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Exj 8 w

  1. 1. XJ WIRING DIAGRAMS 8W - 1 WIRING DIAGRAMS CONTENTS page page8W-01 GENERAL INFORMATION . . . . . . . 8W-01-1 8W-44 INTERIOR LIGHTING . . . . . . . . . . . 8W-44-18W-02 COMPONENT INDEX . . . . . . . . . . . 8W-02-1 8W-47 AUDIO SYSTEM . . . . . . . . . . . . . . 8W-47-18W-10 POWER DISTRIBUTION . . . . . . . . 8W-10-1 8W-48 REAR WINDOW DEFOGGER . . . . . 8W-48-18W-12 JUNCTION BLOCK . . . . . . . . . . . . . 8W-12-1 8W-49 OVERHEAD CONSOLE . . . . . . . . . . 8W-49-18W-15 GROUND DISTRIBUTION . . . . . . . 8W-15-1 8W-50 FRONT LIGHTING . . . . . . . . . . . . . 8W-50-18W-20 CHARGING SYSTEM . . . . . . . . . . . 8W-20-1 8W-51 REAR LIGHTING . . . . . . . . . . . . . . 8W-51-18W-21 STARTING SYSTEM . . . . . . . . . . . 8W-21-1 8W-52 TURN SIGNALS . . . . . . . . . . . . . . . 8W-52-18W-30 FUEL/IGNITION SYSTEMS . . . . . . 8W-30-1 8W-53 WIPERS . . . . . . . . . . . . . . . . . . . . . 8W-53-18W-31 TRANSMISSION CONTROL 8W-54 TRAILER TOW . . . . . . . . . . . . . . . . 8W-54-1 SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . 8W-31-1 8W-60 POWER WINDOWS . . . . . . . . . . . . 8W-60-18W-33 VEHICLE SPEED CONTROL . . . . . 8W-33-1 8W-61 POWER DOOR LOCKS . . . . . . . . . 8W-61-18W-35 ALL-WHEEL ANTI-LOCK BRAKES . 8W-35-1 8W-62 POWER MIRRORS . . . . . . . . . . . . 8W-62-18W-39 VEHICLE THEFT SECURITY 8W-63 POWER SEAT . . . . . . . . . . . . . . . . 8W-63-1 SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . 8W-39-1 8W-70 SPLICE INFORMATION . . . . . . . . . 8W-70-18W-40 INSTRUMENT CLUSTER . . . . . . . . 8W-40-1 8W-80 CONNECTOR PIN-OUTS . . . . . . . . 8W-80-18W-41 HORN/CIGAR LIGHTER . . . . . . . . . 8W-41-1 8W-90 CONNECTOR LOCATIONS . . . . . . . 8W-90-18W-42 AIR CONDITIONING/HEATER . . . . 8W-42-1 8W-95 SPLICE LOCATIONS . . . . . . . . . . . 8W-95-18W-43 AIRBAG SYSTEM . . . . . . . . . . . . . 8W-43-1
  2. 2. XJ 8W - 01 GENERAL INFORMATION 8W - 01 - 1 8W-01 GENERAL INFORMATION INDEX page pageDESCRIPTION AND OPERATION INTERMITTENT AND POOR CONNECTIONS . . . . 5 SYMBOLS . . . . . . . . . . . . . . . . . . . . . ......... 3 TROUBLESHOOTING TESTS . . . . . . . . . . . . . . . . 6 ELECTROSTATIC DISCHARGE (ESD) TROUBLESHOOTING WIRING PROBLEMS . . . . . 6 SENSITIVE DEVICES . . . . . . . . . . . . . . . . . . . . 5 SERVICE PROCEDURES HOW TO USE THIS GROUP . . . . . . . . . . . . . . . . 1 WIRING REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . 7 SECTION IDENTIFICATION . . . . . . . . . . . . . . . . . 1 TERMINAL/CONNECTOR REPAIR-MOLEX CONNECTOR/GROUND LOCATIONS . . . . . . . . . . 1 CONNECTORS . . . . . . . . . . . . . . . . . . . . . . . . . 7 SPLICE LOCATIONS . . . . . . . . . . . . . . . . . . . . . . 1 TERMINAL/CONNECTOR REPAIR—THOMAS NOTES, CAUTIONS, and WARNINGS . . . . . . . . . 1 AND BETTS CONNECTORS . . . . . . . . . . . . . . . 8 WIRE CODE IDENTIFICATION . . . . . . . . . . . . . . . 2 CONNECTOR REPLACEMENT . . . . . . . . . . . . . . 8 CIRCUIT IDENTIFICATION . . . . . . . . . . . . . . . . . . 3 CONNECTOR AND TERMINAL REPLACEMENT . . 9 CONNECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . 3 TERMINAL REPLACEMENT . . . . . . . . . . . . . . . . . 9 TAKE OUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 DIODE REPLACEMENT . . . . . . . . . . . . . . . . . . . 10DIAGNOSIS AND TESTING SPECIAL TOOLS TROUBLESHOOTING TOOLS . . . . . . ......... 5 WIRING/TERMINAL . . . . . . . . . . . . . . . . . . . . . . 11DESCRIPTION AND OPERATION tions, helpful information, and system diagrams. The intention is to organize information by system, con-HOW TO USE THIS GROUP sistently from year to year. The purpose of this group is to show the electricalcircuits in a clear, simple fashion and to make trou- CONNECTOR/GROUND LOCATIONSbleshooting easier. Components that work together Section 8W-90 contains connector/ground locationare shown together. All electrical components used in illustrations. The illustrations contain the connectora specific system are shown on one diagram. The feed name (or number)/ground number and componentfor a system is shown at the top of the page. All identification. Connector/ground location charts inwires, connectors, splices, and components are shown Section 8W-90 reference the illustration number forin the flow of current to the bottom of the page. Wir- components and connectors.ing which is not part of the circuit represented is ref- Section 8W-80 shows each connector and the cir-erenced to another page/section, where the complete cuits involved with that connector. The connectorscircuit is shown. In addition, all switches, compo- are identified using the name/number on the Dia-nents, and modules are shown in the at rest posi- gram pages.tion with the doors closed and the key removedfrom the ignition. SPLICE LOCATIONS If a component is part of several different circuits, Splice Location charts in Section 8W-70 show theit is shown in the diagram for each. For example, the entire splice, and provide references to other sectionsheadlamp switch is the main part of the exterior the splice serves.lighting, but it also affects the interior lighting and Section 8W-95 contains illustrations that show thethe chime warning system. It is important to real- general location of the splices in each harness. Theize that no attempt is made on the diagrams to illustrations show the splice by number, and providerepresent components and wiring as they a written location.appear on the vehicle. For example, a shortpiece of wire is treated the same as a long one. NOTES, CAUTIONS, and WARNINGSIn addition, switches and other components are Throughout this group additional important infor-shown as simply as possible, with regard to mation is presented in three ways; Notes, Cautions,function only. and Warnings. NOTES are used to help describe how switches orSECTION IDENTIFICATION components operate to complete a particular circuit. Sections in Group 8W are organized by sub-sys- They are also used to indicate different conditionstems. The sections contain circuit operation descrip-
  3. 3. 8W - 01 - 2 8W - 01 GENERAL INFORMATION XJDESCRIPTION AND OPERATION (Continued)that may appear on the vehicle. For example, an WIRE CODE IDENTIFICATIONup-to and after condition. Each wire shown in the diagrams contains a code CAUTIONS are used to indicate information that (Fig. 1) which identifies the main circuit, part of thecould prevent making an error that may damage the main circuit, gauge of wire, and color. The color isvehicle. shown as a two letter code which can be identified by WARNINGS provide information to prevent per- referring to the Wire Color Code Chart (Fig. 2)sonal injury and vehicle damage. Below is a list ofgeneral warnings that should be followed any time avehicle is being serviced.WARNING: ALWAYS WEAR SAFETY GLASSES FOREYE PROTECTION.WARNING: USE SAFETY STANDS ANYTIME A PRO-CEDURE REQUIRES BEING UNDER A VEHICLE.WARNING: BE SURE THAT THE IGNITION SWITCHALWAYS IS IN THE OFF POSITION, UNLESS THEPROCEDURE REQUIRES IT TO BE ON.WARNING: SET THE PARKING BRAKE WHENWORKING ON ANY VEHICLE. AN AUTOMATIC Fig. 1 Wire Code IdentificationTRANSMISSION SHOULD BE IN PARK. A MANUALTRANSMISSION SHOULD BE IN NEUTRAL.WARNING: OPERATE THE ENGINE ONLY IN AWELL-VENTILATED AREA.WARNING: KEEP AWAY FROM MOVING PARTSWHEN THE ENGINE IS RUNNING, ESPECIALLY THEFAN AND BELTS.WARNING: TO PREVENT SERIOUS BURNS, AVOIDCONTACT WITH HOT PARTS SUCH AS THE RADIA-TOR, EXHAUST MANIFOLD(S), TAIL PIPE, CATA-LYTIC CONVERTER, AND MUFFLER.WARNING: DO NOT ALLOW FLAME OR SPARKSNEAR THE BATTERY. GASES ARE ALWAYSPRESENT IN AND AROUND THE BATTERY.WARNING: ALWAYS REMOVE RINGS, WATCHES, Fig. 2 Wire Color Code ChartLOOSE HANGING JEWELRY, AND LOOSE CLOTH-ING.
  4. 4. XJ 8W - 01 GENERAL INFORMATION 8W - 01 - 3DESCRIPTION AND OPERATION (Continued)CIRCUIT IDENTIFICATION All circuits in the diagrams use an alpha/numericcode to identify the wire and its function (Fig. 3). Toidentify which circuit code applies to a system, referto the Circuit Identification Code Chart. This chartshows the main circuits only and does not show thesecondary codes that may apply to some models. Fig. 4 Connector Identification For viewing connector pin outs, with two terminals or greater, refer to section 8W-80. This section iden- tifies in-line connectors by number, and component connectors by name. If a component has two or more connectors they will be identified as C1, C2, C3...etc. This sections also provides terminal numbering, cir- cuit identification, wire colors, and functions. All connectors are viewed from the terminal end unless otherwise specified. To find the connector loca- 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 location section to indicate a point in which the wir- ing 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). Fig. 3 Circuit IdentificationCONNECTORS Connectors shown in the diagrams are identifiedusing the international standard arrows for male andfemale terminals (Fig. 4). A connector identifier isplaced next to the arrows to indicate the connectornumber (Fig. 4).
  5. 5. 8W - 01 - 4 8W - 01 GENERAL INFORMATION XJDESCRIPTION AND OPERATION (Continued) Fig. 5 Symbol Identification
  6. 6. XJ 8W - 01 GENERAL INFORMATION 8W - 01 - 5DESCRIPTION AND OPERATION (Continued)ELECTROSTATIC DISCHARGE (ESD) SENSITIVE CAUTION: Most of the electrical components usedDEVICES in today’s vehicle are solid state. When checking All ESD sensitive components are solid state and a voltages in these circuits use a meter with a 10-me-symbol (Fig. 6) is used to indicate this. When han- gohm or greater impedance.dling any component with this symbol comply with • Ohmmeter - Used to check the resistancethe following procedures to reduce the possibility of between two points of a circuit. Low or no resistanceelectrostatic charge build up on the body and inad- in a circuit means good continuity.vertent discharge into the component. If it is notknown whether the part is ESD sensitive, assume CAUTION: - Most of the electrical components usedthat it is. in today’s vehicle are Solid State. When checking (1) Always touch a known good ground before han- resistance in these circuits use a meter with adling the part. This should be repeated while han- 10-megohm or greater impedance. In addition, makedling the part and more frequently after sliding sure the power is disconnected from the circuit.across a seat, sitting down from a standing position, Circuits that are powered up by the vehicle electri-or walking a distance. cal system can cause damage to the equipment and (2) Avoid touching electrical terminals of the part, provide false readings.unless instructed to do so by a written procedure. (3) When using a voltmeter, be sure to connect the • Probing Tools - These tools are used for probingground lead first. terminals in connectors (Fig. 7). Select the proper (4) Do not remove the part from its protective size tool from Special Tool Package 6807, and insertpacking until it is time to install the part. it into the terminal being tested. Use the other end (5) Before removing the part from its package, of the tool to insert the meter probe.ground the package to a known good ground on thevehicle. Fig. 7 Probing Tool Fig. 6 Electrostatic Discharge Symbol INTERMITTENT AND POOR CONNECTIONS Most intermittent electrical problems are causedDIAGNOSIS AND TESTING by faulty electrical connections or wiring. It is also possible for a sticking component or relay to cause aTROUBLESHOOTING TOOLS problem. Before condemning a component or wiring When diagnosing a problem in an electrical circuit assembly check the following items.there are several common tools necessary. These tools • Connectors are fully seatedare listed and explained below. • Spread terminals, or terminal push out • Jumper Wire - This is a test wire used to con- • Terminals in the wiring assembly are fullynect two points of a circuit. It can be used to bypass seated into the connector/component and locked inan open in a circuit. position • Dirt or corrosion on the terminals. Any amountWARNING: NEVER USE A JUMPER WIRE ACROSS of corrosion or dirt could cause an intermittent prob-A LOAD, SUCH AS A MOTOR, CONNECTED lemBETWEEN A BATTERY FEED AND GROUND. • Damaged connector/component casing exposing the item to dirt and moisture • Voltmeter - Used to check for voltage on a cir- • Wire insulation that has rubbed through causingcuit. Always connect the black lead to a known good a short to groundground and the red lead to the positive side of the • Wiring broke inside of the insulationcircuit.
  7. 7. 8W - 01 - 6 8W - 01 GENERAL INFORMATION XJDIAGNOSIS AND TESTING (Continued)TROUBLESHOOTING TESTS Before beginning any tests on a vehicles electricalsystem use the Wiring Diagrams and study the cir-cuit. Also refer to the Troubleshooting Wiring Prob-lems section in this section.TESTING FOR VOLTAGE (1) Connect the ground lead of a voltmeter to aknown good ground (Fig. 8). (2) Connect the other lead of the voltmeter to theselected test point. The vehicle ignition may need tobe turned ON to check voltage. Refer to the appropri-ate test procedure. Fig. 9 Testing for Continuity 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 ignition 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 Fig. 8 Testing for Voltage (1) Connect the positive lead of the voltmeter to the side of the circuit closest to the battery (Fig. 10).TESTING FOR CONTINUITY (2) Connect the other lead of the voltmeter to the (1) Remove the fuse for the circuit being checked other side of the switch or component.or, disconnect the battery. (3) Operate the item. (2) Connect one lead of the ohmmeter to one side (4) The voltmeter will show the difference in volt-of the circuit being tested (Fig. 9). age between the two points. (3) Connect the other lead to the other end of thecircuit being tested. Low or no resistance means good TROUBLESHOOTING WIRING PROBLEMScontinuity. When troubleshooting wiring problems there areTESTING FOR A SHORT TO GROUND six steps which can aid in the procedure. The steps (1) Remove the fuse and disconnect all items are listed and explained below. Always check for non-involved with the fuse. factory items added to the vehicle before doing any (2) Connect a test light or a voltmeter across the diagnosis. If the vehicle is equipped with these items,terminals of the fuse. disconnect them to verify these add-on items are not (3) Starting at the fuse block, wiggle the wiring the cause of the problem.harness about six to eight inches apart and watch (1) Verify the problem.the voltmeter/test lamp. (2) Verify any related symptoms. Do this by per- (4) If the voltmeter registers voltage or the test forming operational checks on components that arelamp glows, there is a short to ground in that gen- in the same circuit. Refer to the wiring diagrams.eral area of the wiring harness.
  8. 8. XJ 8W - 01 GENERAL INFORMATION 8W - 01 - 7DIAGNOSIS AND TESTING (Continued) (8) Center the heat shrink tubing over the joint, and heat using a heat gun. Heat the joint until the tubing is tightly sealed and sealant comes out of both ends of the tubing. (9) Secure the wire to the existing ones to prevent chafing or damage to the insulation (10) Connect battery and test all affected systems. Fig. 10 Testing for Voltage Drop (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 for Fig. 11 Wire Repairproper operation of all items on the repaired circuit.Refer to the wiring diagrams. TERMINAL/CONNECTOR REPAIR-MOLEX CONNECTORS (1) Disconnect battery.SERVICE PROCEDURES (2) Disconnect the connector from its mating half/ component.WIRING REPAIR (3) Insert the terminal releasing special tool 6742 When replacing or repairing a wire, it is important into the terminal end of the connector (Fig. 12).that 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 ofthe 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 wire (example 1). (Fig. 11) (5) Push the two ends of wire together until thestrands of wire are close to the insulation (example2) (Fig. 11) (6) Twist the wires together (example 3) (Fig. 11) (7) Solder the connection together using rosin coretype solder only. Do not use acid core solder. Fig. 12 Molex Connector Repair
  9. 9. 8W - 01 - 8 8W - 01 GENERAL INFORMATION XJSERVICE PROCEDURES (Continued) (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. 15 Removing Wire Terminal (8) Push in the single lock tab on the side of the connector (Fig. 16). Fig. 13 Using Special Tool 6742TERMINAL/CONNECTOR REPAIR—THOMAS ANDBETTS CONNECTORS (1) Disconnect battery. (2) Disconnect the connector from its mating half/component. (3) Push in the two lock tabs on the side of theconnector (Fig. 14). Fig. 16 Single Lock Tab CONNECTOR REPLACEMENT (1) Disconnect battery. (2) Disconnect the connector that is to be repaired from its mating half/component (3) Remove the connector locking wedge, if required (Fig. 17)Fig. 14 Thomas and Betts Connector Lock Release Tabs (4) Insert the probe end of special tool 6934 intothe back of the connector cavity (Fig. 15). (5) Grasp the wire and tool 6934 and slowlyremove the wire and terminal from the connector. (6) Repair or replace the terminal. Fig. 17 Connector Locking Wedge (7) Install the wire and terminal in the connector.Fully seat the terminal in the connector.
  10. 10. XJ 8W - 01 GENERAL INFORMATION 8W - 01 - 9SERVICE PROCEDURES (Continued) (4) Position the connector locking finger away from (3) Cut off the existing wire connector directlythe terminal using the proper pick from special tool behind the insulator. Remove six inches of tape fromkit 6680. Pull on the wire to remove the terminal the harness.from the connector (Fig. 18) (Fig. 19). (4) Stagger cut all wires on the harness side at (5) Reset the terminal locking tang, if it has one. 1/2 inch intervals (Fig. 20). (6) Insert the removed wire in the same cavity on (5) Remove 1 inch of insulation from each wire onthe repair connector. the harness side. (7) Repeat steps four through six for each wire in (6) Stagger cut the matching wires on the repairthe connector, being sure that all wires are inserted connector assembly in the opposite order as was doneinto the proper cavities. For additional connector pin- on the harness side of the repair. Allow extra lengthout identification, refer to the wiring diagrams. for soldered connections. Check that the overall (8) Insert the connector locking wedge into the length is the same as the original (Fig. 20).repaired connector, if required. (9) Connect connector to its mating half/compo-nent. (10) Connect battery and test all affected systems. Fig. 20 Stagger Cutting Wires (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 Fig. 18 Terminal Removal enough to cover and seal the entire repair area. (9) Spread the strands of the wire apart on each part of the exposed wires. (10) Push the two ends of wire together until the strands of wire are close to the insulation. (11) Twist the wires together. (12) Solder the connection together using rosin core type solder only. Do not use acid core solder. (13) Center the heat shrink tubing over the joint and heat using a heat gun. Heat the joint until the tubing is tightly sealed and sealant comes out of both ends of the tubing (14) Repeat steps 8 through 13 for each wire. (15) Re-tape the wire harness starting 1-1/2 inches behind the connector and 2 inches past the repair. (16) Re-connect the repaired connector. (17) Connect the battery, and test all affected sys- Fig. 19 Terminal Removal Using Special Tool tems.CONNECTOR AND TERMINAL REPLACEMENT TERMINAL REPLACEMENT (1) Disconnect battery. (1) Disconnect battery. (2) Disconnect the connector (that is to be (2) Disconnect the connector being repaired fromrepaired) from its mating half/component. its mating half. Remove connector locking wedge, if required (Fig. 21).
  11. 11. 8W - 01 - 10 8W - 01 GENERAL INFORMATION XJSERVICE PROCEDURES (Continued) (3) Remove connector locking wedge, if required(Fig. 21). Fig. 23 Terminal Removal Using Special Tool (12) Twist the wires together. Fig. 21 Connector Locking Wedge Tab (Typical) (13) Solder the connection together using rosin (4) Position the connector locking finger away core type solder only. Do not use acid core solder.from the terminal using the proper pick from special (14) Center the heat shrink tubing over the jointtool kit 6680. Pull on the wire to remove the terminal and heat using a heat gun. Heat the joint until thefrom the connector (Fig. 22) (Fig. 23). tubing is tightly sealed and sealant comes out of both ends of the tubing. (15) Insert the repaired wire into the connector. (16) Install the connector locking wedge, if required, and reconnect the connector to its mating half/component. (17) Re-tape the wire harness starting 1-1/2 inches behind the connector and 2 inches past the repair. (18) Connect battery, and test all affected systems. DIODE REPLACEMENT (1) Disconnect the battery. (2) Locate the diode in the harness, and remove the protective covering. (3) Remove the diode from the harness, pay atten- tion to the current flow direction (Fig. 24). Fig. 22 Terminal Removal (5) Cut the wire 6 inches from the back of theconnector. (6) Remove 1 inch of insulation from the wire onthe harness side. (7) Select a wire from the terminal repair assem-bly that best matches the color wire being repaired. (8) Cut the repair wire to the proper length andremove 1 inch of insulation. (9) 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. (10) Spread the strands of the wire apart on eachpart of the exposed wires. (11) Push the two ends of wire together until the Fig. 24 Diode Identificationstrands of wire are close to the insulation.
  12. 12. XJ 8W - 01 GENERAL INFORMATION 8W - 01 - 11SERVICE PROCEDURES (Continued) (4) Remove the insulation from the wires in theharness. Only remove enough insulation to solder inthe new diode. (5) Install the new diode in the harness, makingsure current flow is correct. If necessary refer to theappropriate wiring diagram for current flow. (6) Solder the connection together using rosin coretype solder only. Do not use acid core solder. (7) Tape the diode to the harness using electricaltape making, sure the diode is completely sealedfrom the elements (8) Re-connect the battery, and test affected sys- Terminal Removing Tool 6932tems.SPECIAL TOOLSWIRING/TERMINAL Terminal Removing Tool 6934 Probing Tool Package 6807 Terminal Pick 6680
  13. 13. XJ 8W - 02 COMPONENT INDEX 8W - 02 - 1 8W-02 COMPONENT INDEX INDEX pageSCHEMATICS AND DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Component Page Component Page4WD Switch . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40 Driver Airbag . . . . . . . . . . . . . . . . . . . . . . . . . .8W-434WD Switch Illumination. . . . . . . . . . . . . . . . .8W-44 Driver Power Seat Motor . . . . . . . . . . . . . . . . .8W-63A/C Compressor Clutch . . . . . . . . . . . . . . . . . .8W-42 Driver Power Seat Switch . . . . . . . . . . . . . . . .8W-63A/C Compressor Clutch Relay . . . . . . . . . . . . .8W-42 Driver’s Door Speaker . . . . . . . . . . . . . . . . . . .8W-47A/C Heater Control . . . . . . . . . . . . . . . . . . . . .8W-42 Driver’s Door Tweeter . . . . . . . . . . . . . . . . . . .8W-47A/C High Pressure Switch . . . . . . . . . . . . . . . .8W-42 Duty Cycle Evap/Purge Solenoid . . . . . . . . . . .8W-30A/C Low Pressure Switch . . . . . . . . . . . . . . . . .8W-42 Electric Brake . . . . . . . . . . . . . . . . . . . . . . . . .8W-54Accelerator Pedal Position Sensor . . . . . . . . . .8W-30 Electronic Vacuum Modulator . . . . . . . . . . . . .8W-30Airbag Control Module . . . . . . . . . . . . . . . . . . .8W-43 Engine Coolant Temperature Gauge. . . . . . . . .8W-40Ambient Temperature Sensor . . . . . . . . . . . . . .8W-49 Engine Coolant Temperature Sensor . . . . . . . .8W-30Automatic Shut Down Relay . . . . . . . . . . . . . .8W-30 Engine Starter Motor . . . . . . . . . . . . . . . . . . . .8W-21Back-Up Lamps . . . . . . . . . . . . . . . . . . . . . . . .8W-51 Engine Starter Motor Relay . . . . . . . . . . . . . . .8W-21Back-Up Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-51 Fog Lamp Relay . . . . . . . . . . . . . . . . . . . . . . . .8W-50Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20 Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . .8W-50, 51Battery Temperature Sensor . . . . . . . . . . . . . .8W-30 Front Fog Lamp Switch . . . . . . . . . . . . . . . . . .8W-50Beam Select Switch . . . . . . . . . . . . . . . . . . . . .8W-50 Front Wiper Motor . . . . . . . . . . . . . . . . . . . . . .8W-53Blower Motor . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42 Fuel Gauge. . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40Blower Motor Relay . . . . . . . . . . . . . . . . . . . . .8W-42 Fuel Heater . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30Brake Pressure Warning Switch. . . . . . . . . . . .8W-40 Fuel Heater Relay . . . . . . . . . . . . . . . . . . . . . .8W-30Brake Warning Indicator . . . . . . . . . . . . . . . . .8W-40 Fuel Injectors . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30Camshaft Position Sensor . . . . . . . . . . . . . . . .8W-30 Fuel Level Sensor. . . . . . . . . . . . . . . . . . . . . . .8W-30Cargo Lamp/Switch . . . . . . . . . . . . . . . . . . . . .8W-44 Fuel Pump Module . . . . . . . . . . . . . . . . . . . . . .8W-30Center High Mounted Stop Lamp . . . . . . . . . .8W-51 Fuel Pump Relay . . . . . . . . . . . . . . . . . . . . . . .8W-30Cigar Lighter . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41 Fuel Quantity Actuator . . . . . . . . . . . . . . . . . .8W-30Cigar Lighter Relay . . . . . . . . . . . . . . . . . . . . .8W-41 Fuel Shutdown Solenoid. . . . . . . . . . . . . . . . . .8W-30Circuit Breakers. . . . . . . . . . . . . . . . . . . . . . . .8W-12 Fuel Temperature Sensor . . . . . . . . . . . . . . . . .8W-30Clockspring . . . . . . . . . . . . .8W-12, 30, 33, 40, 41, 70 Fuel Timing Solenoid . . . . . . . . . . . . . . . . . . . .8W-30Cluster Illumination Lamps . . . . . . . . . . . . . . .8W-40 Fuses (JB) . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-12Clutch Interlock Switch . . . . . . . . . . . . . . .8W-12, 21 Fuses (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10Clutch Interlock Switch Jumper . . . . . . . . .8W-12, 21 Fusible Link . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10Combination Flasher . . . . . . . . . . . . . . . . . . . .8W-52 G Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-35Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-49 Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-20Control Sleeve . . . . . . . . . . . . . . . . . . . . . . . . .8W-30 Glove Box Lamp Switch . . . . . . . . . . . . . . . . . .8W-44Controller Anti-Lock Brake . . . . . . . . . . . . . . .8W-35 Glow Plug Assembly . . . . . . . . . . . . . . . . . . . . .8W-30Controller Anti-Lock Brake Relay . . . . . . . . . .8W-35 Glow Plug Relay. . . . . . . . . . . . . . . . . . . . . . . .8W-30Cooling Fan Relay . . . . . . . . . . . . . . . . . . . . . .8W-42 Ground Distribution . . . . . . . . . . . . . . . . . . . . .8W-15Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . . . .8W-44 Headlamp Delay Module . . . . . . . . . . . . . . . . .8W-50Crankshaft Position Sensor . . . . . . . . . . . . . . .8W-30 Headlamp Leveling Motors . . . . . . . . . . . . . . .8W-50Data Link Connector . . . . . . . . . . . . . . . . . . . .8W-30 Headlamp Leveling Switch. . . . . . . . . . . . . . . .8W-50Diagnostic Splice Block . . . . . . . . . . . . . . . . . .8W-30 Headlamp Switch . . . . . . . . . . . . . . . . . . . . . . .8W-50Diesel Power Relay. . . . . . . . . . . . . . . . . . . . . .8W-30 Headlamps . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-50Dome Lamp/Switch . . . . . . . . . . . . . . . . . . . . .8W-44 Heated Oxygen Sensors . . . . . . . . . . . . . . . . . .8W-30Door Jamb Switches . . . . . . . . . . . . . . . . . .8W-39, 44 Horn Relay . . . . . . . . . . . . . . . . . . . . . . . . .8W-12, 41Door Lock Motors . . . . . . . . . . . . . . . . . . . . . . .8W-61 Horn Switch . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41
  14. 14. 8W - 02 - 2 8W - 02 COMPONENT INDEX XJComponent Page Component PageHorns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41 Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-47HVAC Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-42 Rear Fog Lamp Relay. . . . . . . . . . . . . . . . . . . .8W-51Idle Air Control Motor . . . . . . . . . . . . . . . . . . .8W-30 Rear Fog Lamp Switch . . . . . . . . . . . . . . . . . . .8W-51Ignition Coil . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30 Rear Washer Pump Motor . . . . . . . . . . . . . . . .8W-53Ignition Switch. . . . . . . . . . . . . . . . . . . . . . . . .8W-10 Rear Window Defogger Grid. . . . . . . . . . . . . . .8W-48Indicator Lamps . . . . . . . . . . . . . . . . . . . . . . . .8W-40 Rear Window Defogger Relay . . . . . . . . . . .8W-12, 48Instrument Cluster . . . . . . . . . . . . . . . . . . . . .8W-40 Rear Window Defogger Switch . . . . . . . . . . . . .8W-48Intake Air Temperature Sensor . . . . . . . . . . . .8W-30 Rear Wiper Motor. . . . . . . . . . . . . . . . . . . . . . .8W-53Interior Lights On Switch . . . . . . . . . . . . . . . .8W-44 Rear Wiper/Washer Switch. . . . . . . . . . . . . . . .8W-53Junction Block . . . . . . . . . . . . . . . . . . . . . . . . .8W-12 Repeater Lamps . . . . . . . . . . . . . . . . . . . . . . . .8W-50License Lamp . . . . . . . . . . . . . . . . . . . . . . . . . .8W-51 Seat Belt Switch. . . . . . . . . . . . . . . . . . . . . . . .8W-40Lift Gate Door Lock Motor . . . . . . . . . . . . . . . .8W-61 Seat Belt Warning Indicator. . . . . . . . . . . . . . .8W-40Liftgate Switch . . . . . . . . . . . . . . . . . . . . . .8W-39, 44 Speakers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-47Low Coolant Switch . . . . . . . . . . . . . . . . . . . . .8W-30 Speed Control Switches . . . . . . . . . . . . . . .8W-30, 33Low Washer Fluid Switch. . . . . . . . . . . . . . . . .8W-40 Speedometer. . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40Manifold Absolute Pressure Sensor . . . . . . . . .8W-30 Splice Details . . . . . . . . . . . . . . . . . . . . . . . . . .8W-70Mass Air Flow Sensor. . . . . . . . . . . . . . . . . . . .8W-30 Stop Lamp Switch . . . . . . . . . . . . . . . . . . .8W-30, 33Measure Coil . . . . . . . . . . . . . . . . . . . . . . . . . .8W-30 Tachometer. . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40Needle Movement Sensor . . . . . . . . . . . . . . . . .8W-30 Tail/Stop Lamps . . . . . . . . . . . . . . . . . . . . . . . .8W-51Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40 Tell Tale Module . . . . . . . . . . . . . . . . . . . . .8W-30, 40Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . .8W-40 Throttle Position Sensor . . . . . . . . . . . . . . .8W-30, 31Oil Pressure Sensor . . . . . . . . . . . . . . . . . . . . .8W-30 Trailer Tow Connector . . . . . . . . . . . . . . . . . . .8W-54Output Shaft Speed Sensor . . . . . . . . . . . . . . .8W-31 Transmission Control Module. . . . . . . . . . . . . .8W-31Overhead Module . . . . . . . . . . . . . . . . . . . . . . .8W-39 Transmission Control Solenoids . . . . . . . . . . . .8W-31Park Brake Switch . . . . . . . . . . . . . . . . . . . . . .8W-40 Transmission Range Switch . . . . . . . . . . . . . . .8W-31Part Time 4WD Switch . . . . . . . . . . . . . . . . . .8W-40 Trip Reset Switch . . . . . . . . . . . . . . . . . . . . . . .8W-40Passenger Airbag . . . . . . . . . . . . . . . . . . . . . . .8W-43 Turn Signal Relays. . . . . . . . . . . . . . . . . . . . . .8W-54Passenger Power Seat Motor . . . . . . . . . . . . . .8W-63 Turn Signal Lamps . . . . . . . . . . . . . . . . . . .8W-50, 51Passenger Power Seat Switch. . . . . . . . . . . . . .8W-63 Turn Signal/Hazard Switch . . . . . . . . . . . . . . .8W-52Passenger’s Door Speaker . . . . . . . . . . . . . . . .8W-47 Underhood Lamp . . . . . . . . . . . . . . . . . . . . . . .8W-44Passenger’s Door Tweeter. . . . . . . . . . . . . . . . .8W-47 Vanity Lamp. . . . . . . . . . . . . . . . . . . . . . . . . . .8W-44Position Lamps. . . . . . . . . . . . . . . . . . . . . . . . .8W-50 Vehicle Speed Control Servo. . . . . . . . . . . . . . .8W-33Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . .8W-47 Vehicle Speed Sensor . . . . . . . . . . . . . . . . . . . .8W-30Power Distribution Center . . . . . . . . . . . . . . . .8W-10 Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-40Power Lock/Window Switch/Modules . . . . .8W-60, 61 Warning Indicator Lamps. . . . . . . . . . . . . . . . .8W-40Power Lock/Window Switches . . . . . . . .8W-60, 61, 62 Water In Fuel Sensor . . . . . . . . . . . . . . . . . . . .8W-30Power Mirrors . . . . . . . . . . . . . . . . . . . . . .8W-48, 62 Wheel Speed Sensor . . . . . . . . . . . . . . . . . . . . .8W-35Power Outlet . . . . . . . . . . . . . . . . . . . . . . . . . .8W-41 Window Motors . . . . . . . . . . . . . . . . . . . . . . . .8W-60Power Steering Pressure Switch. . . . . . . . . . . .8W-30 Window Switches . . . . . . . . . . . . . . . . . . . . . . .8W-60Powertrain Control Module . . . . . . . . . . . .8W-30, 31 Windshield Washer Pump Motor . . . . . . . . . . .8W-53PRNDL Illumination . . . . . . . . . . . . . . . . . . . .8W-44 Windshield Wiper/Washer Switch. . . . . . . . . . .8W-53Radiator Cooling Fan . . . . . . . . . . . . . . . . . . . .8W-42
  15. 15. XJ 8W - 02 COMPONENT INDEX 8W - 02 - 3 8W-02 COMPONENT INDEXGENERAL INFORMATIONINTRODUCTION This section provides an alphabetical listing of allthe components covered in group 8W. For informationon system operation, refer to the appropriate sectionof the wiring diagrams.
  16. 16. XJ 8W - 10 POWER DISTRIBUTION 8W - 10 - 1 8W-10 POWER DISTRIBUTION INDEX pageSCHEMATICS AND DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Component Page Component PageA/C Compressor Clutch . . . . . . . . . . . . . . . . . . . . . .8W-10-12, 35 Fuse 27 (JB) . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 29A/C Compressor Clutch Relay . . . . . . . . . . . . .8W-10-6, 12, 26, 34, 35 Fuse 27 (PDC). . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-26, 34Automatic Shut Down Relay . . . . . . . . . . . . . . . . . . . .8W-10-7, 17 Fusible Link A11 . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6, 25Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6, 25 G108 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8, 28Brake Pressure Warning Switch . . . . . . . . . . . . . . . . . .8W-10-8, 28 Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6, 25,27Cargo Lamp/Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-10-14, 33 Glove Box Lamp Switch . . . . . . . . . . . . . . . . . . . . .8W-10-14, 33Center High Mounted Stop Lamp . . . . . . . . . . . . . . . .8W-10-20, 34 Glow Plug Assembly . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-27Cigar Lighter . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-11, 32 Glow Plug Relay . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-27, 35Cigar Lighter Relay . . . . . . . . . . . . . . . . . . . .8W-10-8, 11, 28, 32 Headlamp Delay Module . . . . . . . . . . . . . . . . . . . . .8W-10-12, 31Circuit Breaker 28 (JB) . . . . . . . . . . . . . . . . . . . . . .8W-10-8, 28 Headlamp Switch . . . . . . . . . . . . . . . . .8W-10-9, 12, 16, 29, 31, 37Circuit Breaker 29 (JB) . . . . . . . . . . . . . . . . . . . . . .8W-10-11, 32 Horn Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-11, 32Circuit Breaker 30 (JB) . . . . . . . . . . . . . . . . . . . . . .8W-10-8, 28 HVAC Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-11, 32Combination Flasher . . . . . . . . . . . . . . . . . . . . . . .8W-10-19, 36 Ignition Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-17Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-15, 33 Ignition Switch . . . . . . . . . . . . . . . . . . .8W-10-8, 9, 10, 28, 29, 30Controller Anti-Lock Brake . . . . . . . . . . . . . . . .8W-10-13, 20, 32, 34 Instrument Cluster. . . . . . . . . . . . . . . . . . . . .8W-10-9, 14, 29, 33Cooling Fan Relay . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6, 11 Junction Block . . . . . . . .8W-10-8, 9, 10, 11, 13, 14, 28, 29, 30, 31, 32, 33Data Link Connector . . . . . . . . . . . . . . . . . . . . . . .8W-10-16, 37 Left Courtesy Lamp. . . . . . . . . . . . . . . . . . . . . . . .8W-10-14, 33Diesel Power Relay . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-27 Left Fog Lamp . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-20, 36Dome Lamp/Switch . . . . . . . . . . . . . . . . . . . . . . . .8W-10-15, 33 Left Front Door Jamb Switch . . . . . . . . . . . . . . . . . . .8W-10-9, 29Downstream Heated Oxygen Sensor . . . . . . . . . . . . . . . . .8W-10-17 Left Front Power Lock/Window Switch . . . . . . . . . . . . .8W-10-14, 33Electronic Vacuum Modulator . . . . . . . . . . . . . . . . . . . .8W-10-35 Left Front Power Lock/Window Switch/Module . . . . . . . . . .8W-10-9, 29Engine Starter Motor . . . . . . . . . . . . . . . . . . .8W-10-6, 13, 25, 31 Left Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-11, 32Engine Starter Motor Relay . . . . . . . . . . . . . . . .8W-10-6, 13, 25, 31 Left Rear Fog Lamp . . . . . . . . . . . . . . . . . . . . . . .8W-10-16, 37Fog Lamp Relay . . . . . . . . . . . . . . . . . . . . . .8W-10-7, 20, 26, 36 Left Tail/Stop Lamp. . . . . . . . . . . . . . . . . . . . . . . .8W-10-20, 34Front Fog Lamp Switch. . . . . . . . . . . . . . . . . . . . . .8W-10-20, 36 Left Vanity Lamp . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-15, 33Fuel Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-31 Mass Air Flow Sensor. . . . . . . . . . . . . . . . . . . . . . . . .8W-10-35Fuel Heater Relay. . . . . . . . . . . . . . . . . . . . . . . . .8W-10-25, 31 Overhead Module . . . . . . . . . . . . . . . . . . . . .8W-10-12, 15, 33, 34Fuel Injector No. 1 . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-18 Park Brake Switch . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8, 28Fuel Injector No. 2 . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-18 Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-20, 35Fuel Injector No. 3 . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-18 Power Distribution Center . . . . . . . . . . . .8W-10-6, 7, 8, 11, 12, 13, 14,Fuel Injector No. 4 . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-18 16, 17, 19, 20, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 37Fuel Injector No. 5 . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-18 Powertrain Control Module. . . . . . . . . . . . . . . .8W-10-17, 19, 27, 34Fuel Injector No. 6 . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-18 Radiator Cooling Fan . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-11Fuel Pump Module . . . . . . . . . . . . . . . . . . . . . .8W-10-19, 27, 35 Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-14, 33Fuel Pump Relay . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-7, 19 Rear Fog Lamp Relay. . . . . . . . . . . . . . . . . . . . . . .8W-10-16, 37Fuse 1 (JB) . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-11, 32 Rear Fog Lamp Switch . . . . . . . . . . . . . . . . . . . . . .8W-10-16, 37Fuse 2 (JB) . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-11, 32 Rear Window Defogger Grid . . . . . . . . . . . . . . . . . . .8W-10-13, 31Fuse 2 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6, 8, 25, 27 Rear Window Defogger Relay. . . . . . . . . . . . . . .8W-10-10, 13, 30, 31Fuse 3 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6, 8, 25, 27 Right Courtesy Lamp . . . . . . . . . . . . . . . . . . . . . . .8W-10-14, 33Fuse 4 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6, 11, 25, 27 Right Fog Lamp . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-20, 36Fuse 5 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6, 11, 25, 28 Right Front Door Jamb Switch . . . . . . . . . . . . . . . . . .8W-10-9, 29Fuse 6 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6, 11, 25, 31 Right Front Power Lock/Window Switch . . . . . . . . . . . . .8W-10-14, 33Fuse 7 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6, 12, 25, 31 Right Front Power Lock/Window Switch/Module . . . . . . . . .8W-10-9, 29Fuse 8 (JB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 29 Right Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-11, 32Fuse 8 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-25, 31 Right Rear Fog Lamp . . . . . . . . . . . . . . . . . . . . . . .8W-10-16, 37Fuse 9 (JB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 29 Right Tail/Stop Lamp . . . . . . . . . . . . . . . . . . . . . . .8W-10-20, 34Fuse 9 (PDC) . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6, 12, 25, 32 Right Vanity Lamp . . . . . . . . . . . . . . . . . . . . . . . .8W-10-15, 33Fuse 10 (JB) . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 29 S106 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-20, 36Fuse 10 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-10-6, 13, 25, 28 S109 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-17Fuse 11 (JB) . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-9, 29 S110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-17Fuse 11 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-25, 32 S113 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-18Fuse 12 (JB). . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-10, 30 S118. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-6, 25Fuse 12 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-10-7, 13, 25, 32 S131 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-11, 32Fuse 13 (JB). . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-13, 31 S135 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-14Fuse 13 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-7, 13 S137 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-17, 27Fuse 14 (JB). . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-13, 31 S147 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-34Fuse 14 (PDC). . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-26, 32 S151 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-27Fuse 15 (JB) . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-11, 32 S153 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-27Fuse 16 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-10-7, 14, 26, 33 S156 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-35Fuse 17 (JB) . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8, 28 S200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8, 9, 28, 29Fuse 17 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-7, 16 S203 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-20, 34Fuse 18 (JB) . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8, 28 S207. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8, 28Fuse 18 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-7, 17 S210 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8, 9, 28, 29Fuse 19 (JB). . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-10, 30 S211. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-8, 28Fuse 19 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-10-7, 19, 26, 34 S214 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-14, 33Fuse 20 (JB) . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-11, 32 S218 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-16, 37Fuse 20 (PDC). . . . . . . . . . . . . . . . . . . . . . . . .8W-10-17, 26, 34 S220 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-16, 37Fuse 21 (JB) . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-11, 32 S300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-14, 33Fuse 21 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-7, 19, 35 S301 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-20, 35Fuse 22 (JB). . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-10, 30 S302 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-20, 34Fuse 22 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-10-7, 20, 26, 35 S308 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-16, 37Fuse 23 (PDC). . . . . . . . . . . . . . . . . . . . . . . . .8W-10-17, 26, 36 S347 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-15, 33Fuse 24 (JB). . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-10, 30 Stop Lamp Switch. . . . . . . . . . . . . . . . . . . . . . . . .8W-10-20, 34Fuse 24 (PDC) . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-7, 20, 27 Transmission Control Module . . . . . . . . . . . . . . . . . . . .8W-10-14Fuse 25 (JB). . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-10, 30 Underhood Lamp . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-14, 33Fuse 25 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-10-7, 20, 26, 36 Upstream Heated Oxygen Sensor . . . . . . . . . . . . . . . . . .8W-10-17Fuse 26 (JB). . . . . . . . . . . . . . . . . . . . . . . . . . . .8W-10-10, 30Fuse 26 (PDC) . . . . . . . . . . . . . . . . . . . . . . .8W-10-6, 12, 26, 37
  17. 17. 8W - 10 - 2 8W-10 POWER DISTRIBUTION XJ GAS POWER DISTRIBUTION CENTER 13 6 FUEL ENGINE D 14 12 10 8 5 2 PUMP STARTER RELAY MOTOR 11 4 RELAY 13 6 COOLING C AUTOMATIC FAN 14 12 10 8 5 2 SHUT RELAY DOWN 11 4 RELAY FOG CONTROLLER LAMP 10 9 8 20 19 18 ANTI-LOCK RELAY BRAKE 1 7 11 17 B RELAY 2 6 12 16 A/C 3 4 5 13 14 15 COMPRESSOR CLUTCH RELAY F26 10A F23 15A F20 20A 1 2 7 8 13 14 19 20 A F25 20A F22 15A F19 15A F17 20A 3 4 9 10 15 16 21 22 F24 15A F21 15A F18 25A F16 15A 5 6 11 12 17 18 23 24 FUSES 7 8 14 21 15 28 6 7 13 20 14 27 30A 5 6 12 19 13 26 40A 20A 4 5 11 18 12 25 40A 40A 3 4 10 17 11 24 50A 2 3 9 16 10 23 40A 30A 1 2 8 15 9 22 40A 20A M1 BATTERYJ978W-7 XJI01001
  18. 18. XJ 8W-10 POWER DISTRIBUTION 8W - 10 - 3 GAS FUSES FUSE NO. AMPS FUSED CIRCUIT FEED CIRCUIT 1 - - - 2 40A A1 12RD IGNITION SWITCH A0 6RD 3 40A A2 12PK/BK IGNITION SWITCH A0 6RD 4 40A A7 10RD/BK A0 6RD 5 40A F141 12LG/RD COOLING FAN RELAY A0 6RD 6 40A A111 12RD/LG A/C HEATER CONTROL A0 6RD 7 30A A3 16RD/WT A0 6RD 8 - - - A17 16RD/BK A0 6RD 9 20A A17 16RD/BK A0 6RD A4 14BK/PK 10 30A A0 6RD A4 14BK/PK 11 - - - 12 40A A10 12RD/DG ABS CONTROL MODULE A0 6RD 13 20A A20 14RD/DB ABS CONTROL MODULE A0 6RD 14 - - - 15 - - - 16 15A M1 20PK A0 6RD 17 20A F34 18TN/BK A0 6RD 18 25A A16 16RD/LG A0 6RD AUTOMATIC SHUT DOWN RELAY 19 15A L9 20BK/PK COMBINATION FLASHER A0 6RD 20 20A A142 18DG/OR A999 16RD 21 15A A61 14DG/BK A0 6RD 22 15A F32 20PK/DB STOP LAMP SWITCH A0 6RD 23 15A F142 20DG/WT A999 16RD 24 15A F61 20WT/OR FOG LAMP RELAY NO. 1 A0 6RD 25 20A F75 16VT POWER AMPLIFIER A0 6RD 26 10A F1 20DB/GY A17 16RD/BKXJI01002 J978W-7
  19. 19. 8W - 10 - 4 8W-10 POWER DISTRIBUTION XJ GAS A/C COMPRESSOR CLUTCH RELAY CAVITY CIRCUIT FUNCTION B1 A17 16RD/BK FUSED B(+) B2 C3 16DB/BK A/C COMPRESSOR CLUTCH RELAY OUTPUT B3 C13 18DB/OR A/C COMPRESSOR CLUTCH RELAY CONTROL B4 - - B5 F12 18DB/WT FUSED IGN. (ST-RUN) FOG LAMP RELAY CAVITY CIRCUIT FUNCTION B6 F61 20WT/OR FUSED B(+) B7 L139 20VT FOG LAMP RELAY OUTPUT B8 L35 20BR/WT GROUND B9 - - L77 20BR/YL FUSED HEADLAMP SWITCH OUTPUT B10 L77 20BR/YL FUSED HEADLAMP SWITCH OUTPUT CONTROLLER ANTI-LOCK BRAKE RELAY CAVITY CIRCUIT FUNCTION B16 G19 20LG/OR CONTROLLER ANTI-LOCK BRAKE INDICATOR OUTPUT B17 - - B18 G83 20GY/BK CONTROLLER ANTI-LOCK BRAKE RELAY CONTROL B19 Z1 20BK GROUND B20 F15 20DB/WT FUSED IGNITION (RUN)J978W-7 XJI01003
  20. 20. XJ 8W-10 POWER DISTRIBUTION 8W - 10 - 5 GAS AUTOMATIC SHUT DOWN RELAY CAVITY CIRCUIT FUNCTION C2 A16 16RD/LG FUSED B(+) C4 F12 18DB/WT FUSED IGN. (ST-RUN) C5 - - C6 K51 18DB/YL AUTOMATIC SHUT DOWN RELAY CONTROL A999 16RD AUTOMATIC SHUT DOWN RELAY OUTPUT C8 A999 16RD AUTOMATIC SHUT DOWN RELAY OUTPUT COOLING FAN RELAY CAVITY CIRCUIT FUNCTION C10 F141 12LG/RD FUSED B(+) C11 F12 18DB/WT FUSED IGN. (ST-RUN) C12 - - C13 C27 18DB/PK COOLING FAN RELAY CONTROL C14 C25 12LB COOLING FAN RELAY OUTPUT FUEL PUMP RELAY CAVITY CIRCUIT FUNCTION A61 14DG/BK FUSED B(+) D2 A61 14DG/BK FUSED B(+) D4 F12 18DB/WT FUSED IGN. (ST-RUN) D5 - - D6 K31 18BR FUEL PUMP RELAY CONTROL D8 A141 14DG/WT FUEL PUMP RELAY OUTPUT ENGINE STARTER MOTOR RELAY CAVITY CIRCUIT FUNCTION D10 A4 14BK/PK FUSED B(+) T41 20BK/WT ENGINE STARTER MOTOR RELAY CONTROL D11 (A/T) T41 20BK/WT ENGINE STARTER MOTOR RELAY CONTROL D11 (M/T) T41 20BR/LB ENGINE STARTER MOTOR RELAY CONTROL D12 - - D13 (A/T) F45 20YL/RD FUSED IGN. (ST) D13 (M/T) T141 20YL SWITCHED FUSED IGN. (ST) D14 T40 14BR ENGINE STARTER MOTOR RELAY OUTPUTXJI01004 J978W-7
  21. 21. 8W - 10 - 6 8W-10 POWER DISTRIBUTION XJ GAS S118 A0 A0 A11 BATTERY 6 6 FUSIBLE 6 (8W-20-2) RD RD LINK BK/WT (8W-20-3) 1 A11 1 C2 10 ENGINE DG GENERATOR STARTER (8W-20-2) MOTOR (8W-20-3) (8W-21-2) (8W-21-3) POWER 8 9 10 11 12 DISTRIBUTION CENTER FUSE FUSE FUSE FUSE FUSE 2 3 4 5 6 40A 40A 40A 40A 40A 1 (8W-10-8) 2 (8W-10-8) 3 (8W-10-11) 4 (8W-10-11) 5 (8W-10-11) C10 COOLING FAN RELAY (8W-42-7) A1 A2 A7 A111 12 12 10 12 RD PK/BK RD/BK RD/LG TO TO TO TO IGNITION IGNITION JUNCTION HVAC SWITCH SWITCH BLOCK UNIT 13 22 16 FUSE FUSE FUSE 7 9 10 30A 20A 30A 6 (8W-10-12) 15 (8W-10-12) 23 (8W-10-13) A B1 A1 D10 A/C FUSE ENGINE TO COMPRESSOR 26 STARTER FUSE CLUTCH 10A MOTOR 12 (PDC) RELAY (8W-10-12) RELAY (8W-10-7) (8W-42-7) A2 (8W-21-2) (8W-21-3) A3 F1 A4 16 20 14 RD/WT DB/GY BK/PK TO TO TO HEADLAMP OVERHEAD JUNCTION SWITCH MODULE BLOCKJ978W-7 XJI01005
  22. 22. XJ 8W-10 POWER DISTRIBUTION 8W - 10 - 7 GAS POWER FROM FUSE DISTRIBUTION 10 (PDC) CENTER (8W-10-6) A 18 A23 A18 FUSE FUSE FUSE 12 16 18 40A 15A 25A (8W-10-13) (8W-10-14) (8W-10-17) 25 A24 A17 C2 AUTOMATIC SHUT DOWN RELAY 19 A21 (8W-30-2) FUSE FUSE 13 17 40A 20A (8W-10-13) (8W-10-16) 26 A22 A10 A20 M1 F34 12 14 20 18 RD/DG RD/DB PK TN/BK TO TO TO TO CONTROLLER CONTROLLER S135 HEADLAMP ANTI-LOCK ANTI-LOCK SWITCH BRAKE BRAKE A16 A11 A9 A6 A4 FUSE FUSE FUSE FUSE FUSE 19 21 22 24 25 15A 15A 15A 15A 20A (8W-10-19) (8W-10-19) (8W-10-20) (8W-10-20) (8W-10-20) A15 A12 A10 A5 A3 D2 B6 FUEL FOG PUMP LAMP RELAY RELAY (8W-30-3) (8W-50-7) (8W-30-4) L9 A61 F32 F75 20 16 20 16 BK/PK DG/BK PK/DB VT TO TO TO TO COMBINATION POWERTRAIN STOP POWER FLASHER CONTROL LAMP AMPLIFIER MODULE SWITCHXJI01006 J978W-7
  23. 23. 8W - 10 - 8 8W-10 POWER DISTRIBUTION XJ GAS BATT A0 BRAKE (8W-10-6) PRESSURE POWER WARNING 8 9 DISTRIBUTION SWITCH CENTER 1 (8W-40-12) FUSE FUSE (8W-10-6) 2 3 G9 40A 40A 20 GY/BK 1 2 A14 C100 S211 A1 A2 G9 12 12 20 RD PK/BK GY/BK LHD RHD 66 C201 10 C203 G9 G9 C2 C6 C100 18 20 GY/BK GY/BK FROM 1 S210 PARK (8W-10-9) BRAKE SWITCH A1 A2 G9 G26 (8W-40-12) 12 12 20 20 RD PK/BK GY/BK LB 7 C1 3 C1 2 C1 1 C2 IGNITION KEY-IN SWITCH SWITCH 1 START 1 4 1 4 1 4 1 4 1 4 2 RUN 2 3 2 3 2 3 2 3 2 3 0 OFF 0 0 0 0 0 3 LOCK 4 ACC 8 C1 9 C1 4 C1 10 C1 1 C1 2 C2 A31 A21 A22 A41 Z1 G16 12 12 12 14 20 20 BK/WT DB BK/OR YL BK BK/LBRHD LHD S207 (8W-15-10) 10 C201 TO RUN A22 Z1 S200 (8W-10-10) 14 (8W-10-9) BK A31 12 BK/WT ST-RUN A21 ST A41 G108 (8W-10-9) (8W-10-10) (8W-15-10) L1 C4 JUNCTION 86 BLOCK CIGAR (8W-12-2) FUSE FUSE CIRCUIT CIRCUIT LIGHTER 17 18 BREAKER BREAKER RELAY 15A SPARE 28 30 (8W-41-2) (8W-12-17) (8W-12-17) 30A 20A (8W-41-3) (8W-12-18) (8W-12-18) (8W-12-23) (8W-12-25) (8W-12-24)J978W-7 XJI01007

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