Control Module References

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Control Module	Repair/Reprogramming Instructions	Diagnostic System Check	Schematics
Audio Amplifier	Amplifier Replacement (Bravada, Envoy, TrailBlazer)Amplifier Replacement (Envoy XL, TrailBlazer EXT)Amplifier Replacement (Envoy XUV) in Entertainment	Diagnostic System Check - Entertainment System in Entertainment	Radio/Audio System Schematics in Entertainment
Body Control Module	Body Control Module Replacement Body Control Module (BCM) Programming/RPO Configuration	-	Body Control System Schematics
Digital Radio Receiver	Receiver Replacement - Digital Radio in Entertainment	Diagnostic System Check - Entertainment System in Entertainment	Radio/Audio System Schematics in Entertainment
Driver Door Module	Switch Replacement - Door Lock and Side Window - Driver in Doors	Diagnostic System Check - Door Systems in Doors	Door Control Module Schematics in Doors
Driver Seat Module	Memory Seat Control Module Replacement in Seats	Diagnostic System Check - Power Seat Systems in Seats	Driver Seat Schematics in Seats
DVD Player	Video Display Replacement in Entertainment	Diagnostic System Check - Entertainment System in Entertainment	Video System Schematics in Entertainment
Electronic Brake Control Module	Electronic Brake Control Module Replacement in Antilock Brake System	Diagnostic System Check - ABS in Antilock Brake System	ABS Schematics in Antilock Brake System
End Gate Module	Module Rear Body Control Replacement - Endgate in Body Rear End	Diagnostic System Check - Body Rear End in Body Rear End	Body Rear End Schematics in Body Rear End
Front Passenger Door Module	Switch Replacement - Door Lock and Side Window - Passenger in Doors	Diagnostic System Check - Door Systems in Doors	Door Control Module Schematics in Doors
HVAC Control Module	HVAC Control Module Replacement in HVAC - Manual HVAC Control Module Replacement in HVAC - Automatic	Diagnostic System Check - HVAC Systems - Manual in HVAC - Manual Diagnostic System Check - HVAC Systems - Automatic in HVAC - Automatic	HVAC Schematics in HVAC - Manual HVAC Schematics in HVAC - Automatic
HVAC Control Module - Auxiliary	HVAC Control Module Replacement - Auxiliary in HVAC - Manual HVAC Control Module Replacement - Auxiliary in HVAC - Automatic	Diagnostic System Check - HVAC Systems - Manual in HVAC - Manual Diagnostic System Check - HVAC Systems - Automatic in HVAC - Automatic	HVAC Schematics in HVAC - Manual HVAC Schematics in HVAC - Automatic
Inflatable Restraint Sensing and Diagnostic Module	Inflatable Restraint Sensing and Diagnostic Module Replacement in SIR	Diagnostic System Check - SIR in SIR	SIR Schematics in SIR
Instrument Panel Cluster	Instrument Panel Cluster (IPC) Replacement in Instrument Panel, Gages and Console	Diagnostic System Check - Instrument Cluster in Instrument Panel, Gages and Console	Instrument Cluster Schematics in Instrument Panel, Gages and Console
Liftgate Module	Liftgate Control Module Replacement in Body Rear End Liftgate Control Module Programming in Body Rear End	Diagnostic System Check - Body Rear End in Body Rear End	Body Rear End Schematics in Body Rear End
Power Roof Module	Moveable Roof Panel Control Module Replacement in Roof	Diagnostic System Check - Power Roof in Roof	Power Sunroof Schematics in Roof
Powertrain Control Module	Powertrain Control Module (PCM) Replacement in Engine Controls - 4.2L Powertrain Control Module (PCM) Replacement in Engine Controls - 4.8L, 5.3L, 6.0L Service Programming System (SPS) in Programming	Diagnostic System Check - Engine Controls in Engine Controls - 4.2L Diagnostic System Check - Engine Controls in Engine Controls - 4.8L, 5.3L, 6.0L	Engine Controls Schematics in Engine Controls - 4.2L Engine Controls Schematics in Engine Controls - 4.8L, 5.3L, 6.0L
Radio	Radio Replacement in Entertainment	Diagnostic System Check - Entertainment System in Entertainment	Radio/Audio System Schematics in Entertainment
Theft Deterrent Control Module	Theft Deterrent Control Module Replacement in Theft Deterrent - Immobilizer Programming Theft Deterrent System Components in Theft Deterrent - Immobilizer	Diagnostic System Check - Theft Deterrent in Theft Deterrent - Immobilizer	Theft Deterrent System Schematics in Theft Deterrent - Immobilizer
Transfer Case Shift Control Module	Transfer Case Shift Control Module Replacement in Transfer Case - NVG 126-NP4 Transfer Case Shift Control Module Replacement in Transfer Case - NVG 226-NP8 Transfer Case Control Module Reprogramming in Transfer Case - NVG 126-NP4 Transfer Case Control Module Reprogramming in Transfer Case - NVG 226-NP8	Diagnostic System Check - Transfer Case in Transfer Case - NVG 126-NP4 Diagnostic System Check - Transfer Case in Transfer Case - NVG 226-NP8	Transfer Case Control Schematics in Transfer Case - NVG 126-NP4 Transfer Case Control Schematics in Transfer Case - NVG 226-NP8
Vehicle Communication Interface Module	Communication Interface Module Replacement (TrailBlazer, Envoy, Bravada)Communication Interface Module Replacement (TrailBlazer EXT, Envoy XL) in Cellular Communications	Diagnostic System Check - Cellular Communication in Cellular Communications	OnStar Schematics in Cellular Communications