GM Service Manual Online
For 1990-2009 cars only

Control Module

Repair Instructions / Programming

Diagnostic System Check / Starting Point

Schematic

Body Control Module (BCM)

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

Diagnostic Starting Point - Body Control System

Body Control System Schematics

Electronic Brake Control Module (EBCM)

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 (SDM)

Inflatable Restraint Sensing and Diagnostic Module Replacement in SIR

Diagnostic System Check - SIR in SIR

SIR Schematics in SIR

Instrument Panel Cluster (IPC)

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 (PCM)

    •  Powertrain Control Module Replacement in Engine Controls - 2.8L (LK5) or Powertrain Control Module Replacement in Engine Controls - 3.5L (L52)
    •  Service Programming System (SPS) in Programming

Diagnostic System Check - Engine Controls in Engine Controls - 2.8L (LK5) or Diagnostic System Check - Engine Controls in Engine Controls - 3.5L (L52)

Engine Controls Schematics in Engine Controls - 2.8L (LK5) or Engine Controls Schematics in Engine Controls - 3.5L (L52)

Radio

Radio Replacement in Entertainment

Diagnostic System Check - Entertainment System in Entertainment

Radio/Audio System Schematics in Entertainment

Transfer Case Control Module (TCCM)

Transfer Case Shift Control Module Replacement in Transfer Case - Isuzu T150

Diagnostic System Check - Transfer Case in Transfer Case - Isuzu T150

Transfer Case Control Schematics in Transfer Case - Isuzu T150

Vehicle Communication Interface Module (VCIM)

Communication Interface Module Replacement in Cellular Communication

Diagnostic System Check - Cellular Communication in Cellular Communication

OnStar Schematics in Cellular Communication