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.
2002 Saturn LW300FACTORY OEM SERVICE PROCEDURE
Body Control Module DTCS
BODY CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC B1000 | ECU MALFUNCTION |
| DTC B1001 | OPTION CONFIGURATION ERROR |
| DTC B1327 | DEVICE POWER #1 (LOW CURRENT #1) CIRCUIT LOW |
| DTC B1328 | DEVICE POWER #1 (LOW CURRENT #1) CIRCUIT HIGH |
| DTC B1372 | DEVICE IGNITION #1 (ON/START) CIRCUIT LOW |
| DTC B1382 | DEVICE IGNITION ACC CIRCUIT LOW |
| DTC B2965 | KEY-IN-IGNITION CIRCUIT MALFUNCTION |
Factory Service Tools
Use the Manual With the Right Hardware
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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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