Power and Grounding Components Power Distribution
Name | Location | Locator View | Connector End View |
|---|---|---|---|
Air Brake Dryer | On the outboard side of the left frame rail | Air Brake System Component Views in Air Brakes | Air Brake System Connector End Views in Air Brakes |
Air Intake Heater (LG5) | Between the air intake housing and the intake manifold | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Ammeter | On the left side of the IP, to the right of the steering column, in the right accessory trim plate, the bottom gauge | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Automatic Transmission (AT) Oil Temperature Gauge | On the left side of the IP, to the right of the steering column and right of the automatic transmission (AT) selector control | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Automatic Transmission (AT) Selector Control | On the left side of the IP, to the right of the steering column, on the center accessory trim plate | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Backup Lamps Switch (Automatic Transmission) | On the lower right side of the transmission | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Backup Lamps Switch (Manual Transmission) | On the top of the transmission, left of the gear shift lever | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Battery | On the top of the crossmember or relocated by the upfitter | ||
Battery, Center (TNR/TPL) | On the top of the crossmember, between the left battery and the right battery, or relocated by the upfitter | ||
Battery, Left (TNL/TNN) | On the top of the crossmember, the left battery, or relocated by the upfitter | ||
Battery, Left (TNR/TPL) | On the top of the crossmember, the left battery, or relocated by the upfitter | ||
Battery, Right (TNL/TNN) | On the top of the crossmember, the right battery, or relocated by the upfitter | ||
Battery, Right (TNR/TPL) | On the top of the crossmember, the right battery, or relocated by the upfitter | ||
Canister Purge Solenoid | On the left side of the intake plenum | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Clutch Pedal Position (CPP) Switch (LG5) | On the clutch pedal bracket | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Clutch Pedal Position (CPP) Switch Jumper Harness (C227, 2 cavities) (Automatic Transmission) (LG5) | In the IP harness, to the clutch pedal position (CPP) switch connector, near the brake pedal | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Clutch Pedal Position (CPP) Switch Jumper Harness (C227, 2 cavities) (Automatic Transmission) (LP4/L21) | In the IP harness, to the clutch pedal position (CPP) switch connector, near the brake pedal | Engine Controls Component Views in Engine Controls | |
Clutch/ Starter Interlock Switch (LG5) | On the clutch pedal bracket | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Clutch/ Starter Interlock Switch (LP4/L21) | On the clutch pedal bracket | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Clutch/ Starter Interlock Switch Jumper Harness (C215, 2 cavities) (Automatic Transmission) (LG5) | On the clutch switch jumper, to the IP harness, at the clutch pedal support bracket | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Clutch/ Starter Interlock Switch Jumper Harness (C215, 2 cavities) (Automatic Transmission) (LP4/L21) | On the clutch switch jumper, to the IP harness, at the clutch pedal support bracket | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Cruise Control Switch | On the left side of the steering column | Engine Controls Component Views in Engine Controls-7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls-7.2L (Caterpillar®) |
Cruise Control Switch | On the left side of the steering column | Cruise Control Component Views in Cruise Control | Cruise Control Connector End Views in Cruise Control |
Daytime Running Lights (DRL) Control Module | On the left kick panel, in the DRL harness | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Driver Information Center (DIC) (LG5) | On the left side of the IP, part of the instrument panel cluster (IPC) | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C1 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C2 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Driver Information Center (DIC) (LP4/L21) | On the left side of the IP, part of the instrument panel cluster (IPC) | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C1 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C2 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C1 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C2 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Electronic Brake Control Module (EBCM) (JE5) | On a bracket, on the left side, upper exterior bulkhead, on the top of the air brake application valve | Air Antilock Brake System Component Views in Air Antilock Brake Systems | Air Antilock Brake System Connector End Views in Air Antilock Brake Systems |
C1 (30 cavities) | In the electronic brake control harness, to the EBCM | Air Antilock Brake System Component Views in Air Antilock Brake Systems | Air Antilock Brake System Connector End Views in Air Antilock Brake Systems |
C2 (18 cavities) | In the electronic brake control harness, to the EBCM | Air Antilock Brake System Component Views in Air Antilock Brake Systems | Air Antilock Brake System Connector End Views in Air Antilock Brake Systems |
Electronic Brake Control Module (EBCM) (JE3) | On the inboard side of the left frame rail, to the rear of number one crossmember, on the bracket | Antilock Brake System Component Views in Antilock Brake Systems | Antilock Brake System Connector End Views in Antilock Brake Systems |
C1 (2 cavities) | In the electronic brake control harness, to the EBCM | Antilock Brake System Component Views in Antilock Brake Systems | Antilock Brake System Connector End Views in Antilock Brake Systems |
C2 (24 cavities) | In the electronic brake control harness, to the EBCM | Antilock Brake System Component Views in Antilock Brake Systems | Antilock Brake System Connector End Views in Antilock Brake Systems |
Electronic Throttle Actuator Control Module | In the center of the IP mounted on the shelf | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Electronic Throttle Actuator Control Module - C1 | In the center of the IP mounted on the shelf | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Electronic Throttle Actuator Control Module - C2 | In the center of the IP mounted on the shelf | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Flasher/ Relay Center | In the right side of the IP | Engine Exhaust Brake Connector End Views in Engine Exhaust | |
Fuel Heater (LG5) | On the left side of the engine, part of the fuel/ water separator (fuel filter) | Engine Controls Component Views in Engine Controls-7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls-7.2L (Caterpillar®) |
Fuel Injectors (LP4/L21) | Under the intake plenum, in the intake manifold | Engine Controls Component Views in Engine Controls-7.4L | Engine Exhaust Brake Connector End Views in Engine Exhaust |
Fuse/Relay Center | On the right side of the IP | -- | -- |
Fusible Link N (rust) (LG5) | In the engine harness, to the generator B(+) stud | -- | -- |
Fusible Link S (blue) (LP4/L21) | In the engine harness, in the main and starter harness breakout, at the breakout to the starter solenoid | -- | -- |
Generator (LG5) | On the right side of the engine | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
C1 (ring terminal) | In the engine harness, to the generator Bat terminal | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
C2 (ring terminal) | In the engine harness, to the generator R terminal | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
C3 (2 cavities) | In the engine harness, to the generator | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Generator (LP4/L21) | On the upper right side of the engine | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
C1 (ring terminal) | In the engine harness, to the generator Bat terminal | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
C2 (4 cavities) | In the engine harness, to the generator | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
C1 (ring terminal) | In the engine harness, to the generator BAT terminal | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
C2 (4 cavities) | In the engine harness, to the generator | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Headlamps Switch | On the left side of the IP, to the left of the instrument panel cluster (IPC) | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Heated Moisture Ejector Valve | On bottom rear of the primary air reservoir | Air Brake System Component Views in Air Brakes | Air Brake System Connector End Views in Air Brakes |
HI IDLE Switch (LG5) | On the left side of the IP, to the right of the steering column, on the left IP accessory trim plate | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
HI IDLE Switch (LP4/L21) | On the center of the IP | Engine Controls Component Views in Engine Controls 7.4L | Engine Controls Connector End Views in Engine Controls 7.4L |
IP Fuse Block | In the center of the IP, to the left of the instrument panel cluster (IPC) | ||
Ignition Coils | On the left and right side valve covers | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Ignition Switch | On the top side of the lower steering column | ||
C1 (5 cavities) | In the IP harness, to the ignition switch | ||
C2 (4 cavities) | In the IP harness, to the ignition switch | ||
Instrument Panel Cluster (IPC) | In the left side of the IP | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Mass Air Flow (MAF) Sensor | In the air duct, between the air filter housing and the throttle body, on the right side of the engine | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
MaxiFuse® Block/ Mini-Relay Center | On the right side of the IP, under the access cover | ||
MaxiFuse® Block 1 | On the right side of the IP, under the access cover, on the left side of the MaxiFuse® block/ mini-relay center | ||
MaxiFuse® Block 2 | On the right side of the IP, under the access cover, on the center of the MaxiFuse® block/ mini-relay center | ||
Mini-Relay Center | On the right side of the IP, under the access cover, on the right side of the MaxiFuse® block/ mini-relay center | ||
Multifunction Alarm Module (MFAM) (LG5) | In the center of the IP harness, behind the right access panel | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
C1 (16 cavities) | In the IP harness, to the MFAM | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
C2 (4 cavities) (with KPJ) | In the IP harness to the MFAM | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
Multifunction Alarm Module (MFAM) (LP4/L21) | In the center of the IP, behind the right access panel | Engine Controls Component Views in Engine Controls 7.4L | Engine Controls Connector End Views in Engine Controls 7.4L |
Multifunction Alarm Module (MFAM) Jumper (Shunt) (LG5, KPJ) | In the IP harness, taped to the main harness, between the IP fuse block and MFAM breakouts. | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
Neutral Switch (Automatic Transmission) | On the lower right side of the transmission | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Oxygen Sensor (O2S) LH Pre-Convertor | On the left exhaust pipe, below the exhaust manifold | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Oxygen Sensor (O2S) RH Pre-Convertor | On the right exhaust pipe, below the exhaust manifold | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Power Brake (P/B) Booster Pump Motor Relay | In the flasher/ relay center, above position 3-A | Hydraulic Brake Component Views in Hydraulic Brakes | Hydraulic Brake Connector End Views in Hydraulic Brakes |
Powertrain Control Module (PCM) (LG5) | On the left rear side of the engine block | Engine Controls Component Views in Engine Controls-7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls-7.2L (Caterpillar®) |
Powertrain Control Module (PCM) (LP4/L21) | Under the left front cowel in front of driver | Engine Controls Component Views in Engine Controls-7.4L | -- |
Powertrain Control Module (PCM) - C1 (LP4/L21) (32 cavities) | Under the left front cowel in front of driver | Engine Controls Component Views in Engine Controls-7.4L | Engine Controls Connector End Views in Engine Controls-7.4L |
Powertrain Control Module (PCM) - C2 (LP4/L21) (24 cavities) | Under the left front cowel in front of driver | Engine Controls Component Views in Engine Controls-7.4L | Engine Controls Connector End Views in Engine Controls-7.4L |
Radiator Shutter Control Valve (LG5) | On the left side of the radiator core support | Cooling System Component Views in Engine Cooling | Cooling System Connector End Views in Engine Cooling |
Radiator Shutter/ Engine Coolant Temperature (ECT) Switch (LG5) | On the right side of the engine, on the upper left side of the coolant outlet extension housing | Cooling System Component Views in Engine Cooling | Cooling System Connector End Views in Engine Cooling |
Speedo Adapter | In the right side of the IP under the MaxiFuse® block/ mini-relay center | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Engine Electrical Connector End Views in Engine Electrical |
Starter Solenoid (LG5) | On the lower right side of the engine | Engine Electrical Component Views in Engine Electrical | -- |
C1 (ring terminal) | On the positive battery cable to the starter solenoid BAT stud, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C2 (ring terminal) | In the engine harness, to the starter solenoid BAT stud, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C4 (ring terminal) | In the engine harness, to the starter solenoid SOL stud, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
Starter Solenoid (KQR, LG5) | On the lower right side of the engine | Engine Electrical Component Views in Engine Electrical | -- |
C2 (ring terminal) | In the engine harness, to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C4 (ring terminal) | In the engine harness, to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
Starter Solenoid (LP4/L21) | On the lower right side of the engine | Engine Electrical Component Views in Engine Electrical | -- |
C1 (ring terminal) | On the positive battery cable to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C2 (ring terminal) | In the engine harness, to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C4 (ring terminal) | In the engine harness, to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C1 (ring terminal) | On the positive battery cable to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C2 (ring terminal) | In the engine harness, to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C4 (ring terminal) | In the engine harness, to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
Starter Thermal Switch (KQR,LG5) | On the lower right side of the engine, on the end of the starter motor | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Stoplamp Switch (LE5) | On the brake pedal support | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
C1 (4 cavities) | In the IP harness, to the stoplamp switch | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
C2 (2 cavities) | In the IP harness, to the stoplamps switch | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Stoplamp Switch (JE3) | On the brake pedal support | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
C1 (4 cavities) | In the IP harness, to the stoplamps switch | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
C2 (2 cavities) | In the IP harness, to the stoplamps switch | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Stoplamp Switch Interface Module (LG5) | In the IP, left of the IP fuse block | Engine Controls Component Views s in Engine Controls-7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls-7.2L (Caterpillar®) |
Two-Speed Rear Axle Shift Relay (HPZ) | On the front right side of the crossmember, forward of the rear axle | Rear Axle Component Views in Rear Axle Controls | Rear Axle Connector End Views in Rear Axle Controls |
Two-Speed Rear Axle Shift Switch (HPZ) | At the manual transmission shift lever | Rear Axle Component Views in Rear Axle Controls | Rear Axle Connector End Views in Rear Axle Controls |
Upfitter IP (+) Junction Block | Under the left side of the IP, on the left kick panel | -- | |
C106A (1 cavity) (LG5) | In the engine harness, to the engine harness, near the starter solenoid breakout | -- | |
C106A (1 cavity) (KQR, LG5) | In the starter motor overcrank protection jumper harness, to the engine harness, near the starter solenoid breakout | -- | |
C106B (1 cavity) (LG5) | In the engine harness, to the engine harness, near the starter solenoid breakout | -- | |
C106B (1 cavity) (KQR, LG5) | In the starter motor overcrank protection jumper harness, to the engine harness, near the starter solenoid breakout | -- | |
C109 (8 cavities) (LP4/L21) | Engine harness to the odd bank (left side) ignition coil harness | -- | |
C110 (10 cavities) (LP4/L21) | Engine harness to the even bank (right side) ignition coil harness | -- | |
C112 (2 cavities) (LG5) | In the engine harness, to the engine exhaust brake harness, near the frame rail, by the starter | -- | |
C116 (5 cavities) (LG5) | In the engine harness, to the fuel tank harness, at the right frame rail, near the starter | -- | |
C116 (5 cavities) (LP4/L21) | In the engine harness at the right frame rail, near the starter | -- | |
C117 (3 cavities) | In the engine harness, to the two-speed rear axle jumper harness, near the frame rail, by the starter | -- | |
C119 (7 cavities) (LG5) | In the ABS-hydraulic jumper harness, to the ABS-hydraulic chassis harness, in the engine compartment, on the left side of the bulkhead | -- | |
C119 (7 cavities) (LP4/L21) | In the engine harness, to the ABS-hydraulic chassis harness, in the engine compartment, on the left side of the bulkhead | -- | |
C127 (LG5) | On the engine harness, to the Cat® diesel engine harness, near the air intake heater relay | -- | |
C127 | On the engine harness, to the fuel injector harness, at the rear of the engine | -- | |
C200 (56 cavities) (LG5) | In the IP harness, to the engine harness, under the right side of the IP | -- | |
C200 (56 cavities) (LP4/L21) | In the IP harness, to the engine harness, under the right side of the IP | -- | |
C210 | In the right center of the dash, behind IP fuse block | -- | |
C212 (23 cavities) (Upfitter Connector) | Under the left side of the IP, by the left kick panel | -- | |
C215 (2 cavities) (Automatic Transmission) | In the IP harness, to the clutch/ starter interlock switch jumper, near the brake pedal | -- | |
C234 (7 cavities) (JE3) | In the IP harness, inline to the ABS-hydraulic brake harness, near the left side of the interior bulkhead | -- | |
C235 (1 cavity) | In the engine harness, between C200 and P100 | -- | |
C401 (2 cavities) (LG5) | On the positive battery cable harness, to the engine harness, near the battery | -- | |
C401 (2 cavities) (LP4/L21) | On the positive battery cable, to the engine harness, behind the left rear side of the engine | -- | |
C409 (8 cavities) (LG5) | In the engine harness, to the transmission harness, on the left side of the engine, at the bellhousing | -- | |
C409 (8 cavities) (LP4/L21) | In the engine harness, to the transmission harness, on the left side of the engine, at the bellhousing | -- | |
C412 | In chassis harness, from C116 to air brake dryer | -- | |
C415 | In the engine harness, to the transmission harness, on the left side of the engine, at the bellhousing | -- | |
G101 (LG5) | From the starter motor end ground stud (G101) to the right frame rail ground (G100) | -- | -- |
G106 (LP4/L21) | From the engine harness to the left rear side of the left cylinder head | -- | -- |
P100 | On the right side of the bulkhead | -- | -- |
P102 | On the right side of the bulkhead | -- | -- |
P103 | On the left side of the bulkhead | -- | -- |
S122 (LG5) | In the engine harness, approximately 18 cm (7 in) from the G401 G402 breakout | -- | -- |
S123 | In the engine harness, approximately 10 cm (4 in) from the vacuum tube breakout | -- | -- |
S123 (LG5) | In the engine harness, approximately 34 cm (13 in) from the ground breakout | -- | -- |
S142 (LP4/L21) | In the engine harness, approximately 4 cm (2 in) from the throttle position (TP) sensor, toward the breakout | -- | -- |
S142 (LG5) | In the engine harness, approximately 4 cm (2 in) | -- | -- |
S146 | In the ABS-air chassis harness, approximately 94 cm (37 in) from the electronic brake control module (EBCM) | -- | -- |
S176 | In the engine harness, approximately 20 cm (8 in) from the injector harness connector breakout towards powertrain control module (PCM) | -- | -- |
S177 | In the engine harness, approximately 26 cm (10 in) from the injector harness connector breakout towards powertrain control module (PCM) | -- | -- |
S180 | In the right bank ignition coil harness, approximately 10 cm (4 in) to the rear of the #4 coil breakout | -- | -- |
S181 | In the left bank ignition coil harness, approximately 36 cm (14 in) from the C109 connector | -- | -- |
S182 | In the engine harness, approximately 4 cm (2 in) from the generator breakout | -- | -- |
S182 (LG5) | In the engine harness, approximately 16 cm (6 in) from generator terminal C1 | -- | -- |
S184 | In the engine harness, approximately 13 cm (5 in) from the breakout in the line for the mass air flow sensor | -- | -- |
S185 | In the engine harness, approximately 13 cm (5 in) from the breakout in the line for the starter solenoid wires | -- | -- |
S186 | In the engine harness, approximately 7 cm (3 in) from the P102 breakout toward the P100 | -- | -- |
S187 | In the fuel injector harness, approximately 8 cm (3 in) from the #5 injector breakout, toward the #3 injector | -- | -- |
S188 | In the fuel injector harness, approximately 7 cm (3 in) from the #6 injector breakout, toward the #4 injector | -- | -- |
S201 | In the IP harness, approximately 35 cm (14 in) from C200 | -- | -- |
S204 (LG5) | In the IP harness, approximately 4 cm (2 in) to the left of the IP fuse block breakout | -- | -- |
S208 | In the IP harness, approximately 9 cm (4 in) to the right of the hazard warning switch breakout | -- | -- |
S214 | In the IP harness, approximately 25 cm (10 in) to the right of the data link connector (DLC) breakout | -- | -- |
S220 | In the IP harness, approximately 15 cm (6 in) to the right of the data link connector (DLC) breakout | -- | -- |
S221 | In the IP harness, approximately 12 cm (5 in) to the right of the data link connector (DLC) breakout | -- | -- |
S225 (LG5) | In the IP harness, at the anode (+) end of the charge indicator diode (D200), approximately 4 cm (2 in) to the right of the data link connector (DLC) breakout | -- | -- |
S226 (LG5) | In the IP harness, at the cathode (-) end of the charge indicator diode (D200), approximately 10 cm (4 in) to the right of the data link connector (DLC) breakout | -- | -- |
S230 | In the IP harness, approximately 4 cm (2 in) to the right of the instrument panel cluster (IPC) connector breakout | -- | -- |
S232 | In the IP harness, approximately 59 cm (23 in) from the main harness, toward the IP harness connector | -- | -- |
S243 | In the IP harness, approximately 26 cm (10 in) to the right of the data link connector (DLC) breakout | -- | -- |
S245 | In the IP harness, approximately 4 cm (2 in) to the right of the break switch interface module breakout | -- | -- |
S404 | In the positive battery cable connector, at the end of the gray fusible link R | -- | -- |
S407 | In the fuel tank harness, approximately 13 cm (5 in) forward of the fuel pump breakout | -- | -- |
S408 | In the fuel tank harness, approximately 7 cm (3 in) forward of the fuel pump breakout | -- | -- |
S418 (HPZ) | In the two-speed rear axle harness, approximately 65 cm (26 in) forward of the two-speed rear axle shift relay breakout | -- | -- |
Power and Grounding Components Ground Distribution
Name | Location | Locator View | Connector End View |
|---|---|---|---|
Air Brake Dryer | On the outboard side of the left frame rail | Air Brake System Component Views in Air Brakes | Air Brake System Connector End Views in Air Brakes |
Air Brake Pressure Gauge Lamp | On the left side of the IP, to the right of the steering column, in the right accessory trim plate, inserted into the gauge | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Ammeter | On the left side of the IP, to the right of the steering column, in the right accessory trim plate, the bottom gauge | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Automatic Transmission (A/T) Modulator (LG5) | On the lower left side of the transmission | Engine Controls Component Views in Engine Controls 7.2L | Engine Controls Connector End Views in Engine Controls 7.2L |
Automatic Transmission (A/T) Modulator (LP4/L21) | On the lower left side of the transmission | Engine Controls Component Views in Engine Controls 7.4L | Engine Controls Connector End Views in Engine Controls 7.4L |
Automatic Transmission (A/T) Oil Temperature Gauge | On the left side of the IP, to the right of the steering column and right of the automatic transmission (A/T) selector control | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Automatic Transmission (A/T) Oil Temperature Gauge Sensor | On the lower right rear of the radiator, on the transmission oil cooler inlet fitting | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Automatic Transmission (A/T) Selector Control | On the left side of the IP, to the right of the steering column, on the center accessory trim plate | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Battery | On the top of the crossmember or relocated by the upfitter | ||
Battery, Center (TNR/TPL) | On the top of the crossmember, between the left battery and the right battery, or relocated by the upfitter | ||
Battery, Left (TNL/TNN) | On the top of the crossmember, the left battery, or relocated by the upfitter | ||
Battery, Left (TNR/TPL) | On the top of the crossmember, the left battery, or relocated by the upfitter | ||
Battery, Right (TNL/TNN) | On the top of the crossmember, the right battery, or relocated by the upfitter | ||
Battery, Right (TNR/TPL) | On the top of the crossmember, the right battery, or relocated by the upfitter | ||
Brake Fluid Level Switch | On the left side of the brake master cylinder reservoir | Hydraulic Brake Component Views in Hydraulic Brakes | Hydraulic Brake Connector End Views in Hydraulic Brakes |
Brake Switch Interface Module | In the center of the IP mounted on the shelf | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Data Link Connector (DLC) (LG5) | Under the left side of the IP | Data Link Communications Component Viewsin Data Link Communications | |
Data Link Connector (DLC) (LG5) | Under the left side of the IP | Engine Controls Component Views in Engine Controls-7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls-7.2L (Caterpillar®) |
Data Link Connector (DLC) (LP4/L21) | Under the left side of the IP | Data Link Communications Component Viewsin Data Link Communications | |
Data Link Connector (DLC) (LP4/L21) | Under the left side of the IP | Engine Controls Component Views in Engine Controls 7.4L | Engine Controls Connector End Views in Engine Controls 7.4L |
Daytime Running Lights (DRL) Control Module | On the left kick panel, in the DRL harness | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Daytime Running Lights (DRL) Diode Module | Under the right side of the IP, approximately 15 cm (6 in) from the relay center breakout | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Driver Information Center (DIC) (LG5) | On the left side of the IP, part of the instrument panel cluster (IPC) | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C1 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C2 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Driver Information Center (DIC) (LP4/L21) | On the left side of the IP, part of the instrument panel cluster (IPC) | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C1 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C2 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C1 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C2 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Electronic Brake Control Module (EBCM) (JE5) | On a bracket, on the left side, upper exterior bulkhead, on the top of the air brake application valve | Air Antilock Brake System Component Views in Air Antilock Brake Systems | Air Antilock Brake System Connector End Views in Air Antilock Brake Systems |
C1 (30 cavities) | In the electronic brake control harness, to the EBCM | Air Antilock Brake System Component Views in Air Antilock Brake Systems | Air Antilock Brake System Connector End Views in Air Antilock Brake Systems |
C2 (18 cavities) | In the electronic brake control harness, to the EBCM | Air Antilock Brake System Component Views in Air Antilock Brake Systems | Air Antilock Brake System Connector End Views in Air Antilock Brake Systems |
Electronic Brake Control Module (EBCM) (JE3) | On the inboard side of the left frame rail, to the rear of number one crossmember, on the bracket | Antilock Brake System Component Views in Antilock Brake Systems | Antilock Brake System Connector End Views in Antilock Brake Systems |
C1 (2 cavities) | In the electronic brake control harness, to the EBCM | Antilock Brake System Component Views in Antilock Brake Systems | Antilock Brake System Connector End Views in Antilock Brake Systems |
C2 (24 cavities) | In the electronic brake control harness, to the EBCM | Antilock Brake System Component Views in Antilock Brake Systems | Antilock Brake System Connector End Views in Antilock Brake Systems |
Electronic Throttle Actuator Control Module | In the center of the IP mounted on the shelf | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Electronic Throttle Actuator Control Module - C1 | In the center of the IP mounted on the shelf | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Electronic Throttle Actuator Control Module - C2 | In the center of the IP mounted on the shelf | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Engine Coolant Temperature (ECT) Gauge Sensor (LG5) | On the right side of the engine, on the right rear side of the coolant outlet housing | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Engine Coolant Temperature (ECT) Gauge Sensor (LP4/L21) | In the right hand cylinder head, above the spark plugs, between the #5 and #7 cylinder | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Engine Oil Pressure (EOP) Gauge Sensor (LG5) | On the left side of the engine block, on a tee, pointing up | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Ether Injection Control Valve (LG5) | In the engine compartment, on the right side of the bulkhead | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Ether Injection Diode (D101) (LG5) | In the engine harness, in the main harness, approximately 20 cm (8 in) from P100, toward the engine | -- | -- |
Ether Injection/ Engine Coolant Temperature (ECT) Sensor (LG5) | On the rear of the engine, on the cylinder head | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Exhaust Brake Solenoid Valve | On the left rear side of the back-of-the-cab crossmember | Engine Exhaust Brake Component Views in Engine Exhaust | Engine Exhaust Brake Connector End Views in Engine Exhaust |
Exhaust Brake Switch | On the center of the IP | Engine Exhaust Brake Component Views in Engine Exhaust | Engine Exhaust Brake Connector End Views in Engine Exhaust |
Flasher/ Relay Center | In the right side of the IP | Engine Exhaust Brake Connector End Views in Engine Exhaust | |
Fuel Heater (LG5) | On the left side of the engine, part of the fuel/ water separator (fuel filter) | Engine Controls Component Views in Engine Controls-7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls-7.2L (Caterpillar®) |
Fuel Sender and Fuel Pump (FP) (LP4/L21) | On the outboard side of the left frame rail, in the fuel tank | Engine Controls Component Views in Engine Controls-7.4L | Engine Controls Connector End Views in Engine Controls-7.4L |
Fuel Sender and Fuel Pump (FP) (LP4/L21) | On the outboard side of the left frame rail, in the fuel tank | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Fuel Sender, Left (LG5) | On the outboard side of the left frame rail, in the fuel tank | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Fuel Sender, Right (LG5) | On the outboard side of the right frame rail, in the fuel tank | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Fuse/Relay Center | On the right side of the dash | -- | -- |
Hazard Warning Switch | On the left side of the IP, to the right of the steering column, on the right accessory trim plate | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
HAZARD Warning Name Plate | On the left side of the IP, to the right of the steering column, on the right accessory trim plate, | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Headlamp, Left High/ Low | On the left front side of the hood | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Headlamp, Right High/ Low | On the right front side of the hood | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Heated Moisture Ejector Valve | On bottom rear of the primary air reservoir | Air Brake System Component Views in Air Brakes | Air Brake System Connector End Views in Air Brakes |
HI IDLE Switch (LG5) | On the left side of the IP, to the right of the steering column, on the left IP accessory trim plate | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
HI IDLE Switch (LP4/L21) | On the center of the IP | Engine Controls Component Views in Engine Controls 7.4L | Engine Controls Connector End Views in Engine Controls 7.4L |
Horn, A-Note (High) | Behind the front bumper, on the front right side of the crossmember | Horn Component Views in Horns | Horn Connector End Views in Horns |
Horn, F-Note (Low) | Behind the front bumper, on the front left side of the crossmember | Horn Component Views in Horns | Horn Connector End Views in Horns |
Hourmeter | On the left side of the IP, to the right of the steering column, on the center accessory trim plate, the top gauge | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Ignition Coils | On the left and right side valve covers | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Ignition Relay | In the mini-relay center, position A | ||
Ignition Switch | On the top side of the lower steering column | ||
C1 (5 cavities) | In the IP harness, to the ignition switch | ||
C2 (4 cavities) | In the IP harness, to the ignition switch | ||
Low Air Pressure Switch | Under the IP, above the accelerator pedal | Air Brake System Component Views in Air Brakes | Air Brake System Connector End Views in Air Brakes |
Low Air Pressure Switch | Under the IP, above the accelerator pedal | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Low Engine Coolant Level Indicator Switch (LG5) | On the right side of the radiator, on the lower left bottom side of the radiator surge tank | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
Low Engine Coolant Level Indicator Switch (LG5) | On the right side of the radiator, on the lower left bottom side of the radiator surge tank | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Mass Air Flow (MAF) Sensor | In the air duct, between the air filter housing and the throttle body, on the right side of the engine | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
MaxiFuse® Block/ Mini-Relay Center | On the right side of the IP, under the access cover | ||
Multifunction Alarm Module (MFAM) (LG5) | In the center of the IP harness, behind the right access panel | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
C1 (16 cavities) | In the IP harness, to the MFAM | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
C2 (4 cavities) (KPJ) | In the IP harness to the MFAM | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
Multifunction Alarm Module (MFAM) (LP4/L21) | In the center of the IP, behind the right access panel | Engine Controls Component Views in Engine Controls 7.4L | Engine Controls Connector End Views in Engine Controls 7.4L |
Multifunction Alarm Module (MFAM) Jumper (Shunt) () | In the IP harness, taped to the main harness, between the IP fuse block and MFAM breakouts. | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
Neutral Switch (Automatic Transmission) | On the lower right side of the transmission | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Oxygen Sensor (O2S) Left Pre-Convertor | On the left exhaust pipe, below the exhaust manifold | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Oxygen Sensor (O2S) Right Pre-Convertor | On the right exhaust pipe, below the exhaust manifold | Engine Controls Component Views in Engine Controls | Engine Controls Connector End Views in Engine Controls |
Park and Turn Signal Lamp, Left Front | On the top of the left front fender | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Park and Turn Signal Lamp, Right Front | On the top of the right front fender | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Park Brake Switch (JE5) | On the right side of the IP, on the park brake valve | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Park Brake Switch (JE5) | On the right side of the IP, on the park brake valve | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Park Brake Switch (JE3) | On the left kick panel, to the right rear of the park brake lever | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Park Brake Switch (JE3) | On the left kick panel, to the right rear of the park brake lever | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Power Brake (P/B) Booster Fluid Flow Switch | On the left side of the bulkhead, behind the brake master cylinder, on the top of the P/B booster pump housing | Hydraulic Brake Component Views in Hydraulic Brakes | Hydraulic Brake Connector End Views in Hydraulic Brakes |
Power Brake (P/B) Booster Pump Motor (JE3) | On the upper left engine-side of the bulkhead, at the brake master cylinder | Hydraulic Brake Component Views in Hydraulic Brakes | -- |
Power Brake (P/B) Booster Pump Motor (JE3) | On the upper left engine-side of the bulkhead, at the brake master cylinder, part of the power brake (P/B) booster pump | Hydraulic Brake Component Views in Hydraulic Brakes | Hydraulic Brake Connector End Views in Hydraulic Brakes |
Powertrain Control Module (PCM) (LG5) | On the left rear side of the engine block | Engine Controls Component Views in Engine Controls-7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls-7.2L (Caterpillar®) |
Powertrain Control Module (PCM) (LP4/L21) | Under the left front cowel in front of driver | Engine Controls Component Views in Engine Controls-7.4L | -- |
Powertrain Control Module (PCM) - C1 (LP4/L21) (32 cavities) | Under the left front cowel in front of driver | Engine Controls Component Views in Engine Controls-7.4L | Engine Controls Connector End Views in Engine Controls-7.4L |
Powertrain Control Module (PCM) - C2 (LP4/L21) (24 cavities) | Under the left front cowel in front of driver | Engine Controls Component Views in Engine Controls-7.4L | Engine Controls Connector End Views in Engine Controls-7.4L |
Radiator Shutter Control Valve (LG5) | On the left side of the radiator core support | Cooling System Component Views in Engine Cooling | Cooling System Connector End Views in Engine Cooling |
Radiator Shutter/ Engine Coolant Temperature (ECT) Switch (LG5) | On the right side of the engine, on the upper left side of the coolant outlet extension housing | Cooling System Component Views in Engine Cooling | Cooling System Connector End Views in Engine Cooling |
Speedo Adapter | In the right side of the IP under the MaxiFuse® block/ mini-relay center | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Engine Electrical Connector End Views in Engine Electrical |
Stoplamp Switch (JE5) | On the brake pedal support | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
C1 (4 cavities) | In the IP harness, to the stoplamp switch | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
C2 (2 cavities) | In the IP harness, to the stoplamp switch | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Stoplamp Switch (JE3) | On the brake pedal support | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
C1 (4 cavities) | In the IP harness, to the stoplamp switch | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
C2 (2 cavities) | In the IP harness, to the stoplamp switch | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Stoplamp Switch Interface Module (LG5) | In the IP, left of the IP fuse block | Engine Controls Component Views in Engine Controls-7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls-7.2L (Caterpillar®) |
Two-Speed Rear Axle Air Shift Switch (HPZ) | On the left frame rail, forward of the rear axle, on the two-speed rear axle quick-release valve | Rear Axle Component Views in Rear Axle Controls | Rear Axle Connector End Views in Rear Axle Controls |
Two-Speed Rear Axle Shift Actuator (Motor) (HPZ) | On the front of the differential housing | Rear Axle Component Views in Rear Axle Controls | Rear Axle Connector End Views in Rear Axle Controls |
Upfitter Connector (C212, 23 cavities) | Under the left side of the IP, by the left kick panel | ||
C102 (7 cavities) | In the forward lamps harness, to the engine harness, on the right lower front of the hood, under the right headlamp | -- | |
C104 (2 cavities) (LG5) | In the engine harness, to the radiator shutter jumper harness, on the top of the left front side of the engine | -- | |
C109 (8 cavities) (LP4/L21) | Engine harness to the odd bank (left side) ignition coil harness | -- | |
C110 (10 cavities) (LP4/L21) | Engine harness to the even bank (right side) ignition coil harness | -- | |
C112 (2 cavities) (LG5) | In the engine harness, to the engine exhaust brake harness, near the frame rail, by the starter | -- | |
C116 (5 cavities) (LG5) | In the engine harness, to the fuel tank harness, at the right frame rail, near the starter | -- | |
C116 (5 cavities) (LP4/L21) | In the engine harness at the right frame rail, near the starter | -- | |
C117 (3 cavities) | In the engine harness, to the two-speed rear axle jumper harness, near the frame rail, by the starter | -- | |
C200 (56 cavities) (LG5) | In the IP harness, to the engine harness, under the right side of the IP | -- | |
C200 (56 cavities) (LP4/L21) | In the IP harness, to the engine harness, under the right side of the IP | -- | |
C210 | In the right center of the dash, behind IP fuse block | -- | |
C223 (2 cavities) (JE3) | In the park brake switch jumper, to the IP harness, in the left kick panel, over the rear park brake lever | -- | |
C232 (3 cavities) (JE3) | In the IP harness, inline to the ABS-hydraulic brake harness, near the left side of the interior bulkhead | -- | |
C233 (2 cavities) (JE3)
| In the IP harness, inline to the ABS-hydraulic brake harness, near the left side of the interior bulkhead | -- | |
C400 (1 cavity) (LG5) | On the positive battery cable harness, to the engine harness, near the battery | -- | |
C402 (2 cavities) (LG5) | On the positive battery cable harness, to the engine harness, near the battery | -- | |
C404 (3 cavities) (HPZ) | In two-speed rear axle jumper harness, to the two-speed rear axle harness | -- | |
C408 | In the engine harness, to the transmission harness, on the left side of the engine, at the bellhousing | -- | |
C409 (8 cavities) (LG5) | In the engine harness, to the transmission harness, on the left side of the engine, at the bellhousing | -- | |
C409 (8 cavities) (LP4/L21) | In the engine harness, to the transmission harness, on the left side of the engine, at the bellhousing | -- | |
C415 | In the engine harness, to the transmission harness, on the left side of the engine, at the bellhousing | -- | |
D101 (Ether Injection Diode) (LG5) | In the engine harness, in the main harness, approximately 20 cm (8 in) from P100, toward the engine | -- | -- |
G100 (LP4/L21) | From the starter motor side ground stud (G103) to the right frame rail ground (G100) | -- | -- |
G101 (LG5) | From the starter motor end ground stud (G101) to the right frame rail ground (G100) | -- | -- |
G102 (LG5) | From the engine harness, to the lower right front side of the engine | -- | -- |
G102 (LP4/L21) | From the engine harness, to the back of the left cylinder head | -- | -- |
G103 (KPG, LG5) | From the starter motor right side ground stud (G103) to the right frame rail ground (G100) | -- | -- |
G103 (LP4/L21) | From the starter motor side ground stud (G103) to the right frame rail ground (G100) | -- | -- |
G105 | The body ground strap and the ABS-air harness, from the outboard side of the left frame rail (G105), to the lower left side of the exterior bulkhead (G107) | -- | -- |
G106 (LP4/L21) | From the engine harness to the left rear side of the left cylinder head | -- | -- |
G107 | The body ground strap from the lower left side of the exterior bulkhead (G107) to the outboard side of the left frame rail (G105) | -- | -- |
G117 (LG5) | The engine harness ground and generator ground strap, at the right side of the engine (G117) to the generator (G119) | -- | -- |
G117 (LP4/L21) | The generator ground strap, from the right side of the engine (G117) to the generator (G119) | -- | -- |
G119 (LG5) | The generator ground strap, from the right side of the engine (G117) to the generator (G119) | -- | -- |
G119 (LP4/L21) | The generator ground strap, from the right side of the engine (G117) to the generator (G119) | -- | -- |
G120 (LP4/L21) | The ground cable, at the lower left side of the engine (G120), to the left frame rail (G121) | -- | -- |
G121 (LP4/L21) | The ground cable, at the left frame rail (G121) to the lower left side of the engine (G120) | -- | -- |
G124 (KPJ, LG5) | From the starter solenoid ground stud (G124) to the starter motor end ground stud (G101) | -- | -- |
G207 | Near the left kick panel, at the park brake switch mounting screw, on the right side of the park brake lever bracket | -- | -- |
G208 | From the IP harness, on the top left side of the steering column | -- | -- |
G413 | The battery negative cable extension, at the left frame rail | -- | -- |
G414 | The battery negative cable extension, at the right frame rail | -- | -- |
P100 | On the right side of the bulkhead | -- | -- |
P102 | On the right side of the bulkhead | -- | -- |
P103 | On the left side of the bulkhead | -- | -- |
S105 | In the forward lamps harness, approximately 15 cm (6 in) to the headlamp, the right high/ low beam breakout | -- | -- |
S138 | In the engine harness, approximately 4 cm (2 in) from the generator harness breakout | -- | -- |
S138 (LG5) | In the engine harness, approximately 11 cm (4 in) from the main harness, toward the forward lamps harness connector | -- | -- |
S141 | In the engine harness, approximately 17 cm (7 in) throttle position (TP), from generator harness breakout | -- | -- |
S142 (LP4/L21) | In the engine harness, approximately 4 cm (2 in) from the throttle position (TP) sensor, toward the breakout | -- | -- |
S142 (LG5) | In the engine harness, approximately 4 cm (2 in) before from the first breakout toward P100 and P103 | -- | -- |
S169 (LG5) | In the engine harness, approximately 4 cm (2 in) before from the first breakout toward P100 and P103 | -- | -- |
S170 | In the air-antilock brake harness, approximately 87 cm (34 in) from electronic brake control module (EBCM) | -- | -- |
S178 | In the right bank ignition coil harness, approximately 18 cm (7 in) from the C110 connector | -- | -- |
S179 | In the left bank ignition coil harness, approximately 15 cm (6 in) from the C109 connector | -- | -- |
S210 | In the IP harness, approximately 4 cm (2 in) to the right of the hazard warning switch breakout | -- | -- |
S220 | In the IP harness, approximately 15 cm (6 in) to the right of the data link connector (DLC) breakout | -- | -- |
S221 | In the IP harness, approximately 12 cm (5 in) to the right of the data link connector (DLC) breakout | -- | -- |
S227 | In the IP harness, approximately 57 cm (22 in) from the headlamps dimmer switch breakout | -- | -- |
S231 | In the IP harness, approximately 66 cm (26 in) from the main harness, toward the IP harness connector | -- | -- |
S241 (LG5) | In the engine harness, at the cathode (-) end of the ether injection diode (D101), approximately 11 cm (4 in) from the ether injection control valve breakout | -- | -- |
S261 (JE3) | In the ABS-hydraulic jumper harness, approximately 40 cm (16 in) from the exterior bulkhead pass-through P103 | -- | -- |
S405 | In the fuel tank harness, approximately 196 cm (77 in) to the rear of the fuel harness connector | -- | -- |
Power and Grounding Components Upfitter Provisions
Name | Location | Locator View | Connector End View |
|---|---|---|---|
Backup Lamps Switch (Automatic Transmission) | On the lower right side of the transmission | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Backup Lamps Switch (Manual Transmission) | On the top of the transmission, left of the gear shift lever | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Clutch/ Starter Interlock Switch (LG5) | On the clutch pedal bracket | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Clutch/ Starter Interlock Switch (LP4/L21) | On the clutch pedal bracket | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Clutch/ Starter Interlock Switch Jumper Harness (C215, 2 cavities) (Automatic Transmission) (LG5) | On the clutch switch jumper, to the IP harness, at the clutch pedal support bracket | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Clutch/ Starter Interlock Switch Jumper Harness (C215, 2 cavities) (Automatic Transmission) (LP4/L21) | On the clutch switch jumper, to the IP harness, at the clutch pedal support bracket | Engine Electrical Component Views in Engine Electrical | Engine Electrical Connector End Views in Engine Electrical |
Daytime Running Lights (DRL) Control Module | On the left kick panel, in the DRL harness | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Driver Information Center (DIC) (LG5) | On the left side of the IP, part of the instrument panel cluster (IPC) | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C1 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C2 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Driver Information Center (DIC) (LP4/L21) | On the left side of the IP, part of the instrument panel cluster (IPC) | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C1 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C2 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C1 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
C2 (11 cavities) | In the IP harness, to the DIC | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Flasher/ Relay Center | In the right side of the IP | Engine Exhaust Brake Connector End Views in Engine Exhaust | |
Hazard Warning Switch | On the left side of the IP, to the right of the steering column, on the right accessory trim plate | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Headlamps Switch | On the left side of the IP, to the left of the instrument panel cluster (IPC) | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
IP Fuse Block | In the center of the IP, to the left of the instrument panel cluster (IPC) | ||
IP Lamps Dimmer Switch | On the left side of the IP, to the left of the instrument panel cluster (IPC) | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
MaxiFuse® Block 2 | On the right side of the IP, under the access cover, on the center of the MaxiFuse® block/ mini-relay center | ||
MaxiFuse® Block/ Mini-Relay Center | On the right side of the IP, under the access cover | ||
Multifunction Alarm Module (MFAM) (LG5) | In the center of the IP harness, behind the right access panel | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
C1 (16 cavities) | In the IP harness, to the MFAM | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
C2 (4 cavities) (KPJ) | In the IP harness to the MFAM | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
Multifunction Alarm Module (MFAM) (LP4/L21) | In the center of the IP, behind the right access panel | Engine Controls Component Views in Engine Controls 7.4L | Engine Controls Connector End Views in Engine Controls 7.4L |
Multifunction Alarm Module (MFAM) Jumper (Shunt) (KPJ, LG5) | In the IP harness, taped to the main harness, between the IP fuse block and MFAM breakouts. | Engine Controls Component Views in Engine Controls 7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls 7.2L (Caterpillar®) |
Park Brake Switch (JE5) | On the right side of the IP, on the park brake valve | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Park Brake Switch (JE5) | On the right side of the IP, on the park brake valve | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Park Brake Switch (JE3) | On the left kick panel, to the right rear of the park brake lever | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Park Brake Switch (JE3) | On the left kick panel, to the right rear of the park brake lever | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console |
Powertrain Control Module (PCM) (LG5) | On the left rear side of the engine block | Engine Controls Component Views in Engine Controls-7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls-7.2L (Caterpillar®) |
Powertrain Control Module (PCM) (LP4/L21) | Under the left front cowl in front of driver | Engine Controls Component Views in Engine Controls-7.4L | -- |
Powertrain Control Module (PCM) - C1 (LP4/L21) (32 cavities) | Under the left front cowl in front of driver | Engine Controls Component Views in Engine Controls-7.4L | Engine Controls Connector End Views in Engine Controls-7.4L |
Powertrain Control Module (PCM) - C2 (LP4/L21) (24 cavities) | Under the left front cowl in front of driver | Engine Controls Component Views in Engine Controls-7.4L | Engine Controls Connector End Views in Engine Controls-7.4L |
Starter Solenoid (LG5) | On the lower right side of the engine | Engine Electrical Component Views in Engine Electrical | -- |
C1 (ring terminal) | On the positive battery cable to the starter solenoid BAT stud, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C2 (ring terminal) | In the engine harness, to the starter solenoid BAT stud, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C4 (ring terminal) | In the engine harness, to the starter solenoid SOL stud, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
Starter Solenoid (KPJ, LG5) | On the lower right side of the engine | Engine Electrical Component Views in Engine Electrical | -- |
C2 (ring terminal) | In the engine harness, to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C4 (ring terminal) | In the engine harness, to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
Starter Solenoid (LP4/L21) | On the lower right side of the engine | Engine Electrical Component Views in Engine Electrical | -- |
C1 (ring terminal) | On the positive battery cable to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C2 (ring terminal) | In the engine harness, to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C4 (ring terminal) | In the engine harness, to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C1 (ring terminal) | On the positive battery cable to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C2 (ring terminal) | In the engine harness, to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
C4 (ring terminal) | In the engine harness, to the starter solenoid, at the starter motor | Engine Electrical Component Views in Engine Electrical | -- |
Stoplamp Switch (JE5) | On the brake pedal support | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
C1 (4 cavities) | In the IP harness, to the stoplamp switch | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
C2 (2 cavities) | In the IP harness, to the stoplamp switch | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Stoplamp Switch () | On the brake pedal support | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
C1 (4 cavities) | In the IP harness, to the stoplamp switch | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
C2 (2 cavities) | In the IP harness, to the stoplamp switch | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Stoplamp Switch Interface Module (LG5) | In the IP, left of the IP fuse block | Engine Controls Component Views in Engine Controls-7.2L (Caterpillar®) | Engine Controls Connector End Views in Engine Controls-7.2L (Caterpillar®) |
Turn Signal Switch | On the left side of the steering wheel, part of the multifunction switch | Lighting Systems Component Views in Lighting Systems | Lighting Systems Connector End Views in Lighting Systems |
Upfitter Connector (C212, 23 cavities) | Under the left side of the IP, by the left kick panel | ||
Upfitter Connector Jumper (Shunt) (23 cavities) | Under the left side of the IP, by the left kick panel | ||
Upfitter IP (+) Junction Block | Under the left side of the IP, on the left kick panel | -- | |
Upfitter Provision for Windshield Washer Motor | In the engine harness, the pink wire, taped to the main harness, approximately 15 cm (6 in) from pass-through P100, at the exterior bulkhead | -- | |
C200 (56 cavities) (LG5) | In the IP harness, to the engine harness, under the right side of the IP | -- | |
C200 (56 cavities) (LP4/L21) | In the IP harness, to the engine harness, under the right side of the IP | -- | |
C215 (2 cavities) (Automatic Transmission) | In the IP harness, to the clutch/ starter interlock switch jumper, near the brake pedal | -- | |
C233 (2 cavities) (JE3) | In the IP harness, inline to the ABS-hydraulic brake harness, near the left side of the interior bulkhead | -- | |
C409 (8 cavities) (LG5) | In the engine harness, to the transmission harness, on the left side of the engine, at the bellhousing | -- | |
C409 (8 cavities) (LP4/L21) | In the engine harness, to the transmission harness, on the left side of the engine, at the bellhousing | -- | |
G101 (LG5) | From the starter motor end ground stud (G101) to the right frame rail ground (G100) | -- | -- |
G102 (LG5) | From the engine harness, to the lower right front side of the engine | -- | -- |
G102 (LP4/L21) | From the engine harness, to the back of the left cylinder head | -- | -- |
G208 | From the IP harness, on the top left side of the steering column | -- | -- |
P100 | On the right side of the bulkhead | -- | -- |
S122 | In the engine harness, approximately 36 cm (14 in) from the starter solenoid breakout | -- | -- |
S122 (LG5) | In the engine harness, approximately 18 cm (7 in) from the G401/ G402 breakout | -- | -- |
S142 (LG5) | In the engine harness, approximately 4 cm (2 in) | -- | -- |
S212 | In the IP harness, approximately 7 cm (3 in) to the left of the hazard warning switch breakout | -- | -- |
S218 | In the IP harness, approximately 17 cm (7 in) to the right of the data link connector (DLC) breakout | -- | -- |
S219 | In the IP harness, approximately 17 cm (7 in) to the right of the data link connector (DLC) breakout | -- | -- |
S220 | In the IP harness, approximately 15 cm (6 in) to the right of the data link connector (DLC) breakout | -- | -- |
S221 | In the IP harness, approximately 12 cm (5 in) to the right of the data link connector (DLC) breakout | -- | -- |
S222 | In the IP harness, approximately 11 cm (4 in) to the right of the data link connector (DLC) breakout | -- | -- |
S227 | In the IP harness, approximately 57 cm (22 in) from the headlamps dimmer switch breakout | -- | -- |
S230 | In the IP harness, approximately 4 cm (2 in) to the right of the instrument panel cluster (IPC) connector breakout | -- | -- |
S232 | In the IP harness, approximately 59 cm (23 in) from the main harness, toward the IP harness connector | -- | -- |
S233 | In the IP harness, approximately 9 cm (4 in) to the right of the daytime running lights (DRL) module breakout | -- | -- |
