Name | Location | Locator View | Connector End View |
|---|---|---|---|
Air Intake Heater (Cat® Diesel) | Between the air intake housing and the intake manifold | -- | |
Air Intake Heater Relay (Cat® Diesel) | On the top right side of the cylinder head | -- | |
Ammeter | On the left side of the IP, to the right of the steering column, in the right accessory trim plate, the bottom gauge | ||
Battery | On the top of the crossmember or relocated by the upfitter | -- | |
Body Ground Strap | From the lower left side of the exterior bulkhead (G107) to the outboard side of the left frame rail (G105) | -- | |
Clutch/ Starter Interlock Switch (Cat® Diesel) | On the clutch pedal bracket | ||
Clutch/ Starter Interlock Switch (Gasoline) | On the clutch pedal bracket | ||
Clutch/ Starter Interlock Switch (GM Diesel) | On the clutch pedal bracket | ||
Electronic Brake Control Module (EBCM) (ABS-Air) | On a bracket, on the left side, upper exterior bulkhead, on the top of the air brake application valve | -- | |
Electronic Brake Control Module (EBCM) (ABS-Hydraulic) | On the inboard side of the left frame rail, to the rear of number one crossmember, on the bracket | -- | |
Ether Injection Control Valve (Cat® Diesel) | In the engine compartment, on the right side of the bulkhead | ||
Ether Injection Control Valve Relay (Cat® Diesel) | In the MaxiFuse© block/ mini-relay center, position E | -- | |
Ether Injection/ Engine Coolant Temperature (ECT) Sensor (Cat® Diesel) | On the rear of the engine, on the cylinder head | ||
Flasher/ Relay Center | In the right side of the IP | -- | |
Fuel Gauge | On the left side of the IP, part of the instrument panel cluster (IPC) | -- | |
Fusible Link N (rust) (Diesels) | In the engine harness, to the generator B+ stud | -- | -- |
Fusible Link P (blue) (Cat® Diesel and Gasoline) | In the engine harness, in the main harness at starter solenoid C2, B+ stud | -- | -- |
Fusible Link R (gray) (ABS-Hydraulic) | On the positive battery cable end | -- | -- |
Fusible Link S (blue) (Cat® Diesel) | In the engine harness, in the main harness, approximately 35 cm (14 in) from the breakout to the starter solenoid | -- | -- |
Fusible Link S (blue) (Gasoline) | In the engine harness, in the main and starter harness breakout, at the breakout to the starter solenoid | -- | -- |
Fusible Link S (blue) (GM Diesel) | In the engine harness, in the main harness, approximately 23 cm (9 in) from the breakouts to the generator and starter solenoid, toward the IP | -- | -- |
Generator (Cat® Diesel) | On the right side of the engine | -- | |
Generator (Gasoline) | On the upper right side of the engine | -- | |
Generator Fuse | Taped to the engine harness at the rear of the generator | -- | |
Hourmeter | On the left side of the IP, to the right of the steering column, on the center accessory trim plate, the top gauge | ||
IP Fuse Block | Upper right corner of IP | -- | |
Ignition Switch | On the top side of the lower steering column | -- | |
Instrument Panel Cluster (IPC) | In the left side of the IP | ||
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 | -- | |
Multifunction Alarm Module (MFAM) (Cat® Diesel) | In the center of the IP harness, behind the right access panel | -- | |
Powertrain Control Module (PCM) (Cat® Diesel) | On the left rear side of the engine block | ||
Powertrain Control Module (PCM) (Gasoline) | Under the right side of the IP | -- | |
Powertrain Control Module (PCM) (GM Diesel) | Under the right side of the IP | -- | |
Starter Motor (Cat® Diesel) | On the lower right side of the engine | -- | |
Starter Motor (Cat® Diesel and HD Starter w/ Overcrank Protection) | On the lower right side of the engine | -- | |
Starter Motor (Gasoline) | On the lower right side of the engine | -- | |
Starter Motor (GM Diesel) | On the lower right side of the engine | -- | |
Starter Relay | In the flasher/ relay center, position 2-A | -- | |
Starter Solenoid (Cat® Diesel) | On the lower right side of the engine | -- | |
C1 (ring terminal) | On the positive battery cable to the starter solenoid Bat stud, at the starter motor | -- | |
C4 (ring terminal) | In the engine harness, to the starter solenoid Sol stud, at the starter motor | -- | |
Starter Solenoid (Cat® Diesel and HD Starter w/ Overcrank Protection) | On the lower right side of the engine | -- | |
Starter Solenoid (Gasoline) | On the lower right side of the engine | -- | |
C1 (ring terminal) | On the positive battery cable to the starter solenoid, at the starter motor | -- | |
C4 (ring terminal) | In the engine harness, to the starter solenoid, at the starter motor | -- | |
Starter Solenoid (GM Diesel) | On the lower right side of the engine | -- | |
C1 (ring terminal) | On the positive battery cable to the starter solenoid, at the starter motor | -- | |
C4 (ring terminal) | In the engine harness, to the starter solenoid, at the starter motor | -- | |
Starter Thermal Switch (Cat® Diesel and HD Starter w/ Overcrank Protection) | On the lower right side of the engine, on the end of the starter motor | ||
Stoplamps Switch Interface Module (Cat® Diesel) | In the IP, left of the IP fuse block | ||
Tachometer | On the left side of the IP, part of the instrument panel cluster (IPC) | -- | |
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 | ||
C106A (1 cavity) (Cat® Diesel) | In the engine harness, to the engine harness, near the starter solenoid breakout | -- | |
C106A (1 cavity) (Cat® Diesel and HD Starter w/ Overcrank Protection) | In the starter motor overcrank protection jumper harness, to the engine harness, near the starter solenoid breakout | -- | |
C106B (1 cavity) (Cat® Diesel) | In the engine harness, to the engine harness, near the starter solenoid breakout | -- | |
C106B (1 cavity) (Cat® Diesel and HD Starter w/ Overcrank Protection | In the starter motor overcrank protection jumper harness, to the engine harness, near the starter solenoid breakout | -- | |
C119 (7 cavities) (Cat® Diesel) | 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) (Gasoline) | In the engine harness, to the ABS-hydraulic chassis harness, in the engine compartment, on the left side of the bulkhead | -- | |
C119 (7 cavities) (GM Diesel) | In the ABS-hydraulic jumper harness, to the ABS-hydraulic chassis harness, in the engine compartment, on the left side of the bulkhead | -- | |
C127 (Cat® Diesel | On the engine harness, to the Cat® diesel engine harness, near the air intake heater relay | -- | |
C200 (56 cavities) (Cat® Diesel) | In the IP harness, to the engine harness, under the right side of the IP | -- | |
C200 (56 cavities) (Gasoline) | In the IP harness, to the engine harness, under the right side of the IP | -- | |
C200 (56 cavities) (GM Diesel) | 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 | -- | |
C235 (1 cavity) | In the engine harness, between C200 and P100 | -- | |
C400 (1 cavity) (Cat® Diesel) | On the positive battery cable harness, to the engine harness, near the battery. | -- | |
C402 (2 cavities) (Cat® Diesel) | On the positive battery cable harness, to the engine harness, near the battery | -- | |
C409 (8 cavities) (Cat® Diesel) | In the engine harness, to the transmission harness, on the left side of the engine, at the bellhousing | -- | |
C409 (8 cavities) (Gasoline) | In the engine harness, to the transmission harness, on the left side of the engine, at the bellhousing | -- | |
C409 (8 cavities) (GM Diesel) | In the engine harness, to the transmission harness, on the left side of the engine, at the bellhousing | -- | |
D200 (Charge Indicator Diode) (Cat® Diesel) | In the IP harness, in the main harness, the in-line generator diode, approximately 4 cm (1.6 in) to the left of the data link connector (DLC) breakout | -- | -- |
G102 (Cat® Diesel) | From the engine harness, to the lower right front side of the engine | -- | -- |
G102 (Gasoline) | From the engine harness, to the back of the left cylinder head | -- | -- |
G102 (GM Diesel) | From the engine harness, to the right side of the top front of the engine | -- | -- |
G117 (Cat® Diesel) | The engine harness ground and generator ground strap, at the right side of the engine (G117) to the generator (G119) | -- | -- |
G117 (Gasoline) | The generator ground strap, from the right side of the engine (G117) to the generator (G119) | -- | -- |
G117 (GM Diesel) | The generator ground strap, from the right side of the engine (G117) to the generator (G119) | -- | -- |
G119 (Cat® Diesel) | The generator ground strap, from the right side of the engine (G117) to the generator (G119) | -- | -- |
G119 (Gasoline) | The generator ground strap, from the right side of the engine (G117) to the generator (G119) | -- | -- |
G119 (GM Diesel) | The engine harness and generator ground strap, from the right side of the engine (G117) to the generator (G119) | -- | -- |
G400 | From the negative battery cable to the right frame rail | -- | -- |
G400 | From the negative battery cable to the left frame rail | -- | -- |
P100 | On the right side of the bulkhead | -- | -- |
P102 | On the right side of the bulkhead | -- | -- |
S121 | In the engine harness, approximately 16 cm (6.3 in) from the starter solenoid terminal C3 | -- | -- |
S121 (GM Diesel) | In the engine harness, approximately 24 cm (9.4 in) from the low engine coolant level indicator switch | -- | -- |
S122 | In the engine harness, approximately 36 cm (14.2 in) from the starter solenoid breakout | -- | -- |
S122 (Cat® Diesel) | In the engine harness, approximately 18 cm (7.1 in) from the G401 G402 breakout | -- | -- |
S123 | In the engine harness, approximately 10 cm (3.9 in) from the vacuum tube breakout | -- | -- |
S123 (Cat® Diesel) | In the engine harness, approximately 34 cm (13.4 in) from the ground breakout | -- | -- |
S123 (GM Diesel) | In the engine harness, approximately 20 cm (7.9 in) to the glow plug relay breakout | -- | -- |
S128 | In the engine harness, approximately 5 cm (2.0 in) from the manifold absolute pressure (MAP) sensor breakout | -- | -- |
S128 (Cat® Diesel) | In the engine harness, approximately 4 cm (1.6 in) from the engine coolant temperature (ECT) gauge sensor breakout | -- | -- |
S129 | In the engine harness, approximately 4 cm (1.6 in) toward the fuel injector breakout from the throttle position (TP) sensor breakout | -- | -- |
S129 (GM Diesel) | In the engine harness, approximately 17 cm (6.7 in) to the rear of the glow plug relay breakout | -- | -- |
S208 | In the IP harness, approximately 9 cm (3.5 in) to the right of the hazard warning switch breakout | -- | -- |
S211 | In the IP harness, approximately 4 cm (1.6 in) to the left of the hazard warning switch breakout | -- | -- |
S212 | In the IP harness, approximately 7 cm (2.6 in) to the left of the hazard warning switch breakout | -- | -- |
S214 | In the IP harness, approximately 25 cm (9.8 in) to the right of the data link connector (DLC) breakout | -- | -- |
S219 | In the IP harness, approximately 17 cm (6.7 in) to the right of the data link connector (DLC) breakout | -- | -- |
S220 | In the IP harness, approximately 15 cm (5.9 in) to the right of the data link connector (DLC) breakout | -- | -- |
S221 | In the IP harness, approximately 12 cm (4.7 in) to the right of the data link connector (DLC) breakout | -- | -- |
S225 (Cat® Diesel) | In the IP harness, at the anode (+) end of the charge indicator diode (D200), approximately 4 cm (1.6 in) to the right of the data link connector (DLC) breakout | -- | -- |
S226 (Cat® Diesel) | In the IP harness, at the cathode (-) end of the charge indicator diode (D200), approximately 10 cm (3.9 in) to the right of the data link connector (DLC) breakout | -- | -- |
S230 | In the IP harness, approximately 4 cm (1.6 in) to the right of the instrument panel cluster (IPC) connector breakout | -- | -- |
S232 | In the IP harness, approximately 59 cm (23.2 in) from the main harness, toward the IP harness connector | -- | -- |
S240 (Cat® Diesel) | In the engine harness, at the anode (+) end of the ether injection diode (D101), approximately 8 cm (3.1 in) from the ether injection control valve breakout | -- | -- |
S241 (Cat® Diesel) | In the engine harness, at the cathode (-) end of the ether injection diode (D101), approximately 11 cm (4.3 in) from the ether injection control valve breakout | -- | -- |
S404 | In the positive battery cable connector, at the end of the gray fusible link R | -- | -- |
