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.
2000 Pontiac Sunfire GT, 2D Convertible, AutomaticFACTORY OEM SERVICE PROCEDURE
Body Control Module DTCS
BODY CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | ||
|---|---|---|---|
| B1000 | BCM Malfunction | ||
| B1001 | Option Configuration Error | ||
| B1372 | Ignition 1 Circuit Low | ||
| B1382 | Ignition ACC Circuit Low | ||
| B2965 | Key In Ignition Fault | ||
| U1000 & U1255 | Class 2 Communication Malfunction | ||
| U1001- U1254 | (1) Loss Of Communications With XXX | ||
| U1300 | (1) Class 2 Data Link Low | ||
| U1301 | (1) Class 2 Data Link High | ||
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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.