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.
2001 Chevrolet Cavalier LS, 2.4 TFACTORY OEM SERVICE PROCEDURE
Body Control Module DTCS
BODY CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC B1000 | BODY CONTROL MODULE MALFUNCTION |
| DTC B1001 | OPTION CONFIGURATION ERROR |
| DTC B1372 | IGNITION 1 CIRCUIT LOW |
| DTC B1382 | IGNITION ACC CIRCUIT LOW |
| DTC B2965 | KEY IN IGNITION FAULT |
| DTC U1000 & U1255 | CLASS 2 COMMUNICATION MALFUNCTION |
| DTC U1001-U1254 | U1254: LOSS OF COMMUNICATIONS WITH XXX |
| DTC U1300 | CLASS 2 DATA LINK LOW |
| DTC U1301 | CLASS 2 DATA LINK HIGH |
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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