GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Inside Rearview Mirror

In the passenger compartment, attached to the windshield

Stationary Windows Component Views in Stationary Windows

Stationary Windows Connector End Views in Stationary Windows

Onstar® Cellular Antenna (Mast Antenna)

Rear of the vehicle, mounted to the right side of the rear window

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Onstar® GPS Antenna

In the rear compartment, mounted to the rear shelf panel

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Rear Fuse Block

Left rear of the passenger compartment, under the rear seat

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Vehicle Interface Unit (VIU)

In the rear compartment, behind the rear seat back

Cellular Communication Component Views

Cellular Communication Connector End Views

Vehicle Communication Unit (VCU)

In the rear compartment, behind the rear seat back

Cellular Communication Component Views

Cellular Communication Connector End Views

C329 (30 cavities)

Headliner harness to the body harness, on the left rear sail panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C345 (30 cavities)

Body harness to the Onstar® jumper harness, behind the rear seat back and in front of the rear compartment trim panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G401

In the rear compartment, in the lower right rear corner near the tail lamp assembly pass-through

Power and Grounding Component Views in Wiring Systems

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G402

In the rear compartment, in the lower left rear corner near the tail lamp assembly pass-through

Power and Grounding Component Views in Wiring Systems

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S334

In the headliner harness, approximately 13.5 cm (5.5 in) from the garage door opener breakout

Harness Routing Views in Wiring Systems

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S360

In the Onstar jumper harness, between C345 and the VIU connector breakout

Harness Routing Views in Wiring Systems

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S361

In the Onstar jumper harness, between C345 and the VIU connector breakout

Harness Routing Views in Wiring Systems

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