Body Control Module (BCM)

Refer to Body Control Module Replacement in Body Control System

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Refer to Body Control System Schematics in Body Control System

Continuously Variable Road Sensing Suspension (CVRSS) Module

Refer to Electronic Suspension Control Module Replacement in Road Sensing Suspension (RSS)

Refer to Diagnostic System Check - Road Sensing Suspension in Road Sensing Suspension (RSS)

Refer to Suspension Controls Schematics in Road Sensing Suspension (RSS)

Electronic Brake Control Module (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 Control Module

Refer to HVAC Control Module Replacement in HVAC Systems-Automatic

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

Refer to HVAC Schematics in HVAC Systems-Automatic

HVAC Control Processor

Refer to HVAC Control Processor Replacement in HVAC Systems-Automatic

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

Refer to HVAC Schematics in HVAC Systems-Automatic

Inflatable Restraint Sensing and Diagnostic Module (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

Instrument Panel Cluster (IPC)

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

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

Refer to Instrument Cluster Schematics in Instrument Panel, Gages and Console

Memory Mirror Module (MMM)

Refer to Memory Mirror Module Replacement in Doors

Refer to Memory Mirror Module Replacement in Doors

Refer to Outside Rearview Mirror Schematics in Doors

Memory Seat Module (MSM)

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

Powertrain Control Module (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

Radio Interface Module (RIM)

Refer to Radio Speaker Amplifier Replacement in Entertainment

Refer to Diagnostic System Check - Radio/Audio System in Entertainment

Refer to Radio/Audio System Schematics in Entertainment

Remote Control Door Lock Receiver (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

Vehicle Interface Unit (VIU)

Refer to OnStar Vehicle Interface Unit Replacement in Cellular Communication

Refer to Diagnostic System Check - Cellular Communication in Cellular Communication

Refer to OnStar Schematics in Cellular Communication