GM Service Manual Online
For 1990-2009 cars only

Control Module

Repair Instructions

Diagnostic System Check

Schematic

(BCM) Body Control Module

Refer to Body Control Module Replacement in Body Control System

Refer to DTC 12 Diagnostic System Check in Body Control System

Refer to Body Control System Schematics in Body Control System

(ATC) Active Transfer Case

Refer to Transfer Case Shift Control Module Replacement in Active Transfer Case

Refer to Diagnostic System Check in Active Transfer Case

Refer to Transfer Case Control Schematics in Active Transfer Case

(EBCM) Electronic Brake Control Module

Refer to Electronic Brake Control Module Replacement in Hydraulic Brakes

Refer to Diagnostic System Check in Antilock Brake System

Refer to Hydraulic Brake Diagnostic System Check in Hydraulic Brakes

Refer to Antilock Brake System Schematics in Antilock Brakes System

Refer to Brake Warning System Schematics in Hydraulic Brakes

(IPC) Instrument Panel Cluster

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

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

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

(PCM) Powertrain Control Module

Refer to Powertrain Control Module Replacement/Programming in Engine Controls-6.5L-L65

Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls-6.5L-L65

Refer to Engine Controls Schematics in Engine Controls-6.5L-L65

(VCM) Vehicle Control Module

Refer to VCM Replacement/Programming in Engine Controls-5.0,5.7L

Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls-5.0,5.7L

Refer to Engine Controls Schematics in Engine Controls-5.0,5.7L

(SIR) Supplemental Inflatable Restraint Module

Refer to Inflatable Restraint Steering Wheel Module Replacement in SIR

Refer to Diagnostic System Check - SIR in SIR

Refer to SIR Schematics in SIR