GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Cellular Telephone Handset

In the center front of the passenger compartment, on the right side of the center console

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Cellular Communication Connector End Views

Cellular Telephone Microphone

In the front center of the passenger compartment, in the overhead console

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Cellular Telephone Module

In the right side of the rear compartment, near the power antenna motor

Cellular Communication Component Views

Cellular Communication Connector End Views

Inside Rearview Mirror

In the center front of 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

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

Cellular Communication Component Views in Cellular Communications

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Onstar GPS Antenna

In the rear compartment, mounted to the rear shelf panel

Cellular Communication Component Views in Cellular Communications

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Radio (IRC)

On the center of the IP, near the climate control panel

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Entertainment Connector End Views in Entertainment

Radio Amplifier C1

In the center rear of the passenger compartment, behind the rear seat, on the electronics bay

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Radio Amplifier C2

In the center rear of the passenger compartment, behind the rear seat, on the electronics bay

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Radio Amplifier C3

In the center rear of the passenger compartment, behind the rear seat, on the electronics bay

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Radio Interface Module (RIM) C1

In the center rear of the passenger compartment, behind the rear seat, on the electronics bay

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Radio Interface Module (RIM) C2

In the center rear of the passenger compartment, behind the rear seat, on the electronics bay

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Rear Compartment Fuse Block

In the left front of the rear compartment, on the electronics bay

Body Control System Component Views in Body Control System

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Vehicle Interface Unit (VIU)

In the rear compartment, behind the rear seat, mounted to the rear seat back panel

Cellular Communication Component Views in Cellular Communications

Cellular Communication Connector End Views in cellular communication

Vehicle Communication Unit (VCU)

In the rear compartment, behind the rear seat, mounted to the rear seat back panel

Cellular Communication Component Views in Cellular Communications

Cellular Communication Connector End Views in cellular communication

C302 (4 cavities)

Body harness to the left seat harness, in the left side of the passenger compartment, below the front seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C313 (6 cavities)

Body harness to the headliner harness, in the left rear of the passenger compartment, near the headliner

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 seatback

Cellular Communication Component Views in Cellular Communications

Inline Harness Connector End Views in Wiring Systems

G400

In the left rear of the passenger compartment, under the rear seat

Power and Grounding Component Views in Wiring Systems

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G401

In the right rear of the passenger compartment under the rear seat

Power and Grounding Component Views in Wiring Systems

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G402

In the left rear of the rear compartment near the tail lamp assembly

Power and Grounding Component Views in Wiring Systems

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S305

In the body harness, approximately 13 cm (5.1 in) from the rear seat channel crosscar breakout

Harness Routing Views in Wiring Systems

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S360

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

Cellular Communication Component Views in Cellular Communications

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S361

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

Cellular Communication Component Views in Cellular Communications

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S407

In the body harness, approximately 6.5 cm (2.6 in) from the G400 breakout

Harness Routing Views in Wiring Systems

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