0000017581PINOUT conectores internat.pdf

0000017581
ELECTRICAL
CIRCUIT
DIAGRAM
MANUAL
Electrical
Circuit
Diagrams
-
3200,
4100,
4200,
4300,
4400,
7300,
7400,
7500,
8500,
8600
-
Supersedes
S082854
Revision
2
May
2020
Electrical Circuit Diagrams
- 3200
Start Date: 03/11/2004 End Date: 09/30/2005
- 4100
- 4200, 4300, 4400, 4400
- 7300, 7400, 7500
- 8500, 8600
Supersedes S082854
Navistar, Inc.
2701 Navistar Drive, Lisle, IL 60532 USA
© 2020 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

TABLE OF CONTENTS
TABLE OF CONTENTS
2. INSTRUCTIONS AND CHARTS (CHAPTER 1)................................................................ 1
2.1. CIRCUIT NUMBER IDENTIFICATION AND LOCATION CHART, P. 1............................... 1
2.6. NAVPAK/ECM I6 ENGINE CONTROLLER CONNECTOR PIN NUMBER
IDENTIFICATION, P. 6..................................................................................... 6
2.7. CIRCUIT DIAGRAM INSTRUCTIONS, P. 7............................................................. 7
2.8. CIRCUIT DIAGRAM INSTRUCTIONS, P. 8............................................................. 8
2.9. SCHEMATIC SYMBOL CHART, P. 9..................................................................... 9
2.10. RELAY FUNCTIONS, P. 10.............................................................................. 10
2.11. LAMP BULB CHART, P. 11............................................................................... 11
2.12. INTERNATIONAL V8 AND I6 ECM CONTROLLER CONNECTORS PIN NUMBER
IDENTIFICATION, P. 12.................................................................................. 12
3. 12 VOLT POWER DISTRIBUTION CIRCUIT DIAGRAMS (CHAPTER 2)................................. 13
3.1. ACCESSORY, P. 1........................................................................................ 13
3.2. BATTERY FEEDS, CAB, P. 2............................................................................ 14
3.3. BATTERY, P. 3............................................................................................. 15
3.4. 1708 DATA LINK CHASSIS, P. 4........................................................................ 16
3.5. SWITCH DATA LINK, P. 5................................................................................ 17
3.6. DRIVETRAIN 1939 DATA LINK (CAB), P. 6............................................................ 18
3.7. DRIVETRAIN 1939 DATA LINK (CHASSIS), P. 7..................................................... 19
3.8. GROUNDS CHASSIS, P. 8.............................................................................. 20
3.9. GROUNDS CHASSIS, P. 9.............................................................................. 21
3.10. GROUNDS IP, P. 10...................................................................................... 22
3.11. GROUNDS IP, P. 11...................................................................................... 23
3.12. IGNITION CAB, P. 12..................................................................................... 24
3.13. IGNITION CAB, P. 13..................................................................................... 25
3.14. IGNITION FEEDS, CHASSIS, P. 14.................................................................... 26
3.15. START, P. 15............................................................................................... 27
4. CAB ACCESSORIES (CHAPTER 3)........................................................................... 28
4.1. CIGAR LIGHTER AND POWER FEEDS, P. 1......................................................... 28
4.2. CB POWER, P. 2.......................................................................................... 29
4.3. COMPASS AND TEMPERATURE DISPLAY, P. 3..................................................... 30
4.4. FRONT DOORS WINDOWS AND LOCKS (POWER), P. 4.......................................... 31
4.5. CREW DOORS WINDOWS AND LOCKS (POWER), P. 5........................................... 32
4.6. HORN, DUAL ELECTRIC, P. 6.......................................................................... 33
4.7. MIRRORS (HEATED, LIGHTED AND POWER), P. 7................................................. 34
4.8. RADIO (ENTERTAINMENT), SPEAKERS, P. 8....................................................... 35
4.9. WINDSHIELD WIPER AND WASHER PUMP, P. 9.................................................... 36
4.10. 2–WAY RADIO, P. 10..................................................................................... 37
4.11. SWITCH PACK, OPTIONAL GAUGE PACK, P. 11.................................................... 38
4.12. LIGHTED AIR SHIELD, P. 12............................................................................ 39
4.13. ROOF AUX. LOAD, P. 13................................................................................ 40
4.14. SATELLITE COMMUNICATION QUALCOMM-MCT AND IMCT SYSTEMS, P. 14................ 41
4.15. SELF CONTAINED AIR SEAT, P. 15.................................................................... 42
4.16. DIGITAL CLOCK PTC, P. 16............................................................................. 43
4.17. TRANSMISSION ALLISON LCT COLUMN SHIFTER, P. 17......................................... 44
i

TABLE OF CONTENTS
TABLE OF CONTENTS (CONT.)
4.18. HEATED SEATS FOR 7700 MODELS ONLY, P. 18................................................... 45
4.19. BACKUP CAMERA, P. 19................................................................................ 46
4.20. XATA COMPUTER, P. 20................................................................................ 47
4.21. KEYLESS IGNITION SYSTEM, P. 21................................................................... 48
5. 12V CHARGING + CRANKING SYSTEM (CHAPTER 4).................................................... 49
5.1. I6 EGR ENGINES, P. 1................................................................................... 49
5.2. V8 AVNT ENGINES, P. 2................................................................................. 50
5.3. CATERPILLAR, CUMMINS ISM ENGINES, P. 3...................................................... 51
5.4. I6 HEUI ENGINES, P. 4.................................................................................. 52
5.5. CATERPILLAR ENGINES, CUMMINS ISM AND WITH EATON ULTRASHIFT/DM2, P. 5... .. .. 53
5.6. I6 EGR ENGINES WITH AIR START, P. 6............................................................. 54
6. FANS AND ENGINE ACCESSORIES (CHAPTER 5)........................................................ 55
6.1. FAN WIRING, P. 1........................................................................................ 55
6.2. ETHER START, P. 2...................................................................................... 56
6.3. SNOW VALVE, P. 3....................................................................................... 57
6.4. FAN WIRING, CATERPILLAR AND CUMMINS, P. 4................................................. 58
7. ELECTRONIC ENGINES (CHAPTER 6)....................................................................... 59
7.1. ELECTRONIC ENGINE CONTROLS, I6–EGR ENGINES, P. 1..................................... 59
7.2. ELECTRONIC ENGINE CONTROLS, I6-EGR ENGINE CRUISE CONTROL AND BODY
BUILDER CONNECTIONS, P. 2........................................................................ 60
7.3. ELECTRONIC ENGINE CONTROLS, (V8–AVNT) ENGINES, P. 3................................. 61
7.4. ELECTRONIC ENGINE CONTROLS, V8–AVNT ENGINE CRUISE CONTROL AND
BODY BUILDER CONNECTIONS, P. 4................................................................ 62
7.5. CATERPILLAR C10, C11, C12, AND C13 ENGINES, P. 5........................................... 63
7.6. CUMMINS ISM ENGINE, P. 6........................................................................... 64
7.7. I6 HEUI ENGINE, P. 7.................................................................................... 65
7.8. I6 HEUI ENGINE CRUISE CONTROL AND BODY BUILDER CONNECTIONS WITH
MANUAL TRANSMISSION, P. 8........................................................................ 66
8. GAUGES WITH AND WITHOUT INTEGRAL WARNING LIGHT (CHAPTER 7)......................... 67
8.1. IP/GAUGE LIST, P. 1..................................................................................... 67
8.2. WARNING LIGHT LIST, P. 2............................................................................. 68
8.3. WARNING LIGHTS CONTROLLED BY ENGINE, TRANSMISSION, ABS
CONTROLLER, P. 3...................................................................................... 69
8.4. ENGINE OIL PRESSURE AND TEMP, SPEEDOMETER, TACH, VOLTMETER AND
WATER TEMP GAUGE CIRCUITS, P. 4............................................................... 70
8.5. IP/GAUGES AND WARNING LIGHTS — GAUGE CLUSTER, P. 5................................. 71
8.6. AIR PRESSURE INPUT CIRCUIT, P. 6................................................................. 72
8.7. AXLE TEMPERATURE, FWD REAR AND REAR AXLES, GAUGE INPUT CIRCUIT, P. 7....... 73
8.8. FUEL GAUGE INPUT CIRCUIT (SINGLE TANK) DIFFERENTIAL LOCK WARNING
LAMPS, P. 8............................................................................................... 74
8.9. GAUGES AND WARNING LIGHTS — FUEL FILTER RESTRICTION AND WATER IN
FUEL LIGHTS, P. 9....................................................................................... 75
8.10. GAUGES AND WARNING LIGHTS — PARK BRAKE LIGHT AND TRANSMISSION OIL
TEMP. GAUGE, P. 10..................................................................................... 76
8.11. GAUGES AND WARNING LIGHTS — AMMETER, P. 11............................................ 77
8.12. ENGINE OIL TEMPERATURE GAUGE WITH CATERPILLAR, P. 12............................... 78
8.13. FRONT AXLE ENGAGEMENT LAMP, P. 13........................................................... 79
ii

TABLE OF CONTENTS
9. LIGHTS (CHAPTER 8)........................................................................................... 80
9.1. BACK UP LIGHTS, P. 1.................................................................................. 80
9.2. LIGHT SYSTEMS — CLEARANCE, MARKER, PARK, TAIL, TURN AND STOP LAMPS, P. 2... 81
9.3. LIGHT SYSTEMS — CLEARANCE, MARKER, PARK, TAIL, TURN AND STOP LAMPS
(CONT.), P. 3.............................................................................................. 82
9.4. LIGHT SYSTEMS — TURN SIGNAL AND STOP SWITCHES, P. 4................................ 83
9.5. DOME LIGHT, MAP LIGHT, P. 5......................................................................... 84
9.6. DOME LIGHT, MAP LIGHT (CONT.), P. 6.............................................................. 85
9.7. FOG LIGHT AND WORK LIGHT, P. 7.................................................................. 86
9.8. HEADLIGHTS, P. 8....................................................................................... 87
9.9. AUX. HEADLIGHTS, AUX. PARK, AUX. TURN, P. 9................................................. 88
9.10. PANEL LIGHTS, P. 10.................................................................................... 89
10. CHASSIS ACCESSORIES (CHAPTER 9)..................................................................... 90
10.1. AIR DRYER AND HEATED DRAIN VALVE, P. 1...................................................... 90
10.2. ANTILOCK BRAKE SYSTEM (ABS), AIR, P. 2........................................................ 91
10.3. ANTILOCK BRAKE SYSTEM (ABS), AIR, TRACTION CONTROL, P. 3........................... 92
10.4. ANTILOCK BRAKE SYSTEM (ABS), AIR, TRACTION CONTROL, P. 3A.......................... 93
10.5. ANTILOCK BRAKE SYSTEM (ABS), AIR, TRACTION CONTROL, P. 3B.......................... 94
10.6. ANTILOCK BRAKE SYSTEM (ABS), HYDRAULIC, P. 4............................................. 95
10.7. ANTILOCK BRAKE SYSTEM (ABS), HYDRAULIC (CONT.), P. 5................................... 96
10.8. ANTILOCK BRAKE SYSTEM (ABS), HYDRAULIC (CONT.), P. 6................................... 97
10.9. TWO SPEED AXLE SWITCH WITH MANUAL TRANSMISSION AND I6 HEUI FUEL
HEATER N/WARN LIGHTS, P. 7........................................................................ 98
10.10. BRAKE SYSTEM, HYDRAULIC, P. 8................................................................... 99
10.11. FUEL TRANSFER PUMP, P. 9......................................................................... 100
10.12. BACK OF CAB BODY BUILDER AND TRAILER STOP, TAIL, MARKER, P. 10.................. 101
10.13. BODY BUILDER AND TRAILER TURNS, CENTER PIN ABS, CENTER PIN AUX, P. 11.. . . . . 102
10.14. BODY BUILDER AND TRAILER SOCKET BACK OF CAB SOCKETS, P. 12.................... 103
10.15. BODY BUILDER AND TRAILER SOCKET END OF FRAME (EOF) SOCKET AND BODY
BUILDER, P. 13.......................................................................................... 104
10.16. AIR SOLENOID 4–WAY PACK, P. 14................................................................. 105
10.17. REMOTE POWER UNITS, SOLENOID PACKS, REMOTE ENGINE SPEED
CONTROLLER, P. 15................................................................................... 106
10.18. HYD POWER PARK, P. 16............................................................................. 107
10.19. AIR SUSPENSION, P. 17............................................................................... 108
10.20. AUX. TRAILER, ACC CONTROLLED, P. 18......................................................... 109
10.21. AUX. TRAILER, BATTERY CONTROLLED, P. 19................................................... 110
10.22. LIFT AXLES (NON-STEERABLE), P. 20.............................................................. 111
10.23. LIFT AXLES (STEERABLE), P. 21..................................................................... 112
10.24. AIR ACTUATED PARK BRAKE, P. 22................................................................. 113
10.25. ANTILOCK BRAKE SYSTEM, WABCO AIR, P. 23.................................................. 114
10.26. ANTILOCK BRAKE SYSTEM, WABCO AIR, P. 24.................................................. 115
10.27. LIFT AXLES, WITH NON-STEERABLE FOR SS MODELS, P. 25................................. 116
10.28. FUEL / WATER SEPARATOR WITH 12VDC FUEL PREHEATER, P. 26.......................... 117
10.29. ELECTRONIC TRAILER BRAKE ACCOMMODATION, P. 27...................................... 118
10.30. LECTRASHIFT ACCOMMODATION, P. 28........................................................... 119
10.31. AUXILIARY 40 AMP CIRCUIT, P. 29.................................................................. 120
10.32. HOURMETER, CUSTOMER MOUNTED PTO, P. 30............................................... 121
10.33. REMOTE START/ STOP, P. 31........................................................................ 122
10.34. LIFT AXLE WITH 14RAR, P. 32........................................................................ 123
iii

TABLE OF CONTENTS
10.35. LIFT GATE, P. 33........................................................................................ 124
10.36. LIFT AXLE MULTIPLEX, P. 34......................................................................... 125
11. TRANSMISSIONS (CHAPTER 10)........................................................................... 126
11.1. ALLISON LCT TRANSMISSION OR ALLISON 1000, 2000, 2400, P. 1........................... 126
11.2. ALLISON MD TRANSMISSION, P. 2.................................................................. 127
11.3. ALLISON MD TRANSMISSION (WTEC), P. 3........................................................ 128
11.4. ALLISON MD TRANSMISSION (CONT.), P. 4....................................................... 129
11.5. TRANSMISSION, WTEC MD W/AUTO NEUTRAL, P. 5............................................ 130
11.6. EATON AUTOSHIFT TRANSMISSION, P. 6......................................................... 131
11.7. EATON AUTOSHIFT TRANSMISSION (CONT.), P. 7............................................... 132
11.8. EATON LIGHTNING TRANSMISSION, P. 8.......................................................... 133
11.9. ALLISON HD TRANSMISSION, P. 9.................................................................. 134
11.10. ALLISON HD TRANSMISSION, P. 10................................................................. 135
11.11. ALLISON HD TRANSMISSION, P. 11................................................................. 136
11.12. ALLISON HD TRANSMISSION WITH AUTO NEUTRAL, P. 12.................................... 137
11.13. ALLISON HD TRANSMISSION WITH AUTO NEUTRAL AND WITH 0013WUA, P. 13......... 138
11.14. ALLISON LCT TRANSMISSION (ALLISON 1000, 2000, 2400) WITH I6 HEUI, P. 14........... 139
11.15. TRANSMISSION RETARDER CONTROL WIRING WITH MD XMSN, HARD WIRED
EFFECTS, P. 15......................................................................................... 140
11.16. TRANSMISSION RETARDER CONTROL WIRING WITH MD XMSN, HARD WIRED
EFFECTS, P. 16......................................................................................... 141
12. AIR CONDITIONING (CHAPTER 11)......................................................................... 142
12.1. HVAC SYSTEMS, P. 1.................................................................................. 142
12.2. AIR CONDITIONING (ONLY), P. 2.................................................................... 143
12.3. AUTOTHERM SYSTEMS, P. 3......................................................................... 144
13. CONNECTOR COMPOSITES (CHAPTER 12).............................................................. 145
13.1. CONNECTOR COMPOSITES (10M), (71), (72), (345F), P. 1...................................... 145
13.2. CONNECTOR COMPOSITES (420F), (420M), (520), (521), (522), (523), (524), P. 2........... 146
13.3. CONNECTOR COMPOSITES (1002), (1003), (1010), P. 3......................................... 147
13.4. CONNECTOR COMPOSITE (1011), P. 4............................................................. 148
13.8. CONNECTOR COMPOSITES (1018), (1019M), (1020M), (1021M), (1022M), P. 8.............. 152
13.9. CONNECTOR COMPOSITES (1027M, F), (1100), (1101A), (1101), (1102), P. 9................ 153
13.10. CONNECTOR COMPOSITES (1104), (1106), (1200), (1210), P. 10............................... 154
13.11. CONNECTOR COMPOSITES (1300), (1301), (1400), (1402), (1410), (1500), (1510), P. 11... 155
13.12. CONNECTOR COMPOSITES (1553), (1554F), (1555), (1600), (1601), (1650), P. 12.......... 156
13.13. CONNECTOR COMPOSITES (1652), (1657M), (1658), (1659), (1800), P. 13................... 157
13.14. CONNECTOR COMPOSITES (1804), (1807), (1808), (1809), (1810), (1811), (1812),
(1813), (1814), (1815), P. 14........................................................................... 158
(1901M), (1915), P. 15.................................................................................. 159
13.16. CONNECTOR COMPOSITES (1918), (1935), (1920), (2000), (2002M), (2003M),
(2004M), (2005M), P. 16................................................................................ 160
13.17. CONNECTOR COMPOSITES (2006M), (2007F), (2021F), (2021M), (2022F), (2022M),
(2111M), (2112M), (2113M), (2114M), (2115M), (2116M), (2117M), (2301M), (2302M),
(2303M), P. 17........................................................................................... 161
iv

TABLE OF CONTENTS
13.18. CONNECTOR COMPOSITES (2304M), (2305M), (2306M), (2307F), (2308F), (2502F),
(2502M), (2503F, M), (2600F, M), P. 18............................................................... 162
13.19. CONNECTOR COMPOSITES (2601M, F), (2602M, F), (3000M), (3000F), (3002M),
(3003), (3100M), (3200F, M), (3201M), (3202), (3203M), P. 19.................................... 163
13.20. CONNECTOR COMPOSITES (3204M, F), (3209), (3210M), (3211M), (4000), P. 20........... 164
13.21. CONNECTOR COMPOSITE (4001), P. 21........................................................... 165
13.24. CONNECTOR COMPOSITES (4004), (4007), (4008), P. 24....................................... 168
13.26. CONNECTOR COMPOSITE (4014/1700), P. 26..................................................... 170
(4023), P. 27.............................................................................................. 171
13.29. CONNECTOR COMPOSITES (4070), (4071), (4087), (4098), (4101), P. 29..................... 173
13.31. CONNECTOR COMPOSITES (4105), (4111), (4120), (4301), P. 31............................... 175
13.32. CONNECTOR COMPOSITES (4305), (4410), (4410B), (4410C), (4410D), (4410E),
(4410H), (4410M), (4411), P. 32....................................................................... 176
13.33. CONNECTOR COMPOSITES (4411A), (4411B), (4412), (4415), (4450), (4450A),
(4460A), (4460), P. 33................................................................................... 177
13.35. CONNECTOR COMPOSITES (4810), (4712F), (4820), (4713F), (4830), (4840), (4850),
P. 35....................................................................................................... 179
13.36. CONNECTOR COMPOSITES (4900), (4910), (4950), (4951), P. 36.............................. 180
13.37. CONNECTOR COMPOSITES (6007), (6011), P. 37................................................. 181
13.38. CONNECTOR COMPOSITES (6013M), (6014), P. 38.............................................. 182
(6401M), (6401), (6406), (6407), (6407D), (6409), (6500), P. 40................................... 184
13.41. CONNECTOR COMPOSITES (6550), (6703), (6704), (6708), (7103), (7104), (7104A),
(7105), (7106), (7111), P. 41............................................................................ 185
13.43. CONNECTOR COMPOSITES (7204), (7205), (7206), (7211), (7212), (7213), P. 43............ 187
(7601), P. 45.............................................................................................. 189
(7610), (7611), (7612), (7613), (7615), (7700), (7702), (7703), (7703A), P. 46................... 190
13.47. CONNECTOR COMPOSITES (7800), (7801M), (7803), (7900), (7901), P. 47................... 191
(8200), P. 48.............................................................................................. 192
(8501), (8502), (8502A), P. 49.......................................................................... 193
13.50. CONNECTOR COMPOSITES (8503), (8503A), (8505), (8506), (8507), (8508), (8509),
(8600), (8601), (8602), P. 50........................................................................... 194
(9254), (9255), P. 52.................................................................................... 196
13.53. CONNECTOR COMPOSITES (9260), (9261), (9262), (9263), (9264), (9265), (9303A), P.
53.......................................................................................................... 197
v

TABLE OF CONTENTS
(9514), (9515), P. 55.................................................................................... 199
13.56. CONNECTOR COMPOSITES (9516), (9517), (9518), (9519), P. 56.............................. 200
13.59. CONNECTOR COMPOSITES (9715), (9715A), (9715B), P. 59.................................... 203
13.60. CONNECTOR COMPOSITES (9716), (9716A), (9716B), P. 60.................................... 204
13.61. CONNECTOR COMPOSITES (9717A), (9717B), P. 61............................................. 205
(9762), (9763), P. 62.................................................................................... 206
(9850), (9860), (9865M), (9900), (9900A), (9913A), P. 64.......................................... 208
13.65. CONNECTOR COMPOSITES (9913B), (9914), (4100), (4109), (4112), (6502), (7107),
(7208), (7615), P. 65.................................................................................... 209
vi

ELECTRICAL CIRCUIT DIAGRAM MANUAL
INSTRUCTIONS AND CHARTS (CHAPTER 1)
2.1. CIRCUIT NUMBER IDENTIFICATION AND LOCATION CHART, P. 1
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
INTERNATIONAL TRUCK AND ENGINE CORPORATION
PART NO. SHEET
REV
THIS PRINT IS PROVIDED ON A RESTRICTED BASIS AND IS NOT
TO BE USED IN ANY WAY DETRIMENTAL TO THE INTEREST OF
INTERNATIONAL TRUCK AND ENGINE CORPORATION.
ELECTRICAL CIRCUIT DIAGRAM
DATE CHANGE
CHAPTER 1
INTERNATIONAL CIRCUIT NUMBER
IDENTIFICATIOIN AND LOCATION
U00DLCK
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
09AUG00 01
AE08-52365
PREFIX DESIGNATIONS
PREFIX LOCATION
A Cab-instrument Panel Module
B
Cab-Header/Clearance Lights
C
Cab-Roof/Rear Panel
D
Cab-Left Door/Doors
Cab-Driver Control Module
E
F Cab-Right Door/Doors
H Cab-Sleeper
J Cab-Dash(outside)
K Engine/Radiator
L Transmission
M Chassis/Front End (Cab Dash Panel Forward)
N Chassis/Center Section (Cab Dash Panel to Cab RR Xmbr)
P Chassis/Wheel Base Section
R Chassis/Suspension/Rear Axle/Axles
S Chassis/AF Section/Stop/Tail/Turn Lights
CIRCUIT NUMBER AND IDENTIFICATIONS
CIRCUIT
NUMBER
COLOR DESCRIPTION
1 LTBL ALTERNATOR - FIELD
2 RD ALTERNATOR - CHARGE
3 DKBL 1708 DATA LINK, SWITCH DATA LINK (+)
GY 1708 DATA LINK, SWITCH DATA LINK (-)
4 SERIAL/DATA COMMUNICATION J1922
5 YL DRIVE TRAIN J1939 DATA LINK (+)
GN DRIVE TRAIN J1939 DATA LINK (-)
6 GY LOW VOLTAGE ELECTRONIC FEED (< 9 VOLTS)
7 RD ALTERNATOR - RESISTANCE
8
PRODUCTION RELEASE. A P54304U
PEC 16JAN01
Figure 1 Circuit Number Identiﬁcation and Location Chart
1

DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 1
IDENTIFICATION AND LOCATION (CONT.)
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
09AUG00 02
AE08-52365
CIRCUIT NUMBER AND IDENTIFICATIONS (CONT.)
CIRCUIT
NUMBER
COLOR DESCRIPTION
9 GY ZERO VOLT REFERENCE (ZVR)
10 WH CHASSIS/ENGINE GROUND
11 WH CAB/SLEEPER GROUND
12 LTBL ACCESSORY FEED
13 PK IGNITION FEED
BK IGNITION FEED (BODY BUILDER CONNECTOR)
14 RD BATTERY FEED
15 RD KEY SWITCH FEED
16
17 PK STARTER CONTROL
18 PK GLOW PLUG/PRE-HEATER
19 GY ENGINE SHUTDOWN
20 LTGN REMOTE POWER MODULE
21 COLD START CONTROLS (ETHER)
TN
22
23 TN ENGINE FAN/SHUTTERS
24 GY ENGINE EXHAUST BRAKE
25 TN PYROMETER
26 TN AMMETER
27 TN VOLTMETER
28 TN INSTRUMENTS AND GAUGES
29 TN ENGINE WATER TEMPERATURE
30 ENGINE OIL TEMPERATURE
TN
31 TN TRANSMISSION OIL TEMPERATURE
32 TN AXLE OIL TEMPERATURE
PEC 16JAN01
Figure 2 Circuit Number Identiﬁcation and Location Chart (Cont.)
2

DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 1
U00DLCK
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
15 MAY 00 03
AE08-52365
CIRCUIT
NUMBER
COLOR DESCRIPTION
33 TN ENGINE OIL LEVEL
34 TN COOLANT LEVEL
35 TN ENGINE OIL PRESSURE
36 TN FUEL LEVEL
37 TN FUEL PUMP
38
39 GY AIR DRYER HEATER
40 GY LOW AIR PRESSURE WARNING
41 TN AIR TEMPERATURE
42 GY FRONT AXLE ENGAGED
43 GY POWER DIVIDER LOCK (PDL) WARNING
44 GY PARK BRAKE WARNING
45 LTGN ANTI - THEFT WARNING
46 GY POWER TAKE - OFF WARNING
47 GY SPEEDOMETER
48 GY TACHOMETER
49 GY DIFFERENTIAL LOCK WARNING
50 YL LIGHT SWITCH FEED
51 YL DIMMER SWITCH FEED
52 YL HEADLIGHT HI - BEAM
53 YL HEADLIGHT LO - BEAM
54 BN PARKING/MARKER LIGHTS
55 OR TURN SIGNAL - FEED
56 OR TURN SIGNAL LIGHTS - LEFT
YL TURN SIGNAL LIGHTS - LEFT (BODY BUILDER CONNECTION)
57 OR
LT GN
TURN SIGNAL LIGHTS - RIGHT
TURN SIGNAL LIGHTS - RIGHT (BODY BUILDER CONNECTION)
PEC 16JAN01
3

DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 1
U00DLCK
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
15MAY00 04
AE08-52365
COLOR
CIRCUIT
NUMBER
DESCRIPTION
58 BN CLEARANCE/IDENTIFICATION LIGHTS
59 GY SOLENOID
60 OR HAZARD LIGHTS
61 GY AIR SUSPENSION
62 DKBL PANEL LIGHTS
63 DKBL COURTESY/DOME LIGHTS
64 YL FOG/DRIVING LIGHTS
65 OR CAB REAR FLOOD LIGHT
66 YL DAYTIME RUNNING LIGHTS
67
68 BN TAIL LIGHTS
69 BN LICENSE PLATE LIGHT
70 OR STOP LIGHTS
RD STOP LIGHTS (BODY BUILDER CONNECTION)
71 OR BACK - UP LIGHTS
LTBL BACK - UP LIGHTS (BODY BUILDER CONNECTION)
72 OR TRAILER AUXILIARY FEED - BATTERY
73 PWM
LTGN
74 LTGN HEATER RECIRC MOTOR
75 LTGN HEATER BLOWER MOTOR
76 LTGN AUXILIARY FAN
77 LTGN AIR CONDITIONER
78 LTGN MIRRORS - HEATED; MOTORIZED
79 GY SEAT BELTS
80 BK SLEEPER BOX RELAY - FEED
81 LTGN POWER DOOR LOCKS
PEC 16JAN01
4

5

2.6. NAVPAK/ECM I6 ENGINE CONTROLLER CONNECTOR PIN NUMBER
IDENTIFICATION, P. 6
Figure 6 NAVPAK/ECM I6 Engine Controller Connector Pin Number Identiﬁcation
6

2.7. CIRCUIT DIAGRAM INSTRUCTIONS, P. 7
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 1
CIRCUIT DIAGRAM INSTRUCTIONS
U00DLCK
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
15MAY00 07
AE08-52365
R32-G
B - MULTIPLE CONNECTIONS ARE DISPLAYED ON
SCHEMATIC AS SHOWN. REFER TO CONNECTOR
COMPOSITE WITH APPLICABLE NUMBER FRO MORE
COMPLETE INFORMATION.
SINGLE IN-LINE CONNECTORS DISPLAYED
AS SHOWN WITH OR WITHOUT CONNECTOR
NUMBER.
R32-GB
WIRE CONNECTION
C - PHANTOM LINES INDICATE PRINTED CIRCUITS OR BUSSED CIRCUITS. THESE CIRCUITS EXIST IN THE INSTRUMENT
CLUSTERS AND FUSE/CIRCUIT BREAKER CONNECTORS.
D - MULTPLE CIRCUIT NUMBERS ON A LINE INDICATE ONE WIRE DISTRIBUTING CURRENT TO TWO CIRCUITS.
SUFFIX
G IS NOT A SUFFIX BUT INDICATES
A GROUND CIRCUIT.
ETHER
SWITCH
PRINTED
CIRCUIT IN
INSTRUMENT
CLUSTER
F - CIRCUIT "11" DENOTES ANY COMMON GROUND, (MORE THAN ONE CIRCUIT). ANY INDIVIDUAL GROUND CIRCUIT
IS IDENTIFIED WITH THAT PARTICULAR CIRCUIT NUMBER. (E.G CIRCUIT 97 CRUISE CONTROL, IS IDENTIFIED
PER EXAMPLE).
GROUND CIRCUITS ARE DESCRIBED THUS:
A12
11-GB
WIRE
CONNECTION
A55A
16OR
LOCATION IN FUSE/CIRCUIT
BREAKER CONNECTION
BUSS IN FUSE/CIRCUIT
BREAKER CONNECTOR
F19
COMMON GROUND
CIRCUIT NUMBER
B
RELAY - SUPPRESSED
12
20A
F1
A - SWITCH AND RELAY POSITIONS AS SHOWN ON
CIRCUIT DIAGRAMS INDICATE NORMAL POSITION
WITH IGNITION OFF UNLESS OTHERWISE NOTED.
12
R32-GA
BUSSED CONTACT
30 86
87A 87 85
A128
E - SWITCHES, RELAYS AND COMPONENTS INDICATE EXTERNAL WIRE CONNECTIONS AND/OR INTERNAL
CONNECTIONS OR CONTACTS.
LOCATION
OFF
OFF
OFF
OFF
A
A
A
A
I
I
I
I
S S S
S
B
S
GND I A
INDIVIDUAL GROUND
CIRCUIT NUMBER
16BN
A55A/A60
16OR
16RD
A60
16OR
NOTE: FOR CIRCUIT DESCRIPTION OTHER THAN GROUNDS,NEITHER THE LETTER "G" NOR THE
COLOR WHITE SHALL BE USED.
CONTACT
VOLTMETER
A12A
11-GA
11-G
KEY SWITCH PIGTAIL
INTERNAL
CONNECTION
INDICATES
CASE
GROUND
SUFFIX
FUSE RATING
SWITCH:
MANUAL/MECHANICAL
F18
G IS NOT A SUFFIX BUT
INDICATES A GROUND
CIRCUIT.
A
20A
AND/OR
SWITCH
MAGNETIC
SUPPRESSED
PEC 16JAN01
LOCATION/CIRCUIT NUMBER
WIRE GAUGE/WIRE COLOR
Figure 7 Circuit Diagram Instructions
7

2.8. CIRCUIT DIAGRAM INSTRUCTIONS, P. 8
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 1
CIRCUIT DIAGRAM INSTRUCTIONS
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
10AUG00 08
AE08-52365
AIR CONDITIONER
WH - WHITE
IND
-
NOUN ABBREVIATION
INDICATOR
-
AWG
ACC
-
B
LT
W/O WITHOUT
-
-
G - ABBREVIATIONS: COLOR, NOUN AND ENGINE
-
R
COLOR ABBREVIATION
ENG
S
RIGHT
ENGINE
START OR SENDER
BN - BROWN
-
-
GD - GOLD
-
GA
W/
GN - GREEN
G
WITH
LT GN - LIGHT GREEN
ACCESSORY
PL - PURPLE
PK - PINK
GROUND
SIL - SILVER
IGN
AUX
VT - VIOLET
IGNITION
-
YL - YELLOW
-
AUXILIARY
A
L
AMERICAN WIRE GAUGE
LEFT
BAT LIGHT
-
BATTERY
-
CONN
OPT
DRL
CONNECTION OR CONNECTOR
OPTIONAL
DAYTIME RUNNING LIGHTS
-
AQ - AQUA
-
-
BL - BLUE
BK - BLACK
FWD
THERMO
DK GN - DARK GREEN
FORWARD
THERMOSTAT
GY - GRAY
GAUGE
-
LT BL - LIGHT BLUE
GND
ISM - MFG (CUMMINS) 10.8 LITER ELECTRONIC ENGINE CONTROL
N14E PLUS - MFG (CUMMINS) 14 LITER ELECTRONIC ENGINE CONTROL
C-10,C-12 - MFG (CATERPILLAR) 10.3 LITER ELECTRONIC ENGINE CONTROL
V8-AVNT - MFG (INTERNATIONAL) V8 6.0 LITER ELECTRONIC ENGINE CONTROL
I6-HEUI - MFG (INTERNATIONAL) NGD I6 DT466 & DT/HT530 ELECTRONIC ENGINE CONTROL
ENGINE ABBREVIATION
OR - ORANGE
RD - RED
I
AC
TN - TAN
PEC 16JAN01
Figure 8 Circuit Diagram Instructions (Cont.)
8

2.9. SCHEMATIC SYMBOL CHART, P. 9
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 1
SCHEMATIC SYMBOL CHART
U00DLCK
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
19MAY00 09
AE08-52365
RESISTOR
SOLENOID - GENERAL USAGE
SWITCH CONTACT, NORMALLY CLOSED
SPLICE
CIGAR LIGHTER
SWITCH-MANUAL/MECHANICAL
SYMBOL
SPEAKER - SOUND SYSTEM
LIGHT - SINGLE FILMENT
SENDER - OIL, WATER,
FUEL, TEMPERATURE
DESCRIPTION
GROUND
MALE TERMINAL
LIGHT EMITTING DIODE
SWITCH CONTACT, NORMALLY OPEN
JUNCTION POINT
MOTOR - ELECTRIC
SWITCH-PRESSURE
RELAY-SUPPRESSED
30
86
87A 87 85
HORN
DESCRIPTION
MAGNETIC SWITCH
LIGHT - DOUBLE FILAMENT
MALE/FEMALE IN-LINE CONNECTION
SYMBOL
FEMALE TERMINAL
FUSE
PEC 16JAN01
Figure 9 Schematic Symbol Chart
9

2.10. RELAY FUNCTIONS, P. 10
Figure 10 Relay Functions
10

2.11. LAMP BULB CHART, P. 11
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 1
LAMP BULB CHART
U00DLCK
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
20JUN00 11
AE08-52365
BULB APPLICATION BULB TRADE NUMBER
CANDLEPOWER OR WATTS
PEC 16JAN01
BACK-UP LIGHTS 32 CANDLEPOWER GE1156
CLEARANCE & INDENTIFICATION 3 CANDLEPOWER GE193
COURTESY LIGHT 3 CANDLEPOWER GE168
DOME LIGHTS 12 CANDLEPOWER GE561
FOG LIGHTS 55 CANDLEPOWER VH550
HEAD LIGHTS:
LOW BEAMS 65 WATTS GE9007
HIGH BEAMS GE9007
65 WATTS
INSTRUMENT CLUSTER:
GAUGE BACK LIGHT 082S270538-3
GAUGE WARNING LED (RED) 082S272109-3
RANGE INHIBIT LED (YELLOW) 082S272109-4
COLD AMBIENT PROTECTION LED (YELLOW) 082S272109-4
FUEL FILTER LED (YELLOW) 082S272109-4
WARN ENGINE LED (YELLOW) 082S272109-4
STOP ENGINE LED (RED) 082S272109-3
BRAKE PRESSURE LED (RED) 082S272109-3
BRAKE FLUID LED (RED) 082S272109-3
WAIT TO START LED (YELLOW) 082S272109-4
CHECK TRANSMISSION LED (YELLOW) 082S272109-4
TRAILER ABS LED (YELLOW) 082S272109-4
WASHER FLUID LED (YELLOW) 082S272109-4
LEFT TURN SIGNAL LED (GREEN) 082S272109-2
TRACTION CONTROL LED (GREEN) 082S272109-2
WATER IN FUEL LED(YELLOW) 082S272109-4
PARK FLUID LED LIGHT (RED) 082S272109-3
CHECK ELECTRICAL SYSTEMS LED (YELLOW) 082S272109-4
PARK BRAKE LED (RED) 082S272109-3
CRUISE CTRL ACTIVE LED (GREEN) 082S272109-2
ANTILOCK BRAKING SYSTEM LED (YELLOW) 082S272109-4
RIGHT TURN LED (GREEN) 082S272109-2
COOLANT LEVEL LED (RED) 082S272109-3
SEAT BELT LED (RED) 082S272109-3
HIGH BEAM ICON LED (BLUE) 082S272109-5
CHECK AIR CONDITIONER LED (YELLOW) 082S272109-4
RETARD OVER HEAT LED (RED) 082S272109-3
PTO/THROTTLE LED (RED) 082S272109-3
MAP LIGHT 3 CANDLEPOWER 1816
SIDE MARKER 2458
STOP & TURN/TAIL & LICENSE PLATE 32/3 CANDLEPOWER 1157
TURN SIGNAL/MARKER (FENDER) 3157
TURN SIGNAL & MARKER LIGHT 2356
WORK (TRAILER HOOK-UP) LIGHT 4411
REVISED DRWG SHEET. B P54634F
PEC 18JUN01
Figure 11 Lamp Bulb Chart
11

2.12. INTERNATIONAL V8 AND I6 ECM CONTROLLER CONNECTORS PIN NUMBER
IDENTIFICATION, P. 12
Figure 12 International V8 and I6 ECM Controller Connectors Pin Number Identiﬁcation
12

12 VOLT POWER DISTRIBUTION CIRCUIT DIAGRAMS (CHAPTER 2)
3.1. ACCESSORY, P. 1
DRAWN
DATE
THIS PRINT IS PROVIDED ON A RESTRICTED BASIS AND
IS NOT TO BE USED IN ANY WAY DETRIMENTAL TO THE
INTEREST OF INTERNATIONAL TRUCK AND ENGINE CORPORATION.
REV
CHK CHANGE
DATE
NAME
REFERENCE
PART NO.
RELEASE NO. SHEET
CHAPTER 2
ACCESSORY
CIRCUIT DIAGRAM, 42/43/44/85/8600 & 73/74/7500
U00JXP9
09AUG00
52778H AE08052366 001
CNA1 31MAR09 ADDED MXT EFFECTS - H 61817B
F34, CIRC AIRCP, ACC
DIODE ASSY
(1106M)
B
E1
F5
5A
B4
15A
H1
DIAG CONN
(1650-B)
C
A12AB
18LTBL
S
I
A13DH
18PK
A
A12M
16LTBL
GND
A12C
10LTBL
A
A12E
10LTBL
A12D
10LTBL
D3
S
A12P
18LTBL
A12N
18LTBL
A12S
16LTBL
A86
18LTGN
A86F
16LTGN
A14AT
10RD
G3
I
CAB FUSE BLOCK
(1013)
CAB FUSE BLOCK
(1011)
POWER MIRRORS
CH3_07
SWITCH PACK
CH3_11
RADIO
CH3_08,CH3_29
TRAILER AUX/
ROOF AUX
CH3_12
30
85
OFF
IGN RELAY
CH2_12
OFF
OFF
A
A
A78L
18LTGN
I I
A13DD
18PK
KEY SWITCH
(1100)
D
5A
S
B3
S
F35
J3
ACCESSORY
RELAY
(CAB FUSE BLOCK)
(1012)
CB RADIO
CH3_02
A15
18RD
ELECT SYSTEM
CONTROLLER
(1600-2)
A98
18VT
86
87
J4
S
G4
A
B
A
87A
I
A12B
10LTBL
5A
F1
A
A4
F34
G1
F23
A12
18LTBL
A11-GAF
16WH
OFF
IGN RELAY
CH2_12
BODY BUILDER
CONN
CH9_10
A15
18RD
CH2_02
RELAY EXHAUST
(1012-A4)
CH5_06
#A24-GE
16WH
# W/ MWM ENGINE
* W/ MXT
TRANSFER CASE
(J2A) CH10_27
ECU
(C70) CH9_41
*AIRCP
12PK
*ACC
16LTBL
C3
A3
10A
F36
Figure 13 Accessory
13

3.2. BATTERY FEEDS, CAB, P. 2
A14AA
6RD
A14AAB
6RD
A14FJ
10RD
30A
A3 B3
CAB FUSE
BLOCK
(1011)
F15
ROOF MOUNTED ASSY
100A
AUX PWR
A14AB
10RD
5A
E2 F2
F6
MEGA
FUSE
STUD
A14AA
6RD
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 2
BATTERY FEEDS, CAB
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
21JUN00 02
AE08-52366
CNA 23AUG02 DVD/ADDED F38 TO FUSE
BLOCK 1014.
56507Z
D
20A
A2 B2
F14
10A
G2 H2
F38
KEY SW & DIAG
HVAC CONTROL
A14
10RD
10A
C4 D4
F12
TBD
INSTR CLUSTER
C2 D2
CAB FUSE
BLOCK
(1014)
F42
PWR WIN/LOCK (DRIVER)
A14EG
10RD
30A
A4 B4
F13
IGNITION RELAY (1012) D4 SEE CH02_12
PWR WIN/LOCK(PASS)
A14AV
10RD
5A
C2 D2
F10
ACCESSORY RELAY (1012) G4
A14AS
10RD
A14FR
10RD
PWR WIN/LOCK (TRAVEL CREW)
E2 F2
F40
D4
G4
G4
G4
CH 3_04
CH 3_04
CH 03_01
CH 11_01
CH 2_01, 12, 15
SEE CH 2_01
CH 7_05
DOME LT/RADIO MEMORY CH 3_08 CH 8_05
15A
G2 H2
F2
A14AT
10RD
OR
CAB FUSE
BLOCK
(1012)
30A
A1 B1
F43
TBD
LIGHTED AIR SHIELD
OPTIONAL IGN RELAY (1013) G4 SEE CH 2_13
SEE CH 3_05
SEE CH 3_12
BLOCK
1&2
OR
BLOCK
1&2
BLOCK
3&4
A2 B2
F44
AIR SEAT/QUALCOM SEE CH 3_15
A14FM
10RD
CAB FUSE
BLOCK
(1013)
Figure 14 Battery Feeds, Cab
14

3.3. BATTERY, P. 3
J14T
12RD
J14AW
12RD
J14D
12RD
J94HC
14GY
J94H
14GY
5A
F2-C3 F2-D3
5A
F2-E3 F2-F3
25A
F2-G4 F2-H4
J14R
10RD
30A
F2-C4 F2-D4
J14S
12RD
J14MM
8RD
30A
F2-A2
F2-B2
15A
F2-E2 F2-F2
J56T
12OR
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 2
12V POWER DISTRIBUTION -
BATTERY (CONT)
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
30JUN00 03
AE08-52366
CNA 25SEP02 DVD/ADDED LCT SHIFT
RELAY, REMOVED J92UA.
56507Z
C
K14H
4RD
60A
A2
J26D
18TN
A14AA
6RD
20A W/BODY BUILDER
25A W/AUX TRLR SOCKET
F2-A3
F2-B3
J14V
6RD
J19
16GY
30A W/AIR ABS
25A W/HYD ABS
F2-E4 F2-F4
20A
F2-G3 F2-H3
40A
A6
J17D
10PK
J44
10RD
J44J
18GY
MEGAFUSE
J57T
12OR
40A
A1
15A
F2-G2 F2-H2
J90*
16BK
J90
12GY
PTC BODY BUILDER FEED CH03_01
STARTER RELAY CH02_15,CH04_01,02
POWER PARK MOTOR CH09_16
CAB FEED CH02_01,02,12,15
HYDRAMAX MOTOR RELAY CH09_08
FROM START SOLENOID
TAIL MARKER RELAY FEED CH09_10
STOP RELAY FEED CH09_10
TRAILER ABS RELAY CH09_11
TRLR RIGHT TURN RELAY CH09_11
TRLR LEFT TURN RELAY CH09_11
BODY ACCESSORY RELAY CH09_10
TRLR AUX CTR PIN RELAY CH09_11
REAR REMOTE POWER MODULE CH09_15
FUEL HEATER & WIF MODULE CH07_09,CH09_07
FORWARD REMOTE POWER MODULE CH09_15
PAM MODULE CH07_11
EATON AUTOSHIFT CH10_06
AIR ABS RELAY CH09_02
HYD ABS MOD RELAY CH09_06
HYD ABS ECU RELAY CH09_04
J14W
16RD
J14X
16RD
J14BB
14RD J72
12OR
J14J
12RD
J14J
12RD
J94A
12GY
J14M
10RD
*FUSEABLE LINK
IGN
RELAY
R9
CH02_14
SYSTEM
CONTROLLER
*
12BL
*
12BL
J14H
4RD
12RD
12RD
*
14GY
40A
A5
J92FB
16TN LCT SHIFT RELAY CHO3_17
10A
F2-C4 F2-D4
Figure 15 Battery
15

3.4. 1708 DATA LINK CHASSIS, P. 4
DRAWN
DATE
REV
CHK CHANGE
DATE
NAME
REFERENCE
PART NO.
RELEASE NO. SHEET
CHAPTER 2
1708 DATA LINK-CHASSIS
CIRCUIT DIAGRAM, 42/43/44/85/8600 & 73/74/7500
U00DAG9
19JUN00
52778H AE08052366 004
CNA1 31MAR09 ADDED MXT EFFECTS K 61817B
K3C(-)
18GY
W/V8-AVNT ENGINES
10
ECM 2 CONN
(6021)
ECM CONN
(6007)
11
K3A(+)
18DKBL
K3B(+)
18DKBL
J3C(+)
18DKBL
15
W/ALLISON WTEC
TRANSMISSION
K3C(+)
18DKBL
J3C(-)
18GY
CH9_04,37
17
ECU "S"
CONN BLACK
(7204F)
20
ECM 2 CONN
(6021)
10
TCM
BULKHEAD
(7214)
16
DASH
(4705F2)
W/ALLISON
HD WTEC
TRANSMISSION
C4
PASS THRU
AT DASH
(1701)
J1708
SPLICE
(4820)
21
40
J3-151
18GY
K3-151
18GY
J3+142
18DKBL
K3+142
18DKBL
J3B(+)
18DKBL
IDM2 /
CONN BODY LOCK
(6011)
10
2
1
K3A(-)
18GY
3
41
J3B(-)
18GY
15
20
C3
CH9_04,37
W/I6-HEUI ENGINES
N3A(-)
18GY
K3C(+)
18DKBL
J3A(+)
18DKBL
K3A(+)
18DKBL
K3D(+)
18DKBL
11
*K3A(+)
18BK
10
K3C(-)
18GY
K3B(-)
18GY
16 17
DASH/CENTER
CHASSIS
(9714)
(W/HYD ABS BRAKES)
21
11
ENGINE
(4103)
IDM2
(6011)
11
J3D(-)
18GY
J3A(-)
18GY
N3A(+)
18DKBL
K3B(-)
18GY
14
J1708
SPLICE
(4820)
W/I6-EGR ENGINES
J3B(-)
18GY
2
3
W/EATON GEN3
TRANSMISSION
LE3(-)
18GY
LE3(+)
18DKBL
(7909)
10
11
A3B(+)
16DKBL
A3B(-)
16GY
CH2_04A
K3A(+)
18DKBL
* W/ MXT
Figure 16 1708 Data Link Chassis
16

3.5. SWITCH DATA LINK, P. 5
T3BB(+)
18DKBL
SWITCH
PACK
(1101)
D E
E3X(-)
18GY
A3Z(-)
18GY
A3J(+)
18DKBL
D3AA(-)
18GY
DOOR POD
SIGNAL
(3202)
D C
E3W(+)
18DKBL
DOOR POD
PASSENGER
(3204)
A B
ELECT SYSTEM
CONTROLLER
(1600)
30 29
A3Y(+)
18DKBL
D3Y(+)
18DKBL
A3K(-)
18GY
T3AA(-)
18GY
RIGHT CREW
DOOR POD
(3208)
B A
E3X(-)
18GY
T3AA(-)
18GY
DOOR POD
SIGNAL
(3202)
C D
D3B(+)
18DKBL
D3BB(+)
18DKBL
A3P(-)
18GY
T3BB(+)
18DKBL
A3W(+)
18DKBL
D3CC(-)
18GY
CREW
DOOR
(2600)
E B
D3Z(-)
18GY
A3N(+)
18DKBL
DOOR POD
SIGNAL
(3209)
C D
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 2
SWITCH DATA LINK
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
25AUG00 05
AE08-52366
E3W(+)
18DKBL
DOOR POD
DRIVER
(3200)
B A
A3E(+)
20DKBL
A3X(-)
18GY
DOOR POD
SIGNAL
(3209)
C D
A3F(-)
20GY
LEFT CREW
DOOR POD
(3208)
B A
PEC 16JAN01
Figure 17 Switch Data Link
17

3.6. DRIVETRAIN 1939 DATA LINK (CAB), P. 6
Figure 18 Drivetrain 1939 Data Link (Cab)
18

3.7. DRIVETRAIN 1939 DATA LINK (CHASSIS), P. 7
Figure 19 Drivetrain 1939 Data Link (Chassis)
19

3.8. GROUNDS CHASSIS, P. 8
J94-GHD
18WH
J94-GHF
18WH
J94-GHE
18WH
J94-GHA
14WH
J94-GHB
14WH
J94-GHC
14WH
STARTER
GND
(4036)
J94-GA
12WH
J5M(D)
20WH
PRIMARY IGN RELAY GND CH02_14
J94-GAB
18WH
HYD MOD PUMP RELAY GND CH09_06
J11-GD
18WH
ABS WARN LIGHT RELAY GND CH09_06
J11-GL
4WH
J5M(S)
20 SHLD
WIPER MOTOR GND CH03_09
J94-GAA
18WH
ABS EVENT RELAY GND CH09_06
J11-GPM
14WH
REAR REMOTE SOLENOID POWER MOD
GND CH09_15
AIR ABS GND CH09_02
J94-GH
10WH
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 2
GROUNDS, CHASSIS
U00JXP9
52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
26MAY00 08
AE08-52366
J82-G
16WH
J1939 GND CH09_15
J94-GAD
18WH
AIR ABS GND CH09_02
AIR ABS GND CH09_02
HYD ABS GND CH09_04
J11-GJ
10WH
SYSTEM CONTROLLER SHD GND CH09_15
ABS ECU POWER RELAY GND CH09_02
HYD ABS GND CH09_04
GND
(4005)
(4006)
J11-G
12WH
FWD REMOTE POWER MOD CH09_15
J11-GQR
14WH
FWD CHASSIS GND CH03_6, CH08_02
HYD ABS MOD GND CH09_04
J11-GA
14WH
J94-GAC
18WH
REAR CHASSIS GND
CH07_08; CH08_01,02; CH09_01,09
J11-GPN
16WH
J11-GQS
14WH
(FWD ONLY)
(FWD AND REAR)
FWD REMOTE POWER MOD CH09_15
PEC 16JAN01
Figure 20 Grounds Chassis
20

3.9. GROUNDS CHASSIS, P. 9
J11-GAM
12WH
J61-G
18WH
J11-GPN
16WH
J11-GPM
16WH
J90-GM
12WH
POWER PARK GND
J11-GBR
18WH
TRAILER RIGHT TURN RELAY CH9_11
TRAILER LEFT TURN RELAY CH9_11
J11-GL
4WH
J19-GA
16WH
J11-GM
8WH
POWER PARK GND
TRAILER AUX CENTER PIN RELAY CH9_11
EATON AUTOSHIFT GND
J11-GH
8WH
FUEL HEATER RELAY CH9_07
J56-GH
18WH
GND
(4005)
(4006)
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 2
GROUNDS, CHASSIS
U00JXP9
52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
26MAY00 09
AE08-52366
J90-G
16WH
J19-G
18WH
J11-GW
18WH
CRANK INHIBIT W/AUTO NEUTRAL CH10_05
BODY BUILDER GND CH9_10
WORK LIGHT GND CH08_05
J57-GH
18WH
ACCESSORY BODY BUILDER RELAY CH9_10
J44-GA
16WH
J17-GR1
18PK
J11-GBG
12WH
FUEL FILTER WARNING LIGHT GND CH07_09
J11-GBB
12WH
TRAILER SOCKET GND CH9_11
STARTER GND
(4036)
J65-G
18WH
FLOW SWITCH GND CH09_8
J72-G
18WH
TRAILER ABS CENTER PIN RELAY CH9_11
J44-G
10WH
PAM MODULE CH7_11
FORWARD REMOTE POWER MODULE CH9_15
AIR SUSPENSION SOLENOID CH9_17
HYDRAMAX MOTOR CH9_08
PEC 16JAN01
Figure 21 Grounds Chassis (Cont.)
21

3.10. GROUNDS IP, P. 10
Figure 22 Grounds IP
22

3.11. GROUNDS IP, P. 11
A28-GC
18TN
A62-GC
18WH
A23-GA
18WH
A21-G
16WH
GND STUD
(1858)
(1862)
(1552F)
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 2
GROUNDS, IP
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
9AUG00 11
AE08-52366
A188
18DKBL
PREMIUM TRIM GND
CH3_03
A81-GA
12WH
A11-GDX
16WH
A62-GD
18WH
A81-G
12WH
TRANSMISSION GND
CH10_03
A41-G
18WH
A11-GBA
18WH
A81-GB
12WH
COURTESY LIGHT DRV CH8_04
TRANSMISSION GND
CH10_03
A11-GDW
18WH
D
E
BUSS
BAR
F
G
J
H
A
K
B
C
GROUND
(1003)
A81-GC
12WH
COURTESY LIGHT PASS CH8_04
A11-GDV
18WH
A11-GAL
12WH
POWER WINDOW / LOCK DRV CH3_04
OPT IGN RELAY GND CH2_13
POWER WINDOW / LOCK PASS
TRAVEL CREW CH3_05
POWER WINDOW / LOCK PASS CH3_04
SNOW VALVE
SWITCH
(1901)
A62-GF
16WH
A186
18DKBL
POWER WINDOW / LOCK DRV
TRAVEL CREW CH3_05
A11-GH
8WH
IP AIR HORN SW
CH3_06
A11-GDY
12WH
SEE CH03_07
10
ETHER START
SWITCH
(1010)
SEE
CH05_02
5B
SEE CH05_03
SHIFTER GND CH10_01
AUTO NEUTRAL LIGHT
MIRROR SWITCH
SEE CH10_05
PEC 16JAN01
Figure 23 Grounds IP
23

3.12. IGNITION CAB, P. 12
Figure 24 Ignition Cab
24

3.13. IGNITION CAB, P. 13
DRAWN
DATE
REV
CHK CHANGE
DATE
NAME
REFERENCE
PART NO.
RELEASE NO. SHEET
CHAPTER 2
12 VOLT POWER DISTRIBUTION - IGNITION
CAB (CONT)
CIRCUIT DIAGRAM, 42/43/44/85/8600 & 73/74/7500
U00JXP9
09AUG00
P52778H AE08052366 013
CNA1 31MAR09 ADDED TRANSFER CASE L 61817B
CONNECTION
5A
E2
CAB FUSE BLOCK
(1011)
A14FJ
10RD
F6
A
OFF
A2
A13FA
10PK
OPTIONAL WARNING
LIGHTS
CH7_08
J4
S
F34
S
C2
G4
S
B2
I
A59J
18BK
REMOTE STOP
RELAY CH9_31
10A
A15
18RD
J3
S
I
A49E
18GY
A1
BATTERY FEED
CH2_02
G3
A
A12AB
18LTBL
86
I
F30
A13FB
10PK
DATA LOGGING RELAY
(1008) CH3_35
30
ACCESSORY RELAY
CH2_01
CENTER PIN DIODE
(1906) CH9_38
A13
16PK
TACHOGRAPH
(1662) CH3_34
A12
18LTBL
5TH WHEEL INTERLOCK RELAY
(1016) CH9_39
87A
I
5A
C
5A
87
A59H
18BK
A13DB
18PK
OFF
A
F33
A11-GBA
18WH
A13L
18PK
CAB FUSE BLOCK
IGNITION
(1013)
A
B1
A11-GAM
16WH
F28
A13LA
18PK
CAB FUSE BLOCK
(1013)
A
C1
CAB FUSE BLOCK
(1013)
I
DIODE ASSY
(1106M)
HA13A
16PK
KEY SWITCH
(1100)
D1
A13DA
18PK
CH2_11
A86P
16LTGN
A13DD
18PK
CH3_13
D
E1
F2
F2
A21C
16TN
SNOW VALVE SWITCH
CONNECTOR CH5_03
GND
A13DB
18PK
2 WAY RADIO
CH3_10
A
F1
7.5A/10A
G2
F31
10A
ETHER START
CH5_02
85
OFF
H2
A13DH
18PK
S
E2
SATELLITE COMMUNICATION
QUALCOMM-IMCT SYSTEM
CH3_14
F29
A49C
18GY
OFF
10A
A13F
16PK
B
LIFT AXLES
CH9_25
A13E
16PK
A
5A
B
F32
D2
10A A13A
16PK
A13B
16PK
TELEMATICS
CH3_22
TELEMATICS GEN I MODULE
(1J) CH3_35
7.5A
IGN
16PK
TRANSFER CASE
(J2A) CH10_27
Figure 25 Ignition Cab (Cont.)
25

3.14. IGNITION FEEDS, CHASSIS, P. 14
Figure 26 Ignition Feeds, Chassis
26

3.15. START, P. 15
Figure 27 Start
27

CAB ACCESSORIES (CHAPTER 3)
4.1. CIGAR LIGHTER AND POWER FEEDS, P. 1
Figure 28 Cigar Lighter and Power Feeds
28

4.2. CB POWER, P. 2
Figure 29 CB Power
29

4.3. COMPASS AND TEMPERATURE DISPLAY, P. 3
DRAWN
DATE
REV
CHK CHANGE
DATE
NAME
REFERENCE
PART NO.
RELEASE NO. SHEET
CHAPTER 3
COMPASS AND
TEMPERATURE DISPLAY
CIRCUIT DIAGRAM, 42/43/44/85/8600 & 73/74/7500
U00JXP9
25AUG00
52778H AE08052367 003
CNA1 31MAR09 ADDED MXT EFFECTS D 61817B
G
C41A
18GY
A41B
18GY
C62F
18DKBL
G
PANEL LIGHT
BUSS BAR
(1002)
SEE CH08_10
A
COMPASS/TEMP
MODULE
GROUND
12V
IGN
DIMMER
TEMP
+
TEMP
-
A41A
18GY
1
CONSOLE / IP PREMIUM
/ *PREMIUM ROOF CONN
(2503)
C
B
B
AUX FWD /
DASH
(4305)
M41
18GY
M41A
18GY
CAB FUSE
BLOCK
(1012)
J41A
18GY
J41
18GY
H
38
PASS THRU
(1701)
A62F
18DKBL
D
DOME / READING LIGHT
COMPASS / TEMP UNIT
(2117)
67
4
3
C41
18GY
C41B
18GY
C41-G
18WH
B1
A1
F23
5A
A41
18GY
2
TEMP SENDER
(8601)
10
E
A41-G
18WH
H
GROUND
(1003)
A
* W/ MXT
Figure 30 Compass and Temperature Display
30

4.4. FRONT DOORS WINDOWS AND LOCKS (POWER), P. 4
DRAWN
DATE
REV
CHK CHANGE
DATE
NAME
REFERENCE
PART NO.
RELEASE NO. SHEET
CHAPTER 3
FRONT DOORS
WINDOWS AND LOCKS (POWER)
CIRCUIT DIAGRAM, 42/43/44/85/8600 & 73/74/7500
U00JXP9
25AUG00
52778H AE08052367 004
CNA1 31MAR09 ADDED MXT CIRC A11-GH D 61817B
WINDOW
POWER
A3W(+)
18DKBL
C
A3X(-)
18GY
D
A3P(-)
18GY
A
DOOR
POD SIGNAL
(3202)
C
A81-GA
12WH
E3W(+)
18DKBL
A
E3W(+)
18DKBL
E81B
12LTGN
E83A
14LTGN
30A
F16
E81E
14LTGN
A3
E83A
14LTGN
A
E81E
14LTGN
B
DOOR / IP
(3204)
DRIVER
CH3_05
DOOR
LOCK
(3203)
A A
D
DATA +
DOOR
POD
A81-GB
12WH
LOCK
B
NEGATIVE
STUD
(1858)
C
29
A81A
12LTGN
E
WINDOW
WINDOW
MOTOR
(3100)
E81B
12LTGN
A81B
12LTGN
POD SIGNAL
(3202)
B
ADDRESS 2
GND
E
D
F15
G
B
WINDOW
ADDRESS 1
DATA -
LOCK
A3N(+)
18DKBL
LOCK
ADDRESS 2
GND
A3Y(+)
18DKBL
D
A3F(-)
20GY
C
A81-G
12WH
G
*A11-GH
8WH
DOOR
POD LOAD
(3201)
A
D
E3X(-)
18GY
WINDOW
MOTOR
(3100)
E81-GA
12WH
E3X(-)
18GY
E81-GA
12WH
30
SYSTEM
CONTROLLER
(1600)
E83E
14LTGN
E81A
14LTGN
B3
E81A
14LTGN
CAB FUSE
BLOCK
(1011)
C
B
A3Z(-)
18GY
B4
B
B
WINDOW
ADDRESS 1
DATA -
DOOR / IP
(3200)
LOCK
DOOR
LOCK
(3203)
30A
E83E
14LTGN
CAB FUSE
BLOCK
(1011)
A
PASSENGER
A4
A81-GC
12WH
POWER
B
C
D
A
DOOR
POD LOAD
(3201)
DATA +
DOOR
POD
A3E(+)
20DKBL
A11-GH
10WH
* W/ MXT
Figure 31 Front Doors Windows and Locks (Power)
31

4.5. CREW DOORS WINDOWS AND LOCKS (POWER), P. 5
DRAWN
DATE
REV
CHK CHANGE
DATE
NAME
REFERENCE
PART NO.
RELEASE NO. SHEET
CHAPTER 3
CREW DOORS
WINDOWS AND LOCKS (POWER)
CIRCUIT DIAGRAM, 42/43/44/85/8600 & 73/74/7500
U00JXP9
25AUG00
52778H AE08052367 005
CNA1 31MAR09 REVISED AND REDRAWN D 61817B
ADDRESS 2
B A
C
D3BB(+)
18DKBL
A3Z(-)
18GY
C
D
B
D3Y+)
18DKBL
A81D
12LTGN
30A
G1
D3Z(-)
18GY
WINDOW
DOOR
POD
WINDOW
T8A
18WH
B
RIGHT CREW
DOOR POD
(2602)
GND
B
C
A
DOOR
POD SIGNAL
(3209)
DOOR
POD LOAD
(3210)
WINDOW
ADDRESS 1
DATA -
LOCK
E
D
D
A
E
G
A
DOOR
POD LOAD
(3210)
T8A
18WH
T81E
12LTGN
T83C
12LTGN
D
T81F
12LTGN
A
T3BB(+)
18DKBL
T8B
18WH
D81-GB
12WH
CH3_04
F43
A81-GC
12WH
E
LEFT
CREW
T3AA(-)
18GY
T83F
12LTGN
B
RIGHT
CREW
D3CC(-)
18GY
D81-GD
12WH
C
T81F
12LTGN
D81C
12LTGN
E
F
B
D81-GE
18WH
B
DOOR
LOCK
(3211)
B
A
CAB FUSE BLOCK
(1014)
D81-GF
12WH
WINDOW
MOTOR
(3002)
ADDRESS 2
A
F
D81-GC
12WH
T3BB(+)
18DKBL
H1
F37
T81E
12LTGN
T3AA(-)
18GY
DATA +
DATA -
LOCK
LOCK
POWER
GND
C
D
A
G
DATA +
DOOR
POD
LOCK
WINDOW
POWER
B
C
B
C
A
D3B(+)
18DKBL
DOOR
POD SIGNAL
(3209)
A
LEFT CREW
DOOR POD
(2601)
D
A81C
12LTGN
F
DOOR
LOCK
(3211)
A
T81C
12LTGN
A3Y(+)
18DKBL
T83F
12LTGN
T83C
12LTGN
T81C
12LTGN
ROOF / IP
CREW DOOR
(2600)
T81-GD
12WH
B
A81-GB
12WH
CAB FUSE BLOCK
(1014)
30A
CH3_04
B1 A1
D3AA(-)
18GY
CH3_04
E
T81-GD
12WH
WINDOW
MOTOR
(3002)
D81D
12LTGN
D81-GG
18WH
D
CH3_04
T8B
18WH
Figure 32 Crew Doors Windows and Locks (Power)
32

4.6. HORN, DUAL ELECTRIC, P. 6
M11-GC
12WH
5
AIR
HORN
A9M
18GY
AIR
HORN
A4
CAB/DCM
(1800)
A85B
20GY
20
M85E
16GY
B9V
18GY
E
SYSTEM
CONTROLLER
BROWN FRONT
(4007)
A9V
18GY
CITY
HORN
3
SYSTEM
CONTROLLER
(1600)
ZERO
VOLT
REF
20
D
10
M11-G
12WH
A9H
20GY
A85K
18GY
A62R
18DKBL
F
GROUND
ADAPTER
(1003)
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 3
HORN, DUAL ELECTRIC
U00EDL2
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
19JUN00 06
AE08-52367
A85C
20GY
B
J11-G
12WH
B10
3
A62-GF
18WH
A
RIGHT SIDE
ELECT HORN
(8312)
J11-GJ
10WH
13
ELEC
HORN
SW
(4006)
GND 2
B85B
18GY
C
A
CLOCK
SPRING
(1809)
M85-GD
16WH
W/INSTRUMENT PANEL HORN SWITCH
E
PANEL LIGHT
BUSS BAR
(1002)
B
B85C
18GY
18
13
10
FWD CHASSIS/DASH
(4301)
M11-GD
12WH
A85L
18GY
A85C
20GY
B11
A
LEFT SIDE
ELECT HORN
(8311)
2B
HORN
SWITCH
(1018)
M85-GE
16WH
8
20
B9R
18GY
M85L
16GY
M85-GA
16WH
M85-GC
16WH
B
A
(8301)
M85J
16GY
M85K
16GY
J85AA
16GY
SEE CH08_08
GROUND
ADAPTER #1
(8800)
GROUND
ADAPTER #2
(8801)
RADIATOR
A
RADIATOR
GND
(8600)
PEC 16JAN01
Figure 33 Horn, Dual Electric
33

4.7. MIRRORS (HEATED, LIGHTED AND POWER), P. 7
CHAPTER 3
MIRRORS (HEATED, LIGHTED & POWER)
DATE
CHK
NAME
NAVISTAR, INC
DRAWN
REV REFERENCE
CHANGE
THIS PRINT IS PROVIDED ON A RESTRICTED BASIS AND IS NOT TO
BE USED IN ANY WAY DETRIMENTAL TO THE INTEREST OF
NAVISTAR, INC.
RELEASE NO. SHEET
PART NO.
DATE
CIRCUIT DIAGRAM,
-
-
91680J
AE08052367 007
JJHD 28SEP12 ADDED HTD HD MIR EFCT E 91680J
20OR
18BK
DOOR / IP
MIRROR
(3000)
18OR
18YL
18LTGN
18BK
18BK
GROUND
(1003)
CH2_11
A78-GB
16WH
A58S
16BN
D
LIGHT
HEATER
B
L/R
AXIS
F
PASSENGER
POWER
MIRROR
20BL
20OR
A2
A4
B2
B4
A78-GE
16WH
16BL
CAB FUSE
BLOCK
(1011)
B
A62D
18DKBL
F17
A78D
18LTGN
E
H
A58F
16BN
A78E
18LTGN
10A
20WH
G2
H
F18
A58U
18BN
F
D
A78J
16LTGN
LIGHT
HEATER
L/R
AXIS
F
18BN
DRIVER
POWER
MIRROR
10A
A1
A
20YL
DOOR / IP
MIRROR
(3003)
A58T
18BN
A11-GDY
12WH
MIRROR
SWITCH
ANT GND
G
C
ANT GND
A78F
18LTGN
CAB FUSE
BLOCK
(1011)
A78-GD
16WH
F21
B
H2
18RD
CH8_10
D
A78H
16LTGN
18DKGN
E
C
G
A
U/D
AXIS
CAB FUSE
BLOCK
(1012)
A1
18RD
A3
B1
B3
D
16BL
CAB FUSE
BLOCK
(1012)
A78-GC
16WH
J
7.5A
20BL
J
G1
B
H
F
20YL
H1
A78L
18LTGN
A78P
16LTGN
20BN
A
A78M
16LTGN
C
5A
D1
C1
A78
14LTGN
E
C
G
A
U/D
AXIS
G
B1
F13
F21
B4
5A
D1
CAB FUSE
BLOCK
(1013)
A78L
16LTGN
A78-GD
16WH
SYSTEM CONTROLLER
/ BOOSTER CONN
(1601)
W/ MXT
N/ MXT
W/ MXT
63
PASS THRU
(1701)
A B
A B
M11-G
12WH
A E
M11-GD
12WH
LEFT SIDE DASH
MTD GROUND
(4006)
LEFT HEATED
HOOD MIRROR
RIGHT HEATED
HOOD MIRROR
FORWARD
GROUND
(4308)
M78AC
16LTGN
M78BC
16LTGN
M78-GC
16WH
A78J
16LTGN
A78DC
16LTGN
M78-GA
16WH
M78-GB
16WH
M78-GB
16WH
M78-GA
16WH
GROUND
ADAPTER
(8800)
W/HTD HOOD
MIR
W/SINGLE HEATED
HOOD MIRROR
W/DUAL HEATED
HOOD MIRROR
Figure 34 Mirrors (Heated, Lighted and Power)
34

4.8. RADIO (ENTERTAINMENT), SPEAKERS, P. 8
A86M
18LTGN
A86-G
20WH
A62
18DKBL
4
ROOF
CONN
(2000)
8 6
PREMIUM
ROOF
CONN
(2503)
GND STUD
(1851)
1
CAB FUSE BLOCK
(1011)
LEFT
CONSOLE
SPEAKER
(2305)
A B
+ -
C86K
18LTGN
CLUSTER
CONN
(1500)
7
CHAPTER 3
RADIO (ENTERTAINMENT), SPEAKERS
U00JXP9
52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
25AUG00 08
AE08-52367
CNA 16MAR04 REV PINOUTS ON CONN 1300,
ADDED CH8_03 CALLOUT, 1011
WAS 1012, FUSE F21 WAS F23.
50174W
E
5
RIGHT
CONSOLE
SPEAKER
(2304)
A B
+ -
W/PREMIUM
CAB TRIM
ONLY
13
LEFT REAR
SPEAKER
(2302)
A B
+ -
NOTE: REAR SPEAKER WIRING IS THE
SAME FOR STD, EXTENDED AND
TRAVEL CREW CAB.
9
A86J
20LTGN
C86H
18LTGN
RIGHT REAR
SPEAKER
(2301)
A B
+ -
10A
D4
C4
F12
10A
H1
G1
F1
D86B
18LTGN
D86D
18LTGN
C86L
18LTGN
C86J
18LTGN
D86C
18LTGN
D86E
18LTGN
1
CAB FUSE BLOCK
(1011)
A86D
20LTGN
A86L
20LTGN
A86K
20LTGN
A86H
20LTGN
A62E
20DKBL
A86C
20LTGN
A86B
20LTGN
A86A
18LTGN
LEFT CONSOLE
RIGHT CONSOLE
RADIO POWER
RIGHT FRONT +
LEFT FRONT +
LEFT REAR -
RADIO MEMORY
PANEL LIGHT
RIGHT REAR -
RIGHT REAR +
LEFT REAR +
GROUND
8
4
7
6
12
14
11
13
16
10
9
15
A86
18LTGN
A86E
20LTGN
5
3
7
10
4
11
12
1
7
6
8
2
GROUND
LEFT REAR +
RIGHT REAR +
RIGHT REAR -
LEFT REAR -
PANEL LIGHT
RADIO MEMORY
LEFT FRONT +
RIGHT FRONT +
RADIO POWER
RIGHT CONSOLE -
LEFT CONSOLE -
A11-GA
10WH
RADIO
CONN
(1301)
RADIO
CONN
(1300)
PREMIUM
RADIO
AM-FM CASSETTE
BASE RADIO
W/PREMIUM
RADIO ONLY
3
PARK LIGHTS
PARK
LIGHTS
SEE
CH08
PG
03
Figure 35 Radio (Entertainment), Speakers
35

4.9. WINDSHIELD WIPER AND WASHER PUMP, P. 9
DRAWN
DATE
REV
CHK CHANGE
DATE
NAME
REFERENCE
PART NO.
RELEASE NO. SHEET
CHAPTER 3
WINDSHIELD WIPER AND WASHER PUMP
CIRCUIT DIAGRAM, 42/43/44/85/8600 & 73/74/7500
U00JXP9
10AUG00
52778H AE08052367 009
CNA1 31MAR09 ADDED MXT EFFECTS G 61817B
DCM
CONNECTOR
(1800)
C1
22
B87A
18GY
*A87A
18GY
WIPER 0
PASS THRU
(1701-30)
24
12
GND
HI
2.2uF x2
PRK
A
C
1
A82A
20GY
B82
18GY
7
20YL
WASHER FLUID
LEVEL SENSOR
(4022)
2
WIPER 1
WIPER 1
WIPER HIGH
A82
20GY
6
SYSTEM
CONTROLLER
(1600)
J82-G
16WH
B9S
18GY
A87C
18GY
F
WIPER 0
A11-G
10WH
WASHER PUMP
20OR
A4
20RD
SYSTEM CONTROLLER
(4004)
TURN SIGNAL
SWITCH
(1810)
E
GND 2
(4006)
B11-GAA
18WH
5A
F1-C2
ZERO VOLT REF
SPLICE
(4830)
86
87
WIPER PWR
RELAY /
*ISO PWR
RELAY
(4003)
R1-5
30
87A
85
R2-2
R2-5
J82F
16GY
J82B
16GY
29
SYSTEM
CONTROLLER
(4004)
D3
J87KA
18GY
D6
A9V (250)
18GY
J87B
18GY
5
LO
R1-2
B82B
18GY
B9U
18GY
A5
20WH
12
A87B
18GY
LOW WASHER
FLUID LIGHT
DIGITAL
ZERO VOLT REFERENCE
MINIFUSE
BLOCK
(4001)
30
87A
85
R1-1
R1-3
R1-4
86
87
WIPER HI-LOW
POWER RELAY
/ *ISO PWR RELAY
(4003)
R2-1
R2-3
R2-4
20
D1
*J87BA
18GY
F1-D2
A3
WIPER 2
J11-GJ
10WH
3
J87C
18GY
*N87BA
16GY
J87KB
18GY
N87DB
18GY
J87CA
18GY
N87EA
18GY
J82L
16GY
J82H
16GY
J82P
16GY
J82RP
18GY
*J82FB
18GY
J82FA
18GY
*J82RP
18GY
J82HLP
16GY
C9
N87HA
18GY
A9H
20GY
20GN
8
WV50V
B+
4.4uH
x3
C/B
WIPER MOTOR
(4015)
A82B
20GY
B
D
B82A
18GY
2
WASHER PUMP
(4021 / *9745)
SYSTEM CONTROLLER
BLUE
(4008)
WASHER
1
B1
28
J82RH
18GY
WINDING
A11-GAA
18GY
23
A
11
WIPER 2
*J82HL
16GY
J82HL
16GY
NOTE:
ALL DASH LINES
REFER TO
RH- MRD MODULES.
* W/ MXT
*A11-GAA
18WH
A87A
20GY
*A87B
20GY
CENTER CHASSIS
/ *DASH
(9700 / *9714)
-VE STUD
(1852)
*N87KA
16GY
D2
N87DB
18GY
J87BB
18GY
J82FB
18GY
Figure 36 Windshield Wiper and Washer Pump
36

4.10. 2–WAY RADIO, P. 10
Figure 37 2–Way Radio
37

4.11. SWITCH PACK, OPTIONAL GAUGE PACK, P. 11
Figure 38 Switch Pack, Optional Gauge Pack
38

4.12. LIGHTED AIR SHIELD, P. 12
Figure 39 Lighted Air Shield
39

4.13. ROOF AUX. LOAD, P. 13
Figure 40 Roof Aux. Load
40

4.14. SATELLITE COMMUNICATION QUALCOMM-MCT AND IMCT SYSTEMS, P. 14
Figure 41 Satellite Communication Qualcomm-MCT and IMCT Systems
41

4.15. SELF CONTAINED AIR SEAT, P. 15
Figure 42 Self Contained Air Seat
42

4.16. DIGITAL CLOCK PTC, P. 16
Figure 43 Digital Clock PTC
43

4.17. TRANSMISSION ALLISON LCT COLUMN SHIFTER, P. 17
Figure 44 Transmission Allison LCT Column Shifter
44

4.18. HEATED SEATS FOR 7700 MODELS ONLY, P. 18
Figure 45 Heated Seats for 7700 Models Only
45

4.19. BACKUP CAMERA, P. 19
A12-G
18BK
J71BK
18LTGN
A12BK
18LTGN
A12RD
18RD
GB12RD
18RD
GB12BK
18LTGN
GB12-G
18BK
SAFTEY VISION
MONITOR CONNECTION
(9999)
BACKUP MONITOR
PROVISION
(6900A)
5A
C2 D2
CAB FUSE BLOCK
(1013)
BACKUP CIRCUIT
FOR MONITOR
(9997)
BACKUP LAMP
(4810)
CAB
GROUND
Figure 46 Backup Camera
46

4.20. XATA COMPUTER, P. 20
A98(-)
18GY
A98(+)
18DKBL
A11-GZ
18WH
A14Z
18RD
XATA COMPUTER
PROVISION
(734M)
5A
C2 D2
CAB FUSE
BLOCK
(1014)
J1708 PUBLIC (-)
CONN
(1661)
J1708 PUBLIC (+)
CONN
(1660)
Figure 47 XATA Computer
47

4.21. KEYLESS IGNITION SYSTEM, P. 21
EJ13DD
18PK
EC12AB
18LTBL
DS17
18PK
BP15
18RD
EJ13DD
18PK
EC12AB
18LTBL
DS17
18PK
BP15
18RD
START STOP
SWITCH SWITCH
ANT.
KEYSWITCH
CONTROL TO
SWITCH
(1100M)
KEYSWITCH
CONTROL TO
PLUG IP
(1100M)
Figure 48 Keyless Ignition System
48

12V CHARGING + CRANKING SYSTEM (CHAPTER 4)
5.1. I6 EGR ENGINES, P. 1
Figure 49 I6 EGR Engines
49

5.2. V8 AVNT ENGINES, P. 2
DRAWN
DATE
REV
CHK CHANGE
DATE
NAME
REFERENCE
PART NO.
RELEASE NO. SHEET
CHAPTER 4
CHARGING AND CRANKING
(V8-AVNT) ENGINES
CIRCUIT DIAGRAM, 42/43/44/85/8600 & 73/74/7500
U00JXP9
10AUG00
52778H AE08052368 002
CNA1 31MAR09 ADDED MXT EFFECTS G 61817B
G
TO ECM2 CLEAN
POWER/GND CONN
(A-12V,B-GND)
(6323F)
CH06_03
1/0RD
PASS THRU
AT DASH
(1701-8)
K17L
18PK
R12-3
K17K
18PK
100A
*K2A
2RD
B
86
C
ECM
NEGATIVE
(9260)
MEGA-FUSE
A17
18PK
BATTERIES
J17E
10PK
1/0RD
N14BA
10RD
NOTE:
FOR CIRCUIT K18 FUSELINK IS 10RS
FOR CIRCUIT K14H FUSELINKS ARE 2-12BL
FOR CIRCUIT K2 FUSELINKS ARE 2-12BL
FOR CIRCUIT K2A FUSELINKS ARE 2-10RS
* W/ MXT
J17D
10PK
ECM
POSITIVE
FEED
(9261)
R12-5
G
B
1/0RD
N97-G
10WH
1/0BK
N14AY
10RD
ALTERNATOR
J17S
18PK
N97AA
10RD
1/0BK
MAXIFUSE
BLOCK
(4000)
ENGINE
BLOCK
GND
ECM POWER/
STARTER SOLENOID
(4105-C)
1/0BK
K17C
10PK
GND
(4005/*4058)
J17E
10PK
K2-G
4WH
K11-GL
4WH
40A
A
B
ENGINE
ECM FEED
FUSE
(9254)
ECM2
(6020)
N14-G
10WH
ENGINE /
DASH
(4103-17)
FRAME
GND
CRANK MOTOR
SOLENOID
CRANKING
MOTOR
M
B S
4/0RD
K10-GC
1BK
K14H
4RD
J14H
4RD
GLOW PLUG
RELAY
(4057/*6010)
87
30
87A
85
STARTER
ISO & POWER
RELAY
(4003)
R12-1
R12-2
R12-4
K17L
18PK
2/0BK
14GY
FUSIBLE
LINK
K18
6PK
A
W/AUTO
NEUTRAL
CH10_05
23
4/0BK
A
R
J17
18PK
KEY SWITCH S
(1100_B)
LSD
*K14H
4RD
POWER STUD
(4075)
K2
4RD
FUSIBLE
LINKS
*K2-GA
2WH
*K17M
18PK
*A17
16PK
Figure 50 V8 AVNT Engines
50

5.3. CATERPILLAR, CUMMINS ISM ENGINES, P. 3
Figure 51 Caterpillar, Cummins ISM Engines
51

5.4. I6 HEUI ENGINES, P. 4
CHAPTER 4
I6-HEUI ENGINES
U00DLCK
58774T
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
12SEP03 04
AE08-52368
CNA 12SEP03 RELEASE FOR PRODUCTION. 58774T
-
SEE CH10_05
N/THERMAL
OVERCRANK
PROTECTION
100A
MEGAFUSE
A17
18PK
BATTERIES
K10-GC
1BK
J17E
10PK
K17M
18PK
NOTE:
WITH 4 GAUGE CHARGE CIRCUITS K2-G & K2 FUSELINKS ARE 2-12BL
WITH 2 GAUGE CHARGE CIRCUITS K2-GA & K2A FUSELINK ARE 2-10RS
WITH 1 GAUGE CHARGE CIRCUITS K2-GB & K2B FUSELINK ARE 3-12RS
J17
18PK
G
R
B
ALTERNATOR
2/0BK
W/THERMAL
OVERCRANK
PROTECTION
FUSIBLE
LINKS
K17L
18PK
FUSIBLE
LINKS
J17S
18PK
1/0RD
K2*
4RD
J17D
10PK
FRAME
GND
14GY
1/0BK
MAXIFUSE
BLOCK (4000)
J14H
4RD
KEYSWITCH S
(1100) B
ENGINE
BLOCK
GND
K14H
4RD
C ECM POWER
STARTER
(4101)
W/AUTO NEUTRAL
K17K
18PK
K17C
10PK
2/0RD
8
PASS THRU
AT DASH
(4014)
DASH PANEL
GND
(4005)
J17E
10PK
K2-G*
4WH
K11-GL
4WH
SEE NOTE
SEE NOTE
CRANKING
MOTOR
SOLENOID
CRANKING
MOTOR
THERMAL
OVERCRANK
(6316)
A
B
B S
M
G
2/0BK
46
ECM
(6007)
86
87
30
87A
85
STARTER
ISO & POWER
RELAY
(4003)
R12-1
R12-2
R12-3
R12-4
R12-5
FUSIBLE
LINK
17
ENGINE/
DASH
(4103)
FRAME
GND
Figure 52 I6 HEUI Engines
52

5.5. CATERPILLAR ENGINES, CUMMINS ISM AND WITH EATON ULTRASHIFT/DM2, P.
5
CHAPTER 4
CAT ENGINES, CUMMINS ISM &
W/EATON ULTRASHIFT/DM2
U00DLCK
58689K
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
17NOV03 05
AE08-52368
CNA 17DEC03 RELEASE FOR PRODUCTION. 58689K
-
J17D
10PK
KEY SWITCH
"S" TERMINAL
CH02_15,
CH10_18
K17S
16PK
DASH/ENG
(4103)
18
K2
4RD
ALTERNATOR
A17
18PK
DASH/
ENG
(4103)
NOTES:
FOR 4 GAUGE CHARGE CIRCUITS K2-FL & K2A-FL FUSELINKS ARE 2 - 12BL
FOR 1 GAUGE CHARGE CIRCUITS K2D-FL, K2E-FL & K2F-FL FUSELINKS ARE 3 - 10RS
FOR 1 GAUGE CHARGE CIRCUITS K2B-G & K2B
J17G
14PK
CRANK
MOTOR
SOLENOID
CRANKING
MOTOR
THERMAL
OVERCRANK
(6316)
B S
M
G
100 AMPS
J17
18PK
R12-1
MEGA FUSE
K17J
16PK
K17G
14PK
K10-GC
1BK
G
R
B
1BK
ENGINE
BLOCK
GND
(6303)
A
J17-G
18WH
R12-2
4BK
8
17
1RD
16
FRAME
GND
PASS
THRU
(4014)
STARTER
ISO & PWR
RELAY
(4003)
K11-GL
4WH
BATTERIES
NEG
STUD
(4005)
B
J17F
14PK
R12-4
J17-G
18WH
2BK
NOT W/
THERMAL
OVERCRANK
FUSIBLE
LINKS
K17F
14PK
K2-G
4WH
15
CAB
GND
(4005)
4RD
FUSIBLE LINK
14GY
J17S
18PK
30
86
87A
87
85
R12-5
Figure 53 Caterpillar Engines, Cummins ISM and with Eaton Ultrashift/DM2
53

5.6. I6 EGR ENGINES WITH AIR START, P. 6
KA17-G
10WH
KA17C
10PK
2/0BK
CHAPTER 4
I6-EGR ENGINES W/ AIR START
U00DLCK
59169P
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
05MAR04 06
AE08-52368
CNA 11MAR04 RELEASE FOR PRODUCTION. 59169P
SEE CH10_05
J17
18PK
100A
MEGAFUSE
N/ALLISON MD TRANS
J17
18PK
BATTERIES
A17
18PK
K17-G
10WH
J17E
10PK
G
R
B
ALTERNATOR
J17
18PK
NOTE:
WITH 4 GAUGE CHARGE CIRCUITS K2-G & K2 FUSELINKS ARE 2-12BL
WITH 2 GAUGE CHARGE CIRCUITS K2A-G & K2A FUSELINK ARE 2-10RS
WITH 1 GAUGE CHARGE CIRCUITS K2-GB & K2B FUSELINK ARE 3-10RS
2/0BK
FUSIBLE
LINKS
J17S
18PK
FUSIBLE
LINKS
1/0RD
J104K
18DKBL
K2*
4RD
J17D
10PK
J104CC
18DKBL
FRAME
GND
14GY
MAXIFUSE
BLOCK (4000)
1/0BK
J14H
4RD
W/ALLISON MD XMSN
(CH 10_05)
KEYSWITCH S
(1100) B
ENGINE
BLOCK
GND
K14H
4RD
C
ECM POWER
STARTER
(4101)
W/AUTO NEUTRAL
K17M
18PK
2/0RD
K17C
10PK
8
PASS THRU
AT DASH
(4014)
DASH PANEL
GND
(4005)
J17E
10PK
K11-GL
4WH
K2-G*
4WH
SEE NOTE
SEE NOTE
23
ECM 2
(6020)
86
87
30
87A
85
STARTER
ISO & POWER
RELAY
(4003)
R12-1
R12-2
R12-3
R12-4
R12-5
W/REMOTE
START/STOP
(CH09_31)
FUSIBLE
LINK
FRAME
GND
17
ENGINE/
DASH
(4103)
AIR START
SOLENOID
AIR START
ENGINE
(6398)
POWER
STUD
(GRID HEATER)
Figure 54 I6 EGR Engines with Air Start
54

FANS AND ENGINE ACCESSORIES (CHAPTER 5)
6.1. FAN WIRING, P. 1
Figure 55 Fan Wiring
55

6.2. ETHER START, P. 2
Figure 56 Ether Start
56

6.3. SNOW VALVE, P. 3
Figure 57 Snow Valve
57

6.4. FAN WIRING, CATERPILLAR AND CUMMINS, P. 4
Figure 58 Fan Wiring, Caterpillar and Cummins
58

ELECTRONIC ENGINES (CHAPTER 6)
7.1. ELECTRONIC ENGINE CONTROLS, I6–EGR ENGINES, P. 1
J97H
14VT
N14BD
10RD
N14BC
10RD
J97XA
10VT
K97S
16VT
K97E
16VT
INTAKE AIR
TEMP SENSORS
(6703)
(LOCATED ON
AIR INTAKE)
A
B
CHAPTER 6
ELECTRONIC ENGINE CONTROLS
(I6-EGR) ENGINES
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
10AUG00 01
AE08-52370
CNA 18MAY04 CIRCUIT K97AB WAS
K97-FL
20VT
59249M
F
10
K97K
18VT
J97TA
10VT
86
87
30
87A
85
ECM / IDM
MICRO RELAY
(4002)
M1-G4
M1-J4
M1-H3 M1-J3
M1-G3
N97-G
10WH
K97J
18VT
BAP
SENSOR
(1808)
1
3
2
K97-GV
16WH
5A
A2
B2
CAB FUSE
BLOCK
(1012)
F24
N97AA
10RD
18
7
B97Q
18VT
K97-GA
12WH
12
ECM2
(6021)
J97QA
18VT
5
A
ECM / IDM
NEGATIVE
(9260) BATTERIES
A99U
18VT
A99V
18VT
B99V
18VT
9
(6704)
GND
J97UA
16VT
K97C
18VT
4
2
K97AB
16VT
86
87
30
87A
85
IDM
PWR RELAY
(4003)
R8-1
R8-5
R8-3 R8-4
R8-2
1
PASS THRU
AT DASH
(4014)
A97P
18VT
K97M
16VT
J97J
18VT
4
A
ECM / IDM
POSITIVE
(9261)
K97
18VT
K97Y
12VT
1
ENGINE/
DASH
(4103)
B97AH
18VT
5A
F1-E1
F1-F1
MINI FUSE BLOCK
(4001)
K97AZ
16VT
B
K34-G
18WH
LOW
COOLANT
SENSOR
LT-(6400M)
RT-(6401) A B
6
6
7
J97P
18VT
K97LA
16VT
B97AE
18VT
24
K97-GW
16WH
A97Y
18VT
B99U
18VT
18
A99E
18VT
N14AY
10RD
J13S
14PK
19
C5
3
2
B97AF
18VT
K97F
16VT
1
IDM2
(6011)
J97LC
16VT
C10
DCM
CONN
(1800)
12
N14BA
10RD
C4
K97-G
10WH
B5
K99T
18VT
A
CLEAN POWER
& GROUND
(6323)
J99V
18VT
J97Y
18VT
6
K97T
10VT
B97Y
18VT
2
12
B97AD
18VT
A
J97TC
16VT
1
A
B
C
D
E
F
APS/IVS
(1804)
8
B99E
18VT
K97H
14VT
C2
A97Q
18VT
24
A13AH
10PK
5
K97X
10VT
K97UA
18VT
3
N14-G
10WH
K97Z
16VT
J97LD
16VT
FROM PRIMARY
IGNITION FEED
RELAY
J97HA
16VT
C6
K99S
18VT
K34A
18TN
B4
4
5
ECM2
(6020)
J99U
18VT
B
POWER/
STARTER
SOLENOID
(4105)
40A
A
B
ENGINE IDM
FEED FUSE
(9254)
4
J13CW
10PK
E2
21
B97P
18VT
J97LA
18VT
K97R
18VT
K97D
18VT
5
IDM2
(6011)
FROM PRIMARY
IGNITION
RELAY (R9-4)
(4003) CH 02_14
4
K97-GB
16WH
10A
F1-H4
F1-G4
MINI-FUSE BLOCKS
ENGINE ECM
(4001)
20A
F2-A4
F2-B4
MINI FUSE BLOCK
(4001)
J97JA
18VT
9
(4103)
C C
40A
B A
ENGINE ECM / IDM
POS FEED FUSE
(9258)
J97HB
14VT
N97B
10RD
K97MA
12RD
Figure 59 Electronic Engine Controls, I6–EGR Engines
59

7.2. ELECTRONIC ENGINE CONTROLS, I6-EGR ENGINE CRUISE CONTROL AND
BODY BUILDER CONNECTIONS, P. 2
Figure 60 Electronic Engine Controls, I6-EGR Engine Cruise Control and Body Builder Connections
60

7.3. ELECTRONIC ENGINE CONTROLS, (V8–AVNT) ENGINES, P. 3
DRAWN
DATE
REV
CHK CHANGE
DATE
NAME
REFERENCE
PART NO.
RELEASE NO. SHEET
CHAPTER 6
(V8-AVNT) ENGINES
CIRCUIT DIAGRAM, 42/43/44/85/8600 & 73/74/7500
U00JXP9
10AUG00
52778H AE08052370 003
CNA1 31MAR09 ADDED MXT EFFECTS H 61817B
B6
J13S
14PK
J97J
18VT*
N97-GA
10WH
R11-2
B2
7
F24
B97AD
18VT
C4
F1-E1
1
FROM PRIMARY
IGNITION FEED
RELAY
J97Y
16VT*
12
L92#141
18TN
A97Q
16VT*
2
3
K99S
18VT*
19
BAP
30
3
18
A
6
A
J97HB
18VT
B5
K97Z
16VT*
ENGINE
/ DASH
(4103)
J97P
16VT*
C2
A97P
16VT*
A
K97-GV
16WH
BATTERIES
5
1
A
J99U
16VT*
6
8
1
A99V
16VT*
J97LA
18VT*
F1-G4
87
87A
V8 IDM
POWER RLAY
(4003)
R8-5
N14-G
10WH
5
ECM2
(6020)
R8-4
A
ENGINE ECM
FEED FUSE
(9254)
K97F
16VT*
18
C6
K97-GA
12WH
87
87A
R11-5
R11-4
A99W
16VT*
A
B
D
(1804)
MINI FUSE
(4001)
N14AY
10RD
A13AH
10PK
A99E
18VT*
J97TA
10VT*
2
K97Y
12VT*
B99U
18VT
N14BA
10RD
J97JA
18VT*
K97K
18VT*
12
10
B97Q
18VT
4
ENGINE
BLOCK
GND
K97D
18VT*
2
K97-G
10WH
K97LC
16VT*
A2
CAB FUSE
BLOCK
(1012)
B97AE
18VT
J13CW
10PK
5A
B97Y
18VT
12
&J97HA
16PL
N97AA
10RD
ECM2
(6021)
K97C
18VT*
N97-G
10WH
2
4
6
SENSOR
1
A99U
16VT*
B
FROM PRIMARY
IGNITION
RELAY (R9-1)
(4003)
CH2-14
B97P
18VT
B4
B97AF
18VT
J97LD
16VT*
1
K97M
16VT*
K97T
10VT*
3
ECM -VE
(9260)
K34-G
16WH
K97X
10VT*
J97TC
10VT*
J99V
16VT*
K99T
18VT*
7
B99E
18VT
10A
F1-H4
K97-GW
16WH
MINI-FUSE BLOCKS
ENGINE ECM
(4001)
86
30 85
R8-1
R8-3
K97-GB
16WH
R8-2
40A
9
4
86
85
ECM ISO &
POWER
RALAY
(4003)
R11-1
R11-3
K97UA
18VT*
ECM +VE
(9261)
K97LA
16PL
E
F
APS/IVS
B99W
18VT
24
21
K97H
16PL
B99V
18VT
E2
C5
B
ECM POWER/
STARTER
SOLENOID
(4105)
4
K97
18VT*
B
J97H
18VT*
4
10A
F2-A4
J97LC
16VT*
MINI-FUSE
BLOCK
(4001)
B97AH
18VT
J97LB
18VT*
ECM2 CLEAN
POWER & GROUND
(6323)
24
J97QA
16VT*
C10
IDM2(6011)
K34A
18TN
5A
3
PASS THRU
AT DASH
(1701)
DCM
CONN
(1800)
A97Y
16VT*
(1808)
5
J97XA
10VT*
B
K97AZ
18VT*
&J97UA
16PL
A
C
F1-F1
SEE CH10_20 FOR EATON DM3 TRANS
&J97HB
16PL
J97UA
18VT
&K97LA
10PL
J97HA
18VT
& W/ MXT
* W/ MXT VT IS
REPLACED BY PL
8
K97J
18VT*
20
K3B(+)
18DKBL
21 K3B(-)
18GY
17
&SPD-SIG
18PL
17
19
&GPS
18PL
&L47C125
18TN
10
&L47B125
18TN
&L47#125
18TN
D
41
L5A(-)1
18GN
13
12
L5A(+)1
18YL
TO
DRIVETRAIN
J1708
CH2_04
XMSN CONTROL
MODULE
(7151&R)
CONN BODY
LOCK
(7906F)
25
LOW
COOLANT
SENSOR
(6400M)
TO
DRIVETRAIN
J1939
CH2_07,07A
F2-B4
TRANS
CONTROL
MODULE
(7151&R)
ATA-
KL.87
(VPWR)
NOT
USED
KL.87
(VPWR)
KL.31B
APS
VBREF
IVS
VSS+
ATA+
KL.31
CAN+
MPR
(LSD)
KL.31
KL.15
DDS
CAN-
ECL
BAP
Figure 61 Electronic Engine Controls, (V8–AVNT) Engines
61

7.4. ELECTRONIC ENGINE CONTROLS, V8–AVNT ENGINE CRUISE CONTROL AND
BODY BUILDER CONNECTIONS, P. 4
K97DF
18VT
K97AR
18VT
K46A
18GY
K47B
18GY
K97CB
18VT
K97CC
18VT
K46B
18GY
B9S
18GY
B9VH
18GY
B70C
18OR
B70CA
18OR
B70CB
18OR
B9VG
18GY
C2
CAB FUSE
BLOCK
(1012)
W/HYD
BRAKES
B9
10
ECM2
(6021)
B9V
18GY
K47
18GY
33
SYSTEM
CONTROLLER
(1600)
18
PASS THRU
AT DASH
(4014)
A96
20VT
F
XMSN/
DASH
(4705)
L17E
18PK
J17J
18PK
B70C
18RD
5A
E2
F2
F24
IGNITION FEED FROM
INGITION RELAY
A17J
18PK
B9R
18GY
17
B96
18VT
A17H
18PK
A4
A9H
20GY
C11
8
ECM2
(6020)
A13AH
10PK
A2
K47A
18GY
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 6
ELECTRONIC ENGINE CONTROLS - V8-AVNT
ENGINE CRUISE CONTROL & BODY BUILDER CONNECTIONS
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
10AUG00 04
AE08-52370
CNA 9SEO02 DVD/RMVD ENG/TRANS CONN
(7800).
56507Z
D
10
A96A
20VT
D8
D7
DCM
CONN
(1800)
1210
OHM
6190
OHM
2370
OHM
RESUME
SET
CRUISE
ON
CRUISE
OFF
AIR
HORN
CITY
HORN
STEERING WHEEL SWITCHES
A
B
C
D
9
3
CLOCK
SPRING
(1809)
A
B
C
D
B9VF
18GY
A9V
18GY
A70C
20RD
B12
TRANS SPEED
SENSOR
(7601)
A
B
B
A
STOP LIGHT
(1814)
6.8V
150
7
TURN SIGNAL
SWITCH
(1810)
NOTE:
ONLY ONE STOP LIGHT SWITCH USED
W/AIR BRAKES & W/TRACTOR
21
ECM2
(6020)
20
19
17
11
14
SET PTO SPEED - SCS
VARIABLE PTO ENABLE - RVAR
PRESET PTO ENABLE - RPRE
VEHICLE SPD SENSOR CAL CNTRL - VSS_CAL
RESUME PTO SPEED - RAS
TACHOMETER CONTROL - TACH
BODY
BUILDER
TO FUEL FILTER
(6708) SEE CH07_09
D
C
STOP LIGHT
#2
W/AIR BRAKES
(1824)
6.8V
150
D
C
STOP LIGHT
#1
W/AIR BRAKES
(1823)
6.8V
150
1200
1200
A
B
C
D
CLUTCH
SWITCH
(1807)
B17J
18PK
B17H
18PK
B96A
18VT
B9VB
18GY
Figure 62 Electronic Engine Controls, V8–AVNT Engine Cruise Control and Body Builder Connections
62

7.5. CATERPILLAR C10, C11, C12, AND C13 ENGINES, P. 5
NAME
DATE
REFERENCE
RELEASE NO.
CHANGE
SHEET
DRAWN
PART NO.
DATE
REV
CHK
CHAPTER 6
CAT C10, C11, C12 & C13 ENGINES
U00DLCK
16DEC01 AE08-52370 05
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
E 59924R
ADDED EATON DM3 TRANS NOTE
52778H
JKP 4JAN06
A97P
18VT
D
20YL
A97Y
18VT
(9260)
LOW COOLANT
A
D
ENGINE/TRANSMISSION
(7800)
6 11 7
DASH
B
20
K97AT
14VT
FREON
(6200)
SYS CONTROL
BLUE
(4008)
K3A(+)
18DKBL
2 15
PASS THRU
B4 C4
J5E(-)
W/WABCO
5
A5AP(-)
20LTGN
(1800)
34
C
K97AM
10VT
C
(1650)
(1500)
PUBLIC
J1708 & 5V
K97-GD
14WH
(4820)
19
F1-F1
MINI FUSE (4001)
CH02_14
B
(1805)
SENSOR
65
B99V
18VT
B97P
18VT
K97U
18VT
A5AL(+)
18YL
A5B(-)
18LTGN
(1600)
J5C(+)
W/BENDIX
J5C(-)
W/BENDIX
J99V
18VT
J97P
18VT
K10-GU
14WH
K77B
16LTGN
K5T
18LTGN
K99V
18VT
K34D
16TN
K5V
20YL
K5W
20LTGN
K47
16GY
K97YA
18VT
K
34B
16TN
K97AS
14VT
N14-G
10WH
K97-GE
14WH
N97-G
10WH
53
34
J5E(+)
W/WABCO
32
8
A5AC(+)
20YL
4 49 54 66
ECM
(6013)
A5B(+)
18YL
B
B
A
A
CLEAN PWR
(6323)
FEED
J1939
ECM NEG
5
(1652)
BATTERIES
(6407)
B
E
4 10 8
(4103)
A
ENGINE GND
(6340)
COMP
G
5 16 1
(1701)
C5
4
DCM
35
D
A
DIAGNOSTIC
SYS CONTROLLER
CLUSTER
FEED
70
5A
F1-E1
IGN FEED
C
A
ACCEL. PEDAL
REF SPLICE
B97Y
18VT
J97U
8VT
A5AG(+)
18YL
A5AE(+)
18YL
A5AM(-)
18LTGN
A5AF(-)
18LTGN
A99V
18VT
J3B(-)
18GY
J3B(+)
18DKBL
20YL
20GN
J97Y
18VT
J77B
16GN
K77-G
16WH
K3B(-)
18GY
K5S
18YL
K97P
18VT
K5U
18YL
K5AE
18LTGN
K47A
16GY
K34-GA
16WH
K34C
16TN
K97-GA
10WH
N14AY
10RD
N14BA
10RD
N97AA
10RD
50
33
5
2 52 67
A C
A A
30A
B
& GND
ECM POS
(9261)
A5AD(-)
20LTGN
9
20G
N
K97Y
18VT
A5AS(-)
20LTGN
A5AR(+)
20YL
A5AN(+)
20YL
A5AH(-)
18LTGN
CH10_20 FOR EATON DM3 TRANS
Figure 63 Caterpillar C10, C11, C12, and C13 Engines
63

7.6. CUMMINS ISM ENGINE, P. 6
Figure 64 Cummins ISM Engine
64

7.7. I6 HEUI ENGINE, P. 7
DATE
CHK
NAME
NAVISTAR, INC
DRAWN
REV REFERENCE
CHANGE
NAVISTAR, INC.
RELEASE NO. SHEET
PART NO.
DATE
CHAPTER 6
(16-HEUI) ENGINES
CIRCUIT DIAGRAM, 42/43/44/85/8600 & 73/74/7500
U00JLH3
12SEP03
52778H
AE08052370 007
A AND B.
DLV1 10APR11 CONN 6703 CAVITY WAS C 77596V
K97S
16VT
B97AF
18VT
B
A
1
47
ENGINE/
DASH
(4103)
24
K34A
18TN
16
5
21
J24B
18GY
J24C
18GY
B
87A
R11-2
B
CAB FUSE
BLOCK
(1012)
M1-A4
N14AY
10RD
J13CW
10PK
DCM
CONN
(1800)
N97-G
10WH
J97W
10VT
A97Y
18VT
ENGINE/
DASH
(4103)
8
A
18
2
J97W
10VT
K97L
14PL
J13S
14PK
A2
K97V
14PL
K10-GB
14WH
23
K10-G
18WH
5A
5A
MINI FUSE BLOCK
(4001)
M1-A3
F1-E2
R11-5
K97AA
10VT
F
B99V
18VT
K97C
18VT
10
FROM PRIMARY
IGNITION FEED
RELAY
B97AH
18
VT
1
F1-E1
6
ECM2 CLEAN
POWER & GND
(6323)
K97E
16VT
ENGINE/
DASH
(4103)
ECU POWER/
STARTER
(4105)
ECM
NEGATIVE
(9260)
2
J99V
18VT
18
B99E
18VT
K24A
18GY
M1-C3
22
EXHAUST BRAKE
SOLENOID
(6500)
86
C4
F1-B2
85
K97Z
14PL
K97UA
18VT
C
A13AH
10PK
C5
2
K97K
18VT
BAP
SENSOR
(1808)
K97R
18VT
B97AD
18VT
12
J97QA
18VT
87
A97P
18VT
EXHAUST
BRAKE
SOLENOID
(6502)
K97P
14PL
BATTERIES
B
K97V
14PL
7
M1-B3
K10-GA
18WH
B
F24
87
J13W
14PK
R11-3
K97D
18VT
A
18GN
APS/IVS
(1804)
J97Y
18VT
ENGINE
BLOCK
GND
A
N14BA
10RD
K99S
18VT
3
FROM PRIMARY
IGNITION
RELAY (R9-4)
(4003) CH02_14
11
J97P
18VT
J24B
18GY
ECU POWER/
STARTER
(4105)
42
J99U
18VT
GND
(6704)
30
4
B2
M1-C4
C6
5A
POWER RELAY
(4003)
15
D
J97UA
18VT
B99U
18VT
2
3
K97AA
12
VT
LOW
COOLANT
SENSOR
(6400)
B97P
18VT
INTAKE AIR
TEMP SENSORS
(6703)
(LOCATED ON
AIR BRAKE)
B5
A
A
K97Y
14VT
5
1
ENGINE/DASH
(4103)
A99V
18VT
85
ENGINE ECM
FEED FUSE
(9254)
EXHAUST BRAKE
RELAY
(4002)
30
J97AAA
14VT
FROM
SECONDRY
IGNITION
RELAY
(4003)
R11-4
A
C10
A99U
18VT
POWER
RELAY
(4003)
N14-G
10WH
F1-A2
R11-1
ECM POSITIVE
FEED (9261)
41
E
B97AE
18
VT
27
K24-G
18WH
4
3
B97Q
18VT
N97AA
10RD
A
N97-GA
10WH
K97T
18VT
K97F
14PL
1
PASS THRU
AT DASH
(4014)
A97Q
18VT
B97Y
18VT
86
A99E
18
VT
F1-F1
B
29
J24A
18GY
19
2
B4
J97-GA
10VT
K97N
14PL
K99T
18VT
1
K34-G
18WH
87A
40A
MINIFUSE
BLOCK
(4001)
MULTIFEED TERMINAL/
BUSS BAR
ECM
(6007)
+
-
SEE CH10_20 FOR EATON DM3 TRANS
Figure 65 I6 HEUI Engine
65

7.8. I6 HEUI ENGINE CRUISE CONTROL AND BODY BUILDER CONNECTIONS WITH
MANUAL TRANSMISSION, P. 8
Figure 66 I6 HEUI Engine Cruise Control and Body Builder Connections with Manual Transmission
66

GAUGES WITH AND WITHOUT INTEGRAL WARNING LIGHT (CHAPTER 7)
8.1. IP/GAUGE LIST, P. 1
ENGINE CTRLR/DRIVE TRAIN J1939/CLUSTER
YES
AIR 1 (PRES)
VOLT
WARN
TRANSMISSION
MPH/KPH (SPD)
SYSTEM CTRLR/DRIVE TRAIN J1939/CLUSTER
YES
AIR 2 (PRES)
SIGNAL PATH
AIR APPLICATION
FUEL TANK
FUEL
YES
YES
WATER (TEMP)
SENSOR
FWD CHASSIS
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 7
IP/GAUGES
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
09AUG00 01
AE08-52371
-----------------------
YES
ENG OIL (TEMP)
NOTES:
REAR AXLE TEMP
INSIDE CAB - DASH PNL
NO
ENGINE
YES
OIL (PRES)
1) WARNING LIGHTS ARE PART OF THE GAUGES AND LOCATED IN THE GAUGE
AXLE
NO
STEERING COL AREA
ENGINE
YES
TRANS (TEMP)
LIGHT LOCATION
ENGINE
ENGINE
TRANSMISSION
INSTRUMENT PANEL GAUGES
YES
NO
GAUGE
YES
XMSN CTRLR/SYSTEM CTRLR/DRIVE TRAIN J1939/CLUSTER
RPM (TACH)
PEC 16JAN01
Figure 67 IP/Gauge List
67

8.2. WARNING LIGHT LIST, P. 2
Figure 68 Warning Light List
68

8.3. WARNING LIGHTS CONTROLLED BY ENGINE, TRANSMISSION, ABS
CONTROLLER, P. 3
WAIT TO START
ENGINE (RED LED)
RETARD OVERHEAT
ENGINE (YELLOW LED)
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 7
WARNING LIGHTS CONTROLLED BY
ENGINE, TRANSMISSION, ABS CONTROLLER
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
20JUN00 03
AE08-52371
AUTO NEUTRAL
TRAC CTRL
CHECK TRANS
OPTIMIZED IDLE
TRAILER ABS
CHECK ELECTR SYS
THE FOLLOWING WARNING LIGHTS ARE CONTROLLED BY THE ENGINE, TRANSMISSION,
OR ABS CONTROLLER OVER THE DATA BUS AND DO NOT HAVE INDEPENDENT CIRCUITRY
THAT CAN BE OR NEEDS TO BE SHOWN:
ABS
RANGE INHIBIT
(NOT ON DATA BUS TO CLUSTER)
(NOT ON DATA BUS TO CLUSTER)
PEC 16JAN01
Figure 69 Warning Lights Controlled by Engine, Transmission, ABS Controller
69

8.4. ENGINE OIL PRESSURE AND TEMP, SPEEDOMETER, TACH, VOLTMETER AND
WATER TEMP GAUGE CIRCUITS, P. 4
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 7
ENG OIL PRESS & TEMP, SPEEDOMETER, TACH,
VOLTMETER & WATER TEMP GAUGE CIRCUITS
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
20JUN00 04
AE08-52371
TACHOMETER GAUGE
ENGINE OIL PRESSURE GAUGE
ENGINE OIL TEMPERATURE GAUGE
REFER TO CONSOLIDATED ENGINE/VEHICLE CONTROLLER
DIAGNOSTICS MANUAL EGES-175 (DT466), EGES-190 (V8-AVNT), FOR CIRCUIT
DIAGRAMS SHOWING INPUT CIRCUITRY FOR THE FOLLOWING DATALINK DRIVEN SYSTEM:
WATER TEMPERATURE GAUGE
SPEEDOMETER GAUGE
PEC 16JAN01
Figure 70 Engine Oil Pressure and Temp, Speedometer, Tach, Voltmeter and Water Temp Gauge
Circuits
70

8.5. IP/GAUGES AND WARNING LIGHTS — GAUGE CLUSTER, P. 5
A5AM(-)
20LTGN
A5AL(+)
20YL
A28
18TN
GROUND
STUD
A62
18DKBL
14
SYSTEM
CONTROLLER
(1600)
DRIVETRAIN
J1939
DATA
LINK
A28-G
18WH
CAB
FUSE
BLOCK
(1011)
HEADLIGHT ENABLE
BATTERY +
1
4
NC
DRIVETRAIN J1939+
2
11
5
NC
DRIVETRAIN J1939-
3
12
7
NC
J1939 SHIELD 6
SYSTEM GND
PANEL LT DIM O/P
8
GND
9
SW IGN
10
GAUGE CLUSTER
(1500)
A13B
16PK
A50
20YL
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 7
IP / GAUGES & WARNING LIGHTS -
GAUGE CLUSTER
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
10AUG00 05
AE08-52371
CNA 20SEP02 DVD/A13B WAS 13B, CHGD
FONT SIZES.
56507Z
C
CAB
FUSE
BLOCK
(1012)
PANEL LIGHT
DIMMER
SEE CH08_10
SEE CH02_12
SEE CH02_06
SEE CH02_06
5A
F1 E1
F19
15A
H2 G2
F2
Figure 71 IP/Gauges and Warning Lights — Gauge Cluster
71

8.6. AIR PRESSURE INPUT CIRCUIT, P. 6
J9EA
18GY
J40F
18GY
A40F
18GY
B9VF
18GY
B6HC
18GY
B40F
18GY
A40
20GY
B40G
18GY
J40FA
18GY
A99W
18VT
M40
18GY
M6A
18GY
B9VE
18GY
B9VC
18GY
B9V
18GY
A9V
18GY
A9H
20GY
A6H
20GY
B6HA
18GY
B6H
18GY
B6HB
18GY
B40
18GY
A40
20GY
M9A
18GY
A40A
20GY
B40A
18GY
27
B3
3
B2
SYSTEM CONTROLLER
15
(1600)
16
PRIMARY AIR SENSE
26
SYSTEM CONTROLLER
(4004)
3
AUX AIR SENSE
W / HYD BRAKES
15
SYSTEM CONTROLLER
(1600)
2
3
PASS THRU
(4014)
SECONDARY AIR SENSE
1
FWD CHASSIS/DASH
(4301)
SWITCHED SENSE CMD
C12
LOGIC GND
27
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 7
AIR PRESSURE INPUT CIRCUIT
U00TRH2
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
21JUN00 06
AE08-52371
C12
A4
CAB/DCM
(1800)
B6
DCM
(1800) & (1805)
ZERO VOLT REFERENCE
5V OUT
PRIMARY AIR
TRANSDUCER
(1811)
A
B
C
SECONDARY AIR
TRANSDUCER
(1812)
A
B
C
AUX AIR
TRANSDUCER
(8505)
A
B
C
PRIMARY, SECONDARY AIR BRAKE APPLICATION GAUGE WIRING
AIR SYSTEM PRESSURE GAUGE WIRING
J6A
18GY
J6BA
18GY
(5V)
13
SYSTEM CONTROLLER
(4004)
AIR APPLICATION
TRANSDUCER
(1822)
A
B
C
C2
17
PASS THRU
(4014)
ELECTRONIC REF
GROUND
SPLICE PACK
(4830)
J9A
18GY
(4820)
5V REF
SPLICE PACK
AIR BRAKE APP
PEC 16JAN01
REVERSED 4014 TERMINAL. B P54634F
PEC 18JUN01
Figure 72 Air Pressure Input Circuit
72

8.7. AXLE TEMPERATURE, FWD REAR AND REAR AXLES, GAUGE INPUT CIRCUIT, P.
7
J9G
18GY
ZERO VOLT REF
SPLICE
(4830)
1
F REAR AXLE
TEMP SENDER
(9811)
1
2
5
CENTER/REAR
CHASSIS
(9800)
J9A
18GY
FR AXLE OIL TEMP
R32A
18TN
2
SYSTEM
CONTROLLER
(4004)
A1
DASH/CENTER
CHASSIS
(9700)
RR AXLE
TEMP SENDER
(9812)
1
2
R9C*
18GY
* GAUGE REAR
** GAUGE REAR & RR
2
N32A
18TN
ZERO VOLT REF
RR AXLE OIL TEMP
R32
18TN 1
N32
18TN
D8
6
1
R9A**
18GY
R9B**
18GY
A2
R9**
18GY
26
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 7
AXLE TEMPERATURE, FWD REAR &
REAR REAR AXLES, GAUGE INPUT CIRCUIT
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
10AUG00 07
AE08-52371
11
2
J32A
18TN
J32
18TN
ZERO VOLT REF
SPLICE
(8802)
N9
18GY
N9
18GY
N9H**
18GY
N9F*
18GY
PEC 16JAN01
Figure 73 Axle Temperature, FWD Rear and Rear Axles, Gauge Input Circuit
73

8.8. FUEL GAUGE INPUT CIRCUIT (SINGLE TANK) DIFFERENTIAL LOCK WARNING
LAMPS, P. 8
DATE
CHK
NAME
NAVISTAR, INC
DRAWN
REV REFERENCE
CHANGE
NAVISTAR, INC.
RELEASE NO. SHEET
PART NO.
DATE
CHAPTER 7
FUEL GAUGE INPUT CIRCUIT (SINGLE TANK)
DIFFERENTIAL LOCK WARNING LAMPS
-
CIRCUIT DIAGRAM, 42/43/44/85/8600 & 73/74/7500
U00JXP9
10AUG00
52778H
AE08052371 008
BPH4 30JUL12 ADDED ULTRASHIFTVP EFFH 90797D
* W/ ULTRASHIFTVP
* *
ZERO VOLT REF SPLICE
/ *ELECTRONIC
GROUND SPLICE
(4830)
CAB FUSE
BLOCK
(1013)
SENSOR RESISTANCE
FULL - 29 TO 37 OHMS
EMPTY - 234 TO 246 OHMS
CHASSIS GND
SPLICE PACK
(8803)
A49F
18GY
D1
9
N36
18TN
N49B
18GY
CENTER/REAR
CHASSIS
(9800)
A49C
18GY
D8
R10-GB
18WH
B
N9A
18GY
13K
16PK
J9A
18GY
FUEL SENDER
B
OPTIONAL WARNING
LIGHT ADAPTOR
(1040)
20
C12
DASH/CENTER
CHASSIS
(9700)
A49E
18GY
C
E1
F29
IGNITION FEED
CAB FUSE BLOCK
(1013)
CH02_13
A13FB
10PK
WARNING
LIGHTS
(1555)
B
N36A
18TN
E
J9G
18GY
B11
A1
J49B
81GY
19
R49-G
18WH
SYSTEM
CONTROLLER
(4004)
A
LEFT FUEL
SENSOR
(9100)
J36A
18TN
A
N49-G
18WH
R49-GA
18WH
RR AXLE
DIFF LOCK
(9815)
8
A49D
18GY
DASH / CENTER
CHASSIS
(9714 / 9700)
C6
5A
PASS THRU
(1701)
R49A
18GY
A
26
F1
J49A
18GY
D
7
J11-GJ
10WH
5
N10-G
14WH
J11-GA
14WH
B
B
G
B
N49A
18GY
FUEL GAUGE INPUT CIRCUIT (SINGLE TANK)
GND
(4006)
RIGHT GAUGE
FUEL SENDER
(9101)
F REAR AXLE
DIFF LOCK
(9814)
N9B
18GY
ZERO VOLT
REF SPLICE
(8802)
*N9
18GY
R49
18GY
DIFFERNTIAL LOCK WARNING LAMPS
C
A
A
B
ZERO VOLT REF
A
N9
18GY
* W/ MXT
FUEL TANK
LOCATION
DEPENDENT
N49A
18GY
J49A
18GY
J49A
18GY
N49A
18GY
D1
D1
Figure 74 Fuel Gauge Input Circuit (Single Tank) Differential Lock Warning Lamps
74

8.9. GAUGES AND WARNING LIGHTS — FUEL FILTER RESTRICTION AND WATER IN
FUEL LIGHTS, P. 9
Figure 75 Gauges and Warning Lights — Fuel Filter Restriction and Water in Fuel Lights
75

8.10. GAUGES AND WARNING LIGHTS — PARK BRAKE LIGHT AND TRANSMISSION
OIL TEMP. GAUGE, P. 10
Figure 76 Gauges and Warning Lights — Park Brake Light and Transmission Oil Temp. Gauge
76

8.11. GAUGES AND WARNING LIGHTS — AMMETER, P. 11
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 7
GAUGES & WARNING LIGHTS-AMMETER
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
10AUG00 11
AE08-52371
7
8
9
1
6
12
10
11
PAM MODULE
J5R(+)
20YL SEE CH02_07
20SHLD SEE CH02_07
J5R(-)
20GN SEE CH02_07
J26D
18TN
J11-GPP
18WH
J26B
18TN
J26A
18TN
GND
(4005)
5A
F2-D3
F2-C3
F2-E3
J14M
10RD
J14F
8RD
MAXIFUSE
BLOCK (4000)
23
22
A
A A
K26B
18TN
K26A
18TN
AMMETER
(6332)
N26B
14TN
K26A
10TN
AMMETER
(6333)
N26B
10TN
STARTER
GROUND
STUD
BATTERY
NEGATIVE
POST
DRIVETRAIN
J1939 DATALINK
ENGINE/
DASH
(4103)
SEE CH02_03
MINI-FUSE
BLOCK
(4001)
AMMETER
(9262)
(4087)
PEC 16JAN01
Figure 77 Gauges and Warning Lights — Ammeter
77

8.12. ENGINE OIL TEMPERATURE GAUGE WITH CATERPILLAR, P. 12
Figure 78 Engine Oil Temperature Gauge With Caterpillar
78

8.13. FRONT AXLE ENGAGEMENT LAMP, P. 13
Figure 79 Front Axle Engagement Lamp
79

LIGHTS (CHAPTER 8)
9.1. BACK UP LIGHTS, P. 1
J13S
14PK
J71
18OR
L71B
16OR
L71C
16OR
J71AA
18OR
J71A
18OR
N10-G
14WH
S10-GC
14WH
S71C
14LTBL
A
STOP TAIL
& TURN
(9303)
DRAWN
RELEASE NO.
NAME
DATE
REFERENCE
CHK
PART NO. SHEET
REV
DATE CHANGE
CHAPTER 8
BACKUP LIGHTS W/MANUAL XMSN
U00JXP9
P52778H
42/43/44/85/8600 & 73/74/7500 CIRC DIAGRAMS
10AUG00 01
AE08-52372
E
A
LEFT TAIL
LIGHT
(71)
E E
A
RIGHT TAIL
LIGHT
(72)
C6
A4
DASH/
CHASSIS
(9700)
A
B
CHASSIS GND
SPLICE PACK
(8803)
A
B
TRANS/
DASH
(4705)
1
CENTER/REAR
CHASSIS
(9800) 12
R10-G
12WH
N10-GA
12WH
R71
14OR
N71
14OR
CAB
GND
(4006)
J11-GA
14WH
J11-GJ
10WH
BACKUP
T/S SPLICE
(4810)
BACKUP
LIGHT SWITCH
(7500)
A B
10A
F1-A1
F1-B1
FROM PRIMARY
IGNITION RELAY
SEE CH02_14
F1-E1
F1-F1
MINI - FUSE BLOCK
(4001)
PEC 16JAN01
Figure 80 Back Up Lights
80

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