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

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 (with CJ2)

Refer to HVAC Control Module Replacement in HVAC Systems

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

Refer to HVAC Schematics in HVAC Systems

IPC

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 Schematics in Instrument Panel, Gauges and Console

DDM

Refer to Door Control Module Replacement in Doors

Refer to Diagnostic System Check - Door Systems in Doors

Refer to Door Control Module Schematics in Doors

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 - Radio/Audio System in Entertainment

Refer to Radio/Audio System Schematics in Entertainment

PDM

Refer to Door Control Module Replacement in Doors

Refer to Diagnostic System Check - Door Systems in Doors

Refer to Door Control Module Schematics in Doors

RCDLR

Refer to Remote Control Door Lock Receiver Replacement in Keyless Entry

Refer to Diagnostic System Check - Remote Keyless Entry in Keyless Entry

Refer to Keyless Entry Schematics in Keyless Entry

ESC

Refer to Electronic Suspension Control Module Replacement in Electronic Suspension Control

Refer to Diagnostic System Check - Electronic Suspension Control in Electronic Suspension Control

Refer to Suspension Controls Schematics in Electronic Suspension Control

SCM (with AAB)

Refer to Memory Seat Control Module Replacement in Seats

Refer to Diagnostic System Check - Power Seat Systems in Seats

Refer to Memory Seats Schematics in Seats

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