GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Body Control Module (BCM) - C2

Underneath the center of the dash, mounted to the air delivery housing

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Data Link Connector (DLC)

Lower LH side of the IP

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Inflatable Restraint Sensing and Diagnostic Module (SDM)

Mounted to the cab floor under the middle of the bench seat

SIR Component Views in SIR

SIR Connector End Views in SIR

Instrument Cluster

LH side of the IP, behind the steering wheel

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

IP Fuse Block

LH side of the IP

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

IP Module Switch

Center of the dash, to the right of the steering wheel

SIR Component Views in SIR

SIR Connector End Views in SIR

Radio - C1

Center of the IP behind the radio

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Entertainment Connector End Views in Entertainment

Safety Belt Switch

Front body harness to the seat belt switch, near the base of the LH seat belt receiver

Audible Warnings Component Views in Instrument Panel, Gauges and Console

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

Supplemental Inflatable Restraint Arming Sensor, Rear

Inside the crossmember by the RH frame rail, behind the auxiliary heater

SIR Component Views in SIR

SIR Connector End Views in SIR

Supplemental Inflatable Restraint Discriminating Sensor, LH Front

On the left bottom of the core support

SIR Component Views in SIR

SIR Connector End Views in SIR

Supplemental Inflatable Restraint Discriminating Sensor, RH Front

On the right bottom of the core support

SIR Component Views in SIR

SIR Connector End Views in SIR

Supplemental Inflatable Restraint Steering Wheel Inflator Module

Under the steering wheel

SIR Component Views in SIR

SIR Connector End Views in SIR

C109

Inflatable restraint harness to the front body harness, near the battery junction block

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Inline Harness Connector End Views in Wiring Systems

C200

Front body harness to the IP harness, behind the RH side of the IP, above the hush panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C203

IP harness to the front body harness, behind the RH side of the IP, above the hush panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G200

Left rear of the vehicle on the frame

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G201

On the power steering pump bracket

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G203

Left rear of the vehicle on the frame

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G204

Left middle of the vehicle on the top of the frame above the front leaf spring mount

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P100

Below the brake master cylinder at the bulkhead

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SP202

Behind the IP cluster

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SP203

In the IP harness, 12.5 cm (4.9 in) from the run channel at the HVAC control harness breakout

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