GM Service Manual Online
For 1990-2009 cars only

Control Module

Repair Instructions

Diagnostic System Check

Schematic

Body Control Module (BCM)

Refer to Body Control Module Replacement in Body Control System

Refer to Diagnostic System Check - Body Control System in Body Control System

Refer to Body Control System Schematics in Body Control System

Electronic Brake Control Module (EBCM)

Refer to Electronic Brake Control Module Replacement in Antilock Brake System

Refer to Diagnostic System Check in Antilock Brake System

Refer to Antilock Brake System Schematics in Antilock Brake System

Instrument Cluster

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

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

Refer to Instrument Cluster: Analog Schematics in Instrument Panel, Gauges and Console

Powertrain Control Module (PCM)

Refer to Powertrain Control Module Replacement/Programming in Engine Controls - 2.2L

Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 2.2L

Refer to Engine Controls Schematics in Engine Controls - 2.2L

Supplemental Restraint Sensing and Diagnostic Module (SDM)

Refer to Supplemental Restraint Sensing and Diagnostic Module Replacement in SRS

Refer to Diagnostic System Check - SRS in SRS

Refer to SRS Schematics in SRS

Transfer Case Shift Control Module (TCSCM)

Refer to Transfer Case Shift Control Module Replacement in Transfer Case

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Refer to Transfer Case Control Schematics in Transfer Case

Vehicle Control Module (VCM)

Refer to VCM Replacement/Programming in Engine Controls - 4.3L

Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.3L

Refer to Engine Controls Schematics in Engine Controls - 4.3L