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

DRR

Refer to Video Disc Player Replacement in Entertainment

Refer to Diagnostic System Check - Entertainment System in Entertainment

Refer to Radio/Audio System Schematics in Entertainment

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

HVAC

Refer to HVAC Control Module Replacement in HVAC Systems - Automatic

Refer to Diagnostic System Check - HVAC Systems - Automatic in HVAC Systems - Automatic

Refer to HVAC Schematics in HVAC Systems - Automatic

HUD

Refer to Instrument Cluster Head Up Display 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

MSM

Refer to Memory Seat Control Module Replacement in Seats

Refer to Diagnostic System Check - Power Seat Systems in Seats

Refer to Driver Seat Schematics in Seats

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 - Entertainment System in Entertainment

Refer to Radio/Audio System Schematics in Entertainment

RSE, DVD

Refer to Video Disc Player Replacement in Entertainment

Refer to Diagnostic System Check - Entertainment System in Entertainment

Refer to Video 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

VCIM

Refer to Communication Interface Module Replacement in Cellular Communication

Refer to Diagnostic System Check - Cellular Communication in Cellular Communication

Refer to OnStar Schematics in Cellular Communication