GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Ambient Air Temperature Sensor

Front of radiator, mounted to support bracket

HVAC Component Views in HVAC

Powertrain Control Module Connector End Views in Engine Controls

Daytime Running Lamps (DRL) Control Module

Behind RH instrument panel, mounted above IP compartment

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Engine Coolant Temperature (ECT) Sensor

Left side of engine, below ignition coils

Engine Controls Component Views in Engine Controls

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Fuel Sender Assembly

Under rear of vehicle, in fuel tank

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Engine Controls Connector End Views in Engine Controls

Fuse And Relay Block 1

LH front engine compartment, left of air cleaner (ACL)

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Ignition Switch

Instrument panel, right of steering column

Engine Electrical Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Instrument Cluster Assembly

LH instrument panel

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Junction Block 1

Behind LH body hinge pillar trim panel

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Junction Block 2

LH instrument panel, behind storage box access cover

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Junction Block 3

Behind center instrument panel

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

LH Front Door Jamb Switch

Mounted in LH front door frame center pillar

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Multifunction Alarm Module

Behind LH instrument panel, mounted to junction block 2

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Audible Warnings Connector End Views

Oil Pressure Switch

RH front of engine compartment, mounted in engine block behind generator

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Powertrain Control Module (PCM)

Front of center console, below radio

Engine Controls Component Views in Engine Controls

Powertrain Control Module Connector End Views in Engine Controls

Remote Control Door Lock Receiver

Behind LH instrument panel, above junction block 1

Keyless Entry Component Views in Keyless Entry

Keyless Entry Connector End Views in Keyless Entry

Seat Belt Switch

Lower LH center pillar, in LH front seat belt retractor

Seat Belt Component Views in Restraints

Seat Belt Connector End Views in Restraints

Turn Signal/Headlamp Switch

Mounted to upper steering column

Lighting Systems Component Views in Lighting Systems

Standard Wheel/Column Connector End Views in Steering

Vehicle Speed Sensor (VSS)

LH rear of transaxle

Engine Controls Component Views in Engine Controls

Automatic Transmission Connector End Views in Transmission 4 Speed - MS7

C203 (11 cavities)

Engine main to instrument panel harness; behind LH body hinge pillar trim panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C210 (16 cavities)

Instrument panel harness to cowl harness; attached to RH center instrument panel support bracket

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C220 (10 cavities)

Instrument panel harness to floor harness; behind LH body hinge pillar trim panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C222 (12 cavities)

Engine accessory harness to instrument panel harness; attached to LH center instrument panel support bracket

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C223 (22 cavities)

Engine accessory harness to instrument panel harness; attached to LH center instrument panel support bracket

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G105

Rear of engine compartment, on cylinder head

Power and Grounding Component Views in Wiring Systems

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G202

Behind center instrument panel, on RH instrument panel support bracket

Power and Grounding Component Views in Wiring Systems

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G203

Behind RH body hinge pillar trim panel

Power and Grounding Component Views in Wiring Systems

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G204

Behind center instrument panel, on LH instrument panel support bracket

Power and Grounding Component Views in Wiring Systems

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G300

Behind LH rear seat back trim panel

Power and Grounding Component Views in Wiring Systems

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P100

Rear of engine compartment, in LH inner fender

Power and Grounding Component Views in Wiring Systems

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P102

Center of rear engine compartment

Power and Grounding Component Views in Wiring Systems

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P300

Under LH rear passenger seat

Power and Grounding Component Views in Wiring Systems

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SP250

Cowl harness; attached to G203, behind RH body hinge pillar trim panel

Harness Routing Views in Wiring Systems

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SP256

Instrument panel harness; center of instrument panel, attached to G204 at LH center support bracket

Harness Routing Views in Wiring Systems

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SP258

Engine accessory harness to instrument panel harness; attached to LH center instrument panel support bracket

Harness Routing Views in Wiring Systems

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SP261

Instrument panel harness; behind LH instrument panel, near junction block 2

Harness Routing Views in Wiring Systems

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SP451

LH rear compartment

Harness Routing Views in Wiring Systems

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