P4C78

P4C78 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P4C78 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.The position information for the switch becomes Not Available. Remove the duplicate Smart Switch, then use ServiceLink to verify that the correct Smart Switches are configured for the vehicle.

Engine starting is disabled and other optional functions may be interrupted until the fault is corrected and the ignition switch is cycled.

Ford P4C78 Fault Code Meaning :

Ford P4C78 Symptoms :

Ford P4C78 Reasons :

How To Fix Ford P4C78 Trouble Code ?

Which Ford cars have the code P4C78?

  • P4C78 Ford Aerostar
  • P4C78 Ford Bronco
  • P4C78 Ford C-Max
  • P4C78 Ford C-Max Energi
  • P4C78 Ford C-Max Hybrid
  • P4C78 Ford Contour
  • P4C78 Ford Crown Victoria
  • P4C78 Ford EcoSport
  • P4C78 Ford Econoline
  • P4C78 Ford Edge
  • P4C78 Ford Escape
  • P4C78 Ford Escape Hybrid
  • P4C78 Ford Escort
  • P4C78 Ford Everest
  • P4C78 Ford Excursion
  • P4C78 Ford Expedition
  • P4C78 Ford Explorer
  • P4C78 Ford Explorer Sport Trac
  • P4C78 Ford F-150
  • P4C78 Ford F-250
  • P4C78 Ford F-350
  • P4C78 Ford Fiesta
  • P4C78 Ford Flex
  • P4C78 Ford Focus
  • P4C78 Ford Focus Electric
  • P4C78 Ford Freestar
  • P4C78 Ford Freestyle
  • P4C78 Ford Fusion
  • P4C78 Ford Fusion Energi
  • P4C78 Ford Fusion Hybrid
  • P4C78 Ford Fusion Plug-In Hybrid
  • P4C78 Ford GT
  • P4C78 Ford Mustang
  • P4C78 Ford Mustang Mach-E
  • P4C78 Ford Mystique
  • P4C78 Ford Probe
  • P4C78 Ford Ranger
  • P4C78 Ford Taurus
  • P4C78 Ford Taurus X
  • P4C78 Ford Tempo
  • P4C78 Ford Thunderbird
  • P4C78 Ford Transit
  • P4C78 Ford Transit Connect
  • P4C78 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.