Chevrolet Corvette C5 DTC P0654 – Engine Speed Output Circuit
DTC P0654 meaning on Chevrolet Corvette C5
DTC P0654 in a Chevrolet Corvette C5 indicates a fault in the engine speed output circuit. This diagnostic trouble code specifically relates to a problem with the engine speed signal being sent to the Engine Control Module (ECM) or Powertrain Control Module (PCM).
Chevrolet Corvette C5 DTC P0654 symptoms
- Check Engine Light (CEL) illuminated on the dashboard
- Engine may run rough or stall
- Loss of power or acceleration
- Difficulty starting the vehicle
Chevrolet Corvette C5 DTC P0654 causes
- Defective engine speed sensor
- Wiring or connector issues in the engine speed sensor circuit
- Faulty ECM or PCM
Chevrolet Corvette C5 DTC P0654 seriousness
The DTC P0654 in a Chevrolet Corvette C5 should be addressed promptly as it can lead to drivability issues and potential engine damage if left unresolved. Ignoring this code may result in poor engine performance and increased fuel consumption.
How to diagnose DTC P0654 on Chevrolet Corvette C5
- Use a diagnostic scanner to retrieve the trouble codes and freeze frame data
- Inspect the engine speed sensor and its wiring for any visible damage or corrosion
- Check the connectors for proper connection and signs of damage
- Perform a continuity test on the engine speed sensor circuit
How to fix DTC P0654 on Chevrolet Corvette C5
- Replace the engine speed sensor if faulty
- Repair or replace any damaged wiring or connectors in the circuit
- If the ECM or PCM is determined to be faulty, it may need to be replaced or reprogrammed
How to erase DTC P0654 on Chevrolet Corvette C5
- Use a diagnostic scanner to clear the trouble codes from the ECM or PCM memory
- After the repair is completed, drive the vehicle to ensure the code does not return