GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

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

Data Link Connector (DLC)

LH side of instrument panel, below the steering column

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Data Link Communications Connector End Views in Data Link Communications

Engine Oil Temperature (EOT) Gauge Sensor

Rear of the engine, bottom LH side

Engine Controls Component Views in Engine Controls 5.7L

Instrument Cluster and HUD Connector End Views

Hazard Warning Switch

Top center of instrument panel

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Head Up Display (HUD)

Top LH side of instrument panel, behind instrument cluster

Instrument Cluster and HUD Component Views

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Instrument Cluster

Top LH side of instrument panel, behind the steering wheel

Instrument Cluster and HUD Component Views

Instrument Cluster and HUD Connector End Views

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)

Behind the RF fender, between the wheelhouse and the dash panel, below the battery

Engine Controls Component Views in Engine Controls 5.7L

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RH Driver Information Center (DIC) Switch

LH side of the instrument panel, RH side of the instrument cluster

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Star Connector #1

Instrument panel harness, serial data, LH side of the body control module (BCM)

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Underhood Electrical Center

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

Engine Controls Component Views in Engine Controls 5.7L

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Vehicle Speed Sensor (VSS)

Top RH side of the differential

Engine Controls Component Views in Engine Controls 5.7L

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Windshield Washer Solvent Level Switch

Rear side of the washer fluid reservoir

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Instrument Cluster and HUD Connector End Views

C102 (20 cavities)

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

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Inline Harness Connector End Views in Wiring Systems

C142 (20 cavities)

Engine harness to transmission harness, RH side rear of engine compartment, below the battery

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Inline Harness Connector End Views in Wiring Systems

C150 (20 cavities)

Forward lamp harness to engine harness, RH side rear of engine compartment, below the battery

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Inline Harness Connector End Views in Wiring Systems

C215 (10 cavities)

Instrument panel harness to hazard warning switch jumper harness, behind the hazard warning switch

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Inline Harness Connector End Views in Wiring Systems

P200

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

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S204

Engine harness, approximately 6.5 cm (2.5 in) from the C150 breakout (CKT 817)

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S205

Instrument panel harness, approximately 6.5 cm (2.5 in) from the data link connector (DLC) breakout (CKT 9)

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S206

Instrument panel harness, approximately 5 cm (1.9 in) from the blower motor control module connector breakout (CKT 1132)

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SP100 - Splice Pack 100

Forward lamp harness, grounded to G102, at the RH headlamp opening door assembly connector breakout (CKT 150)

Power and Grounding Component Views in Wiring Systems

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SP101 - Splice Pack 101

Forward lamp harness, grounded to G101, at the LH headlamp opening door assembly connector breakout (CKT 150)

Power and Grounding Component Views in Wiring Systems

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SP201 - Splice Pack 201

Instrument panel harness, grounded to G201 (CKT 150)

Power and Grounding Component Views in Wiring Systems

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SP208 - Splice Pack 208

Instrument panel harness, RH side of Instrument panel, grounded to G104 (CKT 851)

Power and Grounding Component Views in Wiring Systems

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G101

Forward lamp harness, on frame rail between LH headlamp opening assembly and generator. part of SP101 (CKT 150)

Power and Grounding Component Views in Wiring Systems

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G102

Forward lamp harness, on the top of the RH frame rail, behind the RH headlamp assembly, ground for SP100 (CKT 250)

Power and Grounding Component Views in Wiring Systems

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G104

Instrument panel harness, below the battery tray, on the RH frame rail, ground for SP208 (CKT 851)

Power and Grounding Component Views in Wiring Systems

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G201

Instrument panel harness, at base of LH A-Pillar, ground for SP201 and SP203 (CKT 150 and CKT 351)

Power and Grounding Component Views in Wiring Systems

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