Throttle Body (5.2L) . . . . . . . . .5 C161 . . . . . . BK . . . Under Floor Console . . . . . . . . . .11C127 . . . . . . BK . . . Rear of Intake Manifold (4.0L) . . . . .4 C162 . . . . . . BK . . . Under Floor Console . . . . . . . . . .11C127 . . . . . . BK . . . Front Right of Intake Manifold (5.2L) .5 C163 . . . . . . BK . . . Under Floor Console . . . . . . . . . .11C128 . . . . . . BK . . . Center of Dash Panel (4.0L Engine) .3 C164 . . . . . . BK . . . Lower Right of I.P.C129 . . . . . . BK . . . Injector #5 (4.0L) . . . . . . . . . . . . .4 C165 . . . . . . BK . . . Lower Right of I.P.C129 . . . . . . BK . . . Injector #5 (5.2L) . . . . . . . . . . . . .5 C166 . . . . . . BK . . . Lower Right of I.P.C130 . . . . . . BK . . . Injector #6 (4.0L) . . . . . . . . . . . . .4 C167 . . . . . . BK . . . Left Side of I.P., Above Brake Pedal .9C130 . . . . . . BK . . . Injector #6 (5.2L) . . . . . . . . . . . . .5 C168 . . . . . . BK . . . Left Side of I.P.C131 . . . . . . BK . . . Bottom Left of I.P. C169 . . . . . . BK . . . Left Side of TransmissionC132 . . . . . . BK . . . Bottom Left of I.P C170 . . . . . . BK . . . Left Side of Transmission . . . . . . . .6C133 . . . . . . BK . . . Left Side of I.P. C171 . . . . . . BK . . . Left Side of Transmission . . . . . . . .6C134 . . . . . . BK . . . Rear of Transmission (2WD) Rear of Transfer Case (4WD) . . . . . . .6 C172 . . . . . . BK . . . Rear of Generator . . . . . . . . . . . . .5C135 . . . . . . BK . . . Right Side of Transmission . . . . . . .6 C173 . . . . . . BK . . . Top of Intake Manifold . . . . . . . . . .5C136 . . . . . . BK . . . Left Side of Transmission . . . . . . . .6 C174 . . . . . . BK . . . Left Fender Side Shield . . . . . . . . .2
  • 80. 8W - 90 - 2 8W-90 CONNECTOR LOCATIONS ZJConnector # Color Location Fig. Connector # Color Location Fig.C175 . . . . . . BK . . . Injector #7 . . . . . . . . . . . . . . . . .5 C249 . . . . . . NAT . . Left Bottom of I.P. . . . . . . . . . . . .7C176 . . . . . . BK . . . Injector #8 . . . . . . . . . . . . . . . . .5 C250 . . . . . . BK . . . On HVAC HousingC177 . . . . . . BK . . . Center Rear of Engine Compartment C251 . . . . . . BK . . . On HVAC HousingC178 . . . . . . BK . . . Right Rear of Engine . . . . . . . . . . .5 C252 . . . . . . BK . . . On HVAC HousingC179 . . . . . . BK . . . Center of Grille Opening . . . . . . . . .1 C253 . . . . . . BK . . . On HVAC HousingC180 . . . . . . BK . . . Right Side of Grille Opening . . . . . .1 C254 . . . . . . BK . . . On HVAC HousingC181 . . . . . . BK . . . On Throttle Body . . . . . . . . . . . . .5 C255 . . . . . . BK . . . On HVAC HousingC182 . . . . . . BK . . . Left Side of Transmission . . . . . . . .6 C256 . . . . . . BK . . . On HVAC HousingC200 . . . . . . BK . . . Lower Right of I.P. . . . . . . . . . . .18 C300 . . . . . . BK . . . Near Left Kick Panel . . . . . . . . . .18C201 . . . . . . GR . . . Lower Right of I.P. . . . . . . . . . . .18 C301 . . . . . . BK . . . Near Left Kick Panel . . . . . . . . . .18C202 . . . . . . RD . . . Lower Right of I.P. . . . . . . . . . . .18 C302 . . . . . . NAT . . In Door Opening . . . . . . . . . . . . .18C203 . . . . . . BK . . . Lower Right of I.P. . . . . . . . . . . .18 C303 . . . . . . YL . . . Left Side of I.P. . . . . . . . . . . . . .12C204 . . . . . . BK . . . Lower Right of I.P. . . . . . . . . . . .18 C304 . . . . . . BK . . . Under Floor Console . . . . . . . . . .11C205 . . . . . . BK . . . Right Bottom of I.P. . . . . . . . . . . .7 C305 . . . . . . BK . . . Under Floor Console . . . . . . . . . .11C206 . . . . . . BK . . . Lower Right of I.P., Near HVAC . . .10 C306 . . . . . . BK . . . Under Floor Console . . . . . . . . . .11C207 . . . . . . BK . . . In Glove Box . . . . . . . . . . . . . . . .7 C307 . . . . . . BK . . . Under Left Front Seat . . . . . . . . . .22C208 . . . . . . BK . . . In Glove Box . . . . . . . . . . . . . . . .8 C308 . . . . . . BK . . . In Left B Pillar . . . . . . . . . . . . . .17C209 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .8 C309 . . . . . . GY . . . In Left B Pillar . . . . . . . . . . . . . .17C210 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .7 C310 . . . . . . BK . . . Under Left Rear Seat . . . . . . . . . .15C211 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .7 C311 . . . . . . BK . . . Under Left Rear Seat . . . . . . . . . .15C212 . . . . . . RD . . . Center of I.P. . . . . . . . . . . . . . . . .7 C312 . . . . . . NAT . . In Left B Pillar . . . . . . . . . . . . . .17C213 . . . . . . BK . . . At HVAC Housing C313 . . . . . . RD . . . Under Left Rear Seat . . . . . . . . . .15C214 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .8 C314 . . . . . . BK . . . Under Left Rear Seat . . . . . . . . . .15C215 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .8 C315 . . . . . . BK . . . Along Left Frame Rail, Near RearC216 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .8 Wheel Well . . . . . . . . . . . . . .15C217 . . . . . . BK . . . Rear of Switch C316 . . . . . . BK . . . Left Rear of Vehicle, NearC218 . . . . . . BK . . . Rear of Switch Liftgate Opening . . . . . . . . . . . .15C219 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .7 C317 . . . . . . GY .. . In Right B Pillar . . . . . . . . . . . . .17C220 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .7 C318 . . . . . . NAT . . In Right B Pillar . . . . . . . . . . . . .17C221 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .7 C319 . . . . . . BK .. . Right Rear Quarter Panel . . . . . . .19C222 . . . . . . BK . . . Rear of Cluster . . . . . . . . . . . . . . .7 C320 . . . . . . BK .. . Left Rear of Vehicle, NearC223 . . . . . . BK . . . Left Side of I.P. . . . . . . . . . . . . . .7 Liftgate Opening . . . . . . . . . . . .15C224 . . . . . . BK . . . Bottom Left of I.P. . . . . . . . . . . . .7 C321 . . . . . . BK . . . Top of Liftgate, Left of CHMSL . . .21C225 . . . . . . NAT . . Left Front of Steering Column . . . .12 C322 . . . . . . BK . . . Top of Liftgate, Left of CHMSL . . .21C226 . . . . . . GY . . . Right Front of Steering Column . . .12 C323 . . . . . . BK . . . Top of Liftgate, Left of CHMSL . . .21C227 . . . . . . BK . . . Bottom Left of I.P. . . . . . . . . . . . .7 C324 . . . . . . BK . . . Top of Liftgate, Right of CHMSL . .21C228 . . . . . . RD . . . Right Front of I.P. . . . . . . . . . . . .12 C325 . . . . . . BK . . . Top of Liftgate, Right of CHMSL . .21C229 . . . . . . BK . . . Left Side of I.P. . . . . . . . . . . . . . .8 C326 . . . . . . GY . . . Top of Liftgate, Right of CHMSL . .21C230 . . . . . . NAT . . Front Bottom of Steering Column . .12 C327 . . . . . . BK . . . Behind Lamp . . . . . . . . . . . . . . .16C231 . . . . . . RD . . . Left Bottom of I.P. . . . . . . . . . . . .7 C328 . . . . . . BK . . . Left Rear of Vehicle, NearC232 . . . . . . BK . . . Top of Brake Pedal . . . . . . . . . . . .9 Liftgate Opening . . . . . . . . . . . .15C233 . . . . . . GY . . . Left Side of I.P. C329 . . . . . . BK ... Under Right Front Seat . . . . . . . . .22C234 . . . . . . BK . . . Left Side of I.P. C330 . . . . . . GY ... In Left B Pillar . . . . . . . . . . . . . . . .C235 . . . . . . BK . . . Left Side of I.P. . . . . . . . . . . . . . .8 C331 . . . . . . BK ... Right Rear Quarter Panel . . . . . . .19C236 . . . . . . BK . . . Bottom Right of I.P. . . . . . . . . . . .10 C332 . . . . . . NAT .. Under Left Rear Seat . . . . . . . . . .15C237 . . . . . . BK . . . Right Inner Fender C333 . . . . . . NAT .. Under Left Rear Seat . . . . . . . . . .15C238 . . . . . . BK . . . Right Side of I.P . . . . . . . . . . . . .7 C334 . . . . . . BK ... In Right Front Door . . . . . . . . . . .18C239 . . . . . . BK . . . Below Glove Box . . . . . . . . . . . . .8 C335 . . . . . . NAT .. In Door Opening . . . . . . . . . . . . .18C240 . . . . . . RD . . . Below Glove box . . . . . . . . . . . . . .8 C336 . . . . . . GY ... At Right Visor Vanity Mirror . . . . .13C241 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .7 C337 . . . . . . BK ... Rear of Day/Night Mirror . . . . . . .13C242 . . . . . . BK . . . Top Center of I.P. . . . . . . . . . . . . .7 C338 . . . . . . GY ... At Left Visor Vanity Mirror . . . . . .13C243 . . . . . . BK . . . Left Side of I.P. . . . . . . . . . . . . . .7 C339 . . . . . . BK ... Behind Overhead Console . . . . . . .13C244 . . . . . . BK . . . Left Side of I.P. . . . . . . . . . . . . . .7 C340 . . . . . . BK ... Behind Overhead Console . . . . . . .13C245 . . . . . . BK . . . Center of I.P. . . . . . . . . . . . . . . . .8 C341 . . . . . . GY ... Behind Lamp . . . . . . . . . . . . . . .14C246 . . . . . . BK . . . Left Side of HVAC Housing C342 . . . . . . BK ... In Right Front Door . . . . . . . . . . .18C247 . . . . . . RD . . . Center of I.P. . . . . . . . . . . . . . . . .7 C343 . . . . . . RD ... In Right Front Door . . . . . . . . . . .18C248 . . . . . . TN . . . Center Bottom of I.P. C344 . . . . . . BK ... In Right Front Door . . . . . . . . . . .18 C345 . . . . . . BK ... In Right Front Door . . . . . . . . . . .18
  • 81. ZJ 8W-90 CONNECTOR LOCATIONS 8W - 90 - 3Connector # Color Location Fig. Connector # Color Location Fig.C346 . . . . . . BK . . . In Right Front Door . . . . . . . . . . .18 C408 . . . . . . BK . . . At LampC347 . . . . . . BK . . . In Right Front Door C409 . . . . . . BK . . . In Liftgate . . . . . . . . . . . . . . . . .20C348 . . . . . . BK . . . In Right Front Door . . . . . . . . . . .18 C410 . . . . . . BK . . . In Liftgate . . . . . . . . . . . . . . . . .20C349 . . . . . . BK . . . Right Rear Quarter Panel . . . . . . .19 C411 . . . . . . BK . . . Under Right Front Seat . . . . . . . . .22C350 . . . . . . BK . . . Right Rear Quarter Panel . . . . . . .19 C412 . . . . . . BK . . . At SwitchC351 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18 C413 . . . . . . BK . . . Under right Front Seat . . . . . . . . .22C352 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18 C414 . . . . . . BK . . . At SwitchC353 . . . . . . RD . . . In Left Front Door . . . . . . . . . . . .18 C415 . . . . . . BK . . . Rear of Fog Lamp . . . . . . . . . . . .1C354 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18 C416 . . . . . . BK . . . Rear of Fog Lamp . . . . . . . . . . . .1C355 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18 C417 . . . . . . BK . . . At Underhood Lamp . . . . . . . . . . .20C356 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18 C418 . . . . . . GY . . . In Right Front Door . . . . . . . . . . .18C357 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18 C419 . . . . . . BK . . . In Right Front Door . . . . . . . . . . .18C358 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18 C420 . . . . . . GY . . . In Left Front Door . . . . . . . . . . . .18C359 . . . . . . BK . . . Top Center of Liftgate . . . . . . . . .21 C421 . . . . . . GN . . . In Left Front Door . . . . . . . . . . . .18C360 . . . . . . BK . . . Center of Liftgate . . . . . . . . . . . .21 C422 . . . . . . BK . . . In Left Front Door . . . . . . . . . . . .18C361 . . . . . . BK . . . In Liftgate C423 . . . . . . BK . . . Right Rear Frame RailC362 . . . . . . BK . . . Bottom Center of Liftgate . . . . . . .21 C424 . . . . . . BK . . . At LampC363 . . . . . . BK . . . Bottom Left of Liftgate . . . . . . . . .21 C425 . . . . . . BK . . . At LampC364 . . . . . . GY . . . Center of Liftgate . . . . . . . . . . . .21 C426 . . . . . . BK . . . At LampC365 . . . . . . BK . . . Center of Liftgate . . . . . . . . . . . .21 C427 . . . . . . BK . . . At LampC366 . . . . . . BK . . . Bottom Center of Liftgate . . . . . . .21 C428 . . . . . . BK . . . At LampC367 . . . . . . BK . . . Bottom Center of Liftgate C428 . . . . . . BK . . . At LampC368 . . . . . . BK . . . Bottom Left of Liftgate . . . . . . . . .21 C429 . . . . . . BK . . . At LampC369 . . . . . . BK . . . On Trailer Hitch . . . . . . . . . . . . .19 C430 . . . . . . BK . . . At LampC370 . . . . . . NAT . . Behind Overhead Console . . . . . . .14 C431 . . . . . . BK . . . At LampC371 . . . . . . BK . . . Rear of Sunroof . . . . . . . . . . . . .14 C432 . . . . . . BK . . . At LampC372 . . . . . . BK . . . Right Rear Quarter Panel . . . . . . .19 C433 . . . . . . BK . . . At LampC373 . . . . . . BK . . . Right Rear Quarter Panel . . . . . . .19 G100 . . . . . . .... . . Left Fender Side Shield . . . . . . . . .2C374 . . . . . . BK . . . In Right Rear Door . . . . . . . . . . .17 G101 . . . . . . .... . . Left Fender Side Shield . . . . . . . . .2C375 . . . . . . BK . . . In Right Rear Door . . . . . . . . . . .17 G102 . . . . . . .... . . Below Coil (4.0L) . . . . . . . . . . . . .4C376 . . . . . . BK . . . In Right Rear Door G102 . . . . . . .... . . On Bracket Near Coil (5.2L) . . . . . .5C377 . . . . . . BK . . . In Right Rear Door G103 . . . . . . .... . . Right Fender Side Shield, NearC378 . . . . . . BK . . . In Left Rear Door . . . . . . . . . . . .17 Battery . . . . . . . . . . . . . . . . . .3C379 . . . . . . BK . . . In Left Rear Door . . . . . . . . . . . .17 G104 . . . . . . . . . . . . Below Coil (4.0L) . . . . . . . . . . . . .4C380 . . . . . . BK . . . In Left Rear Door G104 . . . . . . . . . . . . On Bracket Near Coil (5.2L) . . . . . .5C381 . . . . . . BK . . . In Left Rear Door G105 . . . . . . . . . . . . Right Fender Side Shield, NearC400 . . . . . . BK . . . At Lamp Battery . . . . . . . . . . . . . . . . . .3C401 . . . . . . BK . . . At Lamp G106 . . . . . . . . . . . . Right Fender Side Shield, NearC402 . . . . . . BK . . . At Lamp Battery . . . . . . . . . . . . . . . . . .3C403 . . . . . . BK . . . At Lamp G300 . . . . . . . . . . . . On Floor Pan, Behind left Rear Seat .15C404 . . . . . . BK . . . Left Rear Frame Rail G301 . . . . . . . . . . . . Right Rear Quarter Panel . . . . . . .16C405 . . . . . . BK . . . At LampC406 . . . . . . BK . . . At LampC407 . . . . . . BK . . . At Lamp
  • 82. 8W - 90 - 4 8W-90 CONNECTOR LOCATIONSFig. 1 Front End Lighting Wiring Connectors ZJ
  • 83. ZJ 8W-90 CONNECTOR LOCATIONSFig. 2 Engine Compartment Wiring Connectors—Left Side 8W - 90 - 5
  • 84. 8W - 90 - 6 8W-90 CONNECTOR LOCATIONSFig. 3 Engine Compartment Wiring Connectors—Right Side ZJ
  • 85. ZJ 8W-90 CONNECTOR LOCATIONS 8W - 90 - 7 Fig. 4 Engine Wiring Connectors—4.0L
  • 86. 8W - 90 - 8 8W-90 CONNECTOR LOCATIONS ZJ Fig. 5 Engine Wiring Connectors—5.2L
  • 87. ZJ 8W-90 CONNECTOR LOCATIONS 8W - 90 - 9 Fig. 6 Transmission Wiring Connectors
  • 88. 8W - 90 - 10 8W-90 CONNECTOR LOCATIONSFig. 7 Instrument Panel Wiring Connectors ZJ
  • 89. ZJ 8W-90 CONNECTOR LOCATIONSFig. 8 Instrument Panel Wiring Connectors 8W - 90 - 11
  • 90. 8W - 90 - 12 8W-90 CONNECTOR LOCATIONSFig. 9 Instrument Panel Wiring Connectors ZJ
  • 91. ZJ 8W-90 CONNECTOR LOCATIONS 8W - 90 - 13 Fig. 10 HVAC Housing Fig. 11 Floor Console
  • 92. 8W - 90 - 14 8W-90 CONNECTOR LOCATIONSFig. 12 Steering Column Wiring Connectors ZJ
  • 93. ZJ 8W-90 CONNECTOR LOCATIONS 8W - 90 - 15 Fig. 13 Visor Vanity Mirrors
  • 94. 8W - 90 - 16 8W-90 CONNECTOR LOCATIONSFig. 14 Overhead Console Wiring Connectors ZJ
  • 95. ZJ 8W-90 CONNECTOR LOCATIONS 8W - 90 - 17 Fig. 15 Left Body Wiring Connectors
  • 96. 8W - 90 - 18 8W-90 CONNECTOR LOCATIONS ZJ Fig. 16 Right Body Wiring Connectors Fig. 17 Rear Door Wiring Connectors
  • 97. ZJ 8W-90 CONNECTOR LOCATIONS 8W - 90 - 19 Fig. 18 Front Door Wiring Connectors
  • 98. 8W - 90 - 20 8W-90 CONNECTOR LOCATIONS ZJ Fig. 19 Trailer Tow Harness Wiring Connections Fig. 20 Underhood Lamp
  • 99. ZJ 8W-90 CONNECTOR LOCATIONS 8W - 90 - 21 Fig. 21 Liftgate Wiring Connectors
  • 100. 8W - 90 - 22 8W-90 CONNECTOR LOCATIONS ZJ Fig. 22 Power Seat Wiring Connectors
  • 101. ZJ 8W-95 SPLICE LOCATIONS 8W - 95 - 1 SPLICE LOCATIONSSPLICE LOCATIONSSplice SpliceNumber Locations Fig. Number Locations Fig.S100 . . . . . . In T/O for ABS Control Module . . . . . . . . . .1 S213 . . . . . . Before Rear Wiper Switch T/O . . . . . . . . . . .6S101 . . . . . . Before T/O for Washer Pump Motor . . . . . . .1 S214 . . . . . . After Radio T/O’s . . . . . . . . . . . . . . . . . . .6S102 . . . . . . Before Grommet to I.P. (4.0L) . . . . . . . . . . .2 S215 . . . . . . After Radio T/O’s . . . . . . . . . . . . . . . . . . .6S102 . . . . . . Between T/O for Injectors No. 6 and S216 . . . . . . After Radio T/O’s . . . . . . . . . . . . . . . . . . .6 No. 4 (5.2L) . . . . . . . . . . . . . . . . . . . . .3 S217 . . . . . . Before T/O for Left I.P. Speaker . . . . . . . . . .6S103 . . . . . . Rear of Engine (4.0L) . . . . . . . . . . . . . . . .2 S218 . . . . . . After T/O for Left Courtesy Lamp . . . . . . . . .6S103 . . . . . . Before T/O for Injector No. 3 . . . . . . . . . . .3 S219 . . . . . . Right Side of I.P., Before Glove Box LampS104 . . . . . . Rear of Engine (4.0L) . . . . . . . . . . . . . . . .2 T/O . . . . . . . . . . . . . . . . . . . . . . . . . . .6S104 . . . . . . After T/O for PCM . . . . . . . . . . . . . . . . . .3 S220 . . . . . . In T/O for Power Mirror Switch . . . . . . . . . .6S105 . . . . . . After T/O for PCM (4.0L) . . . . . . . . . . . . . .2 S221 . . . . . . In HVAC Harness . . . . . . . . . . . . . . . . . . .7S105 . . . . . . After T/O for PCM (5.2L) . . . . . . . . . . . . . .3 S222 . . . . . . In HVAC Harness . . . . . . . . . . . . . . . . . . .7S106 . . . . . . After T/O for PCM . . . . . . . . . . . . . . . . . .1 S223 . . . . . . In HVAC Harness . . . . . . . . . . . . . . . . . . .7S107 . . . . . . Between T/O for A/C High Pressure Switch S224 . . . . . . In HVAC Harness . . . . . . . . . . . . . . . . . . .7 and Engine Harness . . . . . . . . . . . . . . . .1 S225 . . . . . . In HVAC Harness . . . . . . . . . . . . . . . . . . .7S108 . . . . . . Before T/O’s for Grounds G105 and G106 . . .1 S226 . . . . . . In HVAC Harness . . . . . . . . . . . . . . . . . . .7S109 . . . . . . Before T/O’s for Grounds G105 and G106 . . .1 S300 . . . . . . After Left Front Door T/O’s . . . . . . . . . . . . .9S110 . . . . . . Before T/O’s for PDC . . . . . . . . . . . . . . . . .1 S301 . . . . . . Before Floor Console Illumination Lamp T/O . .9S111 . . . . . . In T/O’s for Generator Connectors . . . . . . . .1 S302 . . . . . . After Floor Console Illumintiaon Lamp T/O . . .9S112 . . . . . . In T/O’s for Generator Connectors . . . . . . . .1 S303 . . . . . . After Floor Console Illumination Lamp T/O . . .9S113 . . . . . . In T/O’s for Generator Connectors . . . . . . . .1 S304 . . . . . . After T/O’s for Left Front Door . . . . . . . . . .9S114 . . . . . . After T/O for PDC . . . . . . . . . . . . . . . . . . .1 S305 . . . . . . After T/O’s for Left Front Door . . . . . . . . . .9S115 . . . . . . Before T/O for Underhood Lamp . . . . . . . . .1 S306 . . . . . . In T/O for Right Body Connector . . . . . . . . .9S116 . . . . . . Before T/O for Underhood Lamp . . . . . . . . .1 S307 . . . . . . After T/O for Right Tail Lamp Harness . . . . .10S117 . . . . . . After T/O for Underhood Lamp . . . . . . . . . .1 S308 . . . . . . Between Right Tail Lamp Harness T/OS118 . . . . . . Before Crankshaft Position Sensor T/O (4.OL) .2 and Liftgate T/O . . . . . . . . . . . . . . . . . .10S118 . . . . . . Before T/O for Oxygen Sensor (5.2L) . . . . . .3 S309 . . . . . . Before Power Seat T/O . . . . . . . . . . . . . . .10S119 . . . . . . In T/O for PCM Connector . . . . . . . . . . . . .1 S310 . . . . . . In T/O for Left Vanity Visor Mirror . . . . . . . .8S120 . . . . . . In T/O for PCM Connector . . . . . . . . . . . . .1 S311 . . . . . . In T/O for Left Vanity Visor Mirror . . . . . . . .8S121 . . . . . . Before T/O to TPS and MAP (4.0L) . . . . . . .2 S312 . . . . . . After Day/Night Mirror T/O . . . . . . . . . . . . .8S121 . . . . . . Before T/O’s for Injectors No. 7 and No. 5 . .3 S313 . . . . . . In T/O for Left Lighted Visor Mirror . . . . . . .8S122 . . . . . . After T/O for PCM . . . . . . . . . . . . . . . . . .2 S314 . . . . . . Before T/O for Right Front Door JambS122 . . . . . . After T/O for PCM . . . . . . . . . . . . . . . . . .3 Switch . . . . . . . . . . . . . . . . . . . . . . . . .8S123 . . . . . . Near T/O for Crankshaft Position Sensor . . . .3 S315 . . . . . . Before Power Mirror T/O . . . . . . . . . . . . .11S124 . . . . . . Before Branch to Crankshaft Position Sensor S316 . . . . . . After Heated Rear Window T/O . . . . . . . . .13 T/O (4.OL) . . . . . . . . . . . . . . . . . . . . . .2 S317 . . . . . . Between Liftgate Ajar Switch T/O and RearS124 . . . . . . Before T/O for Heated Oxygen Sensor (5.2L) .3 Wiper Motor T/O . . . . . . . . . . . . . . . . .13S125 . . . . . . Between T/O’s for Injectors No. 5 and No. 6 .2 S318 . . . . . . Between Liftgate Ajar Switch T/O and RearS126 . . . . . . After Grommet, Near T/O for ABS Data Wiper Motor T/O . . . . . . . . . . . . . . . . .13 Link Connector . . . . . . . . . . . . . . . . . . .5 S319 . . . . . . Before Stop Lamp Relay T/O and Left TurnS200 . . . . . . Right Side of I.P. . . . . . . . . . . . . . . . . . . .6 Signal Relay T/O . . . . . . . . . . . . . . . . .12S201 . . . . . . Right Side of I.P. . . . . . . . . . . . . . . . . . . .6 S320 . . . . . . Between Stop Lamp Relay T/O and BodyS202 . . . . . . Right Side of I.P. . . . . . . . . . . . . . . . . . . .6 Harness Connector T/O . . . . . . . . . . . . .12S203 . . . . . . Right Side of I.P. . . . . . . . . . . . . . . . . . . .6 S321 . . . . . . After T/O for Day/Night Mirror . . . . . . . . . . .8S204 . . . . . . Right Side of I.P. . . . . . . . . . . . . . . . . . . .6 S322 . . . . . . Before Right Liftgate Connector . . . . . . . . .13S205 . . . . . . Right Side of I.P., Before Glove Box Lamp T/O .6 S323 . . . . . . Before T/O for Power Mirror . . . . . . . . . . .11S206 . . . . . . Right Side of I.P., Before Glove Box Lamp T/O .6 S400 . . . . . . Between Liftgate Connector and LicenseS207 . . . . . . After T/O for Glove Box Lamp . . . . . . . . . . .6 Plate Lamp T/o’s . . . . . . . . . . . . . . . . .13S208 . . . . . . In Branch to Vehicle Information Center (VIC) .6 S401 . . . . . . Between Body Connector and Grommet . . . .14S209 . . . . . . Before Vehicle Information Center (VIC) T/O’s .6 S402 . . . . . . Between Body Connector and Grommet . . . .14S210 . . . . . . In Branch to Vehicle Information Center (VIC) .6 S403 . . . . . . Between Body Connector and Grommet . . . .14S211 . . . . . . Center of I.P., After Cigar Lighter Lamp T/O . .6 S404 . . . . . . Between Body Connector and Grommet . . . .14S212 . . . . . . Center of I.P. . . . . . . . . . . . . . . . . . . . . . .6 S405 . . . . . . Between Liftgate Harness Connector and License Plate Lamp T/O’s . . . . . . . . . . .13
  • 102. 8W - 95 - 2 8W-95 SPLICE LOCATIONS ZJSplice SpliceNumber Locations Fig. Number Locations Fig.S406 . . . . . . Center of Grille Opening . . . . . . . . . . . . . . .4 S410 . . . . . . Near Left Headlamp Connector . . . . . . . . . .4S407 . . . . . . Center of Grille Opening . . . . . . . . . . . . . . .4 S411 . . . . . . Near Right Headlamp Connector . . . . . . . . . .4S408 . . . . . . Near Left Headlamp Connector . . . . . . . . . .4 S412 . . . . . . Near Right Headlamp Connector . . . . . . . . . .4S409 . . . . . . Near Left Headlamp Connector . . . . . . . . . .4 S413 . . . . . . Near Right Headlamp Connector . . . . . . . . . .4
  • 103. ZJ 8W-95 SPLICE LOCATIONS 8W - 95 - 3 Fig. 1 Engine Compartment Splices
  • 104. 8W - 95 - 4 8W-95 SPLICE LOCATIONS ZJ Fig. 2 Engine Splices— 4.0L Engine
  • 105. ZJ 8W-95 SPLICE LOCATIONS 8W - 95 - 5 Fig. 3 Engine Splices—5.2L Engine
  • 106. 8W - 95 - 6 8W-95 SPLICE LOCATIONS ZJ Fig. 4 Front End Lighting Splices Fig. 5 Transmission Control Module
  • 107. ZJ 8W-95 SPLICE LOCATIONSFig. 6 Instrument Panel Wiring Splices 8W - 95 - 7
  • 108. 8W - 95 - 8 8W-95 SPLICE LOCATIONS ZJ Fig. 7 HVAC Harness Splices Fig. 8 Roof Splices
  • 109. ZJ 8W-95 SPLICE LOCATIONS 8W - 95 - 9 Fig. 9 Left Body Splices Fig. 10 Right Body Splices
  • 110. 8W - 95 - 10 8W-95 SPLICE LOCATIONS ZJ Fig. 11 Door Splices Fig. 12 Trailer Tow Harness Splices
  • 111. ZJ 8W-95 SPLICE LOCATIONS 8W - 95 - 11 Fig. 13 Liftgate Splices Fig. 14 Tail Lamp Harness Splices