GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

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

HVAC Connector End Views

A/C High Pressure Switch (C60)

At the right front, behind the front bumper, on the top of A/C condenser receiver/dryer

HVAC Component Views

HVAC Connector End Views

A/C-Wiper Diode

In the lower I/P harness, behind the lower center of the I/P, part of splice pack SP201, taped to the harness between the windshield wiper motor breakout and the bulkhead connector C200, behind the radio, pins A2, B2 and C2

Harness Routing Views

Splice Pack Connector End Views

ABS Relay (JE4)

On the front chassis harness, behind the cab at the cab bridge, mounted to the bottom of the radiator surge tank

Air Antilock Brake System Component Views

Air Antilock Brake System Connector End Views

Accelerator Pedal Position (APP) Sensor

Behind the left side of the I/P, right of the steering column, above the accelerator pedal

Engine Controls Component Views

Engine Controls Connector End Views

Air Brake Dryer (JE4 and JTU)

On the left side of the frame in the component box

Air Brake System Component Views

Air Brake System Connector End Views

Air Brake Pressure Gage Lamp (JE4)

On the left side of the I/P, left of the IPC and below the driver information center (DIC), in the air brake pressure gage

Lighting Systems Component Views

Lighting Systems Connector End Views

Air Compressor (K16)

Behind the cab at the outboard left frame rail, inboard of and above the fuse block assembly enclosure

Auxiliary Air Compressor Component Views

Auxiliary Air Compressor Connector End Views

Air Compressor Relay (K16)

Behind the cab at the outboard left frame rail, inboard of and above the fuse block assembly enclosure, in the air compressor harness

Auxiliary Air Compressor Component Views

Auxiliary Air Compressor Connector End Views

Air Suspension Dump Indicator (G40/G45/GSJ)

In the top of the center console

Air Suspension Component Views

Air Suspension Connector End Views

Air Suspension Dump Switch (G40/G45/GSJ)

In the top of the center console

Air Suspension Component Views

Air Suspension Connector End Views

Air Suspension Dump Valve Solenoid (G40/G45/GSJ)

On the inboard right frame rail, rear of the axle, in the air suspension dump valve

Air Suspension Component Views

Air Suspension Connector End Views

Air Temperature Actuator

Behind the lower right side of the I/P, near the blower motor, on the front of the HVAC module

HVAC Component Views

HVAC Connector End Views

Antenna

On the exterior upper left A-pillar

--

--

Auto Cruise Switch (K34)

Center of the I/P, in the switch panel

Cruise Control Component Views

Cruise Control Connector End Views

Auto Cruise Switch/PTO Switch Diode

In the lower I/P harness, behind the lower center of the I/P, taped to the harness between the windshield wiper motor breakout and bulkhead connector C200, behind the radio

Cruise Control Component Views

Cruise Control Connector End Views

Automatic Transmission Input Shaft Speed (AT ISS) Sensor (A/T)

On the upper left side of the transmission, on the transmission bell housing

Automatic Transmission Electronic Component Views

Automatic Transmission Related Connector End Views

Automatic Transmission Input Shaft Speed (AT ISS) Sensor (A/T)

On the lower right side of the transmission, on the transmission bell housing

Automatic Transmission Electronic Component Views

Automatic Transmission Related Connector End Views

Automatic Transmission Shift Lever Position Indicator (A/T)

In the center console, part of the automatic transmission shift lever

Lighting Systems Component Views

Lighting Systems Connector End Views

Automatic Transmission Shift Selector (A/T)

On the left side of the center console housing, at the top

Automatic Transmission Electronic Component Views

Automatic Transmission Related Connector End Views

Auxiliary Power Post (-)

In the center console

Power Outlet Component Views

--

Auxiliary Power Post (+)

In the center console

Power Outlet Component Views

--

Backup Alarm (UZF)

On the back of the rear crossmember, on a bracket

Lighting Systems Component Views

Lighting Systems Connector End Views

Backup Lamp - Left

At the rear of the left frame rail, part of the tail lamp assembly - left

Lighting Systems Component Views

Lighting Systems Connector End Views

Backup Lamp - Right

At the rear of the right frame rail, part of the tail lamp assembly - right

Lighting Systems Component Views

Lighting Systems Connector End Views

Backup Lamp Switch (A/T)

On the lower left side of the transmission, part of the park/neutral position (PNP) switch

Lighting Systems Component Views

Lighting Systems Connector End Views

Backup Lamp Switch (A/T)

Internal to the automatic transmission

Lighting Systems Component Views

Lighting Systems Connector End Views

Backup Lamp Switch (M/T)

On the top forward right side of the transmission cover

Lighting Systems Component Views

Lighting Systems Connector End Views

Battery - Inboard

On the outboard side of the right frame rail, in the battery box

Power and Grounding Component Views

--

Battery - Outboard

On the outboard side of the right frame rail, in the battery box

Power and Grounding Component Views

--

Blower Motor (C40/C60)

Behind the lower right side of the I/P

HVAC Component Views

HVAC Connector End Views

Blower Motor Resistor Assembly (C40/C60)

Behind the lower right side of the I/P, on the front of the blower case, left of the blower motor

HVAC Component Views

HVAC Connector End Views

Blower Motor Switch (C40/C60)

In the center of the I/P, above the radio, mounted in the HVAC control assembly

HVAC Component Views

HVAC Connector End Views

Brake Fluid Level Switch (JE3)

At the front of the vehicle, behind the front bumper right side, on the front of the brake master cylinder reservoir

Hydraulic Brake Component Views

Hydraulic Brake Connector End Views

Brake Pressure Modulator Valve (BPMV) - LF (JE4)

On the left rear side of the front crossmember

Air Antilock Brake System Component Views

Air Antilock Brake System Connector End Views

Brake Pressure Modulator Valve (BPMV) - LR (JE4)

On the left side of the crossmember forward of the rear axle

Air Antilock Brake System Component Views

Air Antilock Brake System Connector End Views

Brake Pressure Modulator Valve (BPMV) - RF (JE4)

On the right rear side of the front crossmember

Air Antilock Brake System Component Views

Air Antilock Brake System Connector End Views

Brake Pressure Modulator Valve (BPMV) - RR (JE4)

On the right side of the crossmember forward of the rear axle

Air Antilock Brake System Component Views

Air Antilock Brake System Connector End Views

Camshaft Position (CMP) Sensor

On the back end of the cylinder head

Engine Controls Component Views

Engine Controls Connector End Views

Chime Module

Under the passenger seat, at the front, mounted on the back of the seat stand cover

Displays and Gages Component Views

Displays and Gages Connector End Views

Cigar Lighter

In the center of the I/P, right of the radio

Power Outlet Component Views

Power Outlet Connector End Views

Cigar Lighter Lamp

In the center of the I/P, left of the radio

Lighting Systems Component Views

Lighting Systems Connector End Views

Clearance Lamp - Left

On top of the roof, on the forward left outboard side of the cab

Lighting Systems Component Views

Lighting Systems Connector End Views

Clearance Lamp - Right

On top of the roof, on the forward right outboard side of the cab

Lighting Systems Component Views

Lighting Systems Connector End Views

Clutch Pedal Position (CPP) Switch (M/T)

Behind the left side of the I/P, left of the steering column, on the clutch pedal support bracket, at the beginning of clutch pedal travel

Manual Transmission Component Views

Manual Transmission Connector End Views

Clutch Start Switch (M/T)

Behind the left side of the I/P, left of the steering column, on the clutch pedal support bracket, at the end of clutch pedal travel

Engine Electrical Component Views

Engine Electrical Connector End Views

Condenser Fan Motor

At the lower right front of the vehicle, in front of the tire, behind the A/C condenser

HVAC Component Views

HVAC Connector End Views

Controller Area Network (CAN) Connector

On the lower left side of the I/P, left of the steering column, by the data link connector (DLC)

Data Communication Component Views

Data Communication Connector End Views

Coolant Level Switch

Behind the cab at the cab bridge, on the bottom of the radiator surge tank

Cooling System Component Views

Cooling System Connector End Views

Crankshaft Position (CKP) Sensor (A/T)

On the top center of the flywheel housing

Engine Controls Component Views

Engine Controls Connector End Views

Crankshaft Position (CKP) Sensor (M/T)

On the lower left front of the flywheel housing

Engine Controls Component Views

Engine Controls Connector End Views

Cruise Control Set/Coast Switch (K34)

On the left side of the steering column, controlled by the turn signal/multifunction lever, part of the turn signal/multifunction switch

Cruise Control Component Views

Cruise Control Connector End Views

Data Link Resistor 1

In the front chassis harness, taped to the harness, near the left inboard frame rail next to the radiator fan

Harness Routing Views

Data Communication Connector End Views

Data Link Resistor 2

In the lower I/P harness, under the passenger seat, near the chime module, taped to the harness

Harness Routing Views

Data Communication Connector End Views

Data Link Resistor 3

In the lower I/P harness, under left side of the I/P, taped to the harness

Harness Routing Views

Data Communication Connector End Views

Data Link Connector (DLC)

On the lower left side of the I/P, left of the steering column

Data Communication Component Views

Data Communication Connector End Views

Data Recorded Module (LF8)

Under passenger seat, near CHIME module

Data Communication Component Views

Data Communication Connector End Views

Diesel Particulate Filter (DPF) Exhaust Temperature Sensor 1 (LF8)

On the right side of the vehicle center in front of the catalytic converter

Engine Controls Component Views

Engine Controls Connector End Views

Diesel Particulate Filter (DPF) Exhaust Temperature Sensor 2 (LF8)

On the right side of the vehicle center in front of the catalytic converter

Engine Controls Component Views

Engine Controls Connector End Views

Diesel Particulate Filter (DPF) Pressure Sensor (LF8)

On the right side of vehicle center area

Engine Controls Component Views

Engine Controls Connector End Views

Differential Lock Control Valve (HNB, HPL or HPN)

On the front of the crossmember in front of the rear axle

Rear Axle Component Views

Rear Axle Connector End Views

Differential Lock Switch (HNB, HPL or HPN)

In the top of the center console

Rear Axle Component Views

Rear Axle Connector End Views

Dome Lamp

In the interior center of the roof

Lighting Systems Component Views

Lighting Systems Connector End Views

Dome Lamp Diode

In the lower I/P harness, behind the lower center of the I/P, part of splice pack SP201, taped to the harness between the windshield wiper motor breakout and bulkhead, pins G2, H2, J2 and K2

Harness Routing Views

Splice Pack Connector End Views

Door Jamb Switch - Driver

In the left front door frame, at the rear face of the opening

Lighting Systems Component Views

Lighting Systems Connector End Views

Driver Information Center (DIC)

On the left side of the I/P, left of the IPC

Displays and Gages Component Views

Displays and Gages Connector End Views

DRL Engine Run Diode

In the lower I/P harness, behind the lower center of the I/P, part of splice pack SP201, taped to the harness between the windshield wiper motor breakout and the bulkhead connector C200, behind the radio, pins G1, H1, J1 and K1

Harness Routing Views

Splice Pack Connector End Views

DRL Indicator Diode

In the lower I/P harness, taped to the harness, behind the lower center of the I/P, part of splice pack SP201, between the windshield wiper motor breakout and the bulkhead, pins D1, E1 and F1

Harness Routing Views

Splice Pack Connector End Views

DRL Indicator Relay

In the lower I/P harness, behind the lower right side of the I/P, near the blower motor, on the relay bracket, position 4

Lighting Systems Component Views

Lighting Systems Connector End Views

DRL Off Relay

In the lower I/P harness, behind the lower right side of the I/P, near the blower motor, on the relay bracket, position 3

Lighting Systems Component Views

Lighting Systems Connector End Views

DRL On Diode

In the lower I/P harness, behind the lower center of the I/P, part of splice pack SP201, taped to the harness between the windshield wiper motor breakout and bulkhead, pins A1, B1, and C1

Harness Routing Views

Splice Pack Connector End Views

DRL On Relay

In the lower I/P harness, behind the lower right side of the I/P, near the blower motor, on the relay bracket, position 2

Lighting Systems Component Views

Lighting Systems Connector End Views

DRL Resistor

In the lower I/P harness, at the data link connector (DLC) breakout, behind the IPC

Harness Routing Views

Lighting Systems Connector End Views

Electronic Brake Control Module (EBCM) (JE3)

Behind center of the front bumper

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Electronic Brake Control Module (EBCM) (JE4)

Behind center of the front bumper

Air Antilock Brake System Component Views

Air Antilock Brake System Connector End Views

Engine Control Module (ECM)

On top of the left front frame rail, forward of the cab bridge, left of the engine

Engine Controls Component Views

Engine Control Module Connector End Views

Engine Coolant Temperature (ECT) Sensor

On the upper left side of the engine, in the cylinder head, below the coolant inlet

Engine Controls Component Views

Engine Controls Connector End Views

Engine Oil Level Switch

On the lower left side of the engine, near the center, in the oil pan

Engine Controls Component Views

Engine Controls Connector End Views

Engine Oil Pressure (EOP) Sensor

On the lower right side of the engine, toward the front

Engine Controls Component Views

Engine Controls Connector End Views

Evaporator Temperature Sensor (C60)

At the front right of the exterior cab, behind the inspection panel, in the A/C evaporator housing

HVAC Component Views

HVAC Connector End Views

Exhaust Brake Actuator Control Solenoid Valve (K40 or NPE)

On the inboard right frame rail, forward of the second crossmember, by the batteries

Exhaust System Component Views

Exhaust System Connector End Views

Exhaust Brake Relay (K40 or NPE)

In the lower center of the I/P, behind the access panel, attached to the left side of relay block 2, in the center position

Exhaust System Component Views

Exhaust System Connector End Views

Exhaust Brake Switch (K40)

On the center of the I/P, right of the IPC

Exhaust System Component Views

Exhaust System Connector End Views

Exhaust Gas Recirculation (EGR) Valve

On the upper left side of the engine, center, on the intake manifold, behind secondary fuel filter

Engine Controls Component Views

Engine Controls Connector End Views

Exhaust Gas Recirculation (EGR) Temperature Sensor (LF8)

On the left side of the engine, below the EGR valve, behind the secondary fuel filter

Engine Controls Component Views

Engine Controls Connector End Views

Exhaust Temperature Sensor (LF8)

On the right side of top of the engine, behind A/C compressor, in the EGR inner cooler pipes.

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Heater (C30)

On the lower left side of the engine, part of the secondary fuel filter

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Heater Relay (C30)

In the lower I/P harness, behind the lower right side of the I/P, near the blower motor, on the relay bracket, position 5

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Injector 1

On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 1

Engine Controls Component Views

--

Fuel Injector 2

On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 2

Engine Controls Component Views

--

Fuel Injector 3

On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 3

Engine Controls Component Views

--

Fuel Injector 4

On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 4

Engine Controls Component Views

--

Fuel Injector 5

On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 5

Engine Controls Component Views

--

Fuel Injector 6

On the upper left side of the engine, in the cylinder head, under the valve cover, at cylinder 6

Engine Controls Component Views

--

Fuel Rail Pressure (FRP) Sensor

On the rear left side of the engine, on the injection pump

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Sender (NG7, NJ7, NK6, NJ8, NNQ or NNV)

On the outboard side of the left frame rail, in the top of the fuel tank

Displays and Gages Component Views

Displays and Gages Connector End Views

Fuel Sender - Secondary (NG7, NJ7, NJ8 or NNQ)

On the outboard side of the right frame rail, in the top of the fuel tank

Displays and Gages Component Views

Displays and Gages Connector End Views

Fuel Temperature Sensor

On the lower left side of the engine, at the rear, on the fuel injection pump

Engine Controls Component Views

Engine Controls Connector End Views

Fuse Block - I/P - 1

In the right top of the I/P, under the access panel

Power and Grounding Component Views

Electrical Center Identification Views

Fuse Block - I/P - 2

In the right top of the I/P, under the access panel

Power and Grounding Component Views

Electrical Center Identification Views

Fuse Block - 1

Behind the cab at the outboard left frame rail, under a cover, on top of the front chassis harness fuse block bracket, in the fuse box, rear

Power and Grounding Component Views

Electrical Center Identification Views

Fuse Block - 2

Behind the cab at the outboard left frame rail, under a cover, on top of the front chassis harness fuse block bracket, in the fuse box, front

Power and Grounding Component Views

Electrical Center Identification Views

Fusible Link 1

In the front chassis harness, from the positive battery ring terminal to C402

Harness Routing Views

--

Fusible Link 2

In the front chassis harness, from the positive battery ring terminal to C402

Harness Routing Views

--

Fusible Link 3

In the front chassis harness, from the positive battery ring terminal to C400

Harness Routing Views

--

Fusible Link 4

In the front chassis harness, from the positive battery ring terminal to C400

Harness Routing Views

--

Generator

At the right side of the engine

Engine Electrical Component Views

Engine Electrical Connector End Views

Glow Plug 1

On the upper left side of the engine, in the cylinder head, at cylinder 1

Engine Controls Component Views

--

Glow Plug 2

On the upper left side of the engine, in the cylinder head, at cylinder 2

Engine Controls Component Views

--

Glow Plug 3

On the upper left side of the engine, in the cylinder head, at cylinder 3

Engine Controls Component Views

--

Glow Plug 4

On the upper left side of the engine, in the cylinder head, at cylinder 4

Engine Controls Component Views

--

Glow Plug 5

On the upper left side of the engine, in the cylinder head, at cylinder 5

Engine Controls Component Views

--

Glow Plug 6

On the upper left side of the engine, in the cylinder head, at cylinder 6

Engine Controls Component Views

--

Glow Plug Bus 1

On the upper left side of the engine, on the cylinder head, connects glow plugs 1, 2 and 3 to glow plug bus 2

--

--

Glow Plug Bus 2

On the upper left side of the engine, on the cylinder head, connects glow plugs 4, 5 and 6 to glow plug bus 1

--

--

Glow Plug Control Module (GPCM)

On the left front side of engine, below EGR valve

Engine Controls Component Views

Engine Controls Connector End Views

Glow Plug Relay

Behind the left side of the I/P, attached to the inspection panel release mounting bracket, above hood release lever

Engine Controls Component Views

Engine Controls Connector End Views

Hazard Switch

On the right side of the steering column, controlled by the multifunction lever, part of the turn signal/multifunction switch

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamp - High Beam - Left

On the left front of the cab

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamp - High Beam - Right

On the right front of the cab

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamp - Low Beam - Left

On the left front of the cab

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamp - Low Beam - Right

On the right front of the cab

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamp Dimmer Switch

On the left side of the steering column, controlled by the turn signal/multifunction lever, part of the turn signal/multifunction switch

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamp Switch

On the left side of the steering column, controlled by the turn signal/multifunction lever, part of the turn signal/multifunction switch

Lighting Systems Component Views

Lighting Systems Connector End Views

High Idle Switch (UF3)

On the center of the I/P, right of the IPC

Engine Controls Component Views

Engine Controls Connector End Views

Horn (w/o U08)

On the front of the vehicle, behind the left side of the front bumper impact bar

Horn Component Views

Horn Connector End Views

Horn, A-Note (U08)

On the front of the vehicle, behind the left side of the front bumper impact bar

Horn Component Views

Horn Connector End Views

Horn, F-Note (U08)

On the front of the vehicle, behind the left side of the front bumper impact bar

Horn Component Views

Horn Connector End Views

Horn Switch

In the steering column, under the steering wheel horn cap and cover assembly, part of the turn signal/multifunction switch

Horn Component Views

Lighting Systems Connector End Views

HVAC Control Assembly

In the center of the I/P, above the radio

HVAC Component Views

HVAC Connector End Views

Hydromax Fuse (JE3)

Above the left frame rail, on the cab bridge harness bracket, below the coolant reservoir

Hydraulic Brake Component Views

Hydraulic Brake Connector End Views

I/P Dimmer Switch

On the left side of the I/P, in the instrument panel cluster (IPC)

Lighting Systems Component Views

Lighting Systems Connector End Views

Identification (ID) Lamp - Center

On top of the roof, on the forward center of the cab

Lighting Systems Component Views

Lighting Systems Connector End Views

Identification (ID) Lamp - Left

On top of the roof, on the forward left side of the cab, the inboard lamp

Lighting Systems Component Views

Lighting Systems Connector End Views

Identification (ID) Lamp - Right

On top of the roof, on the forward right side of the cab, the inboard lamp

Lighting Systems Component Views

Lighting Systems Connector End Views

Ignition Switch

On the right side of the steering column, behind the steering wheel assembly

Power and Grounding Component Views

Power and Grounding Connector End Views

Instrument Panel Cluster (IPC)

On the left side of the I/P

Displays and Gages Component Views

Displays and Gages Connector End Views

Intake Manifold Air (IMA) Temperature Sensor (LF8)

On the left side, in the center area of the engine

Engine Controls Component Views

Engine Controls Connector End Views

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

Air Brake System Component Views

Air Brake System Connector End Views

Low Air Pressure Switch - Secondary (JE4)

On the left end of the rear axle (secondary) service (air supply) reservoir, inboard of the left frame rail

Air Brake System Component Views

Air Brake System Connector End Views

Low Air Pressure Switch (JE3 and K16 or JE4 and KK3)

Inboard of the left frame rail, on the front end of the primary air supply reservoir

Air Brake System Component Views

Air Brake System Connector End Views

Low Air Pressure Switch (JE3 and K16)

Inboard of the left frame rail, on the front end of the primary air supply reservoir

Auxiliary Air Compressor Component Views

Auxiliary Air Compressor Connector End Views

Manifold Absolute Pressure (MAP) Sensor

On the upper left side of the engine, on the top rear of the intake manifold air inlet elbow

Engine Controls Component Views

Engine Controls Connector End Views

Marker Lamp Switch (JE4 and RQ2 and U86 or JE4 and RQ3)

On the center of the I/P, right of the IPC

Lighting Systems Component Views

Lighting Systems Connector End Views

Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor

By the outboard right frame rail, behind the air cleaner, on the upper front of the air intake elbow

Engine Controls Component Views

Engine Controls Connector End Views

Mode Actuator

Behind the lower right side of the I/P, on the bottom of the blower case

HVAC Component Views

HVAC Connector End Views

Neutral Relay (A/T)

In the transmission cab harness, under the passenger seat, on the top left front edge of the seat bracket, position 2

Engine Electrical Component Views

Engine Electrical Connector End Views

Oil Level Sensor (A/T)

Internal to the automatic transmission

--

--

Outside Heated Mirror Switch (DNN)

On the center of the I/P, right of the IPC

Mirror Component Views

Mirror Connector End Views

Outside Rearview Mirror - Driver (DNA)

On the exterior side of the left door

Mirror Component Views

Mirror Connector End Views

Outside Rearview Mirror - Passenger (DNA)

On the exterior side of the right door

Mirror Component Views

Mirror Connector End Views

Overdrive (OD) Defeat Switch (A/T)

On the center of the I/P, right of the IPC

Automatic Transmission Electronic Component Views

Automatic Transmission Related Connector End Views

Overdrive Diode (A/T)

In the transmission cab harness, under the passenger seat, near the transmission control module (TCM), taped to the harness breakout near the TCM

Automatic Transmission Electronic Component Views

Automatic Transmission Related Connector End Views

Park Brake Indicator/Park Brake Switch Diode (JE3)

In the lower I/P harness, behind the lower center of the I/P, taped to the harness between the windshield wiper motor breakout and bulkhead connector C200, behind the radio

Lighting Systems Component Views

Lighting Systems Connector End Views

Park Brake Relay

In the lower I/P harness, behind the lower right side of the I/P, near the blower motor, on the relay bracket, position 1

Lighting Systems Component Views

Lighting Systems Connector End Views

Park Brake Switch (JE3)

In the center console, on the park brake lever bracket

Lighting Systems Component Views

Hydraulic Brake Connector End Views

Park Brake Switch (JE4)

In the center of the I/P, below the radio

Lighting Systems Component Views

Air Brake System Connector End Views

Park/Turn Signal Lamp - LF

On the front of the vehicle, above the left front bumper, mounted to a bracket

Lighting Systems Component Views

Lighting Systems Connector End Views

Park/Turn Signal Lamp - RF

On the front of the vehicle, above the right front bumper, mounted to a bracket

Lighting Systems Component Views

Lighting Systems Connector End Views

Power Brake (P/B) Booster Fluid Flow Switch (JE3)

At the front of the vehicle, behind the bumper center of the vehicle

Hydraulic Brake Component Views

Hydraulic Brake Connector End Views

Power Brake (P/B) Booster Pump Motor (JE3)

At the front of the vehicle, behind the center of the bumper, on the brake master cylinder

Hydraulic Brake Component Views

Hydraulic Brake Connector End Views

Power Brake (P/B) Booster Pump Relay (JE3)

In the front chassis harness, above the left frame rail, on the cab bridge harness bracket, below the coolant reservoir

Hydraulic Brake Component Views

Hydraulic Brake Connector End Views

Power Take-Off Switch (PTO)

On the center of the I/P, right of the IPC

Power Take-Off (PTO) Component Views

Power Take-Off (PTO) Connector End Views

PTO Relay

In the lower center of the I/P, behind the access panel, attached to the left side of relay block 2, in the top position

Power Take-Off (PTO) Component Views

Power Take-Off (PTO) Connector End Views

Pressure Control (PC) Solenoid 1 (A/T)

Internal to the automatic transmission

--

Automatic Transmission Internal Connector End Views

Pressure Control (PC) Solenoid 2 (A/T)

Internal to the automatic transmission

--

Automatic Transmission Internal Connector End Views

Pressure Control (PC) Solenoid 3 (MD)

Internal to the automatic transmission

--

Automatic Transmission Internal Connector End Views

Pressure Switch 1 (LCT)

Internal to the automatic transmission, on the pressure switch manifold (PSM)

--

--

Pressure Switch 2 (LCT)

Internal to the automatic transmission, on the pressure switch manifold (PSM)

--

--

Pressure Switch 3 (LCT)

Internal to the automatic transmission, on the pressure switch manifold (PSM)

--

--

Pressure Switch 4 Reverse (LCT)

Internal to the automatic transmission, on the pressure switch manifold (PSM)

--

--

Pressure Switch Manifold (PSM) (LCT)

Internal to the automatic transmission

--

Automatic Transmission Internal Connector End Views

Radio (UM6 or UM7)

In the center of the I/P, below the HVAC control assembly

Entertainment/Communication Component Views

Entertainment/Communication Connector End Views

Rear Axle Driver Control Switch - Two Speed (HPZ and A/T)

On the center of the I/P, right of the IPC

Rear Axle Component Views

Rear Axle Connector End Views

Rear Axle Driver Control Switch - Two Speed (HPZ and M/T)

In front of the center console on the transmission shift lever

Rear Axle Component Views

Rear Axle Connector End Views

Rear Axle Shift Motor - Two Speed (HPZ)

On the front of the rear axle, on the differential

Rear Axle Component Views

Rear Axle Connector End Views

Rear Axle Shift Relay - Two Speed (HPZ)

On the front of the crossmember in front of the rear axle

Rear Axle Component Views

Rear Axle Connector End Views

Rear Compartment Lamp Relay (Z89)

In the lower center of the I/P, behind the access panel, attached to the left side of relay block 2, in the bottom position

Lighting Systems Component Views

Lighting Systems Connector End Views

Rear Compartment Lamp Switch (Z89)

On the left side of the I/P, left of the IPC and below the driver information center (DIC)

Lighting Systems Component Views

Lighting Systems Connector End Views

Recirculation Actuator

Behind the lower right side of the I/P, near the blower motor, on the right side of the HVAC module

HVAC Component Views

HVAC Connector End Views

Relay Block 1

In the right top of the I/P, under the access panel

Power and Grounding Component Views

Electrical Center Identification Views

Relay Block 2

In the lower center of the I/P, behind the access panel

Power and Grounding Component Views

Electrical Center Identification Views

Relay Block 3

In the right side of the I/P, next to the blower motor

Power and Grounding Component Views

Electrical Center Identification Views

Reverse Relay (A/T)

In the transmission cab harness, under the passenger seat, on the top center of the seat bracket, position 1

Lighting Systems Component Views

Lighting Systems Connector End Views

Serial Data Gateway (SDG) Module (JE4 or JE3 w/A/T)

Under the passenger seat, near the front, mounted on the top of the transmission control module (TCM) mounting bracket

Data Communication Component Views

Data Communication Connector End Views

Shift Solenoid 1 (SS1) (A/T)

Internal to the automatic transmission

--

Automatic Transmission Internal Connector End Views

Shift Solenoid 2 (SS2) (A/T)

Internal to the automatic transmission

--

Automatic Transmission Internal Connector End Views

Shift Solenoid 3 (SS3) (A/T)

Internal to the automatic transmission

--

Automatic Transmission Internal Connector End Views

Speaker - Left

On the upper left front of the I/P

Entertainment/Communication Component Views

Entertainment/Communication Connector End Views

Speaker - Right

On the upper right front of the I/P

Entertainment/Communication Component Views

Entertainment/Communication Connector End Views

Starter

On the lower right side of the engine

Engine Electrical Component Views

--

Starter Relay

Behind the cab at the outboard left frame rail, on the outboard rear of the front chassis harness fuse block bracket

Engine Electrical Component Views

Engine Electrical Connector End Views

Starter Solenoid

On the lower right side of the engine, part of the starter

Engine Electrical Component Views

--

Stop Lamp Relay

In the lower I/P harness, behind the lower right side of the I/P, near the blower motor, on the relay bracket, position 6

Lighting Systems Component Views

Lighting Systems Connector End Views

Stop Lamp Switch (JE3)

Behind the left side of the I/P, right of the steering column, at the top of the brake pedal support bracket

Lighting Systems Component Views

Lighting Systems Connector End Views

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

Lighting Systems Connector End Views

Suction Control Valve (SCV)

On the lower left side of the engine, at the rear, on the fuel injection pump

Engine Controls Component Views

Engine Controls Connector End Views

Tail Lamp Assembly - Left

At the rear of the left frame rail

Lighting Systems Component Views

Lighting Systems Connector End Views

Tail Lamp Assembly - Right

At the rear of the right frame rail

Lighting Systems Component Views

Lighting Systems Connector End Views

Tail/Stop and Turn Signal Lamp - Left

At the rear of the left frame rail, part of the tail lamp assembly - left

Lighting Systems Component Views

Lighting Systems Connector End Views

Tail/Stop and Turn Signal Lamp - Right

At the rear of the right frame rail, part of the tail lamp assembly - right

Lighting Systems Component Views

Lighting Systems Connector End Views

Thermo Diode

In the lower I/P harness, behind the lower center of the I/P, part of splice pack SP201, taped to the harness between the windshield wiper motor breakout and bulkhead, pins D2, E2 and F2

Harness Routing Views

Splice Pack Connector End Views

Torque Converter Clutch Solenoid (TCC) (A/T)

Internal to the automatic transmission

--

Automatic Transmission Internal Connector End Views

Traction Control Indicator Resistor (NW9)

In the lower I/P harness, taped to the C200 main bulkhead connector breakout, behind radio, taped to harness

Air Antilock Brake System Component Views for air brakes

or

Antilock Brake System Component Views for hydraulic brakes

Air Antilock Brake System Connector End Views for air brakes

or

Antilock Brake System Connector End Views for hydraulic brakes

Traction Control Switch (NW9)

On the center of the I/P, right of the IPC

Air Antilock Brake System Component Views for air brakes

or

Antilock Brake System Component Views for hydraulic brakes

Air Antilock Brake System Connector End Views for air brakes

or

Antilock Brake System Connector End Views for hydraulic brakes

Traction Control Valve (JE4 and NW9)

On the right side of the crossmember forward of the rear axle

Air Antilock Brake System Component Views

Air Antilock Brake System Connector End Views

Tractor Receptacle (JE4 and RQ3)

Behind the cab, attached to the frame bracket and pogo stick

Lighting Systems Component Views

Lighting Systems Connector End Views

Tractor/Trailer Plug (JE4 and RQ3 and JYV and VPG)

Behind the cab, attached to the frame bracket and pogo stick

Lighting Systems Component Views

Lighting Systems Connector End Views

Trailer Receptacle (JE4 and RQ2 and U86 or JE4 and RQ3)

Attached to rear crossmember

Lighting Systems Component Views

Lighting Systems Connector End Views

Trailer Stop Lamp Relay (JE4, RQ2 and U86 or JE4 and RQ3)

On the left side of the cab bridge, on the relay bracket on the front of the electronic brake control module (EBCM)

Lighting Systems Component Views

Lighting Systems Connector End Views

Trailer Stop Lamp Switch (JE4 and RQ2 and U86 or JE4 and RQ3)

On the left side of the center console housing

Lighting Systems Component Views

Lighting Systems Connector End Views

Transmission Control Module (TCM) (A/T)

Under the passenger seat, mounted under the TCM mounting bracket

Automatic Transmission Electronic Component Views

Automatic Transmission Related Connector End Views

Transmission Fluid Temperature (TFT) Sensor (LCT)

Internal to the automatic transmission, on the pressure switch manifold (PSM)

--

--

Transmission Fluid Temperature (TFT) Sensor (MD)

Internal to the automatic transmission

--

--

Turbine Shaft Speed (TSS) Sensor (LCT)

On the upper left side of the transmission, in front of the transmission bell housing

Automatic Transmission Electronic Component Views

Automatic Transmission Related Connector End Views

Turbine Shaft Speed (TSS) Sensor (MD)

Internal to the automatic transmission

--

--

Turbocharger Vane Position (TVP) Control Solenoid Valve

At the right side of the engine, on the turbocharger behind the intake impeller housing

Engine Controls Component Views

Engine Controls Connector End Views

Turbocharger Vane Position (TVP) Sensor

At the right side of the engine, on the top center of the turbocharger

Engine Controls Component Views

Engine Controls Connector End Views

Turn Signal and Marker Lamp Assembly - Left

In the forward bottom edge of the left door

Lighting Systems Component Views

Lighting Systems Connector End Views

Turn Signal and Marker Lamp Assembly - Right

In the forward bottom edge of the right door

Lighting Systems Component Views

Lighting Systems Connector End Views

Turn Signal/Hazard Flasher Module

Behind the lower right side of the I/P, left of the blower motor

Lighting Systems Component Views

Lighting Systems Connector End Views

Turn Signal/Multifunction Switch

In the steering column, behind the steering wheel assembly

Lighting Systems Component Views

Lighting Systems Connector End Views

Vehicle Speed Sensor (VSS)

On the transmission tailshaft housing

Manual Transmission Component Views for the manual transmission

or

Automatic Transmission Electronic Component Views for the automatic transmission

Manual Transmission Connector End Views for the manual transmission

or

Automatic Transmission Related Connector End Views for the automatic transmission

Water-In-Fuel Sensor (NWB)

Behind the cab at the outboard left frame rail and outboard of the fuse box, on the bottom of the fuel/water separator

Displays and Gages Component Views

Displays and Gages Connector End Views

Wheel Speed Sensor (WSS) - LF (JE3)

At the top rear of the left front brake caliper mounting plate

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Wheel Speed Sensor (WSS) - LF (JE4)

At the top of the left front brake backing plate

Air Antilock Brake System Component Views

Air Antilock Brake System Connector End Views

Wheel Speed Sensor (WSS) - LR (JE3)

At the top rear of the left rear brake caliper mounting plate

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Wheel Speed Sensor (WSS) - LR (JE4)

At the top of the left rear brake backing plate

Air Antilock Brake System Component Views

Air Antilock Brake System Connector End Views

Wheel Speed Sensor (WSS) - LR Middle (JE4 and HPE)

At the top of the left rear middle brake backing plate

Air Antilock Brake System Component Views

Air Antilock Brake System Connector End Views

Wheel Speed Sensor (WSS) - RF (JE3)

At the top rear of the right front brake caliper mounting plate

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Wheel Speed Sensor (WSS) - RF (JE4)

At the top of the right front brake backing plate

Air Antilock Brake System Component Views

Air Antilock Brake System Connector End Views

Wheel Speed Sensor (WSS) - RR (JE3)

At the top rear of the right rear brake caliper mounting plate

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Wheel Speed Sensor (WSS) - RR (JE4)

At the top of the right rear brake backing plate

Air Antilock Brake System Component Views

Air Antilock Brake System Connector End Views

Wheel Speed Sensor (WSS) - RR Middle (JE4 and HPE)

At the top of the right rear middle backing plate

Air Antilock Brake System Component Views

Air Antilock Brake System Connector End Views

Window Motor

In the right door, on the window regulator

--

Window Systems Connector End Views

Window Switch - Driver

On the top of the left door panel

--

Window Systems Connector End Views

Window Switch - Passenger

On the top of the right door panel

--

Window Systems Connector End Views

Windshield Washer Fluid Pump

At the front left of the exterior cab, behind the inspection panel on the windshield washer reservoir

Wiper/Washer Component Views

Wiper/Washer Connector End Views

Windshield Washer Switch

On the right side of the steering column, the button at the end of the multifunction lever, part of the turn signal/multifunction switch

Wiper/Washer Component Views

Wiper/Washer Connector End Views

Windshield Wiper Motor

At the front left center of the exterior cab, behind the inspection panel

Wiper/Washer Component Views

Wiper/Washer Connector End Views

Windshield Wiper Switch

On the right side of the steering column, controlled by the multifunction lever, part of the turn signal/multifunction switch

Wiper/Washer Component Views

Wiper/Washer Connector End Views

C100 (12 cavities)

Front chassis harness to the upfitter auxiliary wiring harness, taped to the harness, on the left inboard frame rail, forward of the second crossmember, behind cab left side

Harness Routing Views

Inline Harness Connector End Views

C101 (2 cavities) (U08)

Turn signal harness to the horn harness, behind the left side of the front bumper impact bar

Harness Routing Views

Inline Harness Connector End Views

C103 (10 cavities)

Front chassis harness to the upfitter remote transmission control harness, taped to the harness, on the left inboard frame rail, forward of the second crossmember

Harness Routing Views

Inline Harness Connector End Views

C104 (10 cavities)

Front chassis harness to the upfitter remote PTO control harness, taped to the harness, on the left inboard frame rail, by the ECM

Harness Routing Views

Inline Harness Connector End Views

C105 (10 cavities)

Turn signal harness to the front chassis harness, on the left top of the first crossmember, below the grille

Harness Routing Views

Inline Harness Connector End Views

C106 (6 cavities - PTO)

Front chassis harness to the upfitter remote PTO harness, taped to the harness, on the left inboard frame rail, forward of the second crossmember

Harness Routing Views

Inline Harness Connector End Views

C108 (16 cavities - A/T)

Transmission cab harness to the front chassis harness, behind the center of the front bumper, in the electrical connector box

Harness Routing Views

Inline Harness Connector End Views

C109 (16 cavities - A/T)

Transmission cab harness to the front chassis harness, behind the center of the front bumper, in the electrical connector box

Harness Routing Views

Inline Harness Connector End Views

C110 (6 cavities) (A/T)

Transmission cab harness to the front chassis harness, behind the center of the front bumper, in the electrical connector box

Harness Routing Views

Inline Harness Connector End Views

C111 (6 cavities)

Front chassis harness to the engine harness, top of the left frame rail, by the ECM

Harness Routing Views

Inline Harness Connector End Views

C115 (6 cavities) (A/T)

Engine chassis harness to the front chassis harness, on the front left side of the engine on the top of the harness connector bracket

Harness Routing Views

Inline Harness Connector End Views

C115 (12 cavities) (A/T or M/T)

Engine chassis harness to the front chassis harness, on the front left side of the engine on the top of the harness connector bracket, under the air intake tube

Harness Routing Views

Inline Harness Connector End Views

C116 (16 cavities) (A/T)

Engine chassis harness to the front chassis harness, on the front left side of the engine on the side of the harness connector bracket, under the air intake tube

Harness Routing Views

Inline Harness Connector End Views

C117 (16 cavities) (A/T)

Engine chassis harness to the front chassis harness, on the front left side of the engine on the side of the harness connector bracket, under the air intake tube

Harness Routing Views

Inline Harness Connector End Views

C118 (2 cavities)

Engine chassis harness to the front chassis harness, on the front left side of the engine on the top of the harness connector bracket, under the air intake tube

Harness Routing Views

Inline Harness Connector End Views

C120 (4 cavities)

Front chassis harness to the upfitter PTO throttle position sensor harness, taped to the harness, taped to the harness, on the left inboard frame rail, by the left fuel tank

Harness Routing Views

Inline Harness Connector End Views

C122 (8 cavities)

Engine harness to the engine/injector harness connector adapter 1 to injector harness 1, on the upper left side of the cylinder head between injector 2 and 3

Harness Routing Views

Inline Harness Connector End Views

C123 (8 cavities)

Engine harness to the engine/injector harness connector adapter 2 to injector harness 2, on the upper left side of the cylinder head between injector 4 and 5

Harness Routing Views

Inline Harness Connector End Views

C125 (1 cavity)

Engine chassis harness to the front chassis harness, on the front left side of the engine on the side of the harness connector bracket, between the air intake tube and left side of the engine

Harness Routing Views

Inline Harness Connector End Views

C175 (20 cavities) (A/T)

Engine chassis harness to the automatic transmission, on the right rear end of the automatic transmission

Harness Routing Views

Automatic Transmission Inline Harness Connector End View

C175 (31 cavities) (A/T)

Engine chassis harness to the automatic transmission, on the right rear side of the automatic transmission

Harness Routing Views

Automatic Transmission Inline Harness Connector End View

C200 (56 cavities)

Lower I/P harness to the front chassis harness, at the front left center of the exterior cab, behind the inspection panel, in the left side of the cab interface electrical connector box

Harness Routing Views

Inline Harness Connector End Views

C201 (6 cavities)

Lower I/P harness to upfitter harness, at the lower center of the I/P, on the floor, behind the access panel, below the radio

Harness Routing Views

Inline Harness Connector End Views

C202 (56 cavities)

Lower I/P harness to the front chassis harness, at the front left center of the exterior cab, behind the inspection panel, in the right side of the cab interface electrical connector box

Harness Routing Views

Inline Harness Connector End Views

C203 (1 cavity) (JE4)

Lower I/P harness to the lower I/P harness, in the right center of the I/P, under the access panel, taped to the harness near relay block 2, connected for truck service, not connected for tractor service.

Harness Routing Views

Inline Harness Connector End Views

C204 (3 cavities)

Front chassis harness to the lower I/P harness, at the front left center of the exterior cab, behind the inspection panel, in the upper right corner of the cab interface electrical connector box

Harness Routing Views

Inline Harness Connector End Views

C205 (1 cavity)

Front chassis harness to the lower I/P harness, at the front left center of the exterior cab, behind the inspection panel, in the lower left corner of the cab interface electrical connector box

Harness Routing Views

Inline Harness Connector End Views

C206 (2 cavities) (LF8)

Front chassis harness to the lower I/P harness, under front hood in the electric center box

Harness Routing Views

Inline Harness Connector End Views

C207 (1 cavity)

Front chassis harness to the lower I/P harness, at the front left center of the exterior cab, behind the inspection panel, in the upper left corner of the cab interface electrical connector box

Harness Routing Views

Inline Harness Connector End Views

C208 (6 cavities)

Lower I/P harness to the roof harness, behind the right side of the I/P, next to the blower motor

Harness Routing Views

Inline Harness Connector End Views

C209 (6 cavities) (Upfitter Connector)

Lower I/P harness to the upfitter harness, under the left side of the I/P, left of the steering column, taped to the harness by the data link connector (DLC)

Harness Routing Views

Inline Harness Connector End Views

C210 (14 cavities)

Floor harness to the lower I/P harness, in the lower center of the I/P, below the access panel

Harness Routing Views

Inline Harness Connector End Views

C211 (8 cavities)

Lower I/P harness to the dash harness, at the front right side of the exterior cab, behind the hood right side

Harness Routing Views

Inline Harness Connector End Views

C212 (84 cavities)

Lower I/P harness to the upper I/P harness, at the left center of the I/P above the accelerator pedal, behind the knee bolster

Harness Routing Views

Inline Harness Connector End Views

C213 (2 cavities)

Floor harness to the auxiliary power harness, under the left side of the center console housing, at the top

Harness Routing Views

Inline Harness Connector End Views

C214 (2 cavities - JE4)

Upper I/P harness to the air brake pressure gage lamp harness, at the upper left side of the I/P

Harness Routing Views

Inline Harness Connector End Views

C215 (22 cavities)

Lower I/P harness to the transmission cab harness, at the lower center of the I/P, on the floor, behind the access panel, on heat floor vent

Harness Routing Views

Inline Harness Connector End Views

C216 (2 cavities)

Lower I/P harness to the C216 shunt (2 cavities - DNA), in the right center of the I/P, under the access panel, taped to the harness near relay block 2

Harness Routing Views

Inline Harness Connector End Views

C216 (2 cavities) (DNA)

Lower I/P harness, in the right center of the I/P, under the access panel, taped to the harness near relay block 2

Harness Routing Views

Inline Harness Connector End Views

C219 (6 cavities) (A/T)

Floor harness to the transmission cab harness, near the center console

Harness Routing Views

Inline Harness Connector End Views

C221 (1 cavity)

Radio antenna coaxial cable to the antenna coaxial cable, below the left side of the I/P, at the kick panel

Harness Routing Views

--

C400 (2 cavities)

Battery fusible links to the front chassis harness, near the positive battery terminal

Harness Routing Views

Inline Harness Connector End Views

C402 (2 cavities)

Battery fusible links to the front chassis harness, near the positive battery terminal

Harness Routing Views

Inline Harness Connector End Views

C403 (16 cavities)

Rear chassis harness to the front chassis harness, at the inboard left frame rail, forward of the second crossmember, towards center rear section

Harness Routing Views

Inline Harness Connector End Views

C404 (4 cavities) (HPZ)

Rear chassis harness to the two speed rear axle harness, inboard of the right frame rail, forward of the rear axle

Harness Routing Views

Inline Harness Connector End Views

C405 (16 cavities)

Rear chassis harness to the front chassis harness, at the inboard left frame rail, forward of the second crossmember, toward center rear section

Harness Routing Views

Inline Harness Connector End Views

C406 (8 cavities) (JE4 and RQ2 and U86 or JE4 and RQ3)

Tractor/trailer harness to the front chassis harness to the, at the right frame rail, inboard of the batteries

Harness Routing Views

Inline Harness Connector End Views

C407 (6 cavities) (M/T)

Manual transmission harness to the engine chassis harness, at the right side of the transmission

Harness Routing Views

Inline Harness Connector End Views

C411 (6 cavities)

Front chassis harness to the fuel tank harness, at the inboard left frame rail, forward of the second crossmember, near left fuel tank

Harness Routing Views

Inline Harness Connector End Views

C421 (3 cavities) (K16)

Front chassis harness to the air compressor harness, behind the cab at the outboard left frame rail, inboard of and above the fuse block assembly enclosure, on the air compressor bracket

Harness Routing Views

Inline Harness Connector End Views

C501 (8 cavities)

Lower I/P harness to the left door harness, forward of the door, on the body between door hinges

Harness Routing Views

Inline Harness Connector End Views

C503 (2 cavities) (DNA/DNN)

Left outside rear view mirror connector to the left door harness, in the interior side of the left door, behind the door panel

Harness Routing Views

Inline Harness Connector End Views

C601 (8 cavities)

Lower I/P harness to the right door harness, forward of the door, on the body between door hinges

Harness Routing Views

Inline Harness Connector End Views

C603 (2 cavities) (DNA/DNN)

Right outside rear view mirror connector to the right door harness, in the interior side of the right door, behind the door panel

Harness Routing Views

Inline Harness Connector End Views

G100

On the outboard side of the right frame rail forward of the RF upper shock absorber mount, to the engine

Power and Grounding Component Views

--

G101

On the right side of the engine, lower front, to the outboard frame rail

Power and Grounding Component Views

--

G102 (LG4)

In the engine harness, on the lower left side of the engine, forward of the oil filter, above the motor mount

Power and Grounding Component Views

--

G103 (LG4)

In the fuel heater pigtail, on the left side of the engine, on the back of the fuel filter

Power and Grounding Component Views

--

G107

In the front chassis harness, on the right frame rail above the front spring perch

Power and Grounding Component Views

--

G108 (JE3)

At the front of the vehicle, in the power brake booster pump pigtail, left of the brake master cylinder

Power and Grounding Component Views

--

G114

Ground wire, on the outboard right front frame rail to the right front of the cab

Power and Grounding Component Views

--

G208

In the lower I/P harness, upper right side of the I/P, on the I/P support bracket

Power and Grounding Component Views

--

G209

In the lower I/P harness, upper right side of the I/P, on the I/P support bracket

Power and Grounding Component Views

--

G210

In the lower I/P harness and in the right door harness, on the right lower exterior A-pillar behind the trim panel

Power and Grounding Component Views

--

G214

On the right front of the cab to the outboard right front frame rail

Power and Grounding Component Views

--

G400

On the outboard side of the right frame rail, from the negative battery cable and from the ground cable/ground block (SP400)

Power and Grounding Component Views

--

G402 (JE4 and RQ2 and U86 or JE4 and RQ3)

At the rear inboard side of the right frame rail, from the tractor-trailer harness

Power and Grounding Component Views

--

G410 (NJ7 or NJ8 or NK8)

At the outboard side of the right frame rail on top of the fuel tank

Power and Grounding Component Views

--

G411 (NJ7 or NJ8 or w/o NK8)

At the outboard side of the left frame rail on top of the fuel tank

Power and Grounding Component Views

--

G501

In the left door harness, on the left lower exterior A-pillar behind the trim panel

Power and Grounding Component Views

--

G502

In the left door harness, in the left door

Power and Grounding Component Views

--

G602

In the right door harness, in the right door

Power and Grounding Component Views

--

S100 (U08)

(CKT 29) In the horn harness

--

--

S101 (U08)

(CKT 150) In the horn harness

--

--

S102

(CKT 5) In the turn signal harness

--

--

S103 (JE3)

(CKT BT01) In the front chassis harness

--

--

S103 (JE4)

(CKT ZZ02) In the front chassis harness

--

--

S104

(CKT CF04) In the front chassis harness

--

--

S105

(CKT 2) In the turn signal harness

--

--

S106

(CKT DF29) In the engine harness

--

--

S107

(CKT ZZ03) In the front chassis harness

--

--

S108

(CKT ZZ03) In the front chassis harness

--

--

S109

(CKT BX14) In the front chassis harness

--

--

S110

(CKT WB07) In the front chassis harness

--

--

S111 (JE3)

In the front chassis harness

--

--

S112

In the front chassis harness

--

--

S113

In the front chassis harness

--

--

S114

In the front chassis harness

--

--

S115

In the front chassis harness

--

--

S116

In the front chassis harness

--

--

S117

In the lower I/P harness

--

--

S118

In the engine harness

--

--

S119

In the engine harness

--

--

S120

In the front chassis harness

--

--

S121

In the front chassis harness

--

--

S122

In the front chassis harness

--

--

S123

In the front chassis harness

--

--

S125

In the front chassis harness

--

--

S126

In the front chassis harness

--

--

S127

In the front chassis harness

--

--

S128

In the front chassis harness

--

--

S129 (JE4)

In the front chassis harness

--

--

S130 (A/T)

In the front chassis harness

--

--

S131

In the front chassis harness

--

--

S132

In the front chassis harness

--

--

S133

In the front chassis harness

--

--

S151 (A/T)

In the front chassis harness

--

--

S152

In the front chassis harness

--

--

S158

In the front chassis harness

--

--

S159

In the front chassis harness

--

--

S160

In the engine chassis harness

--

--

S167

In the engine harness

--

--

S168

In the engine harness

--

--

S174 (A/T)

In the internal transmission harness, approximately 19.5 cm (7.7 in) from C175

--

--

S175 (A/T)

In the internal transmission harness, approximately 10.5 cm (4.1 in) from C175

--

--

S176 (A/T)

In the front chassis harness

--

--

S177 (A/T)

In the front chassis harness

--

--

S182

In the front chassis harness

--

--

S184

In the engine harness

--

--

S185

In the engine harness

--

--

S186

In the engine harness

--

--

S191

In the engine harness

--

--

S192

In the engine harness

--

--

S193

In the engine harness

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S194

In the engine chassis harness

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S195

In the engine harness

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S196

In the engine chassis harness

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S197

In the engine chassis harness

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S198

In the engine harness

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S200

In the lower I/P harness

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S201

In the lower I/P harness

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S202 (A/T)

In the transmission cab harness

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S203 (A/T)

In the transmission cab harness

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S204

In the lower I/P harness

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S205

In the lower I/P harness

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S206

In the lower I/P harness

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S207

In the lower I/P harness

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--

S208

In the lower I/P harness

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--

S209

In the lower I/P harness

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S211

In the upper I/P harness

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--

S212

In the lower I/P harness

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--

S213

In the lower I/P harness

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--

S214

In the lower I/P harness

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--

S215

In the lower I/P harness

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--

S216

In the lower I/P harness

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--

S217

In the lower I/P harness

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--

S218

In the lower I/P harness

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--

S219

In the lower I/P harness

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--

S220

In the lower I/P harness

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--

S221 (A/T)

In the upper I/P harness

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--

S222

In the lower I/P harness

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S223

In the lower I/P harness

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S224 (A/T)

In the transmission cab harness

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S225

In the lower I/P harness

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--

S228

In the lower I/P harness

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--

S229

In the lower I/P harness

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--

S230

In the lower I/P harness

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--

S231

In the lower I/P harness

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--

S232

In the lower I/P harness

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--

S233

In the lower I/P harness

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--

S235

In the lower I/P harness

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--

S237

In the lower I/P harness

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S239

In the lower I/P harness

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--

S240 (HPZ)

In the lower I/P harness

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--

S242

In the lower I/P harness

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--

S245

In the lower I/P harness

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--

S246

In the lower I/P harness

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--

S247

In the lower I/P harness

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--

S248

In the lower I/P harness

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--

S252

In the lower I/P harness

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--

S254

In the lower I/P harness

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--

S255

In the upper I/P harness

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--

S256

In the lower I/P harness

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--

S257

In the lower I/P harness

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--

S263

In the upper I/P harness

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--

S264

In the lower I/P harness

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--

S268

In the upper I/P harness

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--

S269

In the lower I/P harness

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--

S270

In the transmission cab harness

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S271

In the transmission cab harness

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S272

In the transmission cab harness

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S273

In the transmission cab harness

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S274

In the transmission cab harness

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S275

In the transmission cab harness

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S276 (A/T)

In the transmission cab harness

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S277 (A/T)

In the transmission cab harness

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S278

In the lower I/P harness

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--

S280

In the lower I/P harness

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--

S283 (A/T)

In the transmission cab harness

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--

S284

In the lower I/P harness

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--

S285

In the lower I/P harness

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--

S286

In the lower I/P harness

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--

S288

In the lower I/P harness

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--

S295

In the upper I/P harness

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S300 (A/T)

In the transmission cab harness

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--

S301

In the upper I/P harness, behind the upper left side of the I/P, taped to the harness between the IPC and driver information center (DIC) breakouts

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S302

In the upper I/P harness, behind the upper left side of the I/P, taped to the harness between the IPC and driver information center (DIC) breakouts

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S303

In the upper I/P harness, behind the upper left side of the I/P, taped to the harness between the IPC and driver information center (DIC) breakouts

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S304

In the lower I/P harness, behind the lower center of the I/P, taped to the harness by the radio breakout

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S305

In the lower I/P harness, behind the lower left side of the I/P, taped to the harness between the data link connector (DLC) and the CAN connector

Harness Routing Views

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S306 (C60)

In the lower I/P harness

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S307 (C60)

In the lower I/P harness

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S308 (C60)

In the lower I/P harness

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--

S310

In the lower I/P harness, behind the lower right side of the I/P

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S312

In the lower I/P harness

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--

S313

In the lower I/P harness

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--

S318

In the lower I/P harness

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--

S319

In the lower I/P harness

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--

S321

In the lower I/P harness

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--

S334

In the lower I/P harness

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--

S335

In the lower I/P harness

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--

S336

In the lower I/P harness

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--

S344

In the floor harness

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S345

In the roof harness

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S348

In the floor harness

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S349

In the lower I/P harness

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S350

In the lower I/P harness

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S358

In the floor harness

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S359

In the roof harness

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S360

In the roof harness

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S365

In the roof harness

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S366

In the roof harness

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S367

In the roof harness

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S368

In the roof harness

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S378

In the lower I/P harness

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--

S380

In the upper I/P harness

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--

S386

In the lower I/P harness

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--

S387

In the upper I/P harness

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S402

In the rear chassis harness

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S406 (JE4)

In the front chassis harness

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S411 (JE4)

In the front chassis harness

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--

S412 (JE4)

In the front chassis harness

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S413 (JE4)

In the rear chassis harness

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S414 (JE4)

In the rear chassis harness

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S416

In the front chassis harness

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S418 (HPZ)

In the two speed rear axle harness

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S421 (K16)

In the air compressor harness

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--

S422

In the front chassis harness

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S423

In the front chassis harness

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S424 (JE4)

In the front chassis harness

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S500

In the left door harness

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S600

In the right door harness

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S900

In the rear chassis harness

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S901

In the rear chassis harness

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Splice Pack SP201 (33 cavities)

In the lower I/P harness, behind the lower center of the I/P, taped to the harness between the windshield wiper motor breakout and bulkhead connector C200, behind the radio

Harness Routing Views

Splice Pack Connector End Views

Splice Pack SP204 (22 cavities)

In the lower I/P harness, behind the left side of the I/P, taped to the harness

Harness Routing Views

Splice Pack Connector End Views

Splice Pack SP205 (10 cavities)

In the upper I/P harness, behind the radio, taped to the harness

Harness Routing Views

Splice Pack Connector End Views

Splice Pack SP206 (12 cavities)

In the lower I/P harness, under the passenger seat, near the chime module, taped to the harness, on the chime module breakout

Harness Routing Views

Splice Pack Connector End Views

Splice Pack SP209 (6 cavities)

In the lower I/P harness, under the passenger seat, near the chime module, taped to the harness, on the chime module breakout

Harness Routing Views

Splice Pack Connector End Views

Splice Pack SP210 (6 cavities)

In the lower I/P harness, left side of the I/P, near CAN connector, taped to the harness

Harness Routing Views

Splice Pack Connector End Views

Splice Pack SP211 (6 cavities)

In the lower I/P harness, under the passenger seat, near the chime module, taped to the harness, on the chime module breakout

Harness Routing Views

Splice Pack Connector End Views

Splice Pack SP212 (10 cavities)

In the lower I/P harness, behind the lower center of the I/P, taped to the harness by the radio breakout

Harness Routing Views

Splice Pack Connector End Views

Splice Pack SP219 (4 cavities)

In the lower I/P harness, under the passenger seat, near the chime module, taped to the harness, on the chime module breakout

Harness Routing Views

Splice Pack Connector End Views

Splice Pack SP227 (10 cavities)

In the lower I/P harness, on the right side of the I/P, behind blower motor

Harness Routing Views

Splice Pack Connector End Views

Splice Pack SP230 (6 cavities) (A/T)

In the transmission cab harness, under the passenger seat, behind the seat stand cover, near the transmission control module (TCM), taped to the harness breakouts to the TCM

Harness Routing Views

Splice Pack Connector End Views

Splice Pack SP231 (6 cavities) (A/T)

In the transmission cab harness, under the passenger seat, behind the seat stand cover, near the transmission control module (TCM), taped to the harness breakouts to the TCM

Harness Routing Views

Splice Pack Connector End Views

Splice Pack SP232 (6 cavities) (MD)

In the transmission cab harness, under the passenger seat, behind the seat stand cover, near the transmission control module (TCM), taped to the harness breakouts to the TCM

Harness Routing Views

Splice Pack Connector End Views

Splice Pack SP233 (6 cavities) (MD)

In the transmission cab harness, under the passenger seat, behind the seat stand cover, near the transmission control module (TCM), taped to the harness breakouts to the TCM

Harness Routing Views

Splice Pack Connector End Views

Splice Pack SP400 (6 cavities)

On the inboard side of the right frame rail, the ground block, part of the ground cable

Harness Routing Views

Splice Pack Connector End Views