Name  | Location  | Locator View  | Connector End View  | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A Solenoid (C1 Clutch) (Allison® MD)  | Internal to the automatic transmission  | --  | --  | ||||||||||||||||
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  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
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  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
A/C Compressor Clutch Relay (C60)  | In the engine compartment mounted to the front right of the radiator shroud  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
A/C High Pressure Switch (C60)  | Mounted on the back side of the A/C compressor  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
A/C Low Pressure Switch (C60)  | In the engine compartment mounted to the A/C accumulator/dehydrator  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
ABS Relay (JE4)  | In the front chassis harness, right front inboard frame rail, rear of the front crossmember, on the chassis harness bracket  | Air Antilock Brake System Component Views in Air Antilock Brake System  | Air Antilock Brake System Connector End Views in Air Antilock Brake System  | ||||||||||||||||
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 System Component Views in Air Brakes  | Air Brake System Connector End Views in Air Brakes  | ||||||||||||||||
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  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Air Compressor (K16)  | Behind the cab at the outboard left frame rail  | Auxiliary Air Compressor Component Views in Air Compressor - Auxiliary  | Auxiliary Air Compressor Connector End Views in Air Compressor - Auxiliary  | ||||||||||||||||
Air Compressor Relay (K16)  | Behind the cab at the outboard left frame rail, on the side of the air compressor  | Auxiliary Air Compressor Component Views in Air Compressor - Auxiliary  | Auxiliary Air Compressor Connector End Views in Air Compressor - Auxiliary  | ||||||||||||||||
Air Suspension Dump Switch (G40/G45/GSJ)  | Center of the I/P, below the gage center, in the I/P switchbank  | Suspension Controls Component Views in Air Suspension  | Suspension Controls Connector End Views in Air Suspension  | ||||||||||||||||
Air Suspension Dump Valve Solenoid (G40/G45/GSJ)  | On the inboard right frame rail, rear of the axle, in the air suspension dump valve  | Suspension Controls Component Views in Air Suspension  | Suspension Controls Connector End Views in Air Suspension  | ||||||||||||||||
Air Temperature Actuator (C60)  | Behind the right side of the I/P on the HVAC module near the engine cover  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
Antenna (w/o UL5)  | On the exterior lower right A-pillar  | Entertainment Component Views in Entertainment  | --  | ||||||||||||||||
Automatic Transmission Fluid Temperature (TFT) Gage (Allison® UXT)  | Center of the I/P, above the I/P switchbank, in the gage center  | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gages, and Console  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Automatic Transmission Fluid Temperature (TFT) Gage Lamp (Allison® UXT)  | Behind the center of the I/P, above the I/P switchbank, in the gage center, part of the gage assembly  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Automatic Transmission Fluid Temperature (TFT) Sensor (Allison® LCT/UXT)  | Right lower part of the radiator, on the transmission cooler line  | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gages, and Console  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
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 in Automatic Transmission - Allison  | Automatic Transmission Related Connector End Views in Automatic Transmission - Allison  | ||||||||||||||||
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 in Automatic Transmission - Allison  | Automatic Transmission Related Connector End Views in Automatic Transmission - Allison  | ||||||||||||||||
Automatic Transmission Shift Lever Position Indicator (Allison® LCT)  | In the center console, part of the automatic transmission shift lever  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Automatic Transmission Shift Selector (Allison® MD)  | On the left side of the center console housing, at the top  | Automatic Transmission Electronic Component Views in Automatic Transmission - Allison  | Automatic Transmission Related Connector End Views in Automatic Transmission - Allison  | ||||||||||||||||
Auxiliary Power Outlet 1  | Right side center of the I/P  | Power Outlet Component Views in Power Outlets  | Power Outlet Connector End Views in Power Outlets  | ||||||||||||||||
Auxiliary Power Outlet 2  | Right side center of the I/P  | Power Outlet Component Views in Power Outlets  | Power Outlet Connector End Views in Power Outlets  | ||||||||||||||||
Auxiliary Power Post (+/-)  | Right side the I/P  | 
 in Power Outlets  | --  | ||||||||||||||||
B Solenoid (C2 Clutch) (Allison® MD)  | Internal to the automatic transmission  | --  | --  | ||||||||||||||||
Backup Alarm (UZF)  | On the back of the rear crossmember, on a bracket  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
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 (Allison® LCT)  | On the lower left side of the transmission, part of the park/neutral position (PNP) switch  | --  | --  | ||||||||||||||||
Backup Lamp Switch (Allison® MD)  | Internal to the automatic transmission  | --  | --  | ||||||||||||||||
Backup Lamp Switch (Manual Transmission)  | On the rear of the transmission  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Barometric Pressure (BARO) Sensor (LLY)  | Left side of engine near fuel injectors 2 and 4  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Battery - Auxiliary (VNF)  | On the outboard side of the right frame rail, in the battery box  | --  | |||||||||||||||||
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 - Primary (Family 2)  | In the engine compartment, right side  | --  | |||||||||||||||||
Battery - Secondary (Family 2)  | In the engine compartment, left side  | --  | |||||||||||||||||
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  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
Blower Motor (C40/C60)  | In the right rear of the engine compartment in back of the fuse block - underhood  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
Blower Motor Relay - Auxiliary (C36)  | Under the rear seat to the right rear of the cab mounted to the blower motor - auxiliary  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
Blower Motor Resistor - Auxiliary (C36)  | Under the rear seat to the right rear of the cab  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
Blower Motor Resistor Assembly (C40/C60)  | In the right rear of the engine compartment in the HVAC module in back of the fuse block-underhood  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
Brake Fluid Level Switch (JE3)  | At the front of the vehicle, on the front of the brake master cylinder reservoir  | Hydraulic Brake Component Views in Hydraulic Brakes  | Hydraulic Brake Connector End Views in Hydraulic Brakes  | ||||||||||||||||
Brake Pressure Modulator Valve (BPMV) - LF (JE4)  | On the left front of the front cross member  | Air Antilock Brake System Component Views in Air Antilock Brake System  | Air Antilock Brake System Connector End Views in Air Antilock Brake System  | ||||||||||||||||
Brake Pressure Modulator Valve (BPMV) - LR (JE4)  | On the rear frame center crossmember in front of the axle  | Air Antilock Brake System Component Views in Air Antilock Brake System  | Air Antilock Brake System Connector End Views in Air Antilock Brake System  | ||||||||||||||||
Brake Pressure Modulator Valve (BPMV) - RF (JE4)  | On the right side and to the front of the front crossmember  | Air Antilock Brake System Component Views in Air Antilock Brake System  | Air Antilock Brake System Connector End Views in Air Antilock Brake System  | ||||||||||||||||
Brake Pressure Modulator Valve (BPMV) - RR (JE4)  | On the rear frame center crossmember in front of the axle  | Air Antilock Brake System Component Views in Air Antilock Brake System  | Air Antilock Brake System Connector End Views in Air Antilock Brake System  | ||||||||||||||||
C Solenoid (C3 Clutch) (Allison® MD)  | Internal to the automatic transmission  | --  | --  | ||||||||||||||||
C3 Pressure Switch (Allison® MD)  | Internal to the automatic transmission  | --  | --  | ||||||||||||||||
Camshaft Position (CMP) Sensor - Bottom (LG5)  | On the back end of the cylinder head  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
Camshaft Position (CMP) Sensor - Top (LG5)  | On the back end of the cylinder head  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
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 in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
Camshaft Position (CMP) Sensor (LG4)  | On the back end of the cylinder head  | Engine Controls Component Views in Engine Controls - 7.8L  | Engine Controls Connector End Views in Engine Controls - 7.8L  | ||||||||||||||||
Camshaft Position (CMP) Sensor (LLY)  | Mounted to front engine cover above and to the right of the crankshaft  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Chime Module (UL5/UXZ)  | Behind the left side of the I/P above the accelerator pedal  | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gages, and Console  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Cigar Lighter (DT4)  | On the center console  | Power Outlet Component Views in Power Outlets  | Power Outlet Connector End Views in Power Outlets  | ||||||||||||||||
Clearance Lamp - Left  | On top of the roof, on the forward left outboard side of the cab  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Clearance Lamp - Right  | On top of the roof, on the forward right outboard side of the cab  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
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  | Engine Electrical Component Views in Engine Electrical  | Engine Electrical Connector End Views in Engine Electrical  | ||||||||||||||||
Controller Area Network (CAN) Connector  | On the lower left side of the I/P, left of the lower steering column, by the data link connector (DLC)  | Computer/Integrating Systems Component Views in Computer/Integrating Systems  | Computer/Integrating Systems Connector End Views in Computer/Integrating Systems  | ||||||||||||||||
Coolant Bypass Valve Solenoid (C36)  | Under the cab below the right rear seat  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
Coolant Level Switch  | On the left side of the radiator on the lower left bottom side of the radiator surge tank  | Cooling System Component Views in Engine Cooling  | Cooling System Connector End Views in Engine Cooling  | ||||||||||||||||
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)  | On the top of the rear of the engine, next to the crankshaft position sensor  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Crankshaft Position (CKP) Sensor (LG4 and Automatic Transmission)  | On the top center of the flywheel housing  | Engine Controls Component Views in Engine Controls - 7.8L  | Engine Controls Connector End Views in Engine Controls - 7.8L  | ||||||||||||||||
Crankshaft Position (CKP) Sensor (LG4 and Manual Transmission)  | On the lower left front of the flywheel housing  | Engine Controls Component Views in Engine Controls - 7.8L  | Engine Controls Connector End Views in Engine Controls - 7.8L  | ||||||||||||||||
Crankshaft Position (CKP) Sensor (LG5)  | By the flywheel  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
Cruise Control Diode 1 (K34)  | Internal to the I/P harness  | --  | --  | ||||||||||||||||
Cruise Control Diode 2 (K34)  | Internal to the I/P harness  | --  | --  | ||||||||||||||||
D Solenoid (C4 Clutch) (Allison® MD)  | Internal to the automatic transmission  | --  | --  | ||||||||||||||||
Data Link Communications Resistor 1  | In the I/P harness, taped to the main harness, approximately 9.5 cm (3.7 In) from the EBCM breakout, towards the forward lamp harness breakout  | Computer/Integrating Systems Component Views in Computer/Integrating Systems  | Computer/Integrating Systems Connector End Views in Computer/Integrating Systems  | ||||||||||||||||
Data Link Communications Resistor 2  | In the chassis harness, taped to the main harness, approximately 9.5 cm (3.7 In) from the EBCM breakout, towards the forward lamp harness breakout  | Computer/Integrating Systems Component Views in Computer/Integrating Systems  | Computer/Integrating Systems Connector End Views in Computer/Integrating Systems  | ||||||||||||||||
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  | Computer/Integrating Systems Component Views in Computer/Integrating Systems  | Computer/Integrating Systems Connector End Views in Computer/Integrating Systems  | ||||||||||||||||
Daytime Running Lights (DRL) Diode  | Under the left side of the I/P above the data link connector (DLC)  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Daytime Running Lights (DRL) Module  | Left of the I/P, behind the headlamp switch  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Differential Lock Switch (HNB/HPL/HPN)  | On the left side of the interior bulkhead, behind the I/P, on the air brake supply manifold  | Rear Axle Component Views in Drive Axle - Locking/Limited Slip  | Rear Axle Connector End Views in Drive Axle - Locking/Limited Slip  | ||||||||||||||||
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  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Dome Lamp  | In the interior center of the roof  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Dome Lamp - Rear (Crew Cab)  | In the interior center rear of the roof  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Dome/Reading Lamp - Rear (Crew Cab/C95)  | In the interior center of the roof  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Dome/Reading Lamp (C95)  | In the interior center of the roof  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Door Latch Assembly - Driver (AU3)  | Inside the center rear of the driver door  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Door Latch Assembly - LR (Crew Cab/AU3)  | Inside the center rear of the left rear door  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Door Latch Assembly - Passenger (AU3)  | Inside the center rear of the right front door  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Door Latch Assembly - RR (Crew Cab/AU3)  | Inside the center rear of the right rear door  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Door Lock Relay (AU0/AU3)  | Behind the center of the engine, between engine cover and the HVAC module  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Door Lock Switch - Driver (AU3)  | On the left front door trim panel  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Door Lock Switch - Passenger (AU3)  | On the right front trim panel  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Driver Information Center (DIC)  | Center of the I/P, left of the I/P switchbank  | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gages, and Console  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Electronic Brake Control Module (EBCM)  | On the front left frame rail behind the wheel well  | 
 
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Engine Control Module (ECM) (LG4)  | Center of the I/P behind the HVAC controller  | Engine Controls Component Views in Engine Controls - 7.8L  | Engine Control Module Connector End Views in Engine Controls - 7.8L  | ||||||||||||||||
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 in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
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 in Engine Controls - 7.8L  | Engine Controls Connector End Views in Engine Controls - 7.8L  | ||||||||||||||||
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 in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
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 in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Engine Oil Level Switch (L18/LLY)  | On the lower right side of the engine, near the center, in the oil pan  | 
 
  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Engine Oil Level Switch (LG4)  | On the lower left side of the engine, near the center, in the oil pan  | Engine Controls Component Views in Engine Controls - 7.8L  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Engine Oil Level Switch (LG5)  | On the lower left side of the engine, near the center, in the oil pan  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
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 in Engine Controls - 8.1L  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Engine Oil Pressure (EOP) Sensor (LG4)  | On the lower right side of the engine, toward the front  | Engine Controls Component Views in Engine Controls - 7.8L  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Engine Oil Pressure (EOP) Sensor (LG5)  | On the left side of the engine block, on a tee, pointing up  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Engine Oil Pressure (EOP) Sensor (LLY)  | On the lower left rear side of the engine block  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Ether Injector Control Solenoid Valve (LG5/KTE)  | On the right side of the exterior bulkhead  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
Evaporative Emission (EVAP) Canister Purge Solenoid Valve (L18)  | In the engine compartment on the left side of the bulkhead  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
Exhaust Brake Actuator Control Solenoid Valve (K40/NPE)  | On the inside of the right frame rail behind the shock absorber  | Engine Exhaust Brake Component Views in Engine Exhaust  | Engine Exhaust Brake Connector End Views in Engine Exhaust  | ||||||||||||||||
Exhaust Brake Relay (K40/NPE w/o LLY)  | In the engine compartment on the right side of the fan shroud  | Engine Exhaust Brake Component Views in Engine Exhaust  | Engine Exhaust Brake Connector End Views in Engine Exhaust  | ||||||||||||||||
Exhaust Brake Switch (K40)  | Center of the I/P, below the gage center, in the I/P switchbank  | Engine Exhaust Brake Component Views in Engine Exhaust  | Engine Exhaust Brake Connector End Views in Engine Exhaust  | ||||||||||||||||
Exhaust Gas Recirculation (EGR) Valve (LG4)  | On the upper left side of the engine, center, on the intake manifold  | Engine Controls Component Views in Engine Controls - 7.8L  | Engine Controls Connector End Views in Engine Controls - 7.8L  | ||||||||||||||||
Exhaust Gas Recirculation (EGR) Valve (LLY)  | Right side of the engine above cylinder 1  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
F Solenoid (Lockup) (Allison® MD)  | Internal to the automatic transmission  | --  | --  | ||||||||||||||||
Fuel Heater (LG4/C30)  | On the lower left side of the engine, part of the secondary fuel filter  | Engine Controls Component Views in Engine Controls - 7.8L  | Engine Controls Connector End Views in Engine Controls - 7.8L  | ||||||||||||||||
Fuel Heater (LG5/KUN)  | On the left side of the engine, part of the heated fuel/water separator - secondary  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | --  | ||||||||||||||||
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 in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Fuel Injection Control Module (FICM) (LLY)  | On the engine, above the RF valve cover  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Fuel Injector 1 (L18)  | On the left front top of the engine at cylinder 1 intake port  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
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 in Engine Controls - 7.8L  | --  | ||||||||||||||||
Fuel Injector 1 (LG5)  | On the upper left side of the engine at cylinder 1  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
Fuel Injector 1 (LLY)  | On the right front side of the engine valve cover at cylinder 1  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Fuel Injector 2 (L18)  | On the right top of the engine at cylinder 2 intake port  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
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 in Engine Controls - 7.8L  | --  | ||||||||||||||||
Fuel Injector 2 (LG5)  | On the upper left side of the engine at cylinder 2  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
Fuel Injector 2 (LLY)  | On the left front side of the engine valve cover at cylinder 2  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Fuel Injector 3 (L18)  | On the left top of the engine at cylinder 3 intake port  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
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 in Engine Controls - 7.8L  | --  | ||||||||||||||||
Fuel Injector 3 (LG5)  | On the upper left side of the engine at cylinder 3  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
Fuel Injector 3 (LLY)  | On the right front side of the engine valve cover at cylinder 3  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Fuel Injector 4 (L18)  | On the right rear top of the engine at cylinder 4 intake port  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
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 in Engine Controls - 7.8L  | --  | ||||||||||||||||
Fuel Injector 4 (LG5)  | On the upper left side of the engine at cylinder 4  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
Fuel Injector 4 (LLY)  | On the left front side of the engine valve cover at cylinder 4  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Fuel Injector 5 (L18)  | On the left middle top of the engine at cylinder 5 intake port  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
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 in Engine Controls - 7.8L  | --  | ||||||||||||||||
Fuel Injector 5 (LG5)  | On the upper left side of the engine at cylinder 5  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
Fuel Injector 5 (LLY)  | On the right side of the engine valve cover at cylinder 5  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Fuel Injector 6 (L18)  | On the right middle top of the engine at cylinder 6 intake port  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
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 in Engine Controls - 7.8L  | --  | ||||||||||||||||
Fuel Injector 6 (LG5)  | On the upper left side of the engine at cylinder 6  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
Fuel Injector 6 (LLY)  | On the left rear side of the engine valve cover at cylinder 6  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Fuel Injector 7 (L18)  | On the left rear top of the engine at cylinder 8 intake port  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
Fuel Injector 7 (LLY)  | On the right rear side of the engine valve cover at cylinder 7  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Fuel Injector 8 (L18)  | On the right rear top of the engine at cylinder 8 intake port  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
Fuel Injector 8 (LLY)  | On the left rear side of the engine valve cover at cylinder 8  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Fuel Pressure Regulator (LG5)  | At the front center of the engine, on the injection pump  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
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 in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
Fuel Rail Pressure (FRP) Regulator (LLY)  | At the front center of the engine, on the injection pump  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
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 in Engine Controls - 7.8L  | Engine Controls Connector End Views in Engine Controls - 7.8L  | ||||||||||||||||
Fuel Rail Pressure (FRP) Sensor (LG5)  | On the upper left side of the engine, on the bottom of the fuel rail  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
Fuel Rail Pressure (FRP) Sensor (LLY)  | On top of the engine, the right fuel rail  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Fuel Rail Temperature (FRT) Sensor (LLY)  | On top of the engine, forward of the glow plug controller, to the left of the turbocharger on the fuel rail  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Fuel Sender - Secondary (Dual Tanks/LG4/LG5/LLY)  | On the outboard side of the right frame rail, in the top of the fuel tank  | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gages, and Console  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Fuel Sender (Dual Tanks/L18)  | On the outboard side of the right frame rail, in the top of the fuel tank  | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gages, and Console  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Fuel Sender (LG4/LG5/LLY)  | On the outboard side of the left frame rail, in the top of the fuel tank  | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gages, and Console  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Fuel Temperature Sensor (LG4)  | On the lower left side of the engine, at the rear, on the fuel injection pump  | Engine Controls Component Views in Engine Controls - 7.8L  | Engine Controls Connector End Views in Engine Controls - 7.8L  | ||||||||||||||||
Fuel Temperature Sensor (LLY)  | On top of the engine, forward of the glow plug controller, to the left of the turbocharger on the fuel rail  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Fuel Pump Relay - Secondary (Dual Tanks)  | On the inboard side of the right frame rail, near SP400  | 
 
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Fuel Tank Transfer Pump - Secondary (L18/LLY)  | On the inboard side of the left frame rail between the fuel tanks  | 
 
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Fuel/Water Separator - Primary (LG4/KUK)  | On the outboard left frame rail  | Engine Controls Component Views in Engine Controls - 7.8L  | --  | ||||||||||||||||
Fuel/Water Separator - Primary (LG4/LG5/NWB)  | On the outboard left frame rail  | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gages, and Console  | --  | ||||||||||||||||
Fuel/Water Separator - Secondary (LLY/NWB)  | On the right side of the engine  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
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  | Power and Grounding Component Views in Engine Electrical  | --  | ||||||||||||||||
Fusible Link 2  | In the engine chassis harness, from the fuse block - underhood (secondary) B+ bus to the Hydromax© relay  | Power and Grounding Component Views in Engine Electrical  | --  | ||||||||||||||||
Fusible Link 3  | In the engine chassis harness, from the engine chassis harness to the glow plug control module (GPCM) connector C1  | Power and Grounding Component Views in Engine Electrical  | --  | ||||||||||||||||
G Solenoid (Allison® MD)  | Internal to the automatic transmission  | --  | --  | ||||||||||||||||
Generator (w/o K65)  | Mounted to the right front of the engine  | Engine Electrical Component Views in Engine Electrical  | Engine Electrical Connector End Views in Engine Electrical  | ||||||||||||||||
Generator - Left (K65) (L18/LLY)  | Mounted to the left front of the engine  | Engine Electrical Component Views in Engine Electrical  | Engine Electrical Connector End Views in Engine Electrical  | ||||||||||||||||
Generator - Right (K65) (L18/LLY)  | Mounted to the right front of the engine  | Engine Electrical Component Views in Engine Electrical  | Engine Electrical Connector End Views in Engine Electrical  | ||||||||||||||||
Glow Plug 1 (LG4)  | On the upper left side of the engine, in the cylinder head, at cylinder 1  | Engine Controls Component Views in Engine Controls - 7.8L  | --  | ||||||||||||||||
Glow Plug 1 (LG5)  | On the upper left side of the engine, in the cylinder head, at cylinder 1  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | --  | ||||||||||||||||
Glow Plug 1 (LLY)  | On the upper right side of the engine, in the cylinder head, at cylinder 1  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | --  | ||||||||||||||||
Glow Plug 2 (LG4)  | On the upper left side of the engine, in the cylinder head, at cylinder 2  | Engine Controls Component Views in Engine Controls - 7.8L  | --  | ||||||||||||||||
Glow Plug 2 (LG5)  | On the upper left side of the engine, in the cylinder head, at cylinder 2  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | --  | ||||||||||||||||
Glow Plug 2 (LLY)  | On the upper left side of the engine, in the cylinder head, at cylinder 2  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | --  | ||||||||||||||||
Glow Plug 3 (LG4)  | On the upper left side of the engine, in the cylinder head, at cylinder 3  | Engine Controls Component Views in Engine Controls - 7.8L  | --  | ||||||||||||||||
Glow Plug 3 (LG5)  | On the upper left side of the engine, in the cylinder head, at cylinder 3  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | --  | ||||||||||||||||
Glow Plug 3 (LLY)  | On the upper right side of the engine, in the cylinder head, at cylinder 3  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | --  | ||||||||||||||||
Glow Plug 4 (LG4)  | On the upper left side of the engine, in the cylinder head, at cylinder 4  | Engine Controls Component Views in Engine Controls - 7.8L  | --  | ||||||||||||||||
Glow Plug 4 (LG5)  | On the upper left side of the engine, in the cylinder head, at cylinder 4  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | --  | ||||||||||||||||
Glow Plug 4 (LLY)  | On the upper left side of the engine, in the cylinder head, at cylinder 4  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | --  | ||||||||||||||||
Glow Plug 5 (LG4)  | On the upper left side of the engine, in the cylinder head, at cylinder 5  | Engine Controls Component Views in Engine Controls - 7.8L  | --  | ||||||||||||||||
Glow Plug 5 (LG5)  | On the upper left side of the engine, in the cylinder head, at cylinder 5  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | --  | ||||||||||||||||
Glow Plug 5 (LLY)  | On the upper right side of the engine, in the cylinder head, at cylinder 5  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | --  | ||||||||||||||||
Glow Plug 6 (LG4)  | On the upper left side of the engine, in the cylinder head, at cylinder 6  | Engine Controls Component Views in Engine Controls - 7.8L  | --  | ||||||||||||||||
Glow Plug 6 (LG5)  | On the upper left side of the engine, in the cylinder head, at cylinder 6  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | --  | ||||||||||||||||
Glow Plug 6 (LLY)  | On the upper left side of the engine, in the cylinder head, at cylinder 6  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | --  | ||||||||||||||||
Glow Plug 7 (LLY)  | On the upper right side of the engine, in the cylinder head, at cylinder 7  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | --  | ||||||||||||||||
Glow Plug 8 (LLY)  | On the upper left side of the engine, in the cylinder head, at cylinder 8  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | --  | ||||||||||||||||
Glow Plug Controller (LLY)  | Rear of the engine above the rocker cover to the left of the turbocharger  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Glow Plug Relay (LG4)  | In the engine compartment on the cowl  | Engine Controls Component Views in Engine Controls - 7.8L  | Engine Controls Connector End Views in Engine Controls - 7.8L  | ||||||||||||||||
Glow Plug Relay (LG5)  | On the upper left side of the engine  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
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  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Headlamp - High Beam - Right (V22)  | On the front right of the vehicle  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Headlamp - High/Low Beam - Left (GRW)  | Left front of the vehicle  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Headlamp - High/Low Beam - Right (GRW)  | Right front of the vehicle  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Headlamp - Low Beam - Left (V22)  | On the front left of the vehicle  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Headlamp - High Beam - Right (V22)  | Front right of the vehicle  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Headlamp Switch  | Left side of the I/P, below the HVAC air outlet  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Heated Fuel/Water Separator - Secondary (LG5/KUN)  | On the left side of the engine  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
Heated Oxygen Sensor (HO2S) Bank 1 (L18)  | On the left exhaust pipe below the exhaust manifold  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
Heated Oxygen Sensor (HO2S) Bank 2 (L18)  | On the right exhaust pipe below the exhaust manifold  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
High Idle Switch (UF3)  | Center of the I/P, below the gage center, in the I/P switchbank  | 
 
 
 
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Horn (w/o U08)  | Behind the front bumper on the front right side of the cross member  | Horn Component Views in Horns  | Horn Connector End Views in Horns  | ||||||||||||||||
Horn, A-Note (U08)  | Behind the front bumper on the front right side of the cross member  | Horn Component Views in Horns  | Horn Connector End Views in Horns  | ||||||||||||||||
Horn, F-Note (U08)  | Behind the front bumper on the front right side of the cross member  | Horn Component Views in Horns  | Horn Connector End Views in Horns  | ||||||||||||||||
Horn Switch  | Center of the upper steering column, on the front of the steering wheel  | Horn Component Views in Horns  | --  | ||||||||||||||||
HVAC Control Assembly  | Center of the I/P, left of the I/P switchbank  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
HVAC Control Assembly - Auxiliary (C36)  | In the front center of the headliner  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
Hydromax® Fuse (JE3)  | In the engine compartment left side under the brake master cylinder taped to the harness  | Hydraulic Brake Component Views in Hydraulic Brakes  | Hydraulic Brake Connector End Views in Hydraulic Brakes  | ||||||||||||||||
Hydromax® Relay (JE3)  | Left rear of the engine compartment behind the power steering fluid reservoir  | Hydraulic Brake Component Views in Hydraulic Brakes  | Hydraulic Brake Connector End Views in Hydraulic Brakes  | ||||||||||||||||
I/P Dimmer Switch  | Left side of the I/P, below the HVAC air outlet, part of the headlamp switch  | Lighting Systems Component Views in Lighting Systems  | --  | ||||||||||||||||
Identification (ID) Lamp - Center  | On top of the roof, on the forward center of the cab  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Identification (ID) Lamp - Left  | On top of the roof, on the forward left side of the cab, the inboard lamp  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Identification (ID) Lamp - Right  | On top of the roof, on the forward right side of the cab, the inboard lamp  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
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 in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
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 in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
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 in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
Ignition Coil 4 (L18)  | On the right side top of the engine, on the valve cover, center, at cylinder 4  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
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 in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
Ignition Coil 6 (L18)  | On the right side top of the engine, on the valve cover, center, at cylinder 6  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
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 in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
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 in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
Ignition Key Warning 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  | SIR Component Views in SIR  | SIR Connector End Views in SIR  | ||||||||||||||||
Inflatable Restraint I/P Module (AK5)  | Front right side of the I/P  | SIR Component Views in SIR  | SIR Connector End Views in SIR  | ||||||||||||||||
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  | SIR Component Views in SIR  | SIR Connector End Views in SIR  | ||||||||||||||||
Inflatable Restraint Resistor Module (AJ3)  | Behind the left kick panel  | SIR Component Views in SIR  | SIR Connector End Views in SIR  | ||||||||||||||||
Inflatable Restraint Sensing and Diagnostic Module (SDM) (AJ3/AK5)  | Under the driver seat  | SIR Component Views in SIR  | SIR Connector End Views in SIR  | ||||||||||||||||
Inflatable Restraint SIR Coil (AJ3/AK5)  | Center of the upper steering column, behind the steering wheel  | SIR Component Views in SIR  | SIR Connector End Views in SIR  | ||||||||||||||||
Inflatable Restraint Steering Wheel Module (AJ3/AK5)  | Center of the upper steering column, on the front of the steering wheel  | SIR Component Views in SIR  | SIR Connector End Views in SIR  | ||||||||||||||||
Instrument Panel Cluster (IPC)  | In the left side of the I/P  | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gages, and Console  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Intake Air (IA) Heater (LG5)  | On the intake manifold  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
Intake Air (IA) Heater Relay (LG5)  | On the top right side of the cylinder head  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
Intake Air Temperature (IAT) Sensor (LG5)  | On the top right side of the cylinder head  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
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  | Rear Axle Component Views in Drive Axle - Locking/Limited Slip  | Rear Axle Connector End Views in Drive Axle - Locking/Limited Slip  | ||||||||||||||||
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  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
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 in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
Knock Sensor (KS) Bank 2 (L18)  | In the engine block at the right side below the exhaust manifold  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
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  | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gages, and Console  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
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  | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gages, and Console  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Low Air Pressure Switch (JE3/K16)  | Inboard of the left frame rail, on the front end of the air supply reservoir  | Auxiliary Air Compressor Component Views in Air Compressor - Auxiliary  | Auxiliary Air Compressor Connector End Views in Air Compressor - Auxiliary  | ||||||||||||||||
Manifold Absolute Pressure (MAP) Sensor (L18)  | In the front center of the intake manifold behind the water outlet  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
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 in Engine Controls - 7.8L  | Engine Controls Connector End Views in Engine Controls - 7.8L  | ||||||||||||||||
Manifold Absolute Pressure (MAP) Sensor (LG5)  | On the left side of the engine  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
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 in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Marker Lamp Switch  | Center of the I/P, below the gage center, in the I/P switchbank  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
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  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Outside Rearview Mirror - Driver (DB6/DB7/DB8)  | Forward of the left door on the body  | Power Door Systems Component Views in Doors  | 
 
  | ||||||||||||||||
Outside Rearview Mirror - Passenger (DB6/DB7/DB8)  | Forward of the right door on the body  | Power Door Systems Component Views in Doors  | 
 
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Outside Rearview Mirror Switch (DB6)  | On the driver door  | Power Door Systems Component Views in Doors  | |||||||||||||||||
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 Automatic Transmission - Allison  | Automatic Transmission Related Connector End Views in Automatic Transmission - Allison  | ||||||||||||||||
Park Brake Switch (JE3) (C4/C5)  | On the left kick panel to the right rear of the park brake lever  | Hydraulic Brake Component Views in Hydraulic Brakes  | Hydraulic Brake Connector End Views in Hydraulic Brakes  | ||||||||||||||||
Park Brake Switch (JE3) (C6/C7/C8)  | On the park brake lever under the center console  | Hydraulic Brake Component Views in Hydraulic Brakes  | Hydraulic Brake Connector End Views in Hydraulic Brakes  | ||||||||||||||||
Park Brake Switch (JE4)  | On the left side of the exterior bulkhead, on the air brake application valve  | Air Brake System Component Views in Air Brakes  | Air Brake System Connector End Views in Air Brakes  | ||||||||||||||||
Park/Neutral Position (PNP) Switch (Allison® LCT)  | Mounted on the left side of the transmission  | Automatic Transmission Electronic Component Views in Automatic Transmission - Allison  | Automatic Transmission Related Connector End Views in Automatic Transmission - Allison  | ||||||||||||||||
Park/Neutral Position (PNP) Switch (Allison® MD)  | Internal to the automatic transmission  | --  | --  | ||||||||||||||||
Park/Turn Signal Lamp - LF  | On the left front of the vehicle  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Park/Turn Signal Lamp - RF  | On the right front of the vehicle  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
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  | Hydraulic Brake Component Views in Hydraulic Brakes  | Hydraulic Brake Connector End Views in Hydraulic Brakes  | ||||||||||||||||
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  | Hydraulic Brake Component Views in Hydraulic Brakes  | Hydraulic Brake Connector End Views in Hydraulic Brakes  | ||||||||||||||||
Power Take-Off (PTO) Switch  | Center of the I/P, below the gage center, in the I/P switchbank  | Power Take-Off (PTO) Component Views in Power Take-Off  | Power Take-Off (PTO) Connector End Views in Power Take-Off  | ||||||||||||||||
Powertrain Control Module (PCM) (L18)  | In the engine compartment on the left side of the bulkhead  | Engine Controls Component Views in Engine Controls - 8.1L  | Powertrain Control Module Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
Pressure Control (PC) Solenoid Valve A (Allison® LCT)  | Internal to the automatic transmission  | --  | Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison  | ||||||||||||||||
Pressure Control (PC) Solenoid Valve B (Allison® LCT)  | Internal to the automatic transmission  | --  | Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison  | ||||||||||||||||
Pressure Switch C (Allison® LCT)  | Internal to the automatic transmission, on the pressure switch manifold (PSM)  | --  | --  | ||||||||||||||||
Pressure Switch D (Allison® LCT)  | Internal to the automatic transmission, on the pressure switch manifold (PSM)  | --  | --  | ||||||||||||||||
Pressure Switch E (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 in Automatic Transmission - Allison  | ||||||||||||||||
Pressure Switch R (Allison® LCT)  | Internal to the automatic transmission, on the pressure switch manifold (PSM)  | --  | --  | ||||||||||||||||
Radio (w/o UL5)  | Center of the I/P, left of the gage center and I/P switchbank  | Entertainment Component Views in Entertainment  | Entertainment Connector End Views in Entertainment  | ||||||||||||||||
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 Component Views in Rear Axle Controls  | Rear Axle Connector End Views in Rear Axle Controls  | ||||||||||||||||
Rear Axle Driver Control Switch - Two Speed (HPZ/Manual Transmission)  | Mounted on the manual transmission shift lever  | Rear Axle Component Views in Rear Axle Controls  | Rear Axle Connector End Views in Rear Axle Controls  | ||||||||||||||||
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  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Rear Axle Shift Motor - Two Speed (HPZ)  | On the front of the rear axle, on the differential  | Rear Axle Component Views in Rear Axle Controls  | Rear Axle Connector End Views in Rear Axle Controls  | ||||||||||||||||
Rear Axle Shift Relay - Two Speed (HPZ)  | On the front side of the crossmember forward of the rear axle  | Rear Axle Component Views in Rear Axle Controls  | Rear Axle Connector End Views in Rear Axle Controls  | ||||||||||||||||
Rear Axle Shift Switch - Two Speed (HR1/HR2)  | On the frame rail forward of the rear axle  | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gages, and Console  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Rear Window Defogger Grid (C49)  | On the rear window  | Stationary Windows Component Views in Stationary Windows  | Stationary Windows Connector End Views in Stationary Windows  | ||||||||||||||||
Rear Window Defogger Switch (C49)  | Center of the I/P, left of the I/P switchbank, part of the HVAC control assembly  | HVAC Component Views in HVAC Systems - Manual  | --  | ||||||||||||||||
Remote Control Door Lock Receiver (RCDLR) (AU0)  | Under the left side of the I/P above the accelerator pedal  | Keyless Entry Component Views s in Keyless Entry  | Keyless Entry Connector End Views in Keyless Entry  | ||||||||||||||||
Serial Data Gateway (SDG) Module (Allison® MD)  | Above the accelerator pedal on top of the I/P support bracket  | Computer/Integrating Systems Component Views in Computer/Integrating Systems  | Computer/Integrating Systems Connector End Views in Computer/Integrating Systems  | ||||||||||||||||
Shift Solenoid C (Allison® LCT)  | Internal to the automatic transmission  | --  | Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison  | ||||||||||||||||
Shift Solenoid D (Allison® LCT)  | Internal to the automatic transmission  | --  | Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison  | ||||||||||||||||
Shift Solenoid E (Allison® LCT)  | Internal to the automatic transmission  | --  | Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison  | ||||||||||||||||
Speaker - LF (w/o UL5)  | In the left front door  | Entertainment Component Views in Entertainment  | Entertainment Connector End Views in Entertainment  | ||||||||||||||||
Speaker - LF Tweeter (ZQ2)  | In the left front door  | Entertainment Component Views in Entertainment  | Entertainment Connector End Views in Entertainment  | ||||||||||||||||
Speaker - LR  | In the left rear door  | Entertainment Component Views in Entertainment  | Entertainment Connector End Views in Entertainment  | ||||||||||||||||
Speaker - RF (w/o UL5)  | In the right front door  | Entertainment Component Views in Entertainment  | Entertainment Connector End Views in Entertainment  | ||||||||||||||||
Speaker - RF Tweeter (ZQ2)  | In the right front door  | Entertainment Component Views in Entertainment  | Entertainment Connector End Views in Entertainment  | ||||||||||||||||
Speaker - RR  | In the right rear door  | Entertainment Component Views in Entertainment  | Entertainment Connector End Views in Entertainment  | ||||||||||||||||
Starter  | On the lower right side of the engine  | Engine Electrical Component Views in Engine Electrical  | --  | ||||||||||||||||
Starter Solenoid  | On the lower right side of the engine, part of the starter  | Engine Electrical Component Views in Engine Electrical  | --  | ||||||||||||||||
Starter Temperature Switch (KQR)  | On the lower right side of the engine, part of the starter  | Engine Electrical Component Views in Engine Electrical  | Engine Electrical Connector End Views in Engine Electrical  | ||||||||||||||||
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  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Stop Lamp Switch (JE4)  | On the left side of the exterior bulkhead, under the brake pedal, on the air brake application valve  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
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 in Engine Controls - 7.8L  | Engine Controls Connector End Views in Engine Controls - 7.8L  | ||||||||||||||||
Suction Control Valve (SCV) (LG5)  | On the lower left side of the engine, at the rear  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | Engine Controls Connector End Views in Engine Controls - 7.2L (Caterpillar)  | ||||||||||||||||
Tail Lamp Assembly - Left  | At the rear of the left frame rail  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Tail Lamp Assembly - Right  | At the rear of the right frame rail  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Tail/Stop and Turn Signal Lamp - Left  | At the rear of the left frame rail, part of the tail lamp assembly - left  | --  | --  | ||||||||||||||||
Tail/Stop and Turn Signal Lamp - Right  | 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 in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
Throttle Body (L18)  | Top center front of the engine  | Engine Controls Component Views in Engine Controls - 8.1L  | Engine Controls Connector End Views in Engine Controls - 8.1L  | ||||||||||||||||
Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve F (Allison® LCT)  | Internal to the automatic transmission  | --  | Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison  | ||||||||||||||||
Traction Control Switch (NW9)  | Center of the I/P, below the gage center, in the I/P switchbank  | 
 
  | 
 
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Traction Control Valve (JE4 and NW9)  | On the right side of the crossmember forward of the rear axle  | Air Antilock Brake System Component Views in Air Antilock Brake System  | Air Antilock Brake System Connector End Views in Air Antilock Brake System  | ||||||||||||||||
Tractor/Trailer Connector (RQ2 and U86 or RQ3)  | On the left side of the rear crossmember  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Tractor/Trailer Plug (VPG)  | On the left side of the rear crossmember  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Tractor Receptacle (JE4/RQ3)  | On the left side of the rear crossmember  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Trailer Connector (RQ2 and U86 or RQ3)  | On the left side of the rear crossmember  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
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  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Transfer Case Encoder Motor (NP1)  | On the forward right side of the transfer case  | Transfer Case Control Component Views in Transfer Case - NVG 273  | Transfer Case Control Connector End Views in Transfer Case - NVG 273  | ||||||||||||||||
Transfer Case Shift Control Module (NP1)  | Behind the left side of the I/P behind the headlamp switch  | Transfer Case Control Component Views in Transfer Case - NVG 273  | Transfer Case Control Connector End Views in Transfer Case - NVG 273  | ||||||||||||||||
Transfer Case Shift Control Switch (NP1)  | Center of the I/P, above the I/P switchbank, in the gage center  | Transfer Case Control Component Views in Transfer Case - NVG 273  | Transfer Case Control Connector End Views in Transfer Case - NVG 273  | ||||||||||||||||
Transmission Control Module (TCM) (Allison® LCT or MD)  | Right rear of the engine compartment  | Automatic Transmission Electronic Component Views in Automatic Transmission - Allison  | Automatic Transmission Related Connector End Views in Automatic Transmission - Allison  | ||||||||||||||||
Transmission Fluid Temperature (TFT) Sensor (Allison® LCT)  | Internal to the automatic transmission, on the pressure switch manifold (PSM)  | --  | --  | ||||||||||||||||
Transmission Fluid Temperature (TFT) Sensor (Allison® MD)  | Internal to the automatic 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 in Automatic Transmission - Allison  | Automatic Transmission Related Connector End Views in Automatic Transmission - Allison  | ||||||||||||||||
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 in Engine Controls - 7.8L  | Engine Controls Connector End Views in Engine Controls - 7.8L  | ||||||||||||||||
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 in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Turbocharger Vane Position (TVP) Sensor (LG4)  | At the right side of the engine, on the top center of the turbocharger  | Engine Controls Component Views in Engine Controls - 7.8L  | Engine Controls Connector End Views in Engine Controls - 7.8L  | ||||||||||||||||
Turbocharger Vane Position (TVP) Sensor (LLY)  | At the right side of the engine, on the top center of the turbocharger  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Turn Signal/Hazard Flasher Module  | Left lower side of the I/P to the right of the lower steering column  | Lighting Systems Component Views in Lighting Systems  | Lighting Systems Connector End Views in Lighting Systems  | ||||||||||||||||
Turn Signal/Multifunction Switch  | Center of the upper steering column, behind the steering wheel  | Lighting Systems Component Views in Lighting Systems  | --  | ||||||||||||||||
Vacuum Pump (w/o L18)  | In the engine compartment at the front right of the radiator support by the radiator outlet  | HVAC Component Views in HVAC Systems - Manual  | HVAC Connector End Views in HVAC Systems - Manual  | ||||||||||||||||
Vehicle Speed Sensor (VSS) (Automatic Transmission)  | On the automatic transmission on the top left rear  | Automatic Transmission Electronic Component Views in Automatic Transmission - Allison  | Automatic Transmission Related Connector End Views in Automatic Transmission - Allison  | ||||||||||||||||
Vehicle Speed Sensor (VSS) (Manual Transmission)  | On the transmission on the top left rear  | 
 
  | 
 
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Water-In-Fuel Sensor (LG4/LG5/KUK/NWB)  | On the outboard left frame rail, part of the fuel/water separator - primary  | Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gages, and Console  | Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gages, and Console  | ||||||||||||||||
Water-In-Fuel Sensor (LG5/KUN)  | On the left side of the engine, part of the heated fuel/water separator - secondary  | Engine Controls Component Views in Engine Controls - 7.2L (Caterpillar)  | --  | ||||||||||||||||
Water-In-Fuel Sensor (LLY/NWB)  | On the right side of the engine, on the bottom of the fuel/water separator - secondary  | Engine Controls Component Views in Engine Controls - 6.6L (LLY)  | Engine Controls Connector End Views in Engine Controls - 6.6L (LLY)  | ||||||||||||||||
Wheel Speed Sensor (WSS) - LF (JE3)  | Mounted in the left front wheel steering knuckle  | Antilock Brake System Component Views in Antilock Brake System  | Antilock Brake System Connector End Views in Antilock Brake System  | ||||||||||||||||
Wheel Speed Sensor (WSS) - LF (JE4)  | Mounted in the left front wheel steering knuckle  | Air Antilock Brake System Component Views in Air Antilock Brake System  | Air Antilock Brake System Connector End Views in Air Antilock Brake System  | ||||||||||||||||
Wheel Speed Sensor (WSS) - LR (JE3)  | On the left rear wheel  | Antilock Brake System Component Views in Antilock Brake System  | Antilock Brake System Connector End Views in Antilock Brake System  | ||||||||||||||||
Wheel Speed Sensor (WSS) - LR (JE4)  | Mounted in the left rear brake backing plate  | Air Antilock Brake System Component Views in Air Antilock Brake System  | Air Antilock Brake System Connector End Views in Air Antilock Brake System  | ||||||||||||||||
Wheel Speed Sensor (WSS) - LR Middle (Tandem Axle/JE4)  | Mounted in the left middle backing plate  | Air Antilock Brake System Component Views in Air Antilock Brake System  | Air Antilock Brake System Connector End Views in Air Antilock Brake System  | ||||||||||||||||
Wheel Speed Sensor (WSS) - RF (JE3)  | Mounted in the right front wheel steering knuckle  | Antilock Brake System Component Views in Antilock Brake System  | Antilock Brake System Connector End Views in Antilock Brake System  | ||||||||||||||||
Wheel Speed Sensor (WSS) - RF (JE4)  | Mounted in the right front wheel steering knuckle  | Air Antilock Brake System Component Views in Air Antilock Brake System  | Air Antilock Brake System Connector End Views in Air Antilock Brake System  | ||||||||||||||||
Wheel Speed Sensor (WSS) - RR (JE3)  | Mounted in the right rear brake backing plate  | Antilock Brake System Component Views in Antilock Brake System  | Antilock Brake System Connector End Views in Antilock Brake System  | ||||||||||||||||
Wheel Speed Sensor (WSS) - RR (JE4)  | Mounted in the right rear brake backing plate  | Air Antilock Brake System Component Views in Air Antilock Brake System  | Air Antilock Brake System Connector End Views in Air Antilock Brake System  | ||||||||||||||||
Wheel Speed Sensor (WSS) - RR Middle (Tandem Axle/JE4)  | Mounted in the right middle backing plate  | Air Antilock Brake System Component Views in Air Antilock Brake System  | Air Antilock Brake System Connector End Views in Air Antilock Brake System  | ||||||||||||||||
Window Motor - Driver (A31)  | In the driver door  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Window Motor - LR (A31/Crew Cab)  | In the left rear door  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Window Motor - Passenger (A31)  | In the passenger door  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Window Motor - RR (A31/Crew Cab)  | In the right rear door  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Window Switch - Driver (A31)  | On the driver door trim panel armrest  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Window Switch - LR (A31/Crew Cab)  | On the left rear door trim panel  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Window Switch - Passenger (A31)  | On the passenger door trim panel  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Window Switch - RR (A31/Crew Cab)  | On the right rear door trim panel  | Power Door Systems Component Views in Doors  | |||||||||||||||||
Windshield Washer Fluid Level Switch  | In the left rear engine compartment mounted on the windshield washer fluid reservoir  | Wiper/Washer Component Views in Wipers/Washer Systems  | Wiper/Washer Connector End Views in Wipers/Washer Systems  | ||||||||||||||||
Windshield Washer Fluid Pump  | In the left rear engine compartment mounted on the windshield washer fluid reservoir  | Wiper/Washer Component Views in Wipers/Washer Systems  | Wiper/Washer Connector End Views in Wipers/Washer Systems  | ||||||||||||||||
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  | Wiper/Washer Component Views in Wipers/Washer Systems  | Wiper/Washer Connector End Views in Wipers/Washer Systems  | ||||||||||||||||
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 (Upfitter PTO Connector - 10 cavities - PTO)  | Chassis harness to the upfitter supplied harness, taped to the engine harness directly below the engine control module (ECM)  | ||||||||||||||||||
C103 (3 cavities - Upfitter AUX WRG Connector)  | Chassis harness to upfitter harness, mounted to the top of the left front shock tower  | ||||||||||||||||||
C104 (6 cavities - LG4/LG5/LLY)  | 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 (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  | ||||||||||||||||||
C111 (7 cavities - L18)  | Engine chassis harness to the ignition coil harness - bank 2, top right of the engine on the rocker cover  | ||||||||||||||||||
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 w/o KQR)  | Engine chassis harness to the engine chassis harness, in the engine compartment near the starter  | ||||||||||||||||||
C115 (1 cavity - LG5/KQR)  | 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 (40 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)  | Engine chassis harness to the engine harness  | ||||||||||||||||||
C121 (10 cavities - Upfitter PTO Connector)  | Chassis harness to the upfitter supplied 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 engine control module (ECM)/powertrain control module (PCM)/transmission control module (TCM)  | ||||||||||||||||||
C126 (40 cavities)  | Chassis harness to the I/P 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  | ||||||||||||||||||
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 in Automatic Transmission - Allison  | Automatic Transmission Inline Harness Connector End View in Automatic Transmission - Allison  | ||||||||||||||||
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 - Crew Cab)  | 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 - left to the cross body harness, behind the left kick panel  | ||||||||||||||||||
C212 (22 cavities)  | Door harness - right to the cross body harness, behind the right kick panel  | ||||||||||||||||||
C213 (40 cavities - LLY)  | Engine harness to engine chassis harness, on the right frame rail near the front shock absorber  | ||||||||||||||||||
C214 (2 cavities)  | I/P harness to the auxiliary power posts, right side the I/P  | ||||||||||||||||||
C215 (8 cavities)  | Door harness - left to the mirror harness, behind the left kick panel  | ||||||||||||||||||
C216 (8 cavities)  | Door harness - right to the mirror harness, behind the right kick panel  | ||||||||||||||||||
C218 (6 cavities)  | Air temperature actuator jumper harness to the I/P harness, behind the right side of the I/P  | ||||||||||||||||||
C219 (4 cavities)  | Door harness - left to the cross body harness, behind the left kick panel  | ||||||||||||||||||
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 - 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)  | Tail lamp harness to the chassis harness, rear frame crossmember behind the rear tires  | ||||||||||||||||||
C304 (8 cavities - RQ2 and 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 supplied 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 - JE4)  | 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 rear 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  | ||||||||||||||||||
C409 (8 cavities)  | 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  | ||||||||||||||||||
C412 (8 cavities w/o UZF)  | Tail lamp harness to the rear chassis harness  | ||||||||||||||||||
C413 (8 cavities UZF)  | Tail lamp harness to the backup alarm 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  | --  | |||||||||||||||||
G115  | On the back of the left cylinder head  | --  | |||||||||||||||||
G118  | Right front of the engine block behind G119  | --  | |||||||||||||||||
G119  | Right front of the engine block ahead of G118  | --  | |||||||||||||||||
G120  | Left front of the engine block above the oil level sensor  | --  | |||||||||||||||||
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 (LG4/LG5)  | Under the left front door foot step  | --  | |||||||||||||||||
G400 (L18)  | Left rear of the vehicle behind left rear tires  | --  | |||||||||||||||||
G408  | (CKT 350) On the inboard RH frame rail  | --  | |||||||||||||||||
G410  | (CKT 350) At the outboard side of the right frame rail on top of the fuel tank  | --  | |||||||||||||||||
G411  | (CKT 350) At the outboard side of the left frame rail on top of the fuel tank  | --  | |||||||||||||||||
G412 (Family 2)  | (CKT 350) On top of the fuel tank  | --  | |||||||||||||||||
S100  | (CKT 1020) In the engine chassis 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 chassis harness, approximately 18.5 cm (7.3 in) from the breakout for C101, C200 toward the engine control module (ECM)  | --  | |||||||||||||||||
S102 (w/o L18)  | (CKT 439) In the engine chassis harness, approximately 13.5 cm (5.3 in) from the breakout for C101, C200 toward the engine control module (ECM)  | --  | |||||||||||||||||
S103 (w/o L18)  | (CKT 239) In the engine chassis harness, approximately 23.5 cm (9.3 in) from the breakout for C101, C200 toward the engine control module (ECM)  | --  | |||||||||||||||||
S104  | In the engine harness, approximately 7 cm (3 in) into the branch to the generator connector C2  | --  | |||||||||||||||||
S105  | (CKT 1042) In the engine chassis harness, approximately 5.5 cm (2.2 in) from the breakout for the fuse block - underhood  | --  | |||||||||||||||||
S106  | (CKT 539) In the engine chassis harness, approximately 20.5 cm (8 in) from the breakout for C118, 119 toward the underhood fuse block  | --  | |||||||||||||||||
S107 (L18/LLY)  | (CKT 339) In the engine chassis harness, approximately 4 cm (2 in) from the breakout for C123, toward the breakout for the manifold absolute pressure (MAP) sensor and exhaust gas recirculation (EGR) valve  | --  | |||||||||||||||||
S114  | (CKT 250) In the engine chassis harness, approximately 7 cm (3 in) from the breakout for C121 toward the fuse block - underhood  | --  | |||||||||||||||||
S109 (LLY)  | (CKT 1694) In the engine chassis harness, approximately 3 cm (1.2 in) before the breakout to C102 - transmission optional connector  | --  | |||||||||||||||||
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 (w/o LG4)  | (CKT 351) In the engine chassis harness, approximately 2.5 cm (1 in) from transmission optional connector toward the fuse block - underhood  | --  | |||||||||||||||||
S118 (LG4)  | (CKT 887) In the engine harness  | --  | |||||||||||||||||
S119 (LG4)  | (CKT 887) In the engine harness  | --  | |||||||||||||||||
S120  | (CKT 488) In the engine chassis harness, approximately 7 cm (3 in) from the breakout for C121 toward the fuse block - underhood  | --  | |||||||||||||||||
S121 (w/o L18)  | (CKT 2522) In the engine chassis harness, approximately 8.5 cm (3.3 in) from the breakout for C101, C200 toward the engine control module (ECM)  | --  | |||||||||||||||||
S122  | In the engine harness, approximately 15 cm (6 in) from C109  | --  | |||||||||||||||||
S123 (L18)  | In the engine harness, approximately 12 cm (5 in) from the powertrain control module (PCM)  | --  | |||||||||||||||||
S124  | In the engine harness, approximately 27 cm (11 in) from C110  | --  | |||||||||||||||||
S125 (L18)  | In the engine harness, approximately 33 cm (13 in) from the powertrain control module  | --  | |||||||||||||||||
S126  | In the engine harness, approximately 6 cm (2 in) from the power brake booster pump motor breakout toward the ABS relay center  | --  | |||||||||||||||||
S127  | In the engine harness branch for transmission control module (TCM) connector C1, approximately 7 cm (3 in) from the breakout for the transmission control module (TCM) connector C1  | --  | |||||||||||||||||
S128  | In the engine harness branch to the electronic brake control module (EBCM), approximately 10 cm (4 in) from the breakout for G412  | --  | |||||||||||||||||
S130  | In the engine harness, at the starter solenoid B+ terminal, fusible link M  | --  | |||||||||||||||||
S131  | (CKT 2) In the engine harness, approximately 10 cm (4 in) from the windshield wiper motor breakout toward the ABS relay center  | --  | |||||||||||||||||
S132  | (CKT 2) In the engine harness, approximately 5 cm (2 in) forward of the transmission control module (TCM) breakout  | --  | |||||||||||||||||
S133 (L18)  | (CKT 25) In the engine harness, approximately 4 cm (2 in) from the exhaust gas recirculation (EGR) valve  | --  | |||||||||||||||||
S134 (L18)  | In the engine harness, approximately 8 cm (3 in) from the exhaust gas recirculation (EGR) valve breakout in the branch  | --  | |||||||||||||||||
S135  | In the engine harness, approximately 15 cm (6 in) from C109  | --  | |||||||||||||||||
S136 (L18)  | In the engine harness, approximately 12 cm (5 in) from the breakout for C121, toward the powertrain control module (PCM)  | --  | |||||||||||||||||
S137 (L18)  | In the engine harness, approximately 8 cm (3 in) from the exhaust gas recirculation (EGR) valve breakout in the branch  | --  | |||||||||||||||||
S138 (L18)  | (CKT 2) In the engine harness, approximately 12 cm (5 in) from the exhaust gas recirculation (EGR) valve  | --  | |||||||||||||||||
S139  | In the engine harness, approximately 15 cm (6 in) from C109  | --  | |||||||||||||||||
S140  | In the engine harness, approximately 12 cm (5 in) from the breakout for C121  | --  | |||||||||||||||||
S141  | (CKT 2) In the engine chassis harness, approximately 15 cm (6 in) from C109  | --  | |||||||||||||||||
S142 (L18)  | 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  | In the engine harness, approximately 27 cm (11 in) from C110  | --  | |||||||||||||||||
S146 (w/o L18)  | (CKT 762) In the engine harness, approximately 4.5 cm (1.7 in) from the breakout for C101, C200 toward the engine control module (ECM)  | --  | |||||||||||||||||
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 (LLY)  | (CKT 2) In the engine chassis harness, fusible link splice approximately 16 cm (6.3 in) from the underhood fuse block stud  | --  | |||||||||||||||||
S150  | In the engine harness, approximately 2 cm (1 in) from connector C105 to the park brake harness  | --  | |||||||||||||||||
S151  | (CKT 2362) In the engine harness, approximately 10 cm (3.9 in) from the breakout for C102 toward the fuse block - underhood  | --  | |||||||||||||||||
S152  | (CKT 2361) In the engine harness, approximately 11 cm (4.3 in) from the breakout for C102 toward the fuse block - underhood  | --  | |||||||||||||||||
S153 (L18)  | (CKT 2362) In the engine harness, approximately 20 cm (8 in) from the ignition coil - 8 connector  | --  | |||||||||||||||||
S154  | (CKT 2361) In the engine harness, approximately 10 cm (4 in) from the breakout for C123  | --  | |||||||||||||||||
S155 (w/o L18)  | (CKT 2362) In the I/P harness, approximately 12 cm (4.75 in) from the breakout for the engine control module (ECM) toward the fuse block - I/P  | --  | |||||||||||||||||
S156 (L18)  | In the engine harness, approximately 10 cm (4 in) from the powertrain control module (PCM) breakout, toward the engine oil pressure switch breakout  | --  | |||||||||||||||||
S157  | In the I/P harness, approximately 20 cm (8 in) (L18), or 38 cm (15 in) (LG5) from the A/C compressor clutch relay connector  | --  | |||||||||||||||||
S158  | In the I/P harness, approximately 18 cm (7 in) from the branch for the transmission control module (TCM)  | --  | |||||||||||||||||
S160 (L18)  | In the I/P harness, approximately 4 cm (2 in) from the breakout for C121, toward the powertrain control module (PCM) connectors  | --  | |||||||||||||||||
S160  | In the I/P harness, approximately 8 cm (3 in) away from the exterior upfitter AUX WRG connector breakout  | --  | |||||||||||||||||
S161  | (CKT 1121) In the I/P harness, approximately 36 cm (14 in) from C109  | --  | |||||||||||||||||
S162  | (CKT 1120) In the I/P harness, approximately at the generator C1 terminal  | --  | |||||||||||||||||
S163  | (CKT 24) In the engine chassis harness, approximately 38.5 cm (15.2 in) from the breakout for C121 toward the fuse block - underhood  | --  | |||||||||||||||||
S164 (LLY)  | (CKT 2834) In the engine chassis harness, approximately 260 cm (10.2 in) from the breakout for the engine control module (ECM)  | --  | |||||||||||||||||
S165 (LLY)  | (CKT 2530) In the engine chassis harness, approximately 305 cm (12 in) from the breakout for the engine control module (ECM)  | --  | |||||||||||||||||
S165 (L18)  | (CKT 250) In the engine chassis harness  | --  | |||||||||||||||||
S166 (LLY)  | (CKT 508) In the engine chassis harness, approximately 24 cm (9.5 in) from C124  | --  | |||||||||||||||||
S166 (L18)  | (CKT 250) In the engine harness  | --  | |||||||||||||||||
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  | --  | |||||||||||||||||
S171 (LLY)  | (CKT 2361) In the engine harness  | --  | |||||||||||||||||
S172 (LLY)  | (CKT 2362) In the engine harness  | --  | |||||||||||||||||
S173 (LLY)  | (CKT 5764) In the engine chassis harness, approximately 6 cm (2.4 in) before the breakout to the ECM connectors  | --  | |||||||||||||||||
S174 (LLY)  | (CKT 5746) In the engine chassis harness, approximately 11 cm (4.3 in) from C119  | --  | |||||||||||||||||
S175 (Allison® LCT)  | (CKT 150) In the internal transmission harness  | --  | |||||||||||||||||
S176 (Allison® LCT)  | (CKT 250) In the internal transmission harness  | --  | |||||||||||||||||
S177 (Allison® LCT)  | (CKT 407) In the internal transmission harness  | --  | |||||||||||||||||
S184 (L18)  | (CKT 539) In the engine chassis harness  | --  | |||||||||||||||||
S185 (L18)  | (CKT 539) In the engine chassis harness  | --  | |||||||||||||||||
S186 (L18)  | (CKT 539) 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  | --  | |||||||||||||||||
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  | (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  | (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  | --  | |||||||||||||||||
S227  | In the body harness, approximately 7 cm (3 in) from the breakout for connector C200 toward the driver door jamb switch breakout  | --  | |||||||||||||||||
S229  | (CKT 440) In the I/P harness, approximately 40 cm (15.75 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  | (CKT 1451) In the I/P harness, approximately 9 cm (3.5 in) from the breakout for the engine control module (ECM) toward the fuse block - I/P  | --  | |||||||||||||||||
S234  | In the I/P harness, approximately 12 cm (5 in) from pass-through P100 toward C200  | --  | |||||||||||||||||
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  | --  | |||||||||||||||||
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  | In the cross body harness, approximately 18 cm (7 in) from the IPC connector breakout toward the convenience center  | --  | |||||||||||||||||
S242  | In the rear chassis harness, approximately 7 cm (3 in) into the outside heated mirror switch breakout  | --  | |||||||||||||||||
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  | --  | |||||||||||||||||
S246  | In the I/P extension harness, approximately 14 cm (6 in) from the breakout for the mode actuator toward the breakout for the air temperature actuator jumper harness connector  | --  | |||||||||||||||||
S247  | 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 2509) In the I/P switchbank harness, approximately 26.5 cm (10.4 in) from the I/P harness connector  | --  | |||||||||||||||||
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 harness, 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  | (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  | In the I/P harness, approximately 8 cm (3 in) from the upfitter accessory feed connector breakout, toward the IPC connector breakout  | --  | |||||||||||||||||
S257  | (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  | In the I/P extension 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  | (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  | 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  | 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  | --  | |||||||||||||||||
S271  | In the I/P harness, approximately 15 cm (6 in) from the data link connector breakout toward C200  | --  | |||||||||||||||||
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  | --  | |||||||||||||||||
S275  | (CKT 2362) In the engine harness, approximately 4 cm (1.6 in) from the C121 breakout toward the engine control module (ECM)  | --  | |||||||||||||||||
S276  | (CKT 2361) In the engine harness, approximately 3 cm (1.2 in) from the C121 breakout toward the engine control module (ECM)  | --  | |||||||||||||||||
S277  | (CKT 2362) In the I/P harness, approximately 6 cm (2 in) from the turn signal/hazard flasher module  | --  | |||||||||||||||||
S278  | (CKT 2361) In the I/P harness, approximately 6 cm (2 in) from the turn signal/hazard flasher module  | --  | |||||||||||||||||
S279  | (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  | (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  | --  | |||||||||||||||||
S281 (LG4)  | (CKT 2362) In the I/P harness, approximately 11 cm (4 in) from the breakout for the stop lamp switch interface module, toward the convenience center  | --  | |||||||||||||||||
S282 (LG4)  | (CKT 2361) In the I/P harness, approximately 11 cm (4 in) from the breakout for the stop lamp switch interface module, toward the convenience center  | --  | |||||||||||||||||
S283  | In the I/P harness, approximately 5 cm (2 in) from the breakout for C205 to the dome lamp/rear speakers  | --  | |||||||||||||||||
S284  | (CKT 488) In the I/P harness, approximately 24 cm (9.5 in) from the breakout to the air temperature actuator jumper harness connector  | --  | |||||||||||||||||
S286  | (CKT 84) 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  | --  | |||||||||||||||||
S300  | (CKT 540) In the cross body harness, approximately 5 cm (2 in) to the rear of the ground block breakout  | --  | |||||||||||||||||
S301  | In the body harness, approximately 10 cm (4 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  | In the body harness, approximately 8 cm (3 in) from the breakout for C123 toward the manifold absolute pressure (MAP) sensor and exhaust gas recirculation (EGR) valve (L18), or 19 cm (7 in) for all others  | --  | |||||||||||||||||
S302 (Crew Cab)  | (CKT 550) In the body/roof harness, approximately 8 cm (3 in) before the left door harness connector breakout  | --  | |||||||||||||||||
S303 (L18)  | In the exhaust brake harness, approximately 11 cm (4 in) from the powertrain control module (PCM) 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  | In the backup lamp harness, approximately 30 cm (12 in) from the breakout for C412 toward the heated moisture ejector valve  | --  | |||||||||||||||||
S314 (L18)  | In the backup lamp harness, approximately 11 cm (4 in) from the powertrain control module (PCM) connector  | --  | |||||||||||||||||
S315 (L18)  | In the rear chassis harness, approximately resistor splice, 11 cm (4 in) from the powertrain control module (PCM) connector  | --  | |||||||||||||||||
S316  | In the rear chassis harness, approximately 5 cm (2 in) from the left fuel pump and sender assembly breakout  | --  | |||||||||||||||||
S317  | In the cross body harness, approximately 11 cm (4 in) from the transmission control module connector  | --  | |||||||||||||||||
S318  | In the engine harness, approximately 5 cm (2 in) forward of the breakout for the two speed rear axle shift relay  | --  | |||||||||||||||||
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 (Crew Cab)  | (CKT 328) In the body/roof harness, approximately 23 cm (9 in) before the left door harness connector breakout  | --  | |||||||||||||||||
S323  | In the body harness, approximately 3 cm (1 in) from the right door lock actuator  | --  | |||||||||||||||||
S324 (w/o Crew Cab)  | (CKT 1139) In the body/roof harness, approximately 17 cm (7 in) from I/P harness connector C203  | --  | |||||||||||||||||
S324 (Crew Cab)  | (CKT 1139) In the body/roof harness, approximately 22 cm (9 in) from the breakout for C203  | --  | |||||||||||||||||
S325 (w/o Crew Cab)  | (CKT 156) In the body/roof harness, approximately 7 cm (3 in) before the console harness connector and dome/marker lamps breakouts  | --  | |||||||||||||||||
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  | In the cross body harness, approximately 44 cm (17 in) from the radio connector breakout toward the I/P fuse block breakout  | --  | |||||||||||||||||
S330  | In the body harness, approximately 16 cm (6 in) or 30 cm (12 in) from the A/T shift lever connector  | --  | |||||||||||||||||
S331  | In the engine harness, approximately 40 cm (16 in) from P100 toward the bank 1 HO2S (L18), or 60 cm (24 in) from the fuel heater breakout toward the engine oil pressure gage sensor breakout  | --  | |||||||||||||||||
S332  | (CKT 2361) In the I/P harness, approximately 4 cm (1.5 in) from the breakout for the engine control module (ECM) toward the fuse block - I/P  | --  | |||||||||||||||||
S333  | In the engine harness, approximately 11 cm (4 in) from the transmission control module (TCM) connector  | --  | |||||||||||||||||
S334  | In the I/P harness, approximately 3 cm (1 in) from the window actuator motor breakout toward the pass through  | --  | |||||||||||||||||
S335 (w/o Crew Cab)  | (CKT 40) In the body/roof harness, approximately 20 cm (8 in) before the console harness connector and dome/marker lamps breakouts  | --  | |||||||||||||||||
S335 (Crew Cab)  | (CKT 40) In the body/roof harness, approximately 13 cm (5 in) before the left door harness connector breakout  | --  | |||||||||||||||||
S400  | In the right power window harness, approximately 3 cm (1 in) from the driver window switch  | --  | |||||||||||||||||
S401  | In the rear chassis harness, approximately 5 cm (2 in) from the right door lock actuator  | --  | |||||||||||||||||
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  | In the rear chassis harness, approximately 8 cm (3 in) from the breakout for fuel injector 5  | --  | |||||||||||||||||
S405  | In the engine harness, approximately 7 cm (3 in) from the breakout for fuel injector 6  | --  | |||||||||||||||||
S406  | In the rear chassis harness, approximately 4 cm (2 in) from the underhood fuse block breakout, toward the windshield wiper motor breakout  | --  | |||||||||||||||||
S407 (L18/Dual Tanks)  | (CKT 470) In the fuel tank harness, approximately 73 cm (29 in) from P100 toward the breakout for the powertrain control module (PCM)  | --  | |||||||||||||||||
S407 (C5/L18/Dual Tanks)  | (CKT 120) In the fuel tank harness  | --  | |||||||||||||||||
S408 (C5/C6)  | (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  | In the tail lamp harness, approximately 7 cm (3 in) from the coolant level switch breakout, toward the engine coolant temperature switch  | --  | |||||||||||||||||
S411 (L18)  | (CKT 1928) In the tail lamp harness, approximately 71 cm (28 in) from P100 toward the breakout for the powertrain control module (PCM)  | --  | |||||||||||||||||
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  | --  | |||||||||||||||||
S414  | In the I/P harness, approximately 23 cm (9 in) from connector C210, toward the breakout for the convenience center  | --  | |||||||||||||||||
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  | --  | |||||||||||||||||
S420 (C8/L18/Dual Tanks)  | (CKT 120) In the fuel tank harness  | --  | |||||||||||||||||
S421 (K16)  | (CKT 350) In the air compressor 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 501) In the driver door harness, approximately 9 cm (4 in) from the park brake pressure sensor connector  | --  | |||||||||||||||||
S502 (AU3/A31)  | (CKT 201) In the driver door harness, approximately 3 cm (1 in) from the window actuator motor breakout toward the pass through  | --  | |||||||||||||||||
S503 (AU3/A31)  | (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  | --  | |||||||||||||||||
S504  | (CKT 1499) In the driver door harness, approximately 4.5 cm (1.75 in) from the breakout for the outside rearview mirror (OSRVM) connector toward the OSRVM connector  | --  | |||||||||||||||||
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  | --  | |||||||||||||||||
S506  | In the driver door harness, approximately 3 cm (1 in) from the driver window switch  | --  | |||||||||||||||||
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 (AU3/A31)  | (CKT 200) In the front passenger door harness, approximately 30 cm (12 in) from the breakout for the speaker - RF door toward C500  | --  | |||||||||||||||||
S603 (AU3/A31)  | (CKT 117) In the front passenger door harness, approximately 20 cm (8 in) from the breakout for the speaker - RF door toward C500  | --  | |||||||||||||||||
S604  | (CKT 1497) In the front passenger door harness, approximately 4.5 cm (1.75 in) from the breakout for the outside rearview mirror-passenger between the breakout and the connector  | --  | |||||||||||||||||
S605  | In the right power door lock harness, approximately 11 cm (1 in) from the right door lock actuator  | --  | |||||||||||||||||
S700  | In the left rear door harness, approximately 11 cm (1 in) from the window switch  | --  | |||||||||||||||||
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  |