P063F OBD II Trouble Code Auto Configuration Engine Coolant Temperature Input Not Present

How to easily diagnose, repair, and info on causes of a P063F trouble code that indicates a non-present auto configuration engine coolant temperature input.

Symptoms of P063F OBD II Trouble Code

  • Engine stall at idle (especially at start up)
  • Delayed engine start
  • Drivability issues
  • Other ECT related codes

Common Causes of P063F OBD II Trouble Code

  • Defective ECT
  • Open or shorted circuit between the ECT and PCM
  • Corrosion in ECT connector
  • Bad PCM or PCM programming error

Severity of P063F OBD II Trouble Code

Auto configuration codes should be taken seriously as engine start up idle quality and drivability may be at risk. Classify a stored code P063F as severe and address it as such.