GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Brake Fluid Level Switch

Left rear of the engine compartment, in the master cylinder reservoir

Hydraulic Brake Component Views in Hydraulic Brakes

Hydraulic Brake Connector End Views in Hydraulic Brakes

Coolant Level Switch

Left side of the engine compartment, in the bottom of the coolant reservoir

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Data Link Connector (DLC)

Under left side of the instrument panel near the steering column

Data Link Communications Component Views in Wiring Systems

Data Link Communications Connector End Views in Wiring Systems

Electronic Brake and Traction Control Module (EBTCM)

Left front corner of the engine compartment, below the air cleaner housing

Antilock Brake System Component Views in Antilock Brake Systems

Antilock Brake System Connector End Views in Antilock Brake Systems

Engine Oil Level Switch

Bottom front of the engine, near the A/C compressor

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

Engine Oil Pressure Switch

Center front of the engine, near the engine oil filler adapter

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

Fuel Tank Unit

Under the center rear of the vehicle, in the fuel tank

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

Ignition Switch

Left side of the instrument panel, right of the steering column in the instrument panel

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Engine Electrical Connector End Views in Engine Electrical

Instrument Cluster

Left side of the instrument panel, above the steering column

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Instrument Panel, Gages, and Console Connector End Views

Instrument Panel Integration Module (IPM)

Center of the instrument panel, above the radio (part of the climate control panel)

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Body Control System Connector End Views in Body Control Systems

LH Driver Information Center (DIC) Switch

Left side of the instrument panel, near the left side of the instrument panel cluster

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Instrument Panel, Gages, and Console Connector End Views

LH Front Door Jamb Switch

Rear of the left front door, behind the door trim panel on the door latch

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LH Front Door Module

Front of the left front door, behind the door trim panel near the radio speaker

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

LH Front Seat Belt Switch

Part of the Seat Belt Buckle, on the right hand side of drivers seat.

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Instrument Panel, Gages, and Console Connector End Views

LH Rear Door Jamb Switch

Rear of the left rear door, behind the door trim panel on the door latch

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LH Rear Door Module (LRDM)

Front of the left rear door, behind the door trim panel near the radio speaker

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Park Brake Switch

Under left side of the instrument panel, on the park brake pedal

Hydraulic Brake Component Views in Hydraulic Brakes

Hydraulic Brake Connector End Views in Hydraulic Brakes

Powertrain Control Module (PCM)

Left front corner of the engine compartment, below the air cleaner

Engine Controls Component Views in Engine Controls

Powertrain Control Module Connector End Views in Engine Controls

Rear Compartment Lid Release Solenoid

Center rear of the rear compartment lid, on the rear compartment lid latch

Body Rear End Component Views in Body Rear End

Body Rear End Connector End Views in Body Rear End

Rear Integration Module (RIM)

Right rear of the passenger compartment, behind the rear seat back

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control Systems

Rear Junction Block

Left rear of the passenger compartment, under the rear seat

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

RH Driver Information Center (DIC) Switch

Right side of the instrument panel, near the right side of the instrument panel cluster

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Instrument Panel, Gages, and Console Connector End Views

RH Front Door Jamb Switch

Rear of the right front door, behind the door trim panel on the door latch

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RH Front Door Module (RFDM)

Front of the right front door, behind the door trim panel near the radio speaker

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

RH Front Seat Belt Switch

Part of the Seat Belt Buckle, on the left hand side of passenger seat.

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Instrument Panel, Gages, and Console Connector End Views

RH Rear Door Jamb Switch

Rear of the right rear door, behind the door trim panel on the door latch

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

RH Rear Door Module (RRDM)

Front of the right rear door, behind the door trim panel near the radio speaker

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Underhood Junction Block

Right side of the engine compartment, near the power steering pump

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Windshield Washer Fluid Level Sensor

Right side of the engine compartment, on the top of the windshield washer reservoir

Wiper/Washer Component Views

Instrument Panel, Gages, and Console Connector End Views

C101 (40 cavities)

Engine harness to body harness, left side of the engine compartment near the coolant reservoir

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200 (30 cavities)

Instrument panel harness to body harness, under left side of the instrument panel near the park brake pedal

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C201 (30 cavities

Instrument panel harness to body harness, under right side of the instrument panel near the rear of the instrument panel compartment

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Inline Harness Connector End Views in Wiring Systems

C420

Fuel tank harness to body harness, under right side rear of the wheelhouse

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Inline Harness Connector End Views in Wiring Systems

C500

Left front door harness to body harness, left front corner of the passenger compartment near the P500 pass through

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C600

Right front harness to body harness, right front corner of the passenger compartment near the P600 pass through

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C700

Left rear door harness to body harness, left side of the passenger compartment in the door pillar near the P700 pass through

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C801

Right rear door harness to body harness, right side of the passenger compartment, in the door pillar near the P800 pass through

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G101

Left side of the engine compartment, below the engine coolant reservoir

Power and Grounding Component Views in Wiring Systems

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G103

Lower right rear of the engine, near the power steering rack

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G105

Right side of the engine compartment, below the underhood bussed electrical center

Power and Grounding Component Views in Wiring Systems

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G200

Left front corner of the passenger compartment, under the front of the sill trim plate

Power and Grounding Component Views in Wiring Systems

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G201

Right front corner of the passenger compartment, under the front of the sill trim plate

Power and Grounding Component Views in Wiring Systems

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G402

Left rear corner of the rear compartment, near the C400 connector

Power and Grounding Component Views in Wiring Systems

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P100

Right lower corner of the engine compartment block head, near the base of the strut tower

Harness Routing Views in Wiring Systems

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P101

Left lower corner of the engine compartment block head, near the base of the strut tower

Harness Routing Views in Wiring Systems

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P401

Left side of the rear compartment, near the wheelhouse

Harness Routing Views in Wiring Systems

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P500

Left front door jamb, near the door hinges

Harness Routing Views in Wiring Systems

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P600

Right front door jamb, near the door hinges

Harness Routing Views in Wiring Systems

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P700

Left rear door jamb, near the door hinges

Harness Routing Views in Wiring Systems

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P800

Right rear door jamb, near the door hinges

Harness Routing Views in Wiring Systems

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S201

Body harness, left side of the instrument panel approximately 26 cm (10.2 in) from P101

Harness Routing Views in Wiring Systems

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S203

Instrument panel harness, center of the instrument panel approximately 55.5 cm (21.9 in) from the radio connector

Harness Routing Views in Wiring Systems

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S204

Instrument panel harness, center of the instrument panel approximately 64.5 cm (37.2 in) from the radio connector

Harness Routing Views in Wiring Systems

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S210

Instrument panel harness, left side of the instrument panel approximately 22 cm (8.7 in) from the left solar sensor harness breakout

Harness Routing Views in Wiring Systems

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S212

Instrument panel harness, right side of the instrument panel approximately 44 cm (17.3 in) from the right driver information center switch

Harness Routing Views in Wiring Systems

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S213

Instrument panel harness, center of the instrument panel, approximately 88 cm (34.6 in) from the radio connector

Harness Routing Views in Wiring Systems

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S303

Body harness, left side of the passenger compartment approximately 14 cm (5.5 in) from the C300 connector harness breakout

Harness Routing Views in Wiring Systems

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