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 Corvette Base, 2D Convertible, StandardFACTORY OEM SERVICE PROCEDURE
Body Control Module DTCS
BODY CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC B0432 | REAR DEFOGGER RELAY CIRCUIT (OPEN OR SHORT TO GROUND) |
| DTC B0433 | REAR DEFOGGER RELAY CIRCUIT (SHORT TO VOLTAGE OR BCM OPEN) |
| DTC B0502 | RIGHT DAYTIME RUNNING LIGHTS RELAY CIRCUIT (OPEN OR SHORT TO GROUND) |
| DTC B0503 | RIGHT DAYTIME RUNNING LIGHTS RELAY CIRCUIT (SHORT TO VOLTAGE OR BCM OPEN) |
| DTC B0507 | LEFT DAYTIME RUNNING LIGHTS RELAY CIRCUIT (OPEN OR SHORT TO GROUND) |
| DTC B0508 | LEFT DAYTIME RUNNING LIGHTS RELAY CIRCUIT (SHORT TO VOLTAGE OR BCM OPEN) |
| DTC B0605 | BCM INTERNAL MEMORY MALFUNCTION |
| DTC B1000 | ECU MALFUNCTION |
| DTC B2403 | FRONT FOGLIGHT SWITCH CIRCUIT (SHORT TO VOLTAGE) |
| DTC B2408 | REAR FOGLIGHT SWITCH CIRCUIT (SHORT TO VOLTAGE) |
| DTC B2482 | BACK-UP LIGHT RELAY CIRCUIT (OPEN OR SHORT TO GROUND) |
| DTC B2483 | BACK-UP LIGHT RELAY CIRCUIT (SHORT TO VOLTAGE OR BCM OPEN) |
| DTC B2578 | RIGHT FRONT TURN SIGNAL MONITOR CIRCUIT (SHORT TO VOLTAGE) |
| DTC B2583 | LEFT FRONT TURN SIGNAL MONITOR CIRCUIT (SHORT TO VOLTAGE) |
| DTC B2597 | TRACTION CONTROL/ACTIVE HANDLING SWITCH CIRCUIT (SHORT TO GROUND) |
| DTC B2647 | AMBIENT LIGHT SENSOR CIRCUIT LOW |
| DTC B2648 | AMBIENT LIGHT SENSOR CIRCUIT HIGH |
| DTC U1000 & U1255 | CLASS 2 COMMUNICATION MALFUNCTION |
| DTC U1001-U1254 | LOSS OF COMMUNICATION WITH XXX |
| DTC U1300 | SERIAL DATA LINE SHORT TO GROUND |
| DTC U1301 | SERIAL DATA LINE SHORT TO BATTERY |
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.