Name | Location | Locator View | Connector End View | ||||||||||||||||
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A/C Compressor Clutch (C60) | On the upper right front of the engine, on the front of A/C compressor behind pulley, part of the A/C compressor | ||||||||||||||||||
A/C Compressor Clutch Diode (C60) | In the A/C harness, approximately 20.5 cm (8.1 in) from the A/C compressor clutch breakout, toward the A/C compressor clutch relay | ||||||||||||||||||
A/C Compressor Clutch Relay (C60) | In the engine compartment mounted to the front right of the radiator shroud | ||||||||||||||||||
A/C High Pressure Switch (C60) | Mounted on the back side of the A/C compressor | ||||||||||||||||||
A/C Low Pressure Switch (C60) | In the engine compartment mounted to the A/C accumulator/dehydrator | ||||||||||||||||||
ABS Relay (JE4) | In the front chassis harness, right front inboard frame rail, rear of the front crossmember, on the chassis harness bracket | ||||||||||||||||||
Accelerator Pedal Position (APP) Sensor | Behind the left side of the instrument panel (I/P), right of the lower steering column, above the accelerator pedal |
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Air Brake Dryer (JE4/JTU) | On the inboard side of the right frame rail | ||||||||||||||||||
Air Brake Pressure Gage Lamp (JE4) | Behind the center of the I/P, in the gage center above the I/P switchbank, in the air brake pressure gage | ||||||||||||||||||
Air Compressor (K16) | Behind the cab at the outboard left frame rail | ||||||||||||||||||
Air Compressor Relay (K16) | Behind the cab at the outboard left frame rail, on the side of the air compressor | ||||||||||||||||||
Air Suspension Dump Switch (G40/G45/GSJ) | Center of the I/P, below the gage center, in the I/P switchbank | ||||||||||||||||||
Air Suspension Dump Valve Solenoid (G40/G45/GSJ) | On the inboard right frame rail, rear of the axle, in the air suspension dump valve | ||||||||||||||||||
Air Temperature Actuator | Behind the right side of the I/P on the HVAC module near the engine cover | ||||||||||||||||||
Automatic Transmission Fluid Temperature (TFT) Gage (UXT) | Center of the I/P, above the I/P switchbank, in the gage center | ||||||||||||||||||
Automatic Transmission Fluid Temperature (TFT) Sensor (UXT) | Right lower part of the radiator, on the transmission cooler line | ||||||||||||||||||
Automatic Transmission Input Shaft Speed (AT ISS) Sensor (Allison® LCT) | On the upper left side of the transmission, on the transmission bell housing | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission | ||||||||||||||||
Automatic Transmission Input Shaft Speed (AT ISS) Sensor (Allison® MD) | On the lower right side of the transmission, on the transmission bell housing | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission | ||||||||||||||||
Automatic Transmission Selector Lever (Allison® LCT) | In the center console, part of the automatic transmission shift lever | ||||||||||||||||||
Automatic Transmission Shift Selector (Allison® MD) | On the left side of the center console housing, at the top | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission | ||||||||||||||||
Auxiliary Air Tank Pressure Switch (K16) | Inboard of the left frame rail, on the front end of the air supply reservoir | ||||||||||||||||||
Auxiliary Battery (VNF) | On the outboard side of the right frame rail, in the battery box | -- | |||||||||||||||||
Auxiliary Power Outlet 1 | Right side center of the I/P | ||||||||||||||||||
Auxiliary Power Outlet 2 | Right side center of the I/P | ||||||||||||||||||
Backup Alarm (UZF) | On the back of the rear crossmember, on a bracket | ||||||||||||||||||
Backup Lamp - Left | At the rear of the left frame rail, part of the tail lamp assembly - left | -- | -- | ||||||||||||||||
Backup Lamp - Right | At the rear of the right frame rail, part of the tail lamp assembly - right | -- | -- | ||||||||||||||||
Backup Lamp Switch (Manual Transmission) | On the rear of the transmission | ||||||||||||||||||
Barometric Pressure (BARO) Sensor (LG5) | On the upper left side of the engine, on the bottom of the fuel rail | -- | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Battery - Center (TNR/TPL) | On the outboard side of the right frame rail, in the battery box | -- | |||||||||||||||||
Battery - Inboard (Family 3) | On the outboard side of the right frame rail, in the battery box | -- | |||||||||||||||||
Battery - Outboard (Family 3) | On the outboard side of the right frame rail, in the battery box | -- | |||||||||||||||||
Battery Isolator (VNF) | On the outboard side of the right frame rail, in the battery box | -- | |||||||||||||||||
Blower Motor - Auxiliary (C36) | Under the rear seat to the right rear of the cab | ||||||||||||||||||
Blower Motor | In the right rear of the engine compartment in back of the fuse block - underhood | ||||||||||||||||||
Blower Motor Relay - Auxiliary (C36) | Under the rear seat to the right rear of the cab mounted to the blower motor - auxiliary | ||||||||||||||||||
Blower Motor Resistor - Auxiliary (C36) | Under the rear seat to the right rear of the cab | ||||||||||||||||||
Blower Motor Resistor Assembly | In the right rear of the engine compartment in the HVAC module in back of the fuse block - underhood | ||||||||||||||||||
Brake Fluid Level Switch (JE3) | At the front of the vehicle, on the front of the brake master cylinder reservoir | ||||||||||||||||||
Brake Pressure Modulator Valve (BPMV) - LF (JE4) | On the left front of the front cross member | ||||||||||||||||||
Brake Pressure Modulator Valve (BPMV) - LR (JE4) | On the rear frame center crossmember in front of the axle | ||||||||||||||||||
Brake Pressure Modulator Valve (BPMV) - RF (JE4) | On the right side and to the front of the front crossmember | ||||||||||||||||||
Brake Pressure Modulator Valve (BPMV) - RR (JE4) | On the rear frame center crossmember in front of the axle | ||||||||||||||||||
Camshaft Position (CMP) Sensor - Bottom (LG5) | On the back end of the cylinder head | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Camshaft Position (CMP) Sensor - Top (LG5) | On the back end of the cylinder head | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Camshaft Position (CMP) Sensor (L18) | On the front of the engine, at the left side, below the water pump, on the timing chain cover | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Camshaft Position (CMP) Sensor (LG4) | On the back end of the cylinder head | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine | ||||||||||||||||
Camshaft Position (CMP) Sensor (LLY) | Mounted to front engine cover above and to the right of the crankshaft | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Chime Module (UL5/UXZ) | Behind the left side of the I/P above the accelerator pedal | ||||||||||||||||||
Cigar Lighter (DT4) | On the center console | ||||||||||||||||||
Clearance Lamp - Left | On top of the roof, on the forward left outboard side of the cab | ||||||||||||||||||
Clearance Lamp - Right | On top of the roof, on the forward left outboard side of the cab | ||||||||||||||||||
Clutch Pedal Position (CPP) Switch (Manual Transmission) | Behind the left side of the I/P, left of the lower steering column, on the clutch pedal support bracket, at the beginning of clutch pedal travel |
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Clutch Start Switch (Manual Transmission) | Behind the left side of the I/P, left of the lower steering column, on the clutch pedal support bracket, at the end of clutch pedal travel | ||||||||||||||||||
Controller Area Network (CAN) Connector (L18 w/JE4, LG4, LG5) | On the lower left side of the I/P, left of the lower steering column, by the data link connector (DLC) | ||||||||||||||||||
Coolant Level Switch | On the left side of the radiator on the lower left bottom side of the radiator surge tank | ||||||||||||||||||
Crankshaft Position (CKP) Sensor (L18) | At the rear of the engine | Engine Controls Component Views in Engine Controls - 8.1L | Engine Controls Connector End Views in Engine Controls - 8.1L | ||||||||||||||||
Crankshaft Position (CKP) Sensor (LLY) | Mounted to the front engine cover to the right of the crankshaft | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Crankshaft Position (CKP) Sensor (LG4 and Automatic Transmission) | On the top center of the flywheel housing | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine | ||||||||||||||||
Crankshaft Position (CKP) Sensor (LG4 and Manual Transmission) | On the lower left front of the flywheel housing | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine | ||||||||||||||||
Data Link Connector (DLC) | On the lower left side of the I/P, left of the lower steering column, by the controller area network (CAN) connector | ||||||||||||||||||
Data Link Resistor (LLY/L18) | On the I/P harness, behind the right side of the I/P, approximately 54 cm (21 in) past the breakout to the data link connector towards the passenger side. | ||||||||||||||||||
Data Link Resistor 1 (L18 w/JE4, LG4, LG5) | On the I/P harness, directly above the data link connector | ||||||||||||||||||
Data Link Resistor 2 (L18 w/JE4, LG4, LG5) | Left front of the vehicle, on the chassis harness just forward of the EBCM, approximately 9.5 cm (3.7 in) from the EBCM breakout, towards the forward lamp harness breakout | ||||||||||||||||||
Daytime Running Lights (DRL) Diode | Under the left side of the I/P above the data link connector (DLC) | ||||||||||||||||||
Daytime Running Lamps (DRL) Module | Left of the I/P, behind the headlamp switch | ||||||||||||||||||
Differential Lock Switch (HNB/HPL/HPN) | On the left side of the interior bulkhead, behind the I/P, on the air brake supply manifold | ||||||||||||||||||
Differential Lock Switch Lamp (HNB/HPL/HPN) | Behind the center of the I/P, below the gage center, in the I/P switchbank, part of the pneumatic switch | ||||||||||||||||||
Dome Lamp | In the interior center of the roof | ||||||||||||||||||
Dome Lamp - Rear (Crew Cab) | In the interior center rear of the roof | ||||||||||||||||||
Dome/Reading Lamp - Rear (Crew Cab/C95) | In the interior center of the roof | ||||||||||||||||||
Dome/Reading Lamp (C95) | In the interior center of the roof | ||||||||||||||||||
Door Latch Assembly - Driver (AU3) | Inside the center rear of the driver door | ||||||||||||||||||
Door Latch Assembly - LR (Crew Cab/AU3) | Inside the center rear of the left rear door | ||||||||||||||||||
Door Latch Assembly - Passenger (AU3) | Inside the center rear of the right front door | ||||||||||||||||||
Door Latch Assembly - RR (Crew Cab/AU3) | Inside the center rear of the right rear door | ||||||||||||||||||
Door Lock Relay (AU0/AU3) | Behind the center of the engine, between engine cover and the HVAC module | ||||||||||||||||||
Door Lock Switch - Driver (AU3) | On the left front door trim panel | ||||||||||||||||||
Door Lock Switch - Passenger (AU3) | On the right front trim panel | ||||||||||||||||||
Driver Information Center (DIC) | Center of the I/P, left of the I/P switchbank | ||||||||||||||||||
Electronic Brake Control Module (EBCM) | On the front left frame rail behind the wheel well | ||||||||||||||||||
Engine Control Module (ECM) (LG4) | Center of the I/P behind the HVAC controller | Engine Controls Component Views for the 7.8L engine | Engine Control Module Connector End Views for the 7.8L engine | ||||||||||||||||
Engine Control Module (ECM) (LLY/LG5) | In the right rear of the engine compartment below the fuse block - underhood |
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Engine Coolant Temperature (ECT) Sensor (L18) | In the right cylinder head between cylinder 6 and 8 | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Engine Coolant Temperature (ECT) Sensor (LG4) | On the upper left side of the engine, in the cylinder head, below the water inlet | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine | ||||||||||||||||
Engine Coolant Temperature (ECT) Sensor (LG5) | On the right side of the engine, on the rear of the coolant outlet housing | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Engine Coolant Temperature (ECT) Sensor (LLY) | Top of the front center of the intake manifold, near the oil fill tube | Engine Controls Connector End Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Engine Oil Level Switch (L18/LLY) | On the lower right side of the engine, near the center, in the oil pan |
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Engine Oil Level Switch (LG4/LG5) | On the lower left side of the engine, near the center, in the oil pan |
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Engine Oil Pressure (EOP) Sensor (L18) | On the top of the rear of the engine, next to the crankshaft position sensor | Engine Controls Component Views for the 8.1L engine | |||||||||||||||||
Engine Oil Pressure (EOP) Sensor (LG4) | On the lower right side of the engine, toward the front | Engine Controls Component Views for the 7.8L engine | |||||||||||||||||
Engine Oil Pressure (EOP) Sensor (LG5) | On the left side of the engine block, on a tee, pointing up | Engine Controls Component Views for the 7.2L (Caterpillar) engine | |||||||||||||||||
Engine Oil Pressure (EOP) Sensor (LLY) | On the lower left rear side of the engine block | Engine Controls Connector End Views for the 6.6L (LLY) engine | |||||||||||||||||
Ether Injector Control Solenoid Valve (LG5/KTE) | On the right side of the exterior bulkhead | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Evaporative Emission (EVAP) Canister Purge Solenoid Valve (L18) | In the engine compartment on the left side of the bulkhead | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Exhaust Brake Actuator Control Solenoid Valve (K40/NPE) | On the inside of the right frame rail behind the shock absorber | ||||||||||||||||||
Exhaust Brake Relay (K40/NPE w/o LLY) | In the engine compartment on the right side of the fan shroud | ||||||||||||||||||
Exhaust Brake Switch (K40) | Center of the I/P, below the gage center, in the I/P switchbank | ||||||||||||||||||
Exhaust Gas Recirculation (EGR) Valve (LG4) | On the upper left side of the engine, center, on the intake manifold | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine | ||||||||||||||||
Exhaust Gas Recirculation (EGR) Valve (LLY) | Right side of the engine above cylinder 1 | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Fuel Heater (LG4) | On the lower left side of the engine, part of the secondary fuel filter | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine | ||||||||||||||||
Fuel Heater (LLY) | On top of the fuel filter on the left side of the engine, part of the fuel/water separator | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Fuel Injector 1 (L18) | On the left front top of the engine at cylinder 1 intake port | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Fuel Injector 1 (LG4) | On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 1 | Engine Controls Component Views for the 7.8L engine | -- | ||||||||||||||||
Fuel Injector 1 (LG5) | On the upper left side of the engine at cylinder 1 | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Fuel Injector 1 (LLY) | On the right front side of the engine valve cover at cylinder 1 | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Fuel Injector 2 (L18) | On the right top of the engine at cylinder 2 intake port | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Fuel Injector 2 (LG4) | On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 2 | Engine Controls Component Views for the 7.8L engine | -- | ||||||||||||||||
Fuel Injector 2 (LG5) | On the upper left side of the engine at cylinder 2 | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Fuel Injector 2 (LLY) | On the left front side of the engine valve cover at cylinder 2 | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Fuel Injector 3 (L18) | On the left top of the engine at cylinder 3 intake port | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Fuel Injector 3 (LG4) | On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 3 | Engine Controls Component Views for the 7.8L engine | -- | ||||||||||||||||
Fuel Injector 3 (LG5) | On the upper left side of the engine at cylinder 3 | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Fuel Injector 3 (LLY) | On the right front side of the engine valve cover at cylinder 3 | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Fuel Injector 4 (L18) | On the right rear top of the engine at cylinder 4 intake port | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Fuel Injector 4 (LG4) | On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 4 | Engine Controls Component Views for the 7.8L engine | -- | ||||||||||||||||
Fuel Injector 4 (LG5) | On the upper left side of the engine at cylinder 4 | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Fuel Injector 4 (LLY) | On the left front side of the engine valve cover at cylinder 4 | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Fuel Injector 5 (L18) | On the left middle top of the engine at cylinder 5 intake port | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Fuel Injector 5 (LG4) | On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 5 | Engine Controls Component Views for the 7.8L engine | -- | ||||||||||||||||
Fuel Injector 5 (LG5) | On the upper left side of the engine at cylinder 5 | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Fuel Injector 5 (LLY) | On the right side of the engine valve cover at cylinder 5 | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Fuel Injector 6 (L18) | On the right middle top of the engine at cylinder 6 intake port | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Fuel Injector 6 (LG4) | On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 6 | Engine Controls Component Views for the 7.8L engine | -- | ||||||||||||||||
Fuel Injector 6 (LG5) | On the upper left side of the engine at cylinder 6 | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Fuel Injector 6 (LLY) | On the left rear side of the engine valve cover at cylinder 6 | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Fuel Injector 7 (L18) | On the left rear top of the engine at cylinder 8 intake port | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Fuel Injector 7 (LLY) | On the right rear side of the engine valve cover at cylinder 7 | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Fuel Injector 8 (L18) | On the right rear top of the engine at cylinder 8 intake port | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Fuel Injector 8 (LLY) | On the left rear side of the engine valve cover at cylinder 8 | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Fuel Pressure Regulator (LLY) | -- | -- | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Fuel Tank Transfer Pump - Secondary (L18/LLY) | On the inboard side of the left frame rail between the fuel tanks | Engine Controls Component Views for the 6.6L (LLY) engine or Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 6.6L (LLY) engine or Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Fuel Pump and Sender Assembly (L18) | On the outboard side of the left frame rail, in the top of the fuel tank | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Fuel Pump Relay - Secondary (Dual Tanks) | On the inboard side of the right frame rail, near SP400 | Engine Controls Component Views for the 6.6L (LLY) engine or Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 6.6L (LLY) engine or Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Fuel Rail Pressure (FRP) Sensor (LG4) | On the upper left side of the engine, on the bottom of the fuel rail | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine | ||||||||||||||||
Fuel Rail Pressure (FRP) Sensor (LLY) | On top of the engine, the right fuel rail | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Fuel Rail Temperature (FRT) Sensor (LLY) | On top of the engine, forward of the glow plug control module (GPCM), to the left of the turbocharger on the fuel rail | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Fuel Sender - Secondary (LG4/LG5/LLY) | On the outboard side of the right frame rail, in the top of the fuel tank | ||||||||||||||||||
Fuel Sender (LG4/LG5/LLY) | On the outboard side of the left frame rail, in the top of the fuel tank | ||||||||||||||||||
Fuel Temperature Sensor (LG4) | On the lower left side of the engine, at the rear, on the fuel injection pump | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine | ||||||||||||||||
Fuse Block - Auxiliary (ANC/B3D) | Top back right side of the engine compartment | -- | |||||||||||||||||
Fuse Block - I/P - 1 | Right side of the I/P under the access cover, on the left | ||||||||||||||||||
Fuse Block - I/P - 2 | Right side of the I/P under the access cover, on the right | ||||||||||||||||||
Fuse Block - Underhood (Primary) | Top back right side of the engine compartment | ||||||||||||||||||
Fuse Block - Underhood (Secondary) | Top back right side of the engine compartment | ||||||||||||||||||
Fusible Link 1 | In the engine chassis harness, from the fuse block - underhood (secondary) B+ bus to the glow plug control module (GPCM) fusible link 3 | -- | |||||||||||||||||
Fusible Link 2 | In the engine chassis harness, from the fuse block - underhood (secondary) B+ bus to the Hydromax© relay | -- | |||||||||||||||||
Fusible Link 3 | In the engine chassis harness, from the engine chassis harness to the glow plug control module (GPCM) connector C1 | -- | |||||||||||||||||
Generator (w/o K65) | Mounted to the right front of the engine | ||||||||||||||||||
Generator - Left (K65) (L18/LLY) | Mounted to the left front of the engine | ||||||||||||||||||
Generator - Right (K65) (L18/LLY) | Mounted to the right front of the engine | ||||||||||||||||||
Glow Plug 1 (LG4) | On the upper left side of the engine, in the cylinder head, at cylinder 1 | Engine Controls Component Views for the 7.8L engine | -- | ||||||||||||||||
Glow Plug 1 (LLY) | On the upper right side of the engine, in the cylinder head, at cylinder 1 | Engine Controls Component Views for the 6.6L (LLY) engine | -- | ||||||||||||||||
Glow Plug 2 (LG4) | On the upper left side of the engine, in the cylinder head, at cylinder 2 | Engine Controls Component Views for the 7.8L engine | -- | ||||||||||||||||
Glow Plug 2 (LLY) | On the upper left side of the engine, in the cylinder head, at cylinder 2 | Engine Controls Component Views for the 6.6L (LLY) engine | -- | ||||||||||||||||
Glow Plug 3 (LG4) | On the upper left side of the engine, in the cylinder head, at cylinder 3 | Engine Controls Component Views for the 7.8L engine | -- | ||||||||||||||||
Glow Plug 3 (LLY) | On the upper right side of the engine, in the cylinder head, at cylinder 3 | Engine Controls Component Views for the 6.6L (LLY) engine | -- | ||||||||||||||||
Glow Plug 4 (LG4) | On the upper left side of the engine, in the cylinder head, at cylinder 4 | Engine Controls Component Views for the 7.8L engine | -- | ||||||||||||||||
Glow Plug 4 (LLY) | On the upper left side of the engine, in the cylinder head, at cylinder 4 | Engine Controls Component Views for the 6.6L (LLY) engine | -- | ||||||||||||||||
Glow Plug 5 (LG4) | On the upper left side of the engine, in the cylinder head, at cylinder 5 | Engine Controls Component Views for the 7.8L engine | -- | ||||||||||||||||
Glow Plug 5 (LLY) | On the upper right side of the engine, in the cylinder head, at cylinder 5 | Engine Controls Component Views for the 6.6L (LLY) engine | -- | ||||||||||||||||
Glow Plug 6 (LG4) | On the upper left side of the engine, in the cylinder head, at cylinder 6 | Engine Controls Component Views for the 7.8L engine | -- | ||||||||||||||||
Glow Plug 6 (LLY) | On the upper left side of the engine, in the cylinder head, at cylinder 6 | Engine Controls Component Views for the 6.6L (LLY) engine | -- | ||||||||||||||||
Glow Plug 7 (LLY) | On the upper right side of the engine, in the cylinder head, at cylinder 7 | Engine Controls Component Views for the 6.6L (LLY) engine | -- | ||||||||||||||||
Glow Plug 8 (LLY) | On the upper left side of the engine, in the cylinder head, at cylinder 8 | Engine Controls Component Views for the 6.6L (LLY) engine | -- | ||||||||||||||||
Glow Plug Control Module (GPCM) (LLY) | Right front of the engine, mounted above the drive belt tensioner | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Glow Plug Relay (LG4) | In the engine compartment on the right side of the fan shroud | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine | ||||||||||||||||
Hazard Switch | Top of the upper steering column, part of the turn signal/multifunction switch | -- | -- | ||||||||||||||||
Headlamp - High Beam - Left (V22) | On the front left of the vehicle | ||||||||||||||||||
Headlamp - High Beam - Right (V22) | On the front right of the vehicle | ||||||||||||||||||
Headlamp - High/Low Beam - Left | Left front of the vehicle | ||||||||||||||||||
Headlamp - High/Low Beam - Right | Right front of the vehicle | ||||||||||||||||||
Headlamp Switch | Left side of the I/P, below the HVAC air outlet | ||||||||||||||||||
Heated Oxygen Sensor (HO2S) Bank 1 (L18) | On the left exhaust pipe below the exhaust manifold | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Heated Oxygen Sensor (HO2S) Bank 2 (L18) | On the right exhaust pipe below the exhaust manifold | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
High Idle Switch (UF3) | Center of the I/P, below the gage center, in the I/P switchbank |
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Horn | Behind the front bumper on the front right side of the cross member | ||||||||||||||||||
Horn Switch | Center of the upper steering column, on the front of the steering wheel | -- | |||||||||||||||||
HVAC Control Assembly | Center of the I/P, left of the I/P switchbank | ||||||||||||||||||
HVAC Control Assembly - Auxiliary (C36) | In the front center of the headliner | ||||||||||||||||||
Hydromax® Fuse (JE3) | In the engine compartment left side under the brake master cylinder taped to the harness | ||||||||||||||||||
Hydromax® Relay (JE3) | Left rear of the engine compartment behind the power steering fluid reservoir | ||||||||||||||||||
Identification (ID) Lamp - Center | On top of the roof, on the forward center of the cab | ||||||||||||||||||
Identification (ID) Lamp - Left | On top of the roof, on the forward left side of the cab, the inboard lamp | ||||||||||||||||||
Identification (ID) Lamp - Right | On top of the roof, on the forward right side of the cab, the inboard lamp | ||||||||||||||||||
Ignition Coil 1 (L18) | On the left side top of the engine, on the valve cover, at the front, at cylinder 1 | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Ignition Coil 2 (L18) | On the right side top of the engine, on the valve cover, at the front, at cylinder 2 | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Ignition Coil 3 (L18) | On the left side top of the engine, on the valve cover, at the center, at cylinder 3 | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Ignition Coil 4 (L18) | On the right side top of the engine, on the valve cover, center, at cylinder 4 | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Ignition Coil 5 (L18) | On the left side top of the engine, on the valve cover, at the center, at cylinder 5 | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Ignition Coil 6 (L18) | On the right side top of the engine, on the valve cover, center, at cylinder 6 | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Ignition Coil 7 (L18) | On the left side top of the engine, on the valve cover, at the rear, at cylinder 7 | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Ignition Coil 8 (L18) | On the right side top of the engine, on the valve cover, at the rear, at cylinder 8 | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Ignition Key Alarm Switch | Right side of the upper steering column, behind the steering wheel, in the ignition key cylinder housing | -- | |||||||||||||||||
Ignition Switch | Right side of the upper steering column, behind the steering wheel | ||||||||||||||||||
Inflatable Restraint Front End Discriminating Sensor (AJ3/AK5) | Behind the front bumper, on the front center of the first crossmember | ||||||||||||||||||
Inflatable Restraint I/P Module (AK5) | Front right side of the I/P | ||||||||||||||||||
Inflatable Restraint I/P Module Disable Switch (AK5 w/o AQR) | Center of the I/P, below the gage center, in the I/P switchbank | ||||||||||||||||||
Inflatable Restraint Resistor Module (AJ3) | Behind the left kick panel | ||||||||||||||||||
Inflatable Restraint Sensing and Diagnostic Module (SDM) (AJ3/AK5) | Under the driver seat | ||||||||||||||||||
Inflatable Restraint SIR Coil (AJ3/AK5) | Center of the upper steering column, behind the steering wheel | ||||||||||||||||||
Inflatable Restraint Steering Wheel Module (AJ3/AK5) | Center of the upper steering column, on the front of the steering wheel | ||||||||||||||||||
Instrument Panel Cluster (IPC) | In the left side of the I/P | ||||||||||||||||||
Intake Air (IA) Heater (LG5) | On the intake manifold | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Intake Air (IA) Heater Relay (LG5) | On the top right side of the cylinder head | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Intake Air (IA) Heater Relay Diode (LG5) | In the intake air (IA) heater harness, approximately 15 cm (5.9 in) from the engine chassis harness connector | -- | |||||||||||||||||
Intake Air Heater (IAH) Module (LLY) | At the rear center of the engine compartment, on the bulkhead | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Intake Air Temperature (IAT) Sensor (LG5) | On the top right side of the cylinder head | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Intake Air Temperature (IAT) Sensor 2 (LLY) | At the front center of the engine, on the intake manifold | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Inter-Axle Differential Lock Switch (Tandem Axle) | On the left side of the interior bulkhead, behind the I/P, on the air brake supply manifold | ||||||||||||||||||
Inter-Axle Differential Lock Switch Lamp (Tandem Axle) | Behind the center of the I/P, below the gage center, in the I/P switchbank, part of the pneumatic switch | ||||||||||||||||||
Internal Mode Switch (IMS) (L18/LLY w/Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission | ||||||||||||||||
Junction Block - Isolator (VNF) | In the engine compartment, at the top of the right side | -- | -- | ||||||||||||||||
Junction Block - Underhood | In the engine compartment, at the top of the right side | -- | -- | ||||||||||||||||
Junction Block - Upfitter | In the engine compartment, at the top of the right side | -- | -- | ||||||||||||||||
Knock Sensor (KS) Bank 1 (L18) | In the engine block at the left side below the exhaust manifold | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Knock Sensor (KS) Bank 2 (L18) | In the engine block at the right side below the exhaust manifold | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Low Air Pressure Switch - Primary (JE4) | Inboard of the left frame rail, on the front end of the front axle (primary) service (air supply) reservoir | ||||||||||||||||||
Low Air Pressure Switch - Secondary (JE4) | In back of the passenger foot step, on the end of the rear axle (secondary) service (air supply) reservoir | ||||||||||||||||||
Manifold Absolute Pressure (MAP) Sensor (L18) | In the front center of the intake manifold behind the water outlet | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Manifold Absolute Pressure (MAP) Sensor (LG4) | On the upper left side of the engine, on the top rear of the intake manifold air inlet elbow | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine | ||||||||||||||||
Manifold Absolute Pressure (MAP) Sensor (LG5) | On the left side of the engine | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Manifold Absolute Pressure (MAP) Sensor (LLY) | Left front of the engine on the intake manifold right below the A/C compressor | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Marker Lamp Switch | Center of the I/P, below the gage center, in the I/P switchbank | ||||||||||||||||||
Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor (L18/LG4/LLY) | In the engine compartment on the right side of the air cleaner |
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Oil Level Sensor (Allison® MD) | Internal to the automatic transmission | -- | -- | ||||||||||||||||
Outside Heated Mirror Switch (DB6/DB8) | Center of the I/P, below the gage center, in the I/P switchbank | ||||||||||||||||||
Outside Rearview Mirror - Driver (DB6/DB7/DB8) | Forward of the left door on the body |
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Outside Rearview Mirror - Passenger (DB6/DB7/DB8) | Forward of the right door on the body |
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Outside Rearview Mirror Switch (DB6) | On the driver door | ||||||||||||||||||
Overdrive Defeat Switch (Allison® LCT) | Center of the I/P, below the HVAC air outlet, left of the radio and the HVAC control assembly | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission | ||||||||||||||||
Park Brake Switch (JE3) (C4/C5) | On the left kick panel to the right rear of the park brake lever | ||||||||||||||||||
Park Brake Switch (JE3) (C6/C7/C8) | On the park brake lever under the center console | ||||||||||||||||||
Park Brake Switch (JE4) | On the left side of the exterior bulkhead, on the air brake application valve | ||||||||||||||||||
Park/Neutral Position (PNP) Switch (LG4/LG5 w/Allison® LCT) | Mounted on the left side of the transmission | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission | ||||||||||||||||
Park/Neutral Position (PNP) Switch (Allison® MD) | Internal to the automatic transmission | -- | -- | ||||||||||||||||
Park/Turn Signal Lamp - LF | On the left front of the vehicle | ||||||||||||||||||
Park/Turn Signal Lamp - RF | On the right front of the vehicle | ||||||||||||||||||
Power Brake (P/B) Booster Fluid Flow Switch (JE3) | In the engine compartment on the upper left side of the bulkhead, on top of the power brake (P/B) booster pump, behind the brake master cylinder | ||||||||||||||||||
Power Brake (P/B) Booster Pump Motor (JE3) | In the engine compartment on the upper left side of the bulkhead, behind the power steering fluid reservoir | ||||||||||||||||||
Power Take-Off (PTO) Switch | Center of the I/P, below the gage center, in the I/P switchbank | ||||||||||||||||||
Powertrain Control Module (PCM) (L18) | In the engine compartment on the left side of the bulkhead | Engine Controls Component Views for the 8.1L engine | Powertrain Control Module Connector End Views for the 8.1L engine | ||||||||||||||||
Pressure Control Solenoid (PCS) MAINMOD Valve (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission | ||||||||||||||||
Pressure Control Solenoid (PCS) Valve 1 (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission | ||||||||||||||||
Pressure Control Solenoid (PCS) Valve B (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission | ||||||||||||||||
Pressure Switch 1 (Allison® LCT) | Internal to the automatic transmission, on the pressure switch manifold (PSM) | -- | -- | ||||||||||||||||
Pressure Switch 2 (Allison® LCT) | Internal to the automatic transmission, on the pressure switch manifold (PSM) | -- | -- | ||||||||||||||||
Pressure Switch 3 (Allison® LCT) | Internal to the automatic transmission, on the pressure switch manifold (PSM) | -- | -- | ||||||||||||||||
Pressure Switch 4 (Reverse) (Allison® LCT) | Internal to the automatic transmission, on the pressure switch manifold (PSM) | -- | -- | ||||||||||||||||
Pressure Switch Manifold (PSM) (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission | ||||||||||||||||
Radio (w/o UL5) | Center of the I/P, left of the gage center and I/P switchbank | ||||||||||||||||||
Radio Antenna (w/o UL5) | On the exterior lower right A-pillar | -- | |||||||||||||||||
Rear Axle Driver Control Switch - Two Speed (HPZ/Automatic Transmission) | Center of the I/P, below the gage center, in the I/P switchbank | ||||||||||||||||||
Rear Axle Driver Control Switch - Two Speed (HPZ/Manual Transmission) | Mounted on the manual transmission shift lever | ||||||||||||||||||
Rear Axle Driver Control Switch Lamp - Two Speed (HR1/Automatic Transmission) | Behind the center of the I/P, below the gage center, in the I/P switchbank, part of the pneumatic switch | ||||||||||||||||||
Rear Axle Shift Motor - Two Speed (HPZ) | On the front of the rear axle, on the differential | ||||||||||||||||||
Rear Axle Shift Relay - Two Speed (HPZ) | On the front side of the crossmember forward of the rear axle | ||||||||||||||||||
Rear Axle Shift Switch - Two Speed (HR1/HR2) | On the frame rail forward of the rear axle | ||||||||||||||||||
Rear Window Defogger Grid (C49) | On the rear window | ||||||||||||||||||
Rear Window Defogger Switch (C49) | Center of the I/P, left of the I/P switchbank, part of the HVAC control assembly | -- | |||||||||||||||||
Remote Control Door Lock Receiver (RCDLR) (AU0) | Under the left side of the I/P above the accelerator pedal | ||||||||||||||||||
Serial Data Gateway (SDG) Module (L18 w/JE4, LG4, LG5) | Above the accelerator pedal on top of the I/P support bracket | ||||||||||||||||||
Shift Solenoid C (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission | ||||||||||||||||
Shift Solenoid D (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission | ||||||||||||||||
Shift Solenoid E (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission | ||||||||||||||||
Speaker - LF (w/o UL5) | In the left front door | ||||||||||||||||||
Speaker - LF Tweeter (ZQ2) | In the left front door | ||||||||||||||||||
Speaker - LR (w/o UL5) | In the left rear door | ||||||||||||||||||
Speaker - RF (w/o UL5) | In the right front door | ||||||||||||||||||
Speaker - RF Tweeter (ZQ2) | In the right front door | ||||||||||||||||||
Speaker - RR (w/o UL5) | In the right rear door | ||||||||||||||||||
Starter | On the lower right side of the engine | -- | |||||||||||||||||
Starter Solenoid | On the lower right side of the engine, part of the starter | -- | |||||||||||||||||
Starter Temperature Switch (KQR) | On the lower right side of the engine, part of the starter | ||||||||||||||||||
Stop Lamp Switch (JE3) | Behind the left side of the I/P, right of the lower steering column, at the top of the brake pedal support bracket | ||||||||||||||||||
Stop Lamp Switch (JE4) | On the left side of the exterior bulkhead, under the brake pedal, on the air brake application valve | ||||||||||||||||||
Suction Control Valve (SCV) (LG4) | On the lower left side of the engine, at the rear, on the fuel injection pump | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine | ||||||||||||||||
Suction Control Valve (SCV) (LG5) | On the lower left side of the engine, at the rear | Engine Controls Component Views for the 7.2L (Caterpillar) engine | Engine Controls Connector End Views for the 7.2L (Caterpillar) engine | ||||||||||||||||
Sump Fluid Temperature Sensor (Allison® LCT) | Internal to the automatic transmission, on the pressure switch manifold (PSM) | -- | -- | ||||||||||||||||
Sump Fluid Temperature Sensor (Allison® MD) | Internal to the automatic transmission | -- | -- | ||||||||||||||||
Tail Lamp Assembly - Left | At the rear of the left frame rail | ||||||||||||||||||
Tail Lamp Assembly - Right | At the rear of the right frame rail | ||||||||||||||||||
Tail/Stop/Turn Signal and License Lamp | At the rear of the left frame rail, part of the tail lamp assembly - left | -- | -- | ||||||||||||||||
Tail/Stop and Turn Signal Lamp | At the rear of the right frame rail, part of the tail lamp assembly - right | -- | -- | ||||||||||||||||
Throttle Actuator Control (TAC) Module (L18) | Top center front of the engine | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Throttle Body (L18) | Top center front of the engine | Engine Controls Component Views for the 8.1L engine | Engine Controls Connector End Views for the 8.1L engine | ||||||||||||||||
Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve (Allison® LCT) | Internal to the automatic transmission | -- | Automatic Transmission Internal Connector End Views for the Allison transmission | ||||||||||||||||
Traction Control Switch (NW9) | Center of the I/P, below the gage center, in the I/P switchbank | ||||||||||||||||||
Traction Control Valve (JE4 and NW9) | On the right side of the crossmember forward of the rear axle | ||||||||||||||||||
Tractor/Trailer Connector (RQ2 and U86 or RQ3) | On the left side of the rear crossmember | ||||||||||||||||||
Tractor/Trailer Plug (VPG) | On the left side of the rear crossmember | ||||||||||||||||||
Tractor Receptacle (JE4/RQ3) | On the left side of the rear crossmember | ||||||||||||||||||
Trailer Connector (RQ2 and U86 or RQ3) | On the left side of the rear crossmember | ||||||||||||||||||
Trailer Stop Lamp Switch (JE4 and RQ2 and U86 or JE4 and RQ3) | Below the left side of the I/P on the brake pedal | ||||||||||||||||||
Transfer Case Encoder Motor (NP1) | On the forward right side of the transfer case | Transfer Case Control Component Views for the NVG 273 transfer case | Transfer Case Control Connector End Views for the NVG 273 transfer case | ||||||||||||||||
Transfer Case Shift Control Module (NP1) | Behind the left side of the I/P behind the headlamp switch | ||||||||||||||||||
Transfer Case Shift Control Switch (NP1) | Center of the I/P, above the I/P switchbank, in the gage center | ||||||||||||||||||
Transmission Control Module (TCM) (Allison® LCT or MD) | Right rear of the engine compartment | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission | ||||||||||||||||
Turbine Shaft Speed (TSS) Sensor (Allison® LCT) | On the upper left side of the transmission, behind the transmission bell housing | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission | ||||||||||||||||
Turbine Shaft Speed (TSS) Sensor (Allison® MD) | Internal to the automatic transmission | -- | -- | ||||||||||||||||
Turbocharger Vane Position (TVP) Control Solenoid Valve (LG4) | At the right side of the engine, on the turbocharger behind the intake impeller housing | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine | ||||||||||||||||
Turbocharger Vane Position (TVP) Control Solenoid Valve (LLY) | At the right side of the engine, on the turbocharger behind the intake impeller housing | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Turbocharger Vane Position (TVP) Sensor (LG4) | At the right side of the engine, on the top center of the turbocharger | Engine Controls Component Views for the 7.8L engine | Engine Controls Connector End Views for the 7.8L engine | ||||||||||||||||
Turbocharger Vane Position (TVP) Sensor (LLY) | At the right side of the engine, on the top center of the turbocharger | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Turn Signal/Hazard Flasher Module | Left lower side of the I/P to the right of the lower steering column | ||||||||||||||||||
Turn Signal/Multifunction Switch | Center of the upper steering column, behind the steering wheel | -- | |||||||||||||||||
Vacuum Pump (Diesel) | In the engine compartment at the front right of the radiator support by the radiator outlet | ||||||||||||||||||
Vehicle Speed Sensor (VSS) (Automatic Transmission) | On the automatic transmission on the top left rear | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Related Connector End Views for the Allison transmission | ||||||||||||||||
Vehicle Speed Sensor (VSS) (Manual Transmission) | On the transmission on the top left rear |
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Water-In-Fuel Sensor (LG4/NWB) | On the outboard left frame rail, part of the fuel/water separator - primary | ||||||||||||||||||
Water-In-Fuel Sensor (LLY) | On the right side of the engine, on the bottom of the fuel/water separator - secondary | Engine Controls Component Views for the 6.6L (LLY) engine | Engine Controls Connector End Views for the 6.6L (LLY) engine | ||||||||||||||||
Wheel Speed Sensor (WSS) - LF (JE3) | Mounted in the left front wheel steering knuckle | ||||||||||||||||||
Wheel Speed Sensor (WSS) - LF (JE4) | Mounted in the left front wheel steering knuckle | ||||||||||||||||||
Wheel Speed Sensor (WSS) - LR (JE3) | On the left rear wheel | ||||||||||||||||||
Wheel Speed Sensor (WSS) - LR (JE4) | Mounted in the left rear brake backing plate | ||||||||||||||||||
Wheel Speed Sensor (WSS) - LR Middle (Tandem Axle/JE4) | Mounted in the left middle backing plate | ||||||||||||||||||
Wheel Speed Sensor (WSS) - RF (JE3) | Mounted in the right front wheel steering knuckle | ||||||||||||||||||
Wheel Speed Sensor (WSS) - RF (JE4) | Mounted in the right front wheel steering knuckle | ||||||||||||||||||
Wheel Speed Sensor (WSS) - RR (JE3) | Mounted in the right rear brake backing plate | ||||||||||||||||||
Wheel Speed Sensor (WSS) - RR (JE4) | Mounted in the right rear brake backing plate | ||||||||||||||||||
Wheel Speed Sensor (WSS) - RR Middle (Tandem Axle/JE4) | Mounted in the right middle backing plate | ||||||||||||||||||
Window Motor - Driver (A31) | In the driver door | ||||||||||||||||||
Window Motor - LR (Crew Cab w/A31) | In the left rear door | ||||||||||||||||||
Window Motor - Passenger (A31) | In the passenger door | ||||||||||||||||||
Window Motor - RR (Crew Cab w/A31) | In the right rear door | ||||||||||||||||||
Window Switch - Driver (A31) | On the driver door trim panel armrest | ||||||||||||||||||
Window Switch - LR (Crew Cab w/A31) | On the left rear door trim panel | ||||||||||||||||||
Window Switch - Passenger (A31) | On the passenger door trim panel | ||||||||||||||||||
Window Switch - RR (Crew Cab w/A31) | On the right rear door trim panel | ||||||||||||||||||
Windshield Washer Fluid Level Switch | In the left rear engine compartment mounted on the windshield washer fluid reservoir | ||||||||||||||||||
Windshield Washer Fluid Pump | In the left rear engine compartment mounted on the windshield washer fluid reservoir | ||||||||||||||||||
Windshield Washer Switch | Left side of the upper steering column, a paddle on the multifunction lever, part of the turn signal/multifunction switch | -- | -- | ||||||||||||||||
Windshield Wiper Motor | In the engine compartment behind the cowl | ||||||||||||||||||
Windshield Wiper Switch | Left side of the upper steering column, a ring on the multifunction lever, part of the turn signal/multifunction switch | -- | -- | ||||||||||||||||
C100 (30 cavities) | Chassis harness to the engine chassis harness, near the right front frame rail, behind the shock absorber | ||||||||||||||||||
C101 (30 cavities) | I/P harness to the engine chassis harness, right rear of the engine compartment below the engine control module (ECM)/powertrain control module (PCM)/transmission control module (TCM) | ||||||||||||||||||
C102 (10 cavities - Transmission Optional Connector) | Chassis harness to the upfitter harness, taped to the engine harness directly below the engine control module (ECM) | ||||||||||||||||||
C104 (6 cavities - LG4/LG5) | Engine chassis harness to the exhaust brake harness, forward of the right front shock absorber | ||||||||||||||||||
C105 (4 cavities - LG4/LG5) C105 (8 cavities - LLY/L18) | Engine chassis harness to the A/C harness, in the middle right of the engine compartment near the A/C accumulator/dehydrator | ||||||||||||||||||
C106 (6 cavities - C4/C5) | Radiator harness to the chassis harness, near right side of the radiator | ||||||||||||||||||
C106 (12 cavities - C6/C7/C8) | Chassis harness to the radiator harness, near right side of the radiator | ||||||||||||||||||
C107 (5 cavities) | Chassis harness to forward lamp harness - left, in the left front of the engine compartment on the hood at the left hood hinge | ||||||||||||||||||
C108 (5 cavities) | Chassis harness to the forward lamp harness - right, in the right front of the engine compartment on the hood at the right hood hinge | ||||||||||||||||||
C109 (40 cavities - L18/LG4) | Engine chassis harness to the I/P harness, back right of the engine under the engine control module (ECM)/powertrain control module (PCM)/transmission control module (TCM) | ||||||||||||||||||
C109 (40 cavities - LG5) | Engine chassis harness to the I/P harness, back right of the engine under the engine control module (ECM)/transmission control module (TCM) | ||||||||||||||||||
C110 (7 cavities - L18) | Engine chassis harness to the ignition coil harness - bank 1, top left of the engine on top of the intake manifold | ||||||||||||||||||
C111 (7 cavities - L18) | Engine chassis harness to the ignition coil harness - bank 2, top right of the engine on the rocker cover | ||||||||||||||||||
C111 (3 cavities - LG4) | Engine harness to the engine chassis harness, lower left of the engine | ||||||||||||||||||
C111 (3 cavities - LG5) | Engine harness to the engine chassis harness, lower left of the engine | ||||||||||||||||||
C112 (10 cavities - L18) | Engine chassis harness to the fuel injector harness, top left of engine above C110 | ||||||||||||||||||
C113 (6 cavities - LLY) | Engine jumper harness to the engine harness, left upper side of engine, under the upper coolant outlet | ||||||||||||||||||
C114 (2 cavities - VNF) | Engine chassis harness to the battery isolator harness, on the right side of the vehicle near the passenger door step | ||||||||||||||||||
C115 (1 cavity - LG5) | Engine chassis harness to the starter harness, in the engine compartment near the starter | ||||||||||||||||||
C116 (1 cavity - LG5/KQR) | Starter harness to the engine chassis harness, in the engine compartment near the starter | ||||||||||||||||||
C118 (38 cavities - LLY) | Engine harness to the engine chassis harness, on the top left center of the engine | ||||||||||||||||||
C119 (24 cavities - LLY) | Engine harness to the engine chassis harness, on the top left center of the engine | ||||||||||||||||||
C120 (3 cavities - LG5) | Intake air (IA) heater harness to the engine chassis harness | ||||||||||||||||||
C121 (10 cavities - Upfitter PTO Connector) | Chassis harness to the upfitter harness, taped to the engine harness to the right of the engine control module (ECM) directly behind the remote battery stud | ||||||||||||||||||
C122 (8 cavities - LG4) | Engine harness to the fuel injector harness connector adapter 1 to injector harness 1, on the upper left side of the cylinder head between injector 2 and 3 | ||||||||||||||||||
C123 (8 cavities - LG4) | Engine harness to the fuel injector harness connector adapter 2 to injector harness 2, on the upper left side of the cylinder head between injector 4 and 5 | ||||||||||||||||||
C124 (24 cavities - L18/LLY) | I/P harness to the engine chassis harness, at the right side of the engine compartment under the ECM/PCM | ||||||||||||||||||
C126 (40 cavities) | I/P harness to the chassis harness, at the right front frame rail behind the shock absorber | ||||||||||||||||||
C128 (2 cavities) | I/P harness to the rear chassis harness, at the right front frame rail behind the shock absorber | ||||||||||||||||||
C133 (3 cavities - LLY) | Fuel pressure regulator harness to the engine harness | ||||||||||||||||||
C134 (4 cavities - LLY) | Fuel rail pressure (FRP) sensor harness to the engine harness | ||||||||||||||||||
C135 (3 cavities - LG5) | Engine harness to the intake air (IA) heater harness | ||||||||||||||||||
C150 (4 cavities) | Windshield washer harness to the I/P harness, in the engine compartment, behind the windshield washer reservoir | ||||||||||||||||||
C175 (20 cavities - Allison® LCT) (31 cavities - Allison® MD) | Engine chassis harness to the internal transmission harness, on the right side of the transmission, near the rear | Automatic Transmission Electronic Component Views for the Allison transmission | Automatic Transmission Inline Harness Connector End View for the Allison transmission | ||||||||||||||||
C201 (48 cavities) | Steering column harness to the I/P harness, underneath the lower steering column | ||||||||||||||||||
C202 (30 cavities) | I/P switchbank harness to the I/P harness, center of the I/P behind the I/P switchbank | ||||||||||||||||||
C203 (16 cavities) | I/P harness to the body/roof harness, behind the left kick panel | ||||||||||||||||||
C204 (10 cavities - Crew Cab) | Rear body harness to the body/roof harness, behind the left kick panel | ||||||||||||||||||
C205 (1 cavity - C49) | I/P harness to the body/roof harness, behind the left kick panel | ||||||||||||||||||
C206 (4 cavities) | I/P harness to the body/roof harness, behind the left kick panel | ||||||||||||||||||
C207 (30 cavities) | I/P harness to the cross body harness, behind the right kick panel | ||||||||||||||||||
C208 (6 cavities) | Cross body harness to the stop lamp switch harness, behind the left side of the I/P above the brake pedal | ||||||||||||||||||
C209 (3 cavities) | Body/roof harness to the I/P harness, behind the left kick panel | ||||||||||||||||||
C210 (2 cavities) | I/P harness to the park brake harness, behind the left kick panel | ||||||||||||||||||
C211 (22 cavities) | Door harness - driver to the cross body harness, behind the left kick panel | ||||||||||||||||||
C212 (22 cavities) | Door harness - passenger to the cross body harness, behind the right kick panel | ||||||||||||||||||
C214 (2 cavities) | I/P harness to the auxiliary power posts, right side the I/P | ||||||||||||||||||
C215 (8 cavities) | Door harness - driver to the mirror harness, behind the left kick panel | ||||||||||||||||||
C216 (8 cavities) | Door harness - passenger to the mirror harness, behind the right kick panel | ||||||||||||||||||
C217 (4 cavities - Crew Cab w/A31) | Door harness - driver to the cross body harness | -- | -- | ||||||||||||||||
C218 (6 cavities) | Air temperature actuator jumper harness to the I/P harness, behind the right side of the I/P | ||||||||||||||||||
C275 (2 cavities) | Steering column harness to the I/P harness, center of the upper steering column, on the front of the steering wheel | ||||||||||||||||||
C300 (6 cavities - C6/C7/C8 w/M/T) | Transmission harness to the engine chassis harness, right lower side of the engine near transmission bell housing | ||||||||||||||||||
C301 (12 cavities - Crew Cab) | Body/roof harness to the rear door harness - left, in the lower left B-pillar | ||||||||||||||||||
C302 (12 cavities - Crew Cab) | Body/roof harness to the rear door harness - right, in the lower right B-pillar | ||||||||||||||||||
C303 (8 cavities - UZF) | Tail lamp harness to the chassis harness, rear frame crossmember behind the rear tires | ||||||||||||||||||
C304 (8 cavities - C6/C7/C8 w/U86 or RQ3) | I/P harness to the front trailer harness, behind the right side of the cab | ||||||||||||||||||
C305 (12 cavities - Upfitter Lighting Connector) | Chassis harness to the upfitter harness, taped to the chassis harness at the inboard right frame rail forward of splice pack SP400 (ground block) | ||||||||||||||||||
C306 (4 cavities - w/o Crew Cab) | Body/roof harness to the rear speaker harness | ||||||||||||||||||
C315 (2 cavities) | Console harness to the body/roof harness, behind the driver seat | ||||||||||||||||||
C400 (8 cavities - C6/C7 w/JE3) | Antilock brake system (ABS) harness to the chassis harness | ||||||||||||||||||
C401 (8 cavities - JE4) | Chassis harness to the ABS harness, on the inboard right rear frame rail above the axle | ||||||||||||||||||
C406 (4 cavities - HPZ, HR1 or HR2) | ABS harness to the rear axle harness, forward of the rear axle, on the inboard right rear frame rail | ||||||||||||||||||
C408 (3 cavities - K16) | Air compressor harness to air compressor assembly jumper | -- | -- | ||||||||||||||||
C409 (8 cavities - C4/C5) | Fuel tank harness to the rear chassis harness, behind the third cross member from the rear of the vehicle | ||||||||||||||||||
C409 (6 cavities - C6/C7/C8) | Fuel tank harness to the rear chassis harness, behind the third cross member from the rear of the vehicle | ||||||||||||||||||
C410 (3 cavities - K16) | Chassis harness to the air compressor harness, rear of the air compressor under the left front door step | ||||||||||||||||||
C411 (7 cavities) | Tractor/trailer recepticle, at the rear of the vehicle | -- | -- | ||||||||||||||||
C412 (8 cavities) | Tail lamp harness to the rear chassis harness | ||||||||||||||||||
C413 (7 cavities - U86) | Front trailer harness to rear trailer harness | ||||||||||||||||||
C500 (8 cavities) | Outside rearview mirror harness - driver to outside rearview mirror jumper harness - driver, behind the left door panel | ||||||||||||||||||
C600 (8 cavities) | Outside rearview mirror harness - passenger to outside rearview mirror jumper harness - passenger, behind the right door panel | ||||||||||||||||||
G100 | On the RH frame rail, forward of the RH front shock tower | -- | |||||||||||||||||
G101 | Mounted to the exterior bulkhead near the master cylinder | -- | |||||||||||||||||
G102 | In the engine compartment, in the lower right corner in front of the cowl | -- | |||||||||||||||||
G103 | Behind the right side kick panel | -- | |||||||||||||||||
G105 | Behind the left kick panel | -- | |||||||||||||||||
G106 | On the crossmember underneath the cab | -- | |||||||||||||||||
G112 | On the left frame rail below the cab | -- | |||||||||||||||||
G113 | -- | -- | -- | ||||||||||||||||
G119 | Right front of the engine block above G118 | -- | |||||||||||||||||
G120 | Right front of the engine block below G118 | -- | |||||||||||||||||
G200 | On the right frame rail near the front right side of the engine | -- | |||||||||||||||||
G202 | On the right frame rail near the middle right side of the engine | -- | |||||||||||||||||
G203 | On the right frame rail underneath the cab | -- | |||||||||||||||||
G204 | Under the driver door step on the frame | -- | |||||||||||||||||
G205 | On the right side of the frame below the engine control module (ECM)/powertrain control module (PCM) | -- | |||||||||||||||||
G400 (LLY) | Left rear frame rail before the right rear tire | -- | |||||||||||||||||
G400 (L18) | Left rear of the vehicle behind left rear tires | -- | |||||||||||||||||
S100 | (CKT 1020) In the engine harness, approximately 8 cm (3.1 in) from transmission control module (TCM) C2 breakout, toward the fuse block - underhood | -- | |||||||||||||||||
S101 (w/o L18) | (CKT 440) In the engine harness, approximately 18.5 cm (7.3 in) from the breakout for C101, C200 toward the engine control module (ECM) | -- | |||||||||||||||||
S101 (L18) | (CKT 440) In the engine harness | -- | -- | ||||||||||||||||
S102 (w/o L18) | (CKT 439) In the engine harness, approximately 13.5 cm (5.3 in) from the breakout for C101, C200 toward the engine control module (ECM) | -- | |||||||||||||||||
S102 (L18) | (CKT 439) In the engine harness | -- | -- | ||||||||||||||||
S103 (L18/LLY) | (CKT 239) In the engine harness, approximately 23.5 cm (9.3 in) from the breakout for C101, C200 toward the engine control module (ECM) | -- | |||||||||||||||||
S104 (LG4/LG5) | (CKT 1642) In the engine harness, approximately 7 cm (3 in) into the branch to the generator connector C2 | -- | |||||||||||||||||
S105 (LG5/LLY) | (CKT 1042) In the engine harness, approximately 5.5 cm (2.2 in) from the breakout for the fuse block - underhood | -- | |||||||||||||||||
S106 (w/o LG4) | (CKT 539) In the engine harness, approximately 20.5 cm (8 in) from the breakout for C118, 119 toward the fuse block - underhood | -- | |||||||||||||||||
S106 (LG4) | (CKT IC02) In the engine harness | -- | |||||||||||||||||
S107 (LLY/LG4/LG5) | (CKT 339) In the engine harness | -- | |||||||||||||||||
S108 (LG5) | (CKT 1540) In the engine harness | -- | |||||||||||||||||
S111 (LLY) | (CKT 5421) In the engine harness | -- | |||||||||||||||||
S112 (LLY) | (CKT 5423) In the engine harness | -- | |||||||||||||||||
S113 (LLY) | (CKT 5422 In the engine harness | -- | |||||||||||||||||
S114 (LLY) | (CKT 5425) In the engine harness | -- | |||||||||||||||||
S114 | (CKT 250) In the engine harness, approximately 7 cm (3 in) from the breakout for C121 toward the fuse block - underhood | -- | |||||||||||||||||
S115 | (CKT 250) In the engine harness, at the starter solenoid B+ terminal | -- | |||||||||||||||||
S116 (LG5) | (CKT 251) In the engine side of the I/P harness, approximately 10 cm (4 in) from the windshield wiper motor breakout | -- | |||||||||||||||||
S117 | (CKT 350) In the forward lamp harness - left, approximately 45 cm (18 in) from the chassis harness connector | -- | |||||||||||||||||
S118 | (CKT 351) In the engine harness, approximately 2.5 cm (1 in) from transmission optional connector toward the fuse block - underhood | -- | |||||||||||||||||
S118 (LG4) | (CKT B20, B21) In the engine harness | -- | |||||||||||||||||
S119 (LG4) | (CKT B33, B34) In the engine harness | -- | |||||||||||||||||
S120 | (CKT 488) In the engine harness, approximately 7 cm (3 in) from the breakout for C121 toward the fuse block - underhood | -- | |||||||||||||||||
S121 (w/A/T LCT) | (CKT 2522) In the engine harness, approximately 8.5 cm (3.3 in) from the breakout for C101, C200 toward the engine control module (ECM) | -- | |||||||||||||||||
S124 | In the engine harness, approximately 27 cm (11 in) from C110 | -- | |||||||||||||||||
S130 w/A/T MD | (CKT 407) In the engine harness | -- | -- | ||||||||||||||||
S133 (L18 w/K65) | (CKT 25) In the engine harness, approximately 4 cm (2 in) from the exhaust gas recirculation (EGR) valve | -- | |||||||||||||||||
S142 (HPZ) | (CKT 1467) In the engine harness, approximately 12 cm (5 in) from the breakout for C121, toward the powertrain control module (PCM) | -- | |||||||||||||||||
S143 | (CKT 350) In the forward lamp harness - right, approximately 45 cm (18 in) from the chassis harness connector | -- | |||||||||||||||||
S144 (V22) | (CKT 11) In the forward lamp harness - right, approximately 45 cm (18 in) from the chassis harness connector | -- | |||||||||||||||||
S145 (V22) | (CKT 11) In the forward lamp harness - left, approximately 45 cm (18 in) from the chassis harness connector | -- | |||||||||||||||||
S145 (LG5) | (CKT 817) In the engine harness, approximately 27 cm (11 in) from C110 | -- | |||||||||||||||||
S147 (C60) | (CKT 59) In the A/C harness, approximately 16.5 cm (6.5 in) from the A/C compressor clutch breakout, toward the A/C compressor clutch relay | -- | |||||||||||||||||
S148 (C60) | (CKT 250) In the A/C harness, approximately 24.5 cm (9.6 in) from the A/C compressor clutch breakout, toward the A/C compressor clutch relay | -- | |||||||||||||||||
S149 (LG5) | (CKT 1922) In the engine harness | -- | -- | ||||||||||||||||
S150 (LG5) | (CKT 1921) In the engine harness, approximately 2 cm (1 in) from connector C105 to the park brake harness | -- | |||||||||||||||||
S151 | (CKT 2361) In the engine harness, approximately 10 cm (3.9 in) from the breakout for C102 toward the fuse block - underhood | -- | |||||||||||||||||
S152 | (CKT 2362) In the engine harness, approximately 11 cm (4.3 in) from the breakout for C102 toward the fuse block - underhood | -- | |||||||||||||||||
S161 (LG5) | (CKT 1121) In the I/P harness, approximately 36 cm (14 in) from C109 | -- | |||||||||||||||||
S162 (LG5) | (CKT 1120) In the I/P harness, approximately at the generator C1 terminal | -- | |||||||||||||||||
S165 (L18) | (CKT 250) In the engine harness | -- | |||||||||||||||||
S166 (L18) | (CKT 250) In the engine harness | -- | |||||||||||||||||
S166 (LG4) | (CKT 24) In the engine harness | -- | -- | ||||||||||||||||
S166 (LLY) | (CKT 508) In the engine harness, approximately 24 cm (9.5 in) from C124 | -- | |||||||||||||||||
S167 (LLY) | (CKT 2) In the engine chassis harness, approximately 8 cm (3.1 in) from the generator breakout | -- | |||||||||||||||||
S169 (L18) | (CKT 351) In the engine chassis harness | -- | |||||||||||||||||
S175 (L18/LLY w/Allison® LCT) | (CKT 150) In the internal transmission harness | -- | |||||||||||||||||
S175 (LG4/LG5 w/Allison® LCT) | (CKT 2528) In the internal transmission harness | -- | -- | ||||||||||||||||
S176 (Allison® LCT) | (CKT 323) In the internal transmission harness | -- | |||||||||||||||||
S177 (L18/LLY w/Allison® LCT) | (CKT 407) In the internal transmission harness | -- | |||||||||||||||||
S177 (LG4/LG5 w/Allison® LCT) | (CKT 2762, 2471) In the internal transmission harness | -- | -- | ||||||||||||||||
S184 (L18) | (CKT 539) In the engine chassis harness | -- | |||||||||||||||||
S184 (LG4) | (CKT B12) In the engine harness | -- | -- | ||||||||||||||||
S185 (L18) | (CKT 539) In the engine chassis harness | -- | |||||||||||||||||
S186 (L18) | (CKT 339) In the engine chassis harness | -- | |||||||||||||||||
S187 (L18) | (CKT 339) In the engine chassis harness | -- | |||||||||||||||||
S189 (L18) | (CKT 2129) In the engine chassis harness | -- | |||||||||||||||||
S190 (C60) | (CKT 459) In the A/C harness | -- | |||||||||||||||||
S192 (L18) | (CKT 2130) In the engine chassis harness | -- | |||||||||||||||||
S193 (LG4) | (CKT B16) In the engine harness | -- | -- | ||||||||||||||||
S198 (LG4) | (CKT B15, ZZ01) In the engine harness | -- | -- | ||||||||||||||||
S197 (LG5) | (CKT L985) In the engine harness | -- | -- | ||||||||||||||||
S198 (LG5) | (CKT L984) In the engine harness | -- | -- | ||||||||||||||||
S199 (LG5) | (CKT L983) In the engine harness | -- | -- | ||||||||||||||||
S200 | (CKT 141) In the I/P harness, approximately 16.5 cm (6.5 in) from the breakout for the engine control module (ECM) toward the fuse block - I/P | -- | |||||||||||||||||
S201 | (CKT 300) In the I/P harness, approximately 8 cm (3 in) from the turn signal/hazard flasher module breakout | -- | |||||||||||||||||
S202 | (CKT 1142) In the I/P harness, approximately 21.5 cm (8.5 in) from the breakout for the engine control module (ECM) toward the fuse block - I/P | -- | |||||||||||||||||
S203 | (CKT 142) In the I/P harness, approximately 12 cm (4.75 in) from the breakout for the I/P gage center toward the fuse block - I/P | -- | |||||||||||||||||
S204 | (CKT 242) In the I/P harness, approximately 6.5 cm (2.5 in) from the breakout for C201 between the breakout and C201 | -- | |||||||||||||||||
S205 | (CKT 1140) In the I/P harness, approximately 7.5 cm (7 in) from the breakout for the I/P gage center toward the fuse block - I/P | -- | |||||||||||||||||
S206 | (CKT 2609) In the I/P harness, approximately 32 cm (12.5 in) from the breakout to the air temperature actuator jumper harness connector | -- | |||||||||||||||||
S207 | (CKT 618) In the I/P harness, approximately 16 cm (6.3 in) from the breakout to the air temperature actuator jumper harness connector | -- | |||||||||||||||||
S208 | (CKT 2509) In the right door harness, approximately 5 cm (2 in) from the breakout for the window motor-passenger between the breakout and the connector | -- | |||||||||||||||||
S209 | (CKT 619) In the I/P harness, approximately 4 cm (2 in) from the data link connector breakout toward C200 | -- | |||||||||||||||||
S210 | (CKT 641) In the I/P harness, approximately 5.5 cm (2 in) from the breakout for HVAC control assembly toward the fuse block - I/P | -- | |||||||||||||||||
S211 | (CKT 39) In the I/P harness, approximately 4 cm (1.5 in) from the breakout for HVAC control assembly toward the fuse block - I/P | -- | |||||||||||||||||
S212 | (CKT 441) In the I/P harness, approximately 11.5 cm (4.5 in) from the breakout for the engine control module (ECM) toward the fuse block - I/P | -- | |||||||||||||||||
S213 | (CKT 139) In the I/P harness, approximately 6.5 cm (2.5 in) from the breakout for HVAC control assembly toward the fuse block - I/P | -- | |||||||||||||||||
S214 | (CKT 806) In the I/P harness, approximately 5 cm (2 in) from the breakout to the air temperature actuator jumper harness connector toward the fuse block - I/P | -- | |||||||||||||||||
S215 | (CKT 8) In the I/P harness, approximately 6.5 cm (2.5 in) from the breakout for HVAC control assembly toward the fuse block - I/P | -- | |||||||||||||||||
S216 | (CKT 1020) In the I/P harness, approximately 2.5 cm (1 in) from the breakout for HVAC control assembly toward the fuse block - I/P | -- | |||||||||||||||||
S217 | (CKT 43) In the I/P harness, approximately 7.5 cm (3 in) from the breakout for IPC between the breakout and the IPC connector | -- | |||||||||||||||||
S218 | (CKT 540) In the I/P harness, approximately 6.5 cm (2.6 in) from the breakout for C207 between the breakout and C207 | -- | |||||||||||||||||
S219 | (CKT 840) In the I/P harness, approximately 1.5 cm (0.5 in) from the breakout for HVAC control assembly toward the fuse block - I/P | -- | |||||||||||||||||
S220 (JE3) | (CKT 439) In the I/P harness, approximately 4 cm (1.6 in) from the breakout for C202 toward the fuse block - I/P | -- | |||||||||||||||||
S221 | (CKT 1320) In the I/P harness, approximately 26.5 cm (10.5 in) from the breakout for the engine control module (ECM) toward the fuse block - I/P | -- | |||||||||||||||||
S222 | (CKT 541) In the I/P harness, approximately 6.5 cm (2.5 in) from the breakout for the I/P gage center toward the fuse block - I/P | -- | |||||||||||||||||
S223 (C6/C7/C8) | (CKT 239) In the I/P harness, approximately 31.5 cm (12.5 in) from the breakout for the engine control module (ECM) toward the fuse block - I/P | -- | |||||||||||||||||
S230 | (CKT 1696) In the I/P harness, approximately 10 cm (4 in) from the breakout for C201 between the breakout and C201 | -- | |||||||||||||||||
S232 | (CKT 1451) In the I/P harness, approximately 38.5 cm (15.1 in) from the breakout to the air temperature actuator jumper harness connector | -- | |||||||||||||||||
S233 (LG4) | (CKT 331) In the engine harness | -- | |||||||||||||||||
S235 | (CKT 750) In the I/P switchbank harness, approximately 25 cm (9.6 in) from the I/P harness connector | -- | |||||||||||||||||
S236 | (CKT 750) In the I/P switchbank harness, approximately 6 cm (2.3 in) from the I/P harness connector | -- | |||||||||||||||||
S237 | (CKT 750) In the I/P switchbank harness | -- | |||||||||||||||||
S238 | (CKT 750) In the I/P harness | -- | -- | ||||||||||||||||
S239 | (CKT 750) In the I/P harness | -- | -- | ||||||||||||||||
S240 | (CKT 750) In the I/P harness, approximately 2.5 cm (1 in) from the breakout for the headlamp switch toward the fuse block - I/P | -- | |||||||||||||||||
S241 | (CKT 550) In the cross body harness, approximately 18 cm (7 in) from the IPC connector breakout toward the convenience center | -- | |||||||||||||||||
S243 | (CKT 450) In the I/P harness, approximately 6.5 cm (2.5 in) from the breakout for C202 toward the fuse block - I/P | -- | |||||||||||||||||
S244 | (CKT 450) In the I/P harness, approximately 12 cm (4.7 in) from the breakout to the air temperature actuator jumper harness connector | -- | |||||||||||||||||
S245 | (CKT 450) In the I/P harness, approximately 9 cm (3.5 in) from the breakout for C202 toward the fuse block - I/P | -- | |||||||||||||||||
S247 (w/A/T LCT) | (CKT 2678) In the I/P harness, approximately 8 cm (3 in) from the breakout for the IPC, toward the breakout for the convenience center | -- | |||||||||||||||||
S248 | (CKT 553) In the I/P harness, approximately 4 cm (1.6 in) from the breakout for serial data gateway toward the fuse block - I/P | -- | |||||||||||||||||
S249 | (CKT 1382) In the I/P harness, approximately 6 cm (2.5 in) from the breakout for C201 toward the cowl | -- | |||||||||||||||||
S250 | (CKT 267) In the I/P harness, approximately 5 cm (2 in) from the breakout for the IPC, toward the breakout for the convenience center | -- | |||||||||||||||||
S251 | (CKT 267) In the I/P switchbank approximately 10 cm (4 in) from the outside rearview mirror switch connector | -- | |||||||||||||||||
S252 | (CKT 15) In the I/P harness, approximately 5 cm (2 in) from the breakout for the data link connector (DLC) toward the fuse block - I/P | -- | |||||||||||||||||
S253 | (CKT 14) In the I/P harness, approximately 7.5 cm (3 in) from the breakout for the data link connector (DLC) toward the fuse block - I/P | -- | |||||||||||||||||
S254 (A31) | (CKT 343) In the cross body harness, approximately 17 cm (7 in) from the breakout for G412 | -- | |||||||||||||||||
S255 | (CKT 640) In the I/P harness, approximately 4 cm (1.6 in) from the breakout for C202 toward the fuse block - I/P | -- | |||||||||||||||||
S256 (C6/C7/C8) | (CKT 318) In the I/P harness, approximately 8 cm (3 in) from the upfitter accessory feed connector breakout, toward the IPC connector breakout | -- | |||||||||||||||||
S257 (C6/C7/C8) | (CKT 319) In the I/P harness, approximately 6.5 cm (2.5 in) from the breakout for C201 toward the fuse block - I/P | -- | |||||||||||||||||
S258 | (CKT 1467) In the I/P switchbank harness, approximately 4 cm (2 in) from the breakout for the convenience center toward the breakout for C210 | -- | |||||||||||||||||
S259 | (CKT 21) In the I/P harness, approximately 2.5 cm (1 in) from the breakout for chime module toward the fuse block - I/P | -- | |||||||||||||||||
S260 | (CKT 28) In the I/P harness, approximately 52 cm (20 in) from C207 | -- | |||||||||||||||||
S261 | (CKT 9) In the I/P harness, approximately 5 cm (2 in) from the breakout for C201 toward the cowl | -- | |||||||||||||||||
S262 (JE3) | (CKT 17) In the I/P harness, approximately 20 cm (7.9 in) from the breakout to the air temperature actuator jumper harness connector | -- | |||||||||||||||||
S263 | (CKT 10) In the I/P harness, approximately 6 cm (2 in) into the multifunction alarm module breakout from the main harness | -- | |||||||||||||||||
S264 | (CKT 592) In the I/P harness, approximately 21 cm (8.25 in) from the breakout for IPC toward the fuse block - I/P | -- | |||||||||||||||||
S265 | (CKT 11) In the I/P harness, approximately 20 cm (8 in) from the breakout for the I/P gage center toward the fuse block - I/P | -- | |||||||||||||||||
S267 | (CKT 2509) In the cross body harness, approximately 4 cm (2 in) from the turn signal/multifunction switch C1 breakout toward the turn signal/hazard flasher module breakout | -- | |||||||||||||||||
S268 | (CKT 140) In the I/P harness, approximately 28 cm (11 in) from the breakout to the air temperature actuator jumper harness connector | -- | |||||||||||||||||
S269 | (CKT 420) In the I/P harness, approximately 11 cm (4.3 in) from the breakout for C207 between the breakout and C207 | -- | |||||||||||||||||
S270 | (CKT 1134) In the I/P harness, approximately 29.5 cm (11.5 in) from the breakout for C203 toward the fuse block - I/P | -- | |||||||||||||||||
S272 | (CKT 1139) In the I/P harness | -- | |||||||||||||||||
S273 | (CKT 1922) In the I/P harness, approximately 15 cm (6 in) from the breakout to the air temperature actuator jumper harness connector toward the fuse block - I/P | -- | |||||||||||||||||
S274 | (CKT 1921) In the I/P harness, approximately 10 cm (4 in) from the breakout to the air temperature actuator jumper harness connector toward the fuse block - I/P | -- | |||||||||||||||||
S277 (L18 w/JE4, LG4, LG5) | (CKT 2362) In the I/P harness, approximately 6 cm (2 in) from the turn signal/hazard flasher module | -- | |||||||||||||||||
S278 (L18 w/JE4, LG4, LG5) | (CKT 2361) In the I/P harness, approximately 6 cm (2 in) from the turn signal/hazard flasher module | -- | |||||||||||||||||
S279 (L18 w/JE4, LG4, LG5) | (CKT 2362) In the I/P harness, approximately 16.5 cm (6.5 in) from the breakout for the I/P gage center toward the fuse block - I/P | -- | |||||||||||||||||
S280 (L18 w/JE4, LG4, LG5) | (CKT 2361) In the I/P harness, approximately 17.5 cm (7 in) from the breakout for the I/P gage center toward the fuse block - I/P | -- | |||||||||||||||||
S284 (L18, LG4, LLY) | (CKT 488) In the I/P harness, approximately 24 cm (9.5 in) from the breakout to the air temperature actuator jumper harness connector | -- | |||||||||||||||||
S290 (L18/LLY) | (CKT 6105) | -- | -- | ||||||||||||||||
S291 (L18/LLY) | (CKT 6106) | -- | -- | ||||||||||||||||
S300 | (CKT 540) In the cross body harness, approximately 5 cm (2 in) to the rear of the ground block breakout | -- | |||||||||||||||||
S301 (w/o Crew Cab/UZA) | (CKT 750) In the body/roof harness, approximately 13 cm (5 in) before the console harness connector and dome/marker lamps breakouts | -- | |||||||||||||||||
S301 (Crew Cab w/o UZA) | (CKT 750) In the body/roof harness, approximately 7 cm (3 in) before the breakouts to the marker and dome lamps | -- | |||||||||||||||||
S302 (Crew Cab) | (CKT 550) In the body/roof harness, approximately 8 cm (3 in) before the left door harness connector breakout | -- | |||||||||||||||||
S303 (LG4/LG5) | (CKT 1962) In the exhaust brake harness, approximately 11 cm (4 in) from the engine control module (ECM) connector | -- | |||||||||||||||||
S304 | (CKT 267) In the cross body harness, approximately 5 cm (2 in) to the rear of the ground block breakout | -- | |||||||||||||||||
S305 | (CKT 195) In the cross body harness, approximately 10 cm (4 in) to the rear of the ground block breakout | -- | |||||||||||||||||
S306 | (CKT 194) In the cross body harness, approximately 10 cm (4 in) to the rear of the ground block breakout | -- | |||||||||||||||||
S307 | (CKT 294) In the cross body harness, approximately 10 cm (4 in) from the left fuel pump and sender assembly breakout | -- | |||||||||||||||||
S308 (Crew Cab) | (CKT 294) In the body/roof harness, approximately 62 cm (24 in) from the breakout for C203 | -- | |||||||||||||||||
S309 | (CKT 295) In the cross body harness | -- | |||||||||||||||||
S310 (Crew Cab) | (CKT 295) In the body/roof harness, approximately 52 cm (20 in) from the breakout for C203 | -- | |||||||||||||||||
S312 (Crew Cab) | (CKT 343) In the body/roof harness, approximately 42 cm (16 in) from the breakout for C203 | -- | |||||||||||||||||
S313 (UZF) | (CKT 24) In the backup alarm harness, approximately 30 cm (12 in) from the breakout for C412 toward the heated moisture ejector valve | -- | |||||||||||||||||
S314 (UZF) | (CKT 350) In the backup alarm harness, approximately 11 cm (4 in) from the powertrain control module (PCM) connector | -- | |||||||||||||||||
S315 (C4/C5 w/U86) | (CKT 318) In the rear chassis harness, approximately resistor splice, 11 cm (4 in) from the powertrain control module (PCM) connector | -- | |||||||||||||||||
S316 (C4/C5 w/U86) | (CKT 319) In the rear chassis harness, approximately 5 cm (2 in) from the left fuel pump and sender assembly breakout | -- | |||||||||||||||||
S317 | (CKT 21) In the cross body harness, approximately 11 cm (4 in) from the transmission control module connector | -- | |||||||||||||||||
S319 | (CKT 24) In the rear chassis harness, approximately 6.5 cm (2.5 in) from the breakout for the ground block toward the electronic brake control module (EBCM) | -- | |||||||||||||||||
S320 | (CKT 11) In the rear chassis harness, approximately 10.5 cm (4 in) from the breakout for C108 toward the electronic brake control module (EBCM) | -- | |||||||||||||||||
S321 | (CKT 12) In the rear chassis harness, approximately 6.5 cm (2.5 in) from the breakout for C108 toward the electronic brake control module (EBCM) | -- | |||||||||||||||||
S322 | (CKT 328) In the body/roof harness, approximately 23 cm (9 in) before the left door harness connector breakout | -- | |||||||||||||||||
S323 (Crew Cab) | (CKT 328) In the body harness, approximately 3 cm (1 in) from the right door lock actuator | -- | |||||||||||||||||
S324 (Crew Cab) | (CKT 40) In the body/roof harness, approximately 22 cm (9 in) from the breakout for C203 | -- | |||||||||||||||||
S325 (Crew Cab) | (CKT 156) In the body/roof harness, approximately 18 cm (7 in) before the left door harness connector breakout | -- | |||||||||||||||||
S326 (Crew Cab) | (CKT 2509) In the body/roof harness, approximately 10 cm (4 in) from the console harness connector breakout, toward the left door harness connector breakout | -- | |||||||||||||||||
S327 | (CKT 2661) In the rear chassis harness, approximately 22 cm (9 in) from the IPC breakout toward the data link connector breakout | -- | |||||||||||||||||
S328 | (CKT 2662) In the rear chassis harness, approximately 4 cm (2 in) from the breakout for the I/P connector C202 toward the right door lock switch connector C218 | -- | |||||||||||||||||
S329 | (CKT 746) In the cross body harness, approximately 44 cm (17 in) from the radio connector breakout toward the I/P fuse block breakout | -- | |||||||||||||||||
S330 | (CKT 1139) In the body harness, approximately 16 cm (6 in) or 30 cm (12 in) from the A/T shift lever connector | -- | |||||||||||||||||
S331 (L18 w/JE4, LG4, LG5) | (CKT 2362) In the rear chassis harness | -- | -- | ||||||||||||||||
S332 (L18 w/JE4, LG4, LG5) | (CKT 2361) In the rear chassis harness | -- | |||||||||||||||||
S333 | (CKT 451) In the engine harness, approximately 11 cm (4 in) from the transmission control module (TCM) connector | -- | |||||||||||||||||
S334 | (CKT 451) In the I/P harness, approximately 3 cm (1 in) from the window actuator motor breakout toward the pass through | -- | |||||||||||||||||
S400 | (CKT 151) In the right power window harness, approximately 3 cm (1 in) from the driver window switch | -- | |||||||||||||||||
S401 | (CKT 350) In the ABS harness | -- | |||||||||||||||||
S402 | (CKT 350) In the rear chassis harness, approximately 5 cm (2 in) before the tail lamps breakout | -- | |||||||||||||||||
S403 | (CKT 151) In the rear chassis harness, approximately 4 cm (1.5 in) from the breakout for C117 the ground block | -- | |||||||||||||||||
S404 | (CKT 350) In the rear chassis harness, approximately 8 cm (3 in) from the breakout for fuel injector 5 | -- | |||||||||||||||||
S406 | (CKT 351) In the rear chassis harness, approximately 4 cm (2 in) from the underhood fuse block breakout, toward the windshield wiper motor breakout | -- | |||||||||||||||||
S407 (L18 w/Dual Tanks) | (CKT 120) In the fuel tank harness | -- | |||||||||||||||||
S408 (C4/C5) | (CKT 470) In the fuel tank harness 16 cm (6 in) from the breakout for C123 | -- | |||||||||||||||||
S409 | (CKT 642) In the rear chassis harness, approximately 6.5 cm (2.5 in) from the breakout for RR WSS toward the trailer connector | -- | |||||||||||||||||
S410 | (CKT 24) In the tail lamp harness, approximately 7 cm (3 in) from the coolant level switch breakout, toward the engine coolant temperature switch | -- | |||||||||||||||||
S411 (JE3) | (CKT 1928) In the rear chassis harness | -- | |||||||||||||||||
S412 | (CKT 241) In the I/P harness, approximately 18 cm (7 in) from the breakout for the I/P gage center toward the fuse block - I/P | -- | |||||||||||||||||
S413 | (CKT 1470) In the engine harness, approximately 8 cm (3 in) from the breakout for C123 | -- | |||||||||||||||||
S415 (C6/C7/C8) | (CKT 470) In the fuel tank harness, approximately 4 cm (2 in) from the breakout for the I/P connector C202 toward the left door lock switch connector | -- | |||||||||||||||||
S416 | (CKT 151) In the rear chassis harness | -- | -- | ||||||||||||||||
S417 | (CKT 151) In the rear chassis harness | -- | -- | ||||||||||||||||
S419 (L18/LG4/LG5) | (CKT 350) In the fual tank harness | -- | -- | ||||||||||||||||
S421 (K16) | (CKT 350) In the air compressor assembly jumper harness | -- | |||||||||||||||||
S430 | (CKT 2609) In the chassis harness on the right hand frame rail under the cab, approximately 10.5 cm (4.1 in) before the breakout to G203 | -- | |||||||||||||||||
S431 | (CKT 2509) In the chassis harness on the right hand frame rail under the cab, approximately 14.5 cm (5.7 in) before the breakout to G203 | -- | |||||||||||||||||
S500 | (CKT 540) In the driver door harness, approximately 4.5 cm (1.75 in) from the breakout for the outside rearview mirror switch toward the switch | -- | |||||||||||||||||
S501 | (CKT 550) In the driver door harness, approximately 9 cm (4 in) from the park brake pressure sensor connector | -- | |||||||||||||||||
S502 (ZQ2) | (CKT 201) In the driver door harness, approximately 3 cm (1 in) from the window actuator motor breakout toward the pass through | -- | |||||||||||||||||
S503 (ZQ2) | (CKT 118) In the driver door harness, approximately 30 cm (11.75 in) from the breakout for the tweeter connector toward the cross body harness | -- | |||||||||||||||||
S505 | (CKT 343) In the driver door harness, approximately 4.5 cm (1.75 in) from the breakout for the OSRVM connector toward the cross body harness | -- | |||||||||||||||||
S600 | (CKT 550) In the rear passenger door harness, approximately 6.5 cm (2.5 in) from the breakout for the rear window switch toward C700 | -- | |||||||||||||||||
S602 (ZQ2) | (CKT 200) In the front passenger door harness, approximately 30 cm (12 in) from the breakout for the speaker - RF door toward C500 | -- | |||||||||||||||||
S603 (ZQ2) | (CKT 117) In the front passenger door harness, approximately 20 cm (8 in) from the breakout for the speaker - RF door toward C500 | -- | |||||||||||||||||
S700 (A31/Crew Cab) | (CKT 550) In the left rear door harness, approximately 11 cm (1 in) from the window switch | -- | |||||||||||||||||
S800 (A31/Crew Cab) | (CKT 550) In the right rear door harness | -- | -- | ||||||||||||||||
SP203 (12 cavities) | Behind the left side of the I/P below the headlamp switch | ||||||||||||||||||
SP400 (Ground Block) (6 cavities) | On the inboard side of the right frame rail behind the cab, part of the negative battery cable |
