GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Instrument Cluster Assembly

LH instrument panel

Instrument Panel, Gages, and Console Component Views in Instrument Panel Gauges and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel Gauges and Console

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

Multifunction Alarm Module

Behind LH instrument panel, mounted to junction block 2

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Audible Warnings Connector End Views in Instrument Panel, Gages, and Console

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

Rear Defogger

Rear window

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Rear Defogger Switch

Center of instrument panel, above radio

Stationary Windows Component Views

HVAC Connector End Views in HVAC

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

G204

Behind center instrument panel, on LH instrument panel support bracket

Power and Grounding Component Views in Wiring Systems

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G301

Behind RH rear seat back trim panel

Power and Grounding Component 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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