GM Service Manual Online
For 1990-2009 cars only

Control Module

Repair/Reprogramming Instructions

Diagnostic System Check

Schematics

Body Control Module

Body Control Module Replacement and Body Control Module (BCM) Programming/RPO Configuration

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Body Control System Schematics

Electronic Brake Control Module

Electronic Brake Control Module Replacement in Antilock Brake System

Diagnostic System Check - ABS in Antilock Brake System

Antilock Brake System Schematics in Antilock Brake System

Inflatable Restraint Sensing and Diagnostic Module

Inflatable Restraint Sensing and Diagnostic Module Replacement in SIR

Diagnostic System Check - SIR in SIR

SIR Schematics in SIR

Instrument Panel Cluster

Instrument Cluster Replacement in Instrument Panel, Gages, and Console

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

Instrument Cluster Schematics in Instrument Panel, Gages, and Console

Powertrain Control Module

    •  Powertrain Control Module Replacement in Engine Controls - 4.3L
    •  Powertrain Control Module Replacement in Engine Controls - 4.8L, 5.3L, and 6.0L
    •  Service Programming System (SPS) in Programming
    • 
         Diagnostic System Check - Engine Controls in Engine Controls - 4.3L
    •  Diagnostic System Check - Engine Controls in Engine Controls - 4.8L, 5.3L, and 6.0L
    • 
         Engine Controls Schematics in Engine Controls - 4.3L
    •  Engine Controls Schematics in Engine Controls - 4.8L, 5.3L, and 6.0L

Radio

Radio Replacement in Entertainment

Diagnostic System Check - Radio/Audio System in Entertainment

Radio/Audio System Schematics in Entertainment

Remote Control Door Lock Receiver

Remote Control Door Lock Receiver Replacement in Keyless Entry

Diagnostic System Check - Remote Keyless Entry in Keyless Entry

Keyless Entry Schematics in Keyless Entry

Vehicle Communication Interface Module

Communication Interface Module Replacement in Cellular Communications

Diagnostic System Check - Cellular Communication in Cellular Communications

OnStar Schematics in Cellular Communications