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

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

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

Instrument Cluster (IPC)

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

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

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

Powertrain Control Module (PCM)

Refer to Powertrain Control Module Replacement in Engine Electrical, 3.1L (LG8).

Refer to Powertrain Control Module Replacement in Engine Electrical, 3.8L.

Refer to Diagnostic System Check - Engine Controls in Engine Electrical, 3.1L (LG8).

Refer to Diagnostic System Check - Engine Controls in Engine Electrical, 3.8L.

Refer to Engine Controls Schematics in Engine Electrical, 3.1L (LG8).

Refer to Engine Controls Schematics in Engine Electrical, 3.8L.

Radio

Refer to Radio Replacement in Entertainment

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Refer to Radio/Audio System Schematics in Entertainment

SIR 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

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