P0655 OBD II Trouble Code Engine Hot Lamp Output Control Circuit Malfunction

How to easily diagnose, repair, and info on causes of a P0655 trouble code that indicates a detected failure of the engine hot lamp output control circuit.

Symptoms of P0655 OBD II Trouble Code

  • Engine drivability issues
  • Inoperative engine hot lamp
  • Engine hot lamp is illuminated constantly

Common Causes of P0655 OBD II Trouble Code

  • Open or shorted circuit between the PCM and the instrument panel or other controllers
  • PCM programming error
  • Faulty controller or PCM

Severity of P0655 OBD II Trouble Code

A P0655 should be categorized as severe because it could result in numerous drivability issues as well as fail to warn the driver in the event of engine overheating.