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.
2004 Saturn Ion Red LineFACTORY OEM SERVICE PROCEDURE
Control Module References
WARNING: This page is about a different car, the 2005 Saturn Ion Red Line, 2005 Saturn Ion 3, 2005 Saturn Ion 2, and 2005 Saturn Ion 1. 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. |
| Body Control Module | Body Control System SchematicsĀ | Body Control Module ReplacementĀ | Body Control Module Programming and Setup |
| Communication Interface Module (OnStar Ā®) | 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 replacement |
| 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 (Antilock Brake System) | 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 - 2.2L (L61) | Engine Control Module (ECM) Replacement in Engine Controls - 2.2L (L61) | Engine Control Module Programming and Setup |
| Ignition Control Module | Engine Controls Schematics in Engine Controls - 2.2L (L61) | Ignition Control Module Replacement in Engine Controls - 2.2L (L61) | This device requires no programming or 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 | This device requires no programming or setup. |
| Power Steering Control Module (Electric Power Steering) | Power Steering System Schematics in Power Steering System | Steering Column Replacement in Steering Wheel and Column | Power Steering Control Module Programming and Setup |
| Powertrain Control Module | Engine Controls Schematics in Engine Controls - 2.0L | Powertrain Control Module (PCM) Replacement in Engine Controls - 2.0L | Powertrain Control Module Programming and Setup |
| Radio | Radio/Audio System Schematics in Entertainment | Radio Replacement in Entertainment | Radio Setup in Entertainment after radio replacement |
| Transmission Control Module | Automatic Transmission Controls Schematics in Automatic Transaxle - 4T40-E/4T45-E | - | Transmission Control Module Programming and Setup |
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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