GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

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

Electronic Traction/Suspension Control Switch

Center console, between the shifter and storage compartment

Power and Grounding Component Views in Wiring Systems

Body Control System Connector End Views in Body Control Systems

Instrument Panel Electrical Center

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

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-

LF Electronic Suspension Position Sensor

LH front RH side of the shock spring

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Suspension Controls Connector End Views in Real Time Damping

LF Shock Absorber Solenoid

Bottom of the LF shock absorber

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Suspension Controls Connector End Views in Real Time Damping

LR Electronic Suspension Position Sensor

LH rear RH side of the shock spring

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Suspension Controls Connector End Views in Real Time Damping

LR Shock Absorber Solenoid

Bottom of the LR shock absorber

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Suspension Controls Connector End Views in Real Time Damping

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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RF Electronic Suspension Position Sensor

RH front RH side of the shock spring

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Suspension Controls Connector End Views in Real Time Damping

RF Shock Absorber Solenoid

Bottom of the RF shock absorber

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Suspension Controls Connector End Views in Real Time Damping

RR Electronic Suspension Position Sensor

RH rear RH side of the shock spring

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Suspension Controls Connector End Views in Real Time Damping

RR Shock Absorber Solenoid

Bottom of the RR shock absorber

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Suspension Controls Connector End Views in Real Time Damping

Star Connector #1

Instrument panel harness, serial data

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Power and Grounding Connector End Views in Wiring Systems

Star Connector #2

Instrument panel harness, serial data

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Power and Grounding Connector End Views in Wiring Systems

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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C101 (3 cavities)

Transmission harness to LF electronic suspension position sensor

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C103 (2 cavities)

Transmission harness to LF shock absorber solenoid

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C104 (3 cavities)

Transmission harness to RF electronic suspension position sensor

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C106 (2 cavities)

Transmission harness to RF shock absorber solenoid

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C142 (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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-

C401 (3 cavities)

Transmission harness to LR electronic suspension position sensor

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C403 (2 cavities)

Transmission harness to LR shock absorber solenoid

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C404 (3 cavities)

Transmission harness to RR electronic suspension position sensor

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C406 (2 cavities)

Transmission harness to RR shock absorber solenoid

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P200

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

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P401

Transmission harness, LH rear of vehicle

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S204

Instrument panel harness, approximately 7.5 cm from the BEC connector C1 on breakout that goes across the vehicle (CKT 817)

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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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G402

Transmission harness, RH rear of vehicle

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