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 MANUALSSATURN2003ION 3 4D SEDAN, STANDARDREPAIR AND DIAGNOSISGENERAL INFORMATIONDTC INDEXBODY CONTROL MODULE DTCS
2003 Saturn Ion 3 4D Sedan, Standard
Body Control Module DTCS
2003 Saturn Ion 3 4D Sedan, StandardSECTION Body Control Module DTCS
BODY CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC B1000 | ECU Malfunction |
| DTC B1001 | Option Configuration Error |
| DTC B1004 | KAM In The Module Has Been Reset |
| DTC B1009 | EEPROM Error |
| DTC B1372, B1373, or B1374 | Device Ignition 1 Circuit |
| DTC B1382, B1383, or B1384 | Device Ignition ACCESSORY Circuit |
| DTC B1441, B1442, or B1443 | Device Ignition OFF, RUN, and CRANK Circuit |
| DTC C0550 | ECU Malfunction |
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.