GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Cellular Telephone Antenna

In the rear of the vehicle, taped to the right side of the inside of the rear window glass (circular antenna)

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Cellular Telephone Handset

Center of the passenger compartment, inside the center console storage area

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Cellular Telephone Interface Board

Center of the passenger compartment, beneath the center console

Cellular Communication Component Views

Cellular Communication Connector End Views

Cellular Telephone Microphone (w/o UE1)

Front center of the headliner, on the left side of the overhead console

Cellular Communication Component Views

Cellular Communication Connector End Views

Cellular Telephone Module (w/o UE1)

Right rear of the passenger compartment, behind the rear seat back, mounted to the electronics bay

Cellular Communication Component Views

Cellular Communication Connector End Views

Cellular Telephone Module (w/UE1, UV8)

In the rear compartment, behind the rear shelf trim, mounted to the right side of the rear shelf carrier

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Cellular Communication Connector End Views

Inside Rearview Mirror

Center front of the passenger compartment, near the overhead console on 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 right side of the rear window glass (mast antenna)

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OnStar GPS Antenna

In the rear compartment, behind the rear shelf trim, mounted to the left side of the rear shelf carrier

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Radio (w/o UY4)

Center of the instrument panel, below the HVAC controls

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Radio (w/UY4)

Left side of the rear compartment, under the rear package shelf

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Radio Amplifier

Left rear of the passenger compartment, behind the rear seat back

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

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

RF Signal Amplifier

Right front corner of the rear compartment, below the rear shelf

Cellular Communication Component Views

Cellular Communication Connector End Views

Vehicle Communication Unit (VCU)

Rear of the passenger compartment, behind the rear seat back, mounted to the vehicle interface unit (VIU)

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Cellular Communication Connector End Views

Vehicle Interface Unit (VIU)

Rear of the passenger compartment, behind the rear seat back, mounted to the electronics bay

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Cellular Communication Connector End Views

C200 (40 cavities)

Instrument panel harness to the body harness, under the left side of the instrument panel near the park brake pedal

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C305 (30 cavities)

Headliner harness to the body harness, at the left rear of the passenger compartment near the rear shelf panel on the base of the 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, on the right side of the electronics bay

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Inline Harness Connector End Views in Wiring Systems

C346 (40 cavities)

OnStar jumper harness to the cellular telephone module harness, behind the rear seat back, on the right side of the electronics bay

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Inline Harness Connector End Views in Wiring Systems

G401

Right rear corner of the rear compartment, near the right tail lamp connector

Power and Grounding Component Views in Wiring Systems

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G402

Left rear corner of the rear compartment, near the left tail lamp connector

Harness Routing Views in Wiring Systems

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S303

In the headliner harness, approximately 63 cm (24.8 in) from the inside rearview mirror connector)

Harness Routing Views in Wiring Systems

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S360

In the OnStar jumper harness, between connector C345 and break out of the vehicle interface unit (VIU) connectors

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S361

In the OnStar jumper harness, between connector C345 and break out of the vehicle interface unit (VIU) connectors

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