GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Body Bussed Electrical Center (BBEC)

LH of the dash, right of the IP Fuse Block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Body Control Module (BCM) Connector C1, Brown (24 Cavities)

Lower rear of the IP, on the heater

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Door Lock and Side Window Switch, LH Connector C1 (11 Cavities)

In the LH door trim panel near armrest

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Door Lock and Side Window Switch, RH Connector C1 (11 Cavities)

In the RH door trim panel near armrest

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Driver Information Display Module  C1 (9 Cavities) (w/ Trip Computer)

Front overhead console, in the passenger compartment

Driver Information System Components Views in Instrument Panel, Gauges and Console

Driver Information Systems Connector End Views in Instrument Panel, Gauges and Console

Driver Information Display Module  C1 (6 Cavities) (w/o Trip Computer)

Front overhead console, in the passenger compartment

Driver Information System Components Views in Instrument Panel, Gauges and Console

Driver Information Systems Connector End Views in Instrument Panel, Gauges and Console

Ignition Switch

To the RH of the steering column

Power and Grounding Component Views in Wiring Systems

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IP Fuse Block

LH of the IP, near the door jamb switch, LF

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Radio (Except Bravada) Connector C1, (10 Cavitites)

Center of IP

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Radio (Bravada)

Center of IP

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Rear Seat Audio Control

Rear of the center console

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Retained Accessory Power Relay

In the BBEC

Retained Accessory Power (RAP) Component Views

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Steering Wheel Controls

Mounted on the steering wheel

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Sunroof Module Connector C1

LH of the sunroof module at the front of the sunroof

Power Roof Systems Component Views in Roof

Power Roof Systems Connector End Views in Roof

Underhood Bussed Electrical Center (UBEC)

On the top of the left inner wheelwell

Power and Grounding Component Views in Wiring Systems

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Underhood Bussed Electrical Center (UBEC) Connector C5 (2 Cavities) (Body)

Below the UBEC

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

C203 (116 Cavities)

Body harness to IP harness, to the RH of the IP

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C205 (40 Cavities) (IP to console harness, Envoy)

IP harness to console harness, RH Front of the center floor console behind access panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C209 (16 Cavities) (Pickup)

Body harness to dome harness, at the LF of the IP, at the LF window

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C209 (16 Cavities) (Utility)

Body harness to dome harness, at the LF of the IP, at the LF window

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C210 (4 Cavities)

Body harness to radio steering wheel controls, Front of the IP, next to C211

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C211 (48 Cavities)

Body harness to steering column harness, in front of the IP, near the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C217 (4 Cavities)

Body harness to IP harness, at the top LF of the IP, near the LF window pillar below the IP Fuse Block

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C300 (2 Cavities) (Utility w/ Sunroof)

Dome harness to sunroof harness overhead, near the sunroof express module

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C474 (24 Cavities) (Vehicle Interface Unit, Connector C1) (Envoy only)

In the rear quarter of the vehicle

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C500 (4 Cavities) (w/o Power Locks/Windows)

Body harness to LF door harness, in the LF door

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C500 (22 Cavities) (w/ Power Locks/Windows)

Body harness to LF door harness, in the LF door

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

P100

IP bulkhead pass-through, LH rear of the engine compartment, on the cowl

Harness Routing Views in Wiring Systems

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P500

Body harness to the LF door pass-through, between the body and the LF door

Harness Routing Views in Wiring Systems

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P600

Body harness to RF door pass-through, between the body and the RF door

Harness Routing Views in Wiring Systems

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S290

(CKT 1301) IP harness, between the breakout to the BCM, C3, and In-line Connector C205

Harness Routing Views in Wiring Systems

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S476 (Envoy only)

(CKT 1301) Body harness, 7 cm (2.8 in) from G450 breakout toward rear of vehicle

Harness Routing Views in Wiring Systems

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