GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Body Control Module (BCM)

RH footwell, mounted to the toe board, behind the carpet

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Body Control System Connector End Views in Body Control Systems

Compact Disk Player

Rear compartment, in the center storage compartment

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Entertainment Connector End Views in Entertainment

Data Link Connector (DLC)

LH side of instrument panel, below the steering column

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Electronic Brake Traction Control Module (EBTCM)

Rear of the vehicle, behind the center of the axle

Antilock Brakes System Component Views in Antilock Brake System

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Electronic Suspension Control (ESC) Module

Rear compartment, inside the LH storage compartment

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Suspension Controls Connector End Views in Real Time Damping

HVAC Control Head (CJ2)

Center of the instrument panel, under the radio

Power and Grounding Component Views in Wiring Systems

HVAC Connector End Views in HVAC Automatic

Inflatable Restraint Sensing and Diagnostic Module

Behind the center of the Instrument Panel, under the HVAC control head

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SIR Connector End Views in SIR

Instrument Cluster

Top LH side of instrument panel, behind the steering wheel

Power and Grounding Component Views in Wiring Systems

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Instrument Panel Electrical Center

RH footwell, mounted on the toe board, behind the carpet

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LH Door Control Module (DCM)

Behind the LH door trim panel, bottom center of the door

Entertainment Component Views in Entertainment

Power Door Systems Connector End Views in Door Systems

LH Seat Control Module (SCM)

Under the front of the LH seat

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Power Seat Connector End Views in Seats

Powertrain Control Module (PCM)

RH side of engine compartment, between the wheelhouse and the dash panel, below the battery

Engine Controls Component Views in Engine Controls 5.7L

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Pressure Control Solenoid (PC Sol) Valve

Inside the transmission

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Radio

Center of Instrument Panel above the HVAC control head

Power and Grounding Component Views in Wiring Systems

Entertainment Connector End Views in Entertainment

Remote Control Door Lock Receiver

LH side of the rear compartment, behind the side trim panel

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Tire Pressure Monitoring System Connector End Views in Low Tire Pressure Monitor System

RH Door Control Module (DCM)

Behind the RH door trim panel, bottom center of the door

Entertainment Component Views in Entertainment

Power Door Systems Connector End Views in Door Systems

Star Connector #1

Instrument panel harness, serial data

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Data Link Communications Connector End Views in Wiring Systems

Star Connector #2

Instrument panel harness, serial data

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Data Link Communications Connector End Views in Wiring Systems

Throttle Actuator Control (TAC) Module

Inside the RH front fender, attached to the Powertrain Control Module (PCM)

Engine Controls Component Views in Engine Controls 5.7L

Engine Controls Connector End Views in Engine Controls 5.7L

Underhood Electrical Center

RH side of the engine compartment, between the wheelhouse and the dash panel, front of the battery

Power and Grounding Component Views in Wiring Systems

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C142 (20 cavities)

Engine harness to transmission harness, RH side rear of engine compartment

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C144 (20 cavities)

Engine harness to transmission harness, RH side rear of engine compartment

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C146 (20 cavities)

Instrument panel harness to transmission harness, RH side rear of engine compartment

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C150 (10 cavities)

Instrument panel harness to engine harness, RH side rear of engine compartment

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C200 (6 cavities)

Instrument panel harness to RH door harness, in box on A-Pillar on RH Door

Entertainment Component Views in Entertainment

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C201 (6 cavities)

Instrument panel harness to LH door harness, in box on A-Pillar or LH Door

Entertainment Component Views in Entertainment

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C202 (10 cavities)

Instrument panel harness to RH door harness, in box on A-Pillar on RH Door

Entertainment Component Views in Entertainment

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C203 (10 cavities)

Instrument panel harness to LH door harness, in box on A-Pillar or LH Door

Entertainment Component Views in Entertainment

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C204 (4 cavities)

Instrument panel harness to front body harness

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C301 (6 cavities)

Front body harness to LH seat harness, under LH seat

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P200

Instrument panel harness, RH side of Instrument panel on dash panel

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P201

Instrument panel harness, LH side of Instrument panel in A-Pillar

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P202

Instrument panel harness, RH side of Instrument panel in A-Pillar

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P401

Transmission harness, LH rear of vehicle

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P501

In front of the LH door

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P600

In front of the RH door

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S206

Instrument panel harness, approximately 14.0 cm right of the blower motor control module connector breakout (CKT 1132)

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G104

Instrument panel harness, Rear of RH wheelhouse, between battery and U/H electrical center

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