GM Service Manual Online
For 1990-2009 cars only

Control Module

Repair Instructions

Diagnostic System Check

Schematic

BCM

Refer to Body Control Module Replacement

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Refer to Body Control System Schematics

EBCM

Refer to Electronic Brake Control Module Replacement in Antilock Brake System

Refer to Diagnostic System Check - ABS in Antilock Brake System

Refer to Antilock Brake System Schematics in Antilock Brake System

HUD

Refer to Head Up Display Module Replacement in Instrument Panel, Gages and Console

Refer to Diagnostic System Check - Head Up Display in Instrument Panel, Gages and Console

Refer to Head Up Display Schematics in Instrument Panel, Gages and Console

IPC

Refer to Instrument Cluster Replacement in Instrument Panel, Gages and Console

Refer to Diagnostic System Check - Instrument Cluster in Instrument Panel, Gages and Console

Refer to Instrument Cluster Schematics in Instrument Panel, Gages and Console

PASS-Key® Module

Refer to Theft Deterrent Module Replacement in Theft Deterrent

Refer to Diagnostic System Check - Theft Deterrent in Theft Deterrent

Refer to Theft Deterrent System Schematics in Theft Deterrent

PCM

Refer to Powertrain Control Module Replacement in Engine Controls

Refer to Diagnostic System Check - Engine Controls in Engine Controls

Refer to Engine Controls Schematics in Engine Controls

Radio

Refer to Radio Replacement in Entertainment

Refer to Diagnostic System Check - Radio/Audio System in Entertainment

Refer to Radio/Audio System Schematics in Entertainment

SDM

Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement in SIR

Refer to Diagnostic System Check - SIR in SIR

Refer to SIR Schematics in SIR