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 SYSTEMAUTOMATIC TRANSMISSION SYSTEM DIAGNOSTIC SYSTEM CHECK
2001 Chevrolet Corvette Base, 2D Convertible, Standard
Automatic Transmission System Diagnostic System Check
2001 Chevrolet Corvette Base, 2D Convertible, StandardSECTION Automatic Transmission System Diagnostic System Check
CAUTION:
DO NOT perform diagnostic system check if there is not a driveability concern, unless another procedure directs you to this diagnostic procedure. Check for applicable Technical Service Bulletins (TSBs) before proceeding. Unless a diagnostic procedure instructs you, DO NOT clear DTCs. Ensure battery is fully charged before proceeding.
- Connect scan tool to Data Link Connector (DLC). Turn ignition on, engine off. 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 .
- If Maintenance Information Light (MIL) is on, go to next step. If MIL is not on, go to SELF-DIAGNOSIS - CORVETTE 5.7L article in ENGINE PERFORMANCE.
- Attempt to establish communication with PCM. If scan tool communicates with PCM, go to next step. If scan tool does not communicate with PCM, go to TEST B: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE .
- Using scan tool, check for any DTCs stored in PCM. If any DTCs exist, go to HYDRA-MATIC 4L60-E ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS.
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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.