GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

ABS Diode (D201) (JE3)

In the IP harness, approximately 4 cm (1.6 in) from relay block #4 breakout

Harness Routing Views

--

ABS Indicator Relay

On the right side of the IP, under the access cover, in relay block #4, position C

Electrical Center Identification Views

Power and Grounding Connector End Views

ABS Relay (JE5)

On the right side of the IP, under the access cover, in relay block #3, position B

Electrical Center Identification Views

Power and Grounding Connector End Views

Accelerator Pedal (AP) (L18)

To the left of center, on the lower bulkhead

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Accelerator Pedal Position (APP) Sensor (LG5)

To the left of center, on the lower bulkhead

Engine Controls Component Views in Engine Controls - 7.2 L (Caterpillar)

Engine Controls Connector End Views in Engine Controls - 7.2 L (Caterpillar)

Air Brake Dryer

On the outboard side of the left frame rail

Air Brake System Component Views in Air Brakes

Air Brake System Connector End Views in Air Brakes

Air Brake Pressure Gauge Lamp

On the left side of the IP, to the right of the steering column, in the right accessory trim plate, in the air brake pressure gauge

Lighting Systems Component Views in Lighting Systems

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Ammeter

On the left side of the IP, to the right of the steering column, in the right accessory trim plate, the bottom gauge

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Ammeter Lamp

On the left side of the IP, to the right of the steering column, in the right accessory trim plate, in the ammeter

Lighting Systems Component Views in Lighting Systems

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Automatic Transmission (A/T) (MX4/MTW)

Behind the engine

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Inline Harness Connector End View in Automatic Transmission - Allison

Automatic Transmission Input Shaft Speed (ISS) Sensor (LG5/MX4/MTW)

On the automatic transmission, near the top of the left side of the bell housing

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Related Connector End Views in Automatic Transmission - Allison

Automatic Transmission Modulator (MF1)

On the lower left side of the transmission

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Related Connector End Views in Automatic Transmission - Allison

Automatic Transmission Modulator Relay (L18/MF1)

In the center of the IP, left of the fuse block - I/P, in relay block #5, position D

Electrical Center Identification Views

Power and Grounding Connector End Views

Automatic Transmission Modulator Relay (LG5/MF1)

On the right side of the IP, under the access cover, in relay block #2, position B

Electrical Center Identification Views

Power and Grounding Connector End Views

Automatic Transmission Shift Lever

On the left side of the IP, to the right of the steering column, on the center accessory trim plate

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

On the left side of the IP, part of the automatic transmission shift lever

Lighting Systems Component Views in Lighting Systems

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Backup Lamp Switch (Manual Transmission)

On the top of the transmission, left of the gear shift lever

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Backup Lamp Switch (MF1)

On the lower right side of the transmission

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Backup Lamp Switch (MX4/MTW)

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

--

Lighting Systems Connector End Views in Lighting Systems

Battery

Relocated by the upfitter

Engine Electrical Component Views in Engine Electrical

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Brake Fluid Level Switch

On the left side of the brake master cylinder reservoir

Hydraulic Brake Component Views in Hydraulic Brakes

Hydraulic Brake Connector End Views in Hydraulic Brakes

Brake Pressure Modulator Valve (BPMV) - LF (JE5)

On the left rear 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) - LR (JE5)

On the left 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

Brake Pressure Modulator Valve (BPMV) - RF (JE5)

On the right side and to the rear 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 (JE5)

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

Camshaft Position (CMP) Sensor

On top of the engine, at the rear of the intake manifold

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Charge Indicator Diode (D200) (LG5)

In the IP harness, in the main harness, inline, approximately 4 cm (1.6 in) to the left of the data link connector (DLC) breakout

Harness Routing Views

--

Clutch Pedal Position (CPP) Switch (L18)

On the clutch pedal bracket

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Clutch Pedal Position (CPP) Switch (LG5)

On the clutch pedal bracket

Engine Controls Component Views in Engine Controls - 7.2 L (Caterpillar)

Engine Controls Connector End Views in Engine Controls - 7.2 L (Caterpillar)

Clutch Switch

On the clutch pedal bracket

Engine Electrical Component Views in Engine Electrical

Engine Electrical Connector End Views in Engine Electrical

Coolant Level Switch

On the right 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)

On the front of the engine, at the bottom of the timing chain cover

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Cruise Control ON/OFF Switch

On the left side of the steering column, on the multifunction lever, part of the turn signal/mulifunction switch, connector C2

Cruise Control Component Views in Cruise Control

Cruise Control Connector End Views in Cruise Control

Cruise Control Resume/Accel Switch

On the left side of the steering column, on the multifunction lever, part of the turn signal/mulifunction switch, connector C2

Cruise Control Component Views in Cruise Control

Cruise Control Connector End Views in Cruise Control

Cruise Control Set/Coast Switch

On the left side of the steering column, on the multifunction lever, part of the turn signal/mulifunction switch, connector C2

Cruise Control Component Views in Cruise Control

Cruise Control Connector End Views in Cruise Control

Data Link Connector (DLC)

Under the left side of the IP

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Daytime Running Lamps (DRL) Control Module

Under the right side of the IP, approximately 15 cm (5.9 in) from the relay blocks breakout

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Daytime Running Lamps (DRL) Diode

Under the right side of the IP, approximately 15 cm (5.9 in) from the relay blocks breakout

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Daytime Running Lamps (DRL) Relay

On the right side of the IP, under the access cover, in relay block #4, position D

Electrical Center Identification Views

Power and Grounding Connector End Views

Driver Information Center (DIC)

On the left side of the IP, part of the instrument panel cluster (IPC)

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

--

Driver Information Center (DIC) C1 (11 cavities, BLU)

In the IP harness, to the DIC

--

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Driver Information Center (DIC) C2 (11 cavities, BRN)

In the IP harness, to the DIC

--

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Electronic Brake Control Module (EBCM) (JE3)

On the inboard side of the left frame rail, to the rear of number one crossmember, on the bracket

Antilock Brake System Component Views in Antilock Brake System

--

Electronic Brake Control Module (EBCM) C1 (2 cavities) (JE3)

In the electronic brake control harness, to the EBCM

--

Antilock Brake System Connector End Views in Antilock Brake System

Electronic Brake Control Module (EBCM) C2 (24 cavities) (JE3)

In the electronic brake control harness, to the EBCM

--

Antilock Brake System Connector End Views in Antilock Brake System

Electronic Brake Control Module (EBCM) (JE5)

In the engine compartment, on the upper left bulkhead, on the top of the air brake application valve

Air Antilock Brake System Component Views in Air Antilock Brake System

--

Electronic Brake Control Module (EBCM) C1 (30 cavities) (JE5)

In the electronic brake control harness, to the EBCM

--

Air Antilock Brake System Connector End Views in Air Antilock Brake System

Electronic Brake Control Module (EBCM) C2 (18 cavities) (JE5)

In the electronic brake control harness, to the EBCM

--

Air Antilock Brake System Connector End Views in Air Antilock Brake System

Engine Brake Actuator Control Valve

On the left rear side of the back-of-the-cab crossmember

Engine Exhaust Brake Component Views in Engine Exhaust

Engine Exhaust Brake Connector End Views in Engine Exhaust

Engine Brake Relay

On the right side of the IP, under the access cover, above relay block #2 , above position A

Engine Exhaust Brake Component Views in Engine Exhaust

Engine Exhaust Brake Connector End Views in Engine Exhaust

Engine Coolant Temperature (ECT) Gauge Sensor (L18)

On the engine, in the right cylinder head, above the spark plugs, between the #5 and #7 cylinder, part of the ECT sensor

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

--

Engine Coolant Temperature (ECT) Gauge Sensor (LG5)

On the right side of the engine, on the right rear side of the coolant outlet housing

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Engine Coolant Temperature (ECT) Sensor (L18)

On the engine, in the right cylinder head, above the spark plugs, between the #5 and #7 cylinder

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Engine Coolant Temperature (ECT) Switch (LG5/KPJ/UER)

On the right side of the engine, to the rear of the coolant outlet, the top switch

Engine Controls Component Views in Engine Controls - 7.2 L (Caterpillar)

Engine Controls Connector End Views in Engine Controls - 7.2 L (Caterpillar)

Engine Coolant Temperature (ECT) Switch (LG5/V04)

On the right side of the engine, on the upper left side of the coolant outlet extension housing

Cooling System Component Views in Engine Cooling

Cooling System Connector End Views in Engine Cooling

Engine Hour Meter

On the left side of the IP, to the right of the steering column, on the center accessory trim plate, the top gauge

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Engine Metal Temperature Switch (LG5/KTE)

On the rear of the engine, on the cylinder head

Engine Electrical Component Views in Engine Electrical

Engine Electrical Connector End Views in Engine Electrical

Engine Oil Pressure (EOP) Sensor (LG5)

On the left side of the engine block, on a tee, pointing up

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Engine Oil Pressure (EOP) Sensor (L18)

On the top rear of the engine, behind the intake manifold

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Engine Oil Pressure (EOP) Switch (LG5/KPJ/UER)

On the left side of the engine block, on a tee fitting pointing to the rear

Engine Controls Component Views in Engine Controls - 7.2 L (Caterpillar)

Engine Controls Connector End Views in Engine Controls - 7.2 L (Caterpillar)

Ether Injector Control Valve (LG5/KTE)

In the engine compartment, on the right side of the bulkhead

Engine Electrical Component Views in Engine Electrical

Engine Electrical Connector End Views in Engine Electrical

Ether Injector Control Valve Relay (LG5/KTE)

On the right side of the IP, under the access cover, in relay block #4, position E

Electrical Center Identification Views

Power and Grounding Connector End Views

Evaporative Emission (EVAP) Canister Purge Solenoid

On the left side of engine, on the intake plenum

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Exhaust Brake Switch

On the center of the IP

Engine Exhaust Brake Component Views in Engine Exhaust

Engine Exhaust Brake Connector End Views in Engine Exhaust

Exhaust Gas Recirculation (EGR) Valve

On the left side of engine, on the intake plenum

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Fuel Heater (LG5/KUN)

On the left side of the engine, part of the fuel/ water separator (fuel filter)

Engine Controls Component Views in Engine Controls - 7.2 L (Caterpillar)

Engine Controls Connector End Views in Engine Controls - 7.2 L (Caterpillar)

Fuel Injector - 1

In the intake manifold, under the left side of the intake plenum

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Fuel Injector - 2

In the intake manifold, under the right side of the intake plenum

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Fuel Injector - 3

In the intake manifold, under the left side of the intake plenum

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Fuel Injector - 4

In the intake manifold, under the right side of the intake plenum

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Fuel Injector - 5

In the intake manifold, under the left side of the intake plenum

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Fuel Injector - 6

In the intake manifold, under the right side of the intake plenum

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Fuel Injector - 7

In the intake manifold, under the left side of the intake plenum

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Fuel Injector - 8

In the intake manifold, under the right side of the intake plenum

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Fuel Level Sensor (LG5)

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

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Fuel Pump (FP) Relay (L18)

On the right side of the IP, under the access cover, in relay block #4, position E

Electrical Center Identification Views

Power and Grounding Connector End Views

Fuel Pump and Sender Assembly (L18)

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

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Fuel Pump and Sender Assembly (L18)

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

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Fuel Pump Prime Connector (1 cavity) (L18)

Under the left side of the IP, on the data link connector (DLC) breakout

Engine Controls Component Views in Engine Controls - 8.1 L

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Fuse Block - 1

On the right side of the IP, under the access cover, on the left side of the fuse blocks

Electrical Center Identification Views

Power and Grounding Connector End Views

Fuse Block - 2

On the right side of the IP, under the access cover, on the center of the fuse blocks

Electrical Center Identification Views

Power and Grounding Connector End Views

Fuse Block - I/P

In the center of the IP, to the left of the instrument panel cluster (IPC)

Electrical Center Identification Views

Power and Grounding Connector End Views

Generator

On the upper right side of the engine

Engine Electrical Component Views in Engine Electrical

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Generator Inline Fuse

Taped to the engine harness at the rear of the generator

Engine Electrical Component Views in Engine Electrical

Engine Electrical Connector End Views in Engine Electrical

Hazard Indicator Lamp

On the left side of the IP, to the right of the steering column, on the right accessory trim plate, part of the hazard name plate

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Hazard Switch

On the left side of the IP, to the right of the steering column, on the right accessory trim plate

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Hazard Switch Lamp

On the left side of the IP, to the right of the steering column, on the right accessory trim plate, behind the hazard switch knob

Lighting Systems Component Views in Lighting Systems

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Headlamp - High Beam - Left

On the left front side of the hood

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Headlamp - High Beam - Right

On the right front side of the hood

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Headlamp - Low Beam - Left

On the left front side of the hood

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Headlamp - Low Beam - Right

On the right front side of the hood

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Headlamp Dimmer Switch

On the left side of the lower part of the steering column

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Headlamp Switch

On the left side of the IP, to the left of the instrument panel cluster (IPC)

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Heated Moisture Ejector Valve

On bottom rear of the primary air reservoir

Air Brake System Component Views in Air Brakes

Air Brake System Connector End Views in Air Brakes

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1

On the left exhaust pipe, below the exhaust manifold

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1

On the right exhaust pipe, below the exhaust manifold

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

High Idle Switch (L18)

On the left side of the IP, to the right of the steering column, on the left IP accessory trim plate

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

High Idle Switch (LG5)

On the left side of the IP, to the right of the steering column, on the left IP accessory trim plate

Engine Controls Component Views in Engine Controls - 7.2 L (Caterpillar)

Engine Controls Connector End Views in Engine Controls - 7.2 L (Caterpillar)

Horn (High Note)

Behind the front bumper, on the front right side of the crossmember

Horn Component Views in Horns

Horn Connector End Views in Horns

Horn (Low Note)

Behind the front bumper, on the front left side of the crossmember

Horn Component Views in Horns

Horn Connector End Views in Horns

Horn Contact

On the center of the steering wheel, part of the steering wheel horn cap

Horn Component Views in Horns

--

Horn Relay

On the right side of the IP, under the access cover, in relay block #4, position B

Electrical Center Identification Views

Power and Grounding Connector End Views

Horn Slip Ring

On the center of the steering wheel, part of the steering wheel horn cap

Horn Component Views in Horns

--

Horn Switch

On the center of the steering wheel, part of the steering wheel horncap

Horn Component Views in Horns

--

Ignition 1 Relay

On the right side of the IP, under the access cover, in relay block #4, position A

Electrical Center Identification Views

Power and Grounding Connector End Views

Ignition 1A Relay

In the center of the IP, left of the fuse block - I/P, in relay block #5, position E

Electrical Center Identification Views

Power and Grounding Connector End Views

Ignition 1B Relay

In the center of the IP, left of the fuse block - I/P, in relay block #5, position F

Electrical Center Identification Views

Power and Grounding Connector End Views

Ignition 3 Relay (LG5)

On the right side of the IP, under the access cover, in relay block #1, position A

Electrical Center Identification Views

Power and Grounding Connector End Views

Ignition Coil - 1

On the left side of the engine, on top of the valve cover

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Ignition Coil - 2

On the right side of the engine, on top of the valve cover

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Ignition Coil - 3

On the left side of the engine, on top of the valve cover

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Ignition Coil - 4

On the right side of the engine, on top of the valve cover

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Ignition Coil - 5

On the left side of the engine, on top of the valve cover

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Ignition Coil - 6

On the right side of the engine, on top of the valve cover

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Ignition Coil - 7

On the left side of the engine, on top of the valve cover

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Ignition Coil - 8

On the right side of the engine, on top of the valve cover

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Ignition Switch

On the top side of the lower steering column

Power and Grounding Component Views

--

Ignition Switch C1 (5 cavities)

In the IP harness, to the ignition switch

--

Power and Grounding Connector End Views

Ignition Switch C2 (4 cavities)

In the IP harness, to the ignition switch

--

Power and Grounding Connector End Views

Instrument Panel Cluster (IPC)

In the left side of the IP

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Intake Air (IA) Heater (LG5)

Between the air intake housing and the intake manifold, part of the Caterpillar engine

Engine Controls Component Views in Engine Controls - 7.2 L (Caterpillar)

--

Intake Air (IA) Heater Relay (LG5)

On the top right side of the cylinder head, part of the Caterpillar engine

Engine Controls Component Views in Engine Controls - 7.2 L (Caterpillar)

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Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor (L18)

On top right side of the engine, in the plenum, between the air filter housing and the throttle body

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

IP Dimming Module

On the left side of the IP, to the left of the instrument panel cluster (IPC)

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

I/P Cluster Illumination Lamps

On the left side of the IP, in the instrument panel cluster (IPC)

Lighting Systems Component Views in Lighting Systems

--

Junction Block - Upfitter I/P

Under the left side of the IP, on the left kick panel

Power and Grounding Component Views

--

Knock Sensor (KS) Bank 1

In the engine block, at the left side, below the exhaust manifold

Engine Controls Component Views in Engine Controls - 8.1 L

--

Knock Sensor (KS) Bank 2

In the engine block, at the right side, below the exhaust manifold

Engine Controls Component Views in Engine Controls - 8.1 L

--

Low Air Pressure Switch

Under the IP, above the accelerator pedal

Air Brake System Component Views in Air Brakes

Air Brake System Connector End Views in Air Brakes

Manifold Absolute Pressure (MAP) Sensor

In the front center of the intake manifold, behind the water outlet

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Multifunction Alarm Module (L18)

In the center of the IP, behind the right access panel

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Multifunction Alarm Module (LG5 w/o KPJ)

In the center of the IP, behind the right access panel

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Multifunction Alarm Module (LG5/KPJ)

In the center of the IP, behind the right access panel

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

--

Multifunction Alarm Module C1 (16 cavities) (LG5/KPJ)

In the IP harness, to the multifunction alarm module

--

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Multifunction Alarm Module C2 (4 cavities) (LG5/KPJ)

In the IP harness, to the multifunction alarm module

--

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Neutral Safety Switch (MF1)

On the left side of the automatic transmission

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Related Connector End Views in Automatic Transmission - Allison

On/Off Shift Solenoid (Valve C)

In the automatic transmission, on the right side of the shift valve body

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison

On/Off Shift Solenoid (Valve D)

In the automatic transmission, on the right side of the shift valve body

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison

On/Off Shift Solenoid (Valve E)

In the automatic transmission, on the right side of the shift valve body

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison

Park Brake Switch (JE3)

On the left kick panel, to the right rear of the park brake lever

Park Brake System Component Views in Park Brake

--

Park Brake Switch (JE5)

On the right side of the IP, on the park brake valve

Park Brake System Component Views in Park Brake

Park Brake System Connector End Views in Park Brake

Park/Neutral Relay (LG5/MX4/MTW)

On the exterior bulkhead

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Related Connector End Views in Automatic Transmission - Allison

Park/Neutral Position (PNP) Switch (MX4/MTW)

On the automatic transmission, at the center of the left side

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

--

Park/Neutral Position (PNP) Switch C1 (7 cavities) (MX4/MTW)

In the engine harness, to the PNP switch

--

Automatic Transmission Related Connector End Views in Automatic Transmission - Allison

Park/Neutral Position (PNP) Switch C2 (4 cavities) (MX4/MTW)

In the engine harness, to the PNP switch

--

Automatic Transmission Related Connector End Views in Automatic Transmission - Allison

Park/Turn Signal Lamp - LF

On the top of the left front fender

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Park/Turn Signal Lamp - RF

On the top of the right front fender

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Power Brake (P/B) Booster Fluid Flow Switch

On the upper left side of the bulkhead, behind the brake master cylinder, on the top of the P/B booster pump housing

Hydraulic Brake Component Views in Hydraulic Brakes

Hydraulic Brake Connector End Views in Hydraulic Brakes

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

On the upper left side of the bulkhead, at the brake master cylinder, part of the power brake (P/B) booster pump

Hydraulic Brake Component Views in Hydraulic Brakes

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Power Brake (P/B) Booster Pump Motor Relay

On the right side of the IP, under the access cover, above relay block #3 , above position A

Hydraulic Brake Component Views in Hydraulic Brakes

Hydraulic Brake Connector End Views in Hydraulic Brakes

Powertrain Control Module (PCM) (L18)

In the engine compartment, on the left side of the bulkhead

Engine Controls Component Views in Engine Controls - 8.1 L

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Powertrain Control Module (PCM) C1 (80 cavities, ) (L18)

In the engine harness, to the PCM

--

Powertrain Control Module Connector End Views in Engine Controls - 8.1 L

Powertrain Control Module (PCM) C2 (80 cavities) (L18)

In the engine harness, to the PCM

--

Powertrain Control Module Connector End Views in Engine Controls - 8.1 L

Powertrain Control Module (PCM) (LG5)

On the left rear side of the engine block

Engine Controls Component Views in Engine Controls - 7.2 L (Caterpillar)

Engine Controls Connector End Views in Engine Controls - 7.2 L (Caterpillar)

Pressure Control Solenoid Valve A

In the automatic transmission, on the main valve body

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison

Pressure Control Solenoid Valve B

In the automatic transmission, on the main valve body

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison

Radiator Shutter Valve Assembly (LG5/V04)

On the left side of the radiator core support

Cooling System Component Views in Engine Cooling

Cooling System Connector End Views in Engine Cooling

Rear Axle Air Shift Switch - Two Speed (HR1/HR2)

On the left frame rail, forward of the rear axle, on the two speed rear axle quick-release valve

Rear Axle Component Views in Rear Axle Controls

Rear Axle Connector End Views in Rear Axle Controls

Rear Axle Driver Control Switch -Two Speed (HPZ)

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 Shift Motor - Two Speed (HPZ)

On the front left side of the differential housing

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 right side of the crossmember, forward of the rear axle

Rear Axle Component Views in Rear Axle Controls

Rear Axle Connector End Views in Rear Axle Controls

Relay Block #1

On the right side of the IP, under the access cover, on the left side

Electrical Center Identification Views

Power and Grounding Connector End Views

Relay Block #2

On the right side of the IP, under the access cover, on the right side of relay block #1

Electrical Center Identification Views

Power and Grounding Connector End Views

Relay Block #3

On the right side of the IP, under the access cover, on the right side of relay block #2

Electrical Center Identification Views

Power and Grounding Connector End Views

Relay Block #4

On the right side of the IP, under the access cover, on the right side of fuse block - 2

Electrical Center Identification Views

Power and Grounding Connector End Views

Relay Block #5 (L18)

In the center of the IP, left of the fuse block - I/P

Electrical Center Identification Views

Power and Grounding Connector End Views

Speedometer Adapter (LG5, w/o CTF)

On the right side of the IP, under the access cover, under the fuse and relay blocks

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Starter (L18)

On the lower right side of the engine

Engine Electrical Component Views in Engine Electrical

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Starter (LG5/KQR)

On the lower right side of the engine

Engine Electrical Component Views in Engine Electrical

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Starter (LG5 w/o KQR)

On the lower right side of the engine

Engine Electrical Component Views in Engine Electrical

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Starter Relay

On the right side of the IP, under the access cover, in relay block #2, position A

Electrical Center Identification Views

Power and Grounding Connector End Views

Starter Solenoid

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

Engine Electrical Component Views in Engine Electrical

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Starter Temperature Switch (LG5/KQR)

On the lower right side of the engine, on the end of the starter

Engine Electrical Component Views in Engine Electrical

Engine Electrical Connector End Views in Engine Electrical

Steering Wheel Horn Cap

On the center of the steering wheel

Horn Component Views in Horns

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Stoplamp Switch

On the brake pedal support

Lighting Systems Component Views in Lighting Systems

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Stoplamp Switch C1 (4 cavities)

In the IP harness, to the stoplamp switch

--

Lighting Systems Connector End Views in Lighting Systems

Stoplamp Switch C2 (2 cavities)

In the IP harness, to the stoplamp switch

--

Lighting Systems Connector End Views in Lighting Systems

Stoplamp Switch Interface Module (L18)

In the center of the IP, left of the fuse block - I/P

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Stoplamp Switch Interface Module (LG5)

In the center of the IP, left of the fuse block - I/P

Engine Controls Component Views in Engine Controls - 7.2 L (Caterpillar)

Engine Controls Connector End Views in Engine Controls - 7.2 L (Caterpillar)

Stoplamp Switch Signal Inverter Module (LG5/JE3/MX4/MTW)

In the center of the IP, left of the fuse block - I/P

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Related Connector End Views in Automatic Transmission - Allison

Sump Temperature Sensor

In the automatic transmission, part of the transmission fluid pressure switch assembly

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison

Taillamp (Lighting) Relay

On the right side of the IP, under the access cover, in relay block #4, position F

Electrical Center Identification Views

Power and Grounding Connector End Views

TCC PWM Solenoid (Valve F)

In the automatic trasnmission, on the right side of the main valve body

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison

Throttle Actuator Control (TAC) Module

In the center of the IP mounted on the shelf

Engine Controls Component Views in Engine Controls - 8.1 L

--

Throttle Actuator Control (TAC) Module C1 (10 cavities)

In the IP harness, to the throttle actuator control (TAC) module

--

Electronic Throttle Actuator Control Module Connector End Views in Engine Controls - 8.1 L

Throttle Actuator Control (TAC) Module C2 (16 cavities)

In the engine harness, to the throttle actuator control (TAC) module

--

Electronic Throttle Actuator Control Module Connector End Views in Engine Controls - 8.1 L

Throttle Actuator Control (TAC) Motor

On the top of the engine, on the left side of throttle body, part of the throttle body

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Throttle Position (TP) Sensor

On the front side of the throttle body

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Transmission Control Module (TCM)

On the left side of the exterior bulkhead, mounted on a bracket

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

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Transmission Control Module (TCM) C1 (32 cavities)

In the engine harness, to the TCM

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Related Connector End Views in Automatic Transmission - Allison

Transmission Control Module (TCM) C2 (32 cavities)

In the engine harness, to the TCM

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Related Connector End Views in Automatic Transmission - Allison

Transmission Fluid Pressure Switch Assembly

In the automatic transmission, attached to the bottom of the main valve body

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison

Transmission Fluid Pressure Switch C

In the automatic transmission, part of the transmission fluid pressure switch assembly

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison

Transmission Fluid Pressure Switch D

In the automatic transmission, part of the transmission fluid pressure switch assembly

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison

Transmission Fluid Pressure Switch E

In the automatic transmission, part of the transmission fluid pressure switch assembly

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison

Transmission Fluid Pressure Switch R

In the automatic transmission, part of the transmission fluid pressure switch assembly

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Internal Connector End Views in Automatic Transmission - Allison

Transmission Fluid Temperature (TFT) Gauge

On the left side of the IP, to the right of the steering column and right of the automatic transmission shift lever

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Transmission Fluid Temperature (TFT) Gauge Lamp

On the left side of the IP, to the right of the steering column and right of the automatic transmission shift lever, in the transmission fluid temperature (TFT) gauge

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Transmission Fluid Temperature (TFT) Sensor

On the lower right rear of the radiator, on the transmission oil cooler inlet fitting

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges, and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges, and Console

Turbine Shaft Speed (TSS) Sensor

On the automatic transmission, at the top of the left side

Automatic Transmission Electronic Component Views in Automatic Transmission - Allison

Automatic Transmission Related Connector End Views in Automatic Transmission - Allison

Turn Signal Switch

On the left side of the steering column, part of the turn signal/multifunction switch (K34), connector C1

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Turn Signal/Hazard Flasher Module

On the right side of the IP, under the access cover, in relay block #1, position B

Electrical Center Identification Views

Power and Grounding Connector End Views

Turn Signal/Multifunction Switch (K34)

On the left side of the steering column, on the multifunction lever

Lighting Systems Component Views in Lighting Systems

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Turn Signal/Multifunction Switch C1 (11 cavities) (K34)

In the IP harness, to the turn signal/multifunction switch

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Turn Signal/Multifunction Switch C2 (4 cavities) (K34)

In the IP harness, to the turn signal/multifunction switch

Cruise Control Component Views in Cruise Control

Cruise Control Connector End Views in Cruise Control

Upfitter Provision for Windshield Washer Motor

In the engine harness, the pink wire, taped to the main harness, approximately 15 cm (5.9 in) from pass-through P100, at the exterior bulkhead

Power and Grounding Component Views

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Vehicle Speed Sensor (VSS) (L18/MX4/MTW)

On the automatic transmission, on the lower right side of the tailshaft housing

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Vehicle Speed Sensor (VSS) (L18 w/o MX4/MTW)

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

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Vehicle Speed Sensor (VSS) (L18)

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

Engine Controls Component Views in Engine Controls - 8.1 L

Engine Controls Connector End Views in Engine Controls - 8.1 L

Vehicle Speed Sensor (VSS) (LG5)

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

Engine Controls Component Views in Engine Controls - 7.2 L (Caterpillar)

Engine Controls Connector End Views in Engine Controls - 7.2 L (Caterpillar)

Wheel Speed Sensor (WSS) - LF (JE3)

Mounted in the left front 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) - LF (JE5)

Mounted in the left front 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 (JE3)

Mounted in the left 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) - LR (JE5)

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) - RF (JE3)

Mounted in the right front 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) - RF (JE5)

Mounted in the right front 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 (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 (JE5)

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

C102 (7 cavities)

From the forward lamps harness, inline to the engine harness, on the right lower front of the hood, under the right headlamp

Harness Routing Views

Inline Harness Connector End Views

C104 (2 cavities) (LG5)

From the engine harness, inline to the radiator shutter jumper harness, on the top of the left front side of the engine

Harness Routing Views

Inline Harness Connector End Views

C106A (1 cavity) (LG5)

From the engine harness, inline to the engine harness, near the starter solenoid breakout

Harness Routing Views

Inline Harness Connector End Views

C106A (1 cavity) (LG5/KQR)

From the HD starter motor overcrank protection jumper harness, inline to the engine harness, near the starter solenoid breakout

Harness Routing Views

Inline Harness Connector End Views

C106B (1 cavity) (LG5)

From the engine harness, inline to the engine harness, near the starter solenoid breakout

Harness Routing Views

Inline Harness Connector End Views

C106B (1 cavity) (LG5/KQR)

From the HD starter motor overcrank protection jumper harness, inline to the engine harness, near the starter solenoid breakout

Harness Routing Views

Inline Harness Connector End Views

C109 (7 cavities) (L18)

From the engine harness, inline to the bank 1 ignition coil wiring harness

Harness Routing Views

Inline Harness Connector End Views

C110 (7 cavities) (L18)

From the engine harness, inline to the bank 2 ignition coil wiring harness

Harness Routing Views

Inline Harness Connector End Views

C112 (2 cavities) (LG5)

From the engine harness, inline to the engine exhaust brake harness, near the frame rail, by the starter

Harness Routing Views

Inline Harness Connector End Views

C116 (5 cavities)

From the engine harness, inline to the chassis harness, at the right frame rail, near the starter

Harness Routing Views

Inline Harness Connector End Views

C117 (3 cavities) (HPZ/HR1/HR2)

From the engine harness, inline to the two speed rear axle jumper harness, near the frame rail, by the starter

Harness Routing Views

Inline Harness Connector End Views

C119 (7 cavities) (JE3)

From the ABS harness, inline to the ABS chassis harness, in the engine compartment, on the left side of the bulkhead

Harness Routing Views

Inline Harness Connector End Views

C127 (3 cavities) (LG5)

On the engine harness, inline to the LG5 engine harness, near the Caterpillar intake air (IA) heater relay

Harness Routing Views

Inline Harness Connector End Views

C127 (10 cavities) (L18)

On the engine harness, inline to the fuel rail wiring harness, at the rear of the engine

Harness Routing Views

Inline Harness Connector End Views

C200 (56 cavities) (LG5)

From the IP harness, inline to the engine harness, under the right side of the IP

Harness Routing Views

Inline Harness Connector End Views

C200 (56 cavities) (L18)

From the IP harness, inline to the engine harness, under the right side of the IP

Harness Routing Views

Inline Harness Connector End Views

C202 (6 cavities) (LG5/JE5)

From the IP harness, inline to the IP-to-chassis jumper harness, under the IP, on the right side of the steering column

Harness Routing Views

Inline Harness Connector End Views

C202 (6 cavities) (L18/JE5)

From the IP harness, inline to the IP-to-chassis jumper harness, under the IP, on the right side of the steering column

Harness Routing Views

Inline Harness Connector End Views

C210 (23 cavities) (L18)

From the IP harness, inline to the engine harness, in the right center of the IP, behind fuse block - I/P

Harness Routing Views

Inline Harness Connector End Views

C212 (23 cavities) (Upfitter Connector)

From the IP harness, inline to the C212 shunt or to an upfitter installed harness, under the left side of the IP, by the left kick panel

Harness Routing Views

Inline Harness Connector End Views

C215 (2 cavities) (Automatic Transmission)

From the IP harness, inline to the clutch switch shunt, near the brake pedal

Harness Routing Views

Inline Harness Connector End Views

C215 (2 cavities) (Manual Transmission)

From the IP harness, inline to the clutch switch jumper, near the brake pedal

Harness Routing Views

Inline Harness Connector End Views

C217 (8 cavities) (LG5)

From the IP harness, inline to the engine harness, near the right side of the interior bulkhead

Harness Routing Views

Inline Harness Connector End Views

C218 (10 cavities) (LG5)

From the IP harness, inline to the engine harness, near the right side of the interior bulkhead

Harness Routing Views

Inline Harness Connector End Views

C223 (2 cavities) (JE3)

From the IP harness, inline to the park brake switch jumper, in the left kick panel, over the rear park brake lever

Harness Routing Views

Inline Harness Connector End Views

C225 (2 cavities) (LG5/MF1)

From the IP harness, inline to the clutch pedal position (CPP) switch shunt, near the brake pedal

Harness Routing Views

Inline Harness Connector End Views

C225 (2 cavities) (LG5/Manual Transmission)

From the IP harness, inline to the clutch pedal position (CPP) switch jumper, near the brake pedal

Harness Routing Views

Inline Harness Connector End Views

C232 (3 cavities) (JE3)

From the IP harness, inline to the ABS brake harness, near the left side of the interior bulkhead

Harness Routing Views

Inline Harness Connector End Views

C233 (2 cavities) (JE3)

From the IP harness, inline to the ABS brake harness, near the left side of the interior bulkhead

Harness Routing Views

Inline Harness Connector End Views

C234 (7 cavities) (JE3)

From the IP harness, inline to the ABS brake harness, near the left side of the interior bulkhead

Harness Routing Views

Inline Harness Connector End Views

C236 (4 cavities) (LG5 w/o KPJ)

From the IP harness, inline to the C236 shunt, tie-wrapped to the main harness approximately 15 cm (6 in) from the multifunction alarm module breakout

Harness Routing Views

Inline Harness Connector End Views

C235 (1 cavity)

From the engine harness, inline to the engine harness, between C200 and P100, power interconnect for ammeter circuit

Harness Routing Views

Inline Harness Connector End Views

C400 (1 cavity) (LG5)

On the positive battery cable harness, inline to the engine harness, near the battery.

Harness Routing Views

Inline Harness Connector End Views

C401 (2 cavities) (LG5)

On the positive battery cable harness, inline to the engine harness, near the battery

Harness Routing Views

Inline Harness Connector End Views

C401 (2 cavities) (L18)

On the positive battery cable, inline to the engine harness, behind the left rear side of the engine

Harness Routing Views

Inline Harness Connector End Views

C402 (1 cavity) (LG5)

On the positive battery cable harness, inline to the engine harness, near the battery

Harness Routing Views

Inline Harness Connector End Views

C404 (3 cavities) (HPZ)

In two speed rear axle jumper harness, inline to the two speed rear axle harness at the inboard

Harness Routing Views

Inline Harness Connector End Views

C408 (2 cavities) (LG5/MF1)

From the engine harness, inline to the automatic transmission (A/T) modulator harness, at the right frame rail, near the starter

Harness Routing Views

Inline Harness Connector End Views

C408 (2 cavities) (L18/MF1)

From the engine harness, inline to the transmission harness, on the left side of the engine, at the bellhousing

Harness Routing Views

Inline Harness Connector End Views

C409 (8 cavities) (LG5 w/oMX4/MTW)

From the engine harness, inline to the transmission harness, on the left side of the engine, at the bellhousing

Harness Routing Views

Inline Harness Connector End Views

C409 (8 cavities) (L18 w/o MX4/MTW)

From the engine harness, inline to the transmission harness, on the left side of the engine, at the bellhousing

Harness Routing Views

Inline Harness Connector End Views

C412 (2 cavities)

From the chassis harness, inline to the air brake dryer harness, at the inboard

Harness Routing Views

Inline Harness Connector End Views

D101 (Ether Injector Diode) (LG5/KTE)

In the engine harness, in the main harness, inline, approximately 20 cm (7.9 in) from P100, toward the engine

Harness Routing Views

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D200 (Charge Indicator Diode) (LG5)

In the IP harness, in the main harness, inline, approximately 4 cm (1.6 in) to the left of the data link connector (DLC) breakout

Harness Routing Views

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D201 (ABS Diode) (JE3)

In the IP harness, approximately 4 cm (1.6 in) from fuse block - I/P breakout

Harness Routing Views

--

G100 (LG5)

From the starter motor end ground stud (G101), to the right frame rail ground (G100)

Power and Grounding Component Views

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G100 (LG5/KQR)

From the starter motor side ground stud (G103), to the right frame rail ground (G100)

Power and Grounding Component Views

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G101 (LG5)

From the engine harness, to the starter motor end ground stud (G101) to the right frame rail ground (G100)

Power and Grounding Component Views

--

G102 (L18)

From the engine harness, to the back of the left cylinder head

Power and Grounding Component Views

--

G103 (LG5/KQR)

From the starter motor right side ground stud (G103), to the right frame rail ground (G100)

Power and Grounding Component Views

--

G103 (L18)

From the starter motor side ground stud (G103), to the right frame rail ground (G100)

Power and Grounding Component Views

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G105

The body ground strap and the air-ABS harness, from the outboard side of the left frame rail (G105) , to the lower left side of the exterior bulkhead (G107)

Power and Grounding Component Views

--

G107

The body ground strap from the lower left side of the exterior bulkhead (G107) to the outboard side of the left frame rail (G105)

Power and Grounding Component Views

--

G108 (JE3)

From the engine harness, at the upper left side of the bulkhead, to of the power brake (P/B) booster pump housing

Power and Grounding Component Views

--

G117 (LG5)

The engine harness ground and generator ground strap, at the right side of the engine (G117) to the generator (G119)

Power and Grounding Component Views

--

G117 (L18)

The generator ground strap, from the right side of the engine (G117) to the generator (G119)

Power and Grounding Component Views

--

G119 (LG5)

The generator ground strap, from the right side of the engine (G117) to the generator (G119)

Power and Grounding Component Views

--

G119 (L18)

The generator ground strap, from the right side of the engine (G117) to the generator (G119)

Power and Grounding Component Views

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G120 (L18)

The ground cable, at the lower left side of the engine (G120) , to the left frame rail (G121)

Power and Grounding Component Views

--

G121 (L18)

The ground cable, at the left frame rail (G121) to the lower left side of the engine (G120)

Power and Grounding Component Views

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G124 (LG5/KQR)

From the starter solenoid ground stud (G124), to the starter motor end ground stud (G101)

Power and Grounding Component Views

--

G207 (JE3)

From the park brake switch jumper harness, near the left kick panel, at the park brake switch mounting screw, on the right side of the park brake lever bracket

Power and Grounding Component Views

--

G208

From the IP harness, on the top left side of the steering column

Power and Grounding Component Views

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G401

From the negative battery cable, to the left frame rail

Power and Grounding Component Views

--

G401 (LG5)

In the engine harness, approximately

Power and Grounding Component Views

--

G402 (LG5)

In the engine harness, Inline to the

Power and Grounding Component Views

--

G405 (LG5)

In the engine harness, approximately

Power and Grounding Component Views

--

G412

From the ABS chassis harness, to the electronic brake control module (EBCM) bracket

Power and Grounding Component Views

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G413

From the battery negative cable extension, at the left frame rail, to the right frame rail (G414)

Power and Grounding Component Views

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G414

From the battery negative cable extension, at the right frame rail, to the left frame rail (G413)

Power and Grounding Component Views

--

P100

On the right side of the bulkhead

Harness Routing Views

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P102

On the right side of the bulkhead

Harness Routing Views

--

P103

On the left side of the bulkhead

Harness Routing Views

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R401 (LG5)

In the engine harness, in the main harness, inline, approximately

Harness Routing Views

--

R402 (LG5)

In the engine harness, in the main harness, inline, approximately

Harness Routing Views

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S105

In the forward lamps harness, approximately 15 cm (5.9 in) to the headlamp, the right high/ low beam breakout

Harness Routing Views

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S106

In In the engine harness, in the main harness, approximately 8 cm (3.2 in) from the generator inline fuse, toward its breakout

Harness Routing Views

--

S109

In the forward lamps harness, approximately 20 cm (7.9 in) to the park and turn left front signal lamp

Harness Routing Views

--

S120 (L18/MX4/MTW)

In the engine harness, approximately

Harness Routing Views

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S121 (L18)

In the engine harness, approximately 16 cm (6.3 in) from the starter solenoid terminal C2

Harness Routing Views

--

S121 (LG5)

In the engine harness, approximately 16 cm (6.3 in) from the starter solenoid terminal C2

Harness Routing Views

--

S122 (L18)

In the engine harness, approximately 36 cm (14.2 in) from the starter solenoid breakout

Harness Routing Views

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S122 (LG5)

In the engine harness, approximately 18 cm (7.1 in) from the G401, G402 breakout

Harness Routing Views

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S123 (L18)

In the engine harness, approximately 10 cm (3.9 in) from the vacuum tube breakout

Harness Routing Views

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S123 (LG5)

In the engine harness, approximately

Harness Routing Views

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S124 (L18)

In the engine harness, approximately 5 cm (2.0 in) from the horns breakout

Harness Routing Views

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S124 (LG5)

In the engine harness, approximately 49 cm (19.3 in) back from the horns breakout

Harness Routing Views

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S126 (L18)

In the engine harness, approximately 21 cm (8.3 in) from the engine oil pressure (EOP) sensor breakout, toward the bulkhead

Harness Routing Views

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S126 (LG5/HPZ)

In the engine harness, approximately 26 cm (10.4 in) from the either injector/ engine metal temperature (ECT) switch breakout, toward the bulkhead

Harness Routing Views

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S127 (LG5)

In the engine harness, approximately 4 cm (1.6 in) forward of the engine metal temperature switch breakout

Harness Routing Views

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S127 (L18)

In the engine harness, approximately

Harness Routing Views

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S130 (L18)

In the engine harness, approximately 12 cm (4.7 in) from the manifold absolute pressure (MAP) sensor breakout off of the main harness

Harness Routing Views

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S131 (L18)

In the engine harness, approximately

Harness Routing Views

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S132 (L18/MX4/MTW)

In the engine harness, approximately

Harness Routing Views

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S133 (L18/MX4/MTW)

In the engine harness, approximately

Harness Routing Views

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S134 (L18/MX4/MTW)

In the engine harness, approximately

Harness Routing Views

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S135 (L18)

In the engine harness, approximately

Harness Routing Views

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S136 (L18)

In the engine harness, approximately

Harness Routing Views

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S137 (L18)

In the engine harness, approximately

Harness Routing Views

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S137 (LG5)

In the engine harness, approximately

Harness Routing Views

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S138 (L18)

In the engine harness, approximately 4 cm (1.6 in) from the generator harness breakout

Harness Routing Views

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S138 (LG5)

In the engine harness, approximately 11 cm (4.3 in) from the main harness, toward the forward lamps harness connector

Harness Routing Views

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S141 (L18)

In the engine harness, approximately

Harness Routing Views

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S142 (L18)

In the engine harness, approximately 4 cm (1.6 in) from the throttle position (TP) sensor, toward the breakout

Harness Routing Views

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S142 (LG5)

In the engine harness, approximately 4 cm (1.6 in)

Harness Routing Views

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S145 (L18)

In the bank 2 ignition coil wiring harness, approximately 14 cm (5.5 in) from the main connector

Harness Routing Views

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S156 (L18)

In the bank 2 ignition coil wiring harness, approximately 20 cm (7.9 in) from the ignition coil - 2 connector

Harness Routing Views

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S157 (L18)

In the bank 1 ignition coil wiring harness, approximately 20 cm (7.9 in) from the ignition coil - 7 connector

Harness Routing Views

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S169 (LG5)

In the engine harness, approximately 4 cm (1.6 in) before from the first breakout toward P100 and P103

Harness Routing Views

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S170 (JE5)

In the air-ABS harness, approximately 87 cm (34.2 in) from electronic brake control module (EBCM)

Harness Routing Views

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S171 (JE5)

In the air-ABS harness, approximately 100 cm (39.4 in) from the electronic brake control module (EBCM)

Harness Routing Views

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S172 (JE5)

In the air-ABS harness, approximately 94 cm (36.8 in) from electronic brake control module (EBCM)

Harness Routing Views

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S173 (JE5)

In the air-ABS harness, approximately 113 cm (44.5 in) from electronic brake control module (EBCM)

Harness Routing Views

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S174 (JE5)

In the air-ABS harness, approximately 107 cm (41.9 in) from electronic brake control module (EBCM)

Harness Routing Views

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S176 (L18)

In the engine harness, approximately 19.5 cm (7.7 in) from the fuel rail wiring harness connector breakout towards powertrain control module (PCM)

Harness Routing Views

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S177 (L18)

In the engine harness, approximately 26 cm (10.2 in) from the fuel rail wiring harness connector breakout towards powertrain control module (PCM)

Harness Routing Views

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S178 (L18)

In the bank 2 ignition coil wiring harness, approximately 8 cm (3.1 in) inside the end of the conduit at the ignition coil - 6 and 8 breakouts

Harness Routing Views

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S179 (L18)

In the bank 1 ignition coil wiring harness, approximately 8 cm (3.1 in) inside the end of the conduit at the ignition coil - 1 and 3 breakouts

Harness Routing Views

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S181 (L18)

In the bank 1 ignition coil wiring harness, approximately 14 cm (5.5 in) from the main connector

Harness Routing Views

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S182 (LG5)

In the engine harness, approximately 16 cm (6.3 in) from generator terminal C1

Harness Routing Views

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S184 (L18)

In the engine harness, approximately 13 cm (4.9 in) from the breakout in the line for the intake air temperature (IAT)/mass air flow (MAF) sensor

Harness Routing Views

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S186 (L18)

In the engine harness, approximately 6.5 cm (2.5 in) from the P102 breakout toward the P100

Harness Routing Views

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S187 (L18)

In the fuel rail wiring harness, approximately 8 cm (3 in) from the fuel injector - 5 breakout, toward fuel injector - 3

Harness Routing Views

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S188 (L18)

In the fuel rail wiring harness, approximately 7 cm (2.5 in) from fuel injector - 6 breakout, toward fuel injector - 4

Harness Routing Views

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S201

In the IP harness, approximately 35 cm (13.8 in) from C200

Harness Routing Views

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S202 (L18)

In the IP harness, approximately 35 cm (13.8 in) from C200

Harness Routing Views

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S203 (LG5)

In the IP harness, approximately 4 cm (1.6 in) from the fuse block - I/P breakout

Harness Routing Views

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S204 (LG5)

In the IP harness, approximately 4 cm (1.6 in) to the left of the fuse block - I/P breakout

Harness Routing Views

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S206 (L18)

In the IP harness, approximately 14 cm (5.5 in) to the right of the hazard switch breakout

Harness Routing Views

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S206 (LG5)

In the IP harness, approximately 14 cm (5.5 in) to the right of the hazard switch breakout

Harness Routing Views

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S207 (L18)

In the IP harness, approximately 14 cm (5.5 in) to the right of the hazard switch breakout

Harness Routing Views

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S207 (LG5)

In the IP harness, approximately 14 cm (5.5 in) to the right of the hazard switch breakout

Harness Routing Views

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S208

In the IP harness, approximately 9 cm (3.5 in) to the right of the hazard switch breakout

Harness Routing Views

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S209 (L18)

In the IP harness, approximately 7 cm (2.8 in) to the right of the hazard switch breakout

Harness Routing Views

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S209 (LG5)

In the IP harness, approximately 7 cm (2.8 in) to the right of the hazard switch breakout

Harness Routing Views

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S210 (L18)

In the IP harness, approximately 4 cm (1.6 in) to the right of the hazard switch breakout

Harness Routing Views

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S210 (LG5)

In the IP harness, approximately 4 cm (1.6 in) to the right of the hazard switch breakout

Harness Routing Views

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S211 (L18)

In the IP harness, approximately 4 cm (1.6 in) to the left of the hazard switch breakout

Harness Routing Views

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S211 (LG5)

In the IP harness, approximately 4 cm (1.6 in) to the left of the hazard switch breakout

Harness Routing Views

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S212 (L18)

In the IP harness, approximately 7 cm (2.6 in) to the left of the hazard switch breakout

Harness Routing Views

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S212 (LG5)

In the IP harness, approximately 7 cm (2.6 in) to the left of the hazard switch breakout

Harness Routing Views

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S213 (L18)

In the IP harness, approximately 9 cm (3.5 in) to the left of the hazard switch breakout

Harness Routing Views

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S213 (LG5)

In the IP harness, approximately 9 cm (3.5 in) to the left of the hazard switch breakout

Harness Routing Views

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S214 (L18)

In the IP harness, approximately 25 cm (9.8 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S214 (LG5)

In the IP harness, approximately 25 cm (9.8 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S215 (L18)

In the IP harness, approximately 22 cm (8.7 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S217 (L18)

In the IP harness, approximately 19 cm (7.5 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S217 (LG5)

In the IP harness, approximately 19 cm (7.5 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S218 (L18)

In the IP harness, approximately 17 cm (6.7 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S218 (LG5)

In the IP harness, approximately 17 cm (6.7 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S220 (L18)

In the IP harness, approximately 15 cm (5.9 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S220 (LG5)

In the IP harness, approximately 15 cm (5.9 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S221 (L18)

In the IP harness, approximately 12 cm (4.7 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S221 (LG5)

In the IP harness, approximately 12 cm (4.7 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S222 (L18)

In the IP harness, approximately 11 cm (4.3 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S222 (LG5)

In the IP harness, approximately 11 cm (4.3 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S223 (L18)

In the IP harness, approximately 7 cm (2.8 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S223 (LG5)

In the IP harness, approximately 7 cm (2.8 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S224 (L18)

In the IP harness, approximately 4 cm (1.6 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S224 (LG5)

In the IP harness, approximately 4 cm (1.6 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S227 (L18)

In the IP harness, approximately 57 cm (22.4 in) from the headlamp dimmer switch breakout

Harness Routing Views

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S230

In the IP harness, approximately 4 cm (1.6 in) to the right of the instrument panel cluster (IPC) connector breakout

Harness Routing Views

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S231 (L18)

In the IP harness, approximately 66 cm (26.0 in) from the main harness, toward the IP harness connector

Harness Routing Views

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S231 (LG5)

In the IP harness, approximately 66 cm (26.0 in) from the main harness, toward the IP harness connector

Harness Routing Views

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S232 (L18)

In the IP harness, approximately 59 cm (23.2 in) from the main harness, toward the IP harness connector

Harness Routing Views

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S232 (LG5)

In the IP harness, approximately 59 cm (23.2 in) from the main harness, toward the IP harness connector

Harness Routing Views

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S233 (L18)

In the IP harness, approximately 9 cm (3.5 in) to the right of the daytime running lamps (DRL) module breakout

Harness Routing Views

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S233 (LG5)

In the IP harness, approximately 9 cm (3.5 in) to the right of the daytime running lamps (DRL) module breakout

Harness Routing Views

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S234 (JE3)

In the IP harness, approximately 4 cm (1.6 in) to the right of the daytime running lamps (DRL) module breakout

Harness Routing Views

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S234 (JE3)

In the IP harness, approximately 59 cm (23.2 in) from the main harness, toward the IP harness connector

Harness Routing Views

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S235 (JE3)

In the IP harness, at the cathode (-) end of the ABS diode (D201), approximately 4 cm (1.6 in) from fuse block - 1, toward the bulkhead

Harness Routing Views

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S236 (JE3)

In the IP harness, at the anode (+) end of the ABS diode (D201), approximately 4 cm (1.6 in) from fuse block - 1, toward the bulkhead

Harness Routing Views

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S240 (LG5)

In the engine harness, at the anode (+) end of the ether injector diode (D101), approximately 8 cm (3.1 in) from the ether injector control valve breakout

Harness Routing Views

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S241 (LG5)

In the engine harness, at the cathode (-) end of the ether injector diode (D101), approximately 11 cm (4.3 in) from the ether injector control valve breakout

Harness Routing Views

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S243

In the IP harness, approximately 26 cm (10.2 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S244

In the IP harness, approximately 28.5 cm (11.2 in) to the right of the data link connector (DLC) breakout

Harness Routing Views

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S245

In the IP harness, approximately 4 cm (1.6 in) to the right of the stoplamp switch interface module breakout

Harness Routing Views

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S246 (LG5/JE3)

In the IP harness, approximately

Harness Routing Views

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S247 (LG5)

In the IP harness, approximately 15 cm (5.9 in) to the left of the multifunction alarm module breakout

Harness Routing Views

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S248 (LG5)

In the IP harness, approximately 12 cm (4.7 in) to the left of the multifunction alarm module breakout

Harness Routing Views

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S249 (LG5)

In the IP harness, approximately 20 cm (7.9 in) to the left of the multifunction alarm module breakout

Harness Routing Views

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S250 (LG5/JE5)

In the IP harness, approximately 16 cm (6.3 in) from the exhaust brake relay connector, by fuse block - 1

Harness Routing Views

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S252 (LG5)

In the IP harness, approximately 9 cm (3.5 in) from fuse block - 1, toward relay block #1

Harness Routing Views

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S258

In the IP harness, approximately 9 cm (3.5 in) to the right of the hazard switch breakout

Harness Routing Views

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S404 (LG5)

In the positive battery cable, at the end of the gray fusible link R

Harness Routing Views

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S405

In the fuel tank harness, approximately 196 cm (77.1 in) to the rear of the fuel harness connector

Harness Routing Views

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S410 (LG5)

In the engine harness, approximately

Harness Routing Views

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S411 (LG5)

In the engine harness, approximately

Harness Routing Views

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S412 (LG5)

In the engine harness, approximately

Harness Routing Views

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S414 (LG5)

In the engine harness, approximately

Harness Routing Views

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S416 (LG5)

In the engine harness, approximately

Harness Routing Views

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S418 (HPZ)

In the two speed rear axle harness, approximately 65 cm (25.6 in) forward of the rear axle shift relay - two speed breakout

Harness Routing Views

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S420 (LG5)

In the engine harness, approximately

Harness Routing Views

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S421 (LG5)

In the engine harness, approximately

Harness Routing Views

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