Chevrolet Corvette C5 DTC B2721 – PASS-Key Detection Circuit
DTC B2721 meaning on Chevrolet Corvette C5
DTC B2721 on a Chevrolet Corvette C5 indicates a problem with the PASS-Key detection circuit. This system is responsible for detecting the correct key being used to start the vehicle.
Chevrolet Corvette C5 DTC B2721 symptoms
- Engine may not start
- Security light on the dashboard may be illuminated
- Key may not turn in the ignition
Chevrolet Corvette C5 DTC B2721 causes
- Defective key
- Issues with the ignition switch
- Wiring problems in the PASS-Key system
Chevrolet Corvette C5 DTC B2721 seriousness
The seriousness of DTC B2721 on a Chevrolet Corvette C5 lies in the fact that it can prevent the vehicle from starting, leading to inconvenience and potential immobilization.
How to diagnose DTC B2721 on Chevrolet Corvette C5
- Check the key for any visible damage
- Inspect the ignition switch for proper operation
- Use a diagnostic scanner to read the trouble code and further diagnose the issue
How to fix DTC B2721 on Chevrolet Corvette C5
- Replace the key if it is found to be defective
- Repair or replace the ignition switch if necessary
- Repair any wiring issues in the PASS-Key system
How to erase DTC B2721 on Chevrolet Corvette C5
- Use a diagnostic scanner to clear the trouble code
- Ensure the issue has been resolved before clearing the code
Recommended tools for Chevrolet Corvette C5 diagnostics
Explore our expert picks: The Best OBD2 Scanners for 2025
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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