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

Brake Fluid Level Indicator Switch

LH rear engine compartment, on the LH side of the brake fluid reservoir

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Hydraulic Brake Connector End Views in Hydraulic Brakes

Data Link Connector (DLC)

LH side of instrument panel, below the steering column

-

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Engine Coolant Level (ECL) Indicator Switch

Bottom of the engine coolant reservoir

Power and Grounding Component Views in Wiring Systems

Instrument Cluster: Analog Connector End Views in Instrument Panel, Gauges and Console

Engine Oil Temperature (EOT) Gauge Sensor

Rear of the engine, bottom LH side

Engine Controls Component Views in Engine Controls 5.7L

Instrument Cluster: Analog Connector End Views in Instrument Panel, Gauges and Console

Fog Lamp\Rear Compartment Lid Release Switch

Left of the steering column, mounted in the instrument panel

Power and Grounding Component Views in Wiring Systems

Lighting Systems Connector End Views in Lighting Systems

Hazard Warning Switch

Top center of Instrument Panel

Power and Grounding Component Views in Wiring Systems

Lighting Systems Connector End Views in Lighting Systems

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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-

Park Brake Switch

Center console, below the park brake

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Hydraulic Brake Connector End Views in Hydraulic Brakes

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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Seat Belt Switch

LH passenger compartment, part of the LH seat belt buckle assembly

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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

Turn Signal Switch

LH stalk of the steering column

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Lighting Systems Connector End Views in Lighting 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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Windshield Washer Solvent Level Switch

Rear side of the washer fluid reservoir

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C150 (10 cavities)

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

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-

C209 (23 cavities)

Instrument panel harness to steering column harness, at the base of steering column - headlamp and turn signal switches

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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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-

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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-

SP100 - Splice Pack #100

Forward lamp harness, attached to G102

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-

SP101 - Splice Pack #101

Forward lamp harness, attached to G101

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-

SP201 - Splice Pack #201

Instrument panel harness, part of G201

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-

SP208 - Splice Pack #208

Instrument panel harness, RH side of Instrument panel. Grounded at G104

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G101

On frame rail between LH headlamp assembly and generator. SP101 is attached

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-

G102

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

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G104

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

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G201

Instrument panel harness, at base of LH A Pillar. SP201 is attached

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