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 MANUALSCHEVROLET2001CORVETTE BASE, 2D CONVERTIBLE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL MODULESSELF-DIAGNOSTIC SYSTEMDEFOGGER DIAGNOSTIC SYSTEM CHECK
2001 Chevrolet Corvette Base, 2D Convertible, Standard
Defogger Diagnostic System Check
2001 Chevrolet Corvette Base, 2D Convertible, StandardSECTION Defogger Diagnostic System Check
- Connect scan tool to DLC located under steering column. If scan tool powers up, go to next step. If scan tool does not power up, go to TEST A: SCAN TOOL DOES NOT POWER UP under SYSTEM TESTS.
- Turn ignition on. Attempt to establish communication with BCM and PCM. If scan tool communicates both modules, go to next step. If scan tool does not communicate with both modules, go to TEST B: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under SYSTEM TESTS.
- Select display DTCs function for each module. If scan tool displays any DTCs, go to next step. If scan tool does not display any DTCs, repair system by symptom. See REAR WINDOW & MIRROR DEFOGGERS - CORVETTE article.
- Check for communication DTCs. These DTCs will begin with "U". If no "U" DTCs exist, go to next step. If any "U" DTC exists, go to TEST B: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under SYSTEM TESTS.
- If DTC B0605 or B1000 is displayed, go to DTC B0605: BCM INTERNAL MEMORY MALFUNCTION or DTC B1000: ECU MALFUNCTION under DIAGNOSTIC TESTS. If DTCs are not set, go to next step.
- If any DTCs are displayed beginning with "P", see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. If no DTC are displayed, diagnose defogger by symptom. See REAR WINDOW & MIRROR DEFOGGERS - CORVETTE article.
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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.