Control Module References

2004 Oldsmobile Bravada RWDSECTION Control Module References
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Control Module References

Control Module Repair Instructions Diagnostic System Check Schematics
Audio Amplifier Refer to AMPLIFIER REPLACEMENT (BRAVADA, ENVOY, TRAILBLAZER) or AMPLIFIER REPLACEMENT (ENVOY XL, TRAILBLAZER EXT) in Entertainment. Refer to DIAGNOSTIC SYSTEM CHECK - ENTERTAINMENT SYSTEM in Entertainment. Refer to RADIO/AUDIO SYSTEM SCHEMATICS in Entertainment.
Body Control Module Refer to Body Control Module Replacement  - Refer to Body Control System Schematics 
Driver Door Module Refer to SWITCH REPLACEMENT - DOOR LOCK AND SIDE WINDOW - DRIVER in Doors. Refer to DIAGNOSTIC SYSTEM CHECK - DOOR SYSTEMS in Doors. Refer to DOOR CONTROL MODULE SCHEMATICS in Doors.
Electronic Brake Control Module Refer to ELECTRONIC BRAKE CONTROL MODULE (EBCM) REPLACEMENT in Antilock Brake System. Refer to DIAGNOSTIC SYSTEM CHECK - ABS in Antilock Brake System. Refer to ABS SCHEMATICS (ELECTRONIC BRAKE CONTROLS) in Antilock Brake System.
Front Passenger Door Module Refer to SWITCH REPLACEMENT - DOOR LOCK AND SIDE WINDOW - PASSENGER in Doors. Refer to DIAGNOSTIC SYSTEM CHECK - DOOR SYSTEMS in Doors. Refer to DOOR CONTROL MODULE SCHEMATICS in Doors.
HVAC Control Module Refer to: Refer to Refer to
Inflatable Restraint Sensing and Diagnostic Module Refer to SENSING & DIAGNOSTIC MODULE (SDM) in SIR. Refer to SIR DIAGNOSTIC SYSTEM CHECK in SIR. Refer to WIRING DIAGRAMS in SIR.
Instrument Panel Cluster Refer to INSTRUMENT PANEL CLUSTER (IPC) 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.
Liftgate Control Module Refer to LIFT GATE CONTROL MODULE REPLACEMENT in Body Rear End. Refer to DIAGNOSTIC SYSTEM CHECK -- BODY REAR END in Body Rear End. Refer to SCHEMATIC AND ROUTING DIAGRAMS in Body Rear End.
Memory Seat Module - Driver and Passenger 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 Refer to POWERTRAIN CONTROL MODULE Refer to DIAGNOSTIC SYSTEM CHECK -- ENGINE CONTROLS Refer to ENGINE PERFORMANCE (BRAVADA) , or ENGINE PERFORMANCE (ENVOY) , or ENGINE PERFORMANCE (ENVOY XL) , or ENGINE PERFORMANCE (TRAILBLAZER)
Radio Refer to RADIO REPLACEMENT in Entertainment. Refer to DIAGNOSTIC SYSTEM CHECK - ENTERTAINMENT SYSTEM in Entertainment. Refer to RADIO/AUDIO SYSTEM SCHEMATICS in Entertainment.
Rear Climate Control Refer to: Refer to: Refer to:
Theft Deterrent Control Module Refer to THEFT DETERRENT CONTROL MODULE REPLACEMENT in Theft Deterrent - Immobilizer. Refer to DIAGNOSTIC SYSTEM CHECK - THEFT DETERRENT in Theft Deterrent - Immobilizer. Refer to THEFT DETERRENT SYSTEM SCHEMATICS in Theft Deterrent - Immobilizer.
Transfer Case Shift Control Module Refer to: Refer to: Refer to:
Vehicle Communication Interface Module Refer to COMMUNICATION INTERFACE MODULE REPLACEMENT (TRAILBLAZER, ENVOY, BRAVADA) or COMMUNICATION INTERFACE MODULE REPLACEMENT (TRAILBLAZER EXT, ENVOY XL) in Cellular Communication Refer to DIAGNOSTIC SYSTEM CHECK - CELLULAR COMMUNICATION in Cellular Communication Refer to ONSTAR SCHEMATICS in Cellular Communication
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.