Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2005 Saturn Relay AWDFACTORY OEM SERVICE PROCEDURE
Control Module References
WARNING: This page is about a different car, the 2005 Pontiac Aztek and 2005 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Control Module References
| Control Module | Schematic | Repair Instruction | Programming and Setup |
|---|---|---|---|
|
|||
| Audio Amplifier | Radio/Audio System Schematics in Entertainment | Amplifier Replacement in Entertainment | This device requires no programming or setup |
| Automatic Level Control Sensor | Automatic Level Control Suspension Schematics in Automatic Level Control | Automatic Level Control Sensor Replacement in Automatic Level Control | Automatic Level Control Sensor Programming and Setup |
| Body Control Module | Body Control System Schematics | Body Control Module Replacement | Body Control Module Programming and Setup |
| Communication Interface Module (OnStar®) | OnStar Schematics in Cellular Communication | Communication Interface Module Replacement in Cellular Communication | OnStar Reconfiguration (Gen 6) or OnStar Reconfiguration (Gen 6.1) in Cellular Communication after communication interface module |
| Cruise Control Module | Cruise Control Schematics in Cruise Control | Cruise Control Module Replacement in Cruise Control | This device requires no programming or setup |
| Digital Radio Receiver (DRR) | Radio/Audio System Schematics in Entertainment | Receiver Replacement - Digital Radio in Entertainment | Digital Radio Receiver Setup in Entertainment after DRR replacement |
| Electronic Brake Control Module (ABS) | ABS Schematics in Antilock Brake System | Electronic Brake Control Module Replacement in Antilock Brake System | This device requires no programming or setup |
| Engine Control Module | Engine Controls Schematics in Engine Controls - 3.6L (LY7) | Engine Control Module (ECM) Replacement in Engine Controls - 3.6L (LY7) | Engine Control Module Programming and Setup (3.6L - LY7) |
| Garage Door Opener | Garage Door Opener Schematics in Garage Door Opener | Garage Door Opener Replacement in Garage Door Opener | Garage Door Opener Programming - Universal in Garage Door Opener after garage door opener replacement |
| Head Up Display | Head Up Display Schematics in Instrument Panel, Gages, and Console | Head Up Display Replacement in Instrument Panel, Gages, and Console | This device requires no programming or setup |
| HVAC Control Module (w/CJ2) (Heating and Air Conditioning) | HVAC Schematics in HVAC Systems - Automatic | HVAC Control Module Replacement in HVAC Systems - Automatic | HVAC Control Module Programming and Setup |
| HVAC Control Module (w/CJ3) (Heating and Air Conditioning) | HVAC Schematics in HVAC Systems - Manual | HVAC Control Module Replacement (Buick) or HVAC Control Module Replacement (Pontiac) in HVAC Systems - Manual | HVAC Control Module Programming and Setup |
| Ignition Control Module | Engine Controls Schematics in Engine Controls - 3.4L | Ignition Control Module Replacement in Engine Controls - 3.4L | This device requires no programming or setup |
| Inflatable Restraint Passenger Presence System - Front | SIR Schematics in SIR | Inflatable Restraint Passenger Presence System Replacement - Front in SIR | Passenger Presence System Programming and Setup |
| Inflatable Restraint Sensing and Diagnostic Module (Supplemental Inflatable Restraint) | SIR Schematics in SIR | Inflatable Restraint Sensing and Diagnostic Module Replacement in SIR | Inflatable Restraint Sensing and Diagnostic Module Programming and Setup |
| Instrument Panel Cluster | Instrument Cluster Schematics in Instrument Panel, Gages, and Console | Instrument Panel Cluster (IPC) Replacement in Instrument Panel, Gages, and Console | Instrument Panel Cluster Programming and Setup |
| Memory Seat Control Module | Driver Seat Schematics in Seats | Memory Seat Control Module Replacement in Seats | Memory Seat Calibration Procedure in Seats after memory seat control module replacement |
| Powertrain Control Module | Engine Controls Schematics in Engine Controls - 3.4L | Powertrain Control Module (PCM) Replacement in Engine Controls - 3.4L | Powertrain Control Module Programming and Setup (3.4L) |
| Radio | Radio/Audio System Schematics in Entertainment | Radio Replacement in Entertainment | Radio Programming and Setup |
| Rear Object Alarm Detection Module | Rear Parking Assist Schematics in Rear Parking Assist | Object Alarm Module Replacement in Rear Parking Assist | This device requires no programming or setup |
| Remote Control Door Lock Receiver | Keyless Entry Schematics in Keyless Entry | Remote Control Door Lock Receiver Replacement in Keyless Entry | Transmitter Programming in Keyless Entry after RCDLR replacement. |
| Sunroof Control Module | Power Sunroof Schematics in Roof | Sunroof Control Module Replacement in Roof | This device requires no programming or setup |
| Theft Deterrent Control Module | Theft Deterrent System Schematics in Theft Deterrent | Theft Deterrent Control Module Replacement in Theft Deterrent | Theft Deterrent Control Module Programming and Setup |
| Transmission Control Module | Automatic Transmission Controls Schematics in Automatic Transmission - 4T65-E | Module, Transmission Control - Replace in Automatic Transmission - 4T65-E | - |
Factory Service Tools
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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.
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