P0630 OBD II Trouble Code VIN Not Programmed or Incompatible ? ECM/PCM

How to easily diagnose, repair, and info on causes of a P0630 trouble code that indicates an incompatible or not programmed VIN.

Symptoms of P0630 OBD II Trouble Code

  • No start condition
  • Vehicle security system may be activated
  • Other diagnostic codes will likely be stored

Common Causes of P0630 OBD II Trouble Code

  • ECM/PCM programming error
  • ECM/PCM swapped between vehicles or replaced without being properly programmed
  • ECM/PCM failure

Severity of P0630 OBD II Trouble Code

Since the ECM/PCM is not likely to function without VIN recognition, a stored code P0630 should be categorized as severe.