Manufacturer-specific code

This code means different things on different makes. Find yours below.

• Ford

  OBD-II monitor testing not complete

  The engine computer has not finished its self-tests since the codes were cleared, the battery was disconnected or the computer was reprogrammed. It is not a fault.

  Likely causes, most likely first

  1. 01Fault codes recently cleared
  2. 02Battery disconnected or replaced
  3. 03Engine computer reprogrammed
  4. 04Not enough mixed driving yet

  Severity: Low: fix when convenient · Easy DIY job