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.
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HOMESERVICE MANUALSSATURN2005RELAY AWDREPAIR AND DIAGNOSISELECTRICALCOMPONENT LOCATIONSELECTRICAL COMPONENT LOCATORCONTROL UNITS
2005 Saturn Relay AWD
Control Units
2005 Saturn Relay AWDSECTION Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| Accessory AC/DC Power Control Module | Behind right rear interior body panel. See Figure . |
| Blower Motor Control Module - Auxiliary | In rear HVAC module, behind left rear interior body panel. See Figure . |
| Body Control Module (BCM) | Below left side of dash, left of steering column. See Figure . |
| Digital Radio Receiver | Behind left side of dash. See Figure . |
| Electronic Brake Control Module (EBCM) | Lower left side of engine compartment, on left strut tower. See Figure . |
| HVAC Control Module | In dash center trim panel, beneath radio. See Figure . |
| Ignition Control Module (ICM) | On top rear of engine. See Figure . |
| Inflatable Restraint Front Passenger Presence System (PPS) Module | Under passenger seat |
| Inflatable Restraint I/P Module | Above dash compartment. |
| Inflatable Restraint Sensing And Diagnostic Module (SDM) | On floor below passenger seat. See Figure . |
| Inflatable Restraint Side Impact Module - Left | In left front seat back. See Figure . |
| Inflatable Restraint Side Impact Module - Right | In right front seat back. See Figure . |
| Inflatable Restraint Side Impact Sensing Module (SISM) - Left | In left "B" pillar. See Figure . |
| Inflatable Restraint Side Impact Sensing Module (SISM) - Right | In right "B" pillar. |
| Inflatable Restraint Steering Wheel Module | In center hub of steering wheel. |
| Inflatable Restraint Steering Wheel Module Coil | In steering column. |
| Left Sliding Door Module (LSDM) | Behind left rear interior body panel. See Figure . |
| Memory Seat Module - Driver (AG0) | Under driver seat. See Figure . |
| Powertrain Control Module (PCM) | Left side of engine compartment, in air cleaner assembly. See Figure . |
| Rear Object Sensor Control Module | Behind right rear interior body panel. See Figure . |
| Remote Control Door Lock Receiver (RCDLR) | Behind top left side of dash. See Figure . |
| Right Sliding Door Module (RSDM) | Behind right rear interior body panel. See Figure . |
| Sit-N-Lift(R) Seat Module | In Sit-N-Lift(R) seat base. |
| Theft Deterrent Exciter Module | In steering column surrounding lock cylinder. See Figure . |
| Throttle Actuator Control (TAC) Module | Left side of intake. See Figure . |
| Torque Converter Clutch (TCC) Release Switch | Inside automatic transmission. |
| Vehicle Communication Unit (VCU) | Behind upper left side of dash, to left of steering column. See Figure . |
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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.