P478F

P478F Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P478F Diagnosis

The fuse in the main PDM powering this circuit may be open. The root cause could be excessive loads on an output, or a short to ground in the VBAT2 supply to the CHM.The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The BHM drives the 5 cab overhead clearance and ID lamps from connector B5 pin C on circuit 46. All other marker and tail lamps are driven from BHM connector B1,K on circuit 23. This circuit connects to the CHM as an input at connector J3,P.

Ford P478F Fault Code Meaning :

Ford P478F Symptoms :

Ford P478F Reasons :

How To Fix Ford P478F Trouble Code ?

Which Ford cars have the code P478F?

  • P478F Ford Aerostar
  • P478F Ford Bronco
  • P478F Ford C-Max
  • P478F Ford C-Max Energi
  • P478F Ford C-Max Hybrid
  • P478F Ford Contour
  • P478F Ford Crown Victoria
  • P478F Ford EcoSport
  • P478F Ford Econoline
  • P478F Ford Edge
  • P478F Ford Escape
  • P478F Ford Escape Hybrid
  • P478F Ford Escort
  • P478F Ford Everest
  • P478F Ford Excursion
  • P478F Ford Expedition
  • P478F Ford Explorer
  • P478F Ford Explorer Sport Trac
  • P478F Ford F-150
  • P478F Ford F-250
  • P478F Ford F-350
  • P478F Ford Fiesta
  • P478F Ford Flex
  • P478F Ford Focus
  • P478F Ford Focus Electric
  • P478F Ford Freestar
  • P478F Ford Freestyle
  • P478F Ford Fusion
  • P478F Ford Fusion Energi
  • P478F Ford Fusion Hybrid
  • P478F Ford Fusion Plug-In Hybrid
  • P478F Ford GT
  • P478F Ford Mustang
  • P478F Ford Mustang Mach-E
  • P478F Ford Mystique
  • P478F Ford Probe
  • P478F Ford Ranger
  • P478F Ford Taurus
  • P478F Ford Taurus X
  • P478F Ford Tempo
  • P478F Ford Thunderbird
  • P478F Ford Transit
  • P478F Ford Transit Connect
  • P478F Ford Windstar

A code is a fault code and it indicates that something has gone wrong with your car's engine.

It can be caused by many different problems, including a faulty battery, a bad fuel pump, or even a cracked exhaust manifold.

You will need to diagnose the problem before you can fix it. The best way to do this is with an OBD scanner tool.

A scan tool will tell you what needs fixing and how much it will cost in order to fix that particular issue.