B2721 – Chevrolet Corvette C5 DTC

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

1. Check the key for any visible damage
2. Inspect the ignition switch for proper operation
3. Use a diagnostic scanner to read the trouble code and further diagnose the issue

How to fix DTC B2721 on Chevrolet Corvette C5

1. Replace the key if it is found to be defective
2. Repair or replace the ignition switch if necessary
3. Repair any wiring issues in the PASS-Key system

How to erase DTC B2721 on Chevrolet Corvette C5

1. Use a diagnostic scanner to clear the trouble code
2. Ensure the issue has been resolved before clearing the code