C0278

C0278 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C0278 Diagnosis

The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.

The suspension proportioning output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for suspension proportioning air solenoid fault, and for air pressure switch short circuit fault.

Ford C0278 Fault Code Meaning :

Ford C0278 Symptoms :

Ford C0278 Reasons :

How To Fix Ford C0278 Trouble Code ?

Which Ford cars have the code C0278?

  • C0278 Ford Aerostar
  • C0278 Ford Bronco
  • C0278 Ford C-Max
  • C0278 Ford C-Max Energi
  • C0278 Ford C-Max Hybrid
  • C0278 Ford Contour
  • C0278 Ford Crown Victoria
  • C0278 Ford EcoSport
  • C0278 Ford Econoline
  • C0278 Ford Edge
  • C0278 Ford Escape
  • C0278 Ford Escape Hybrid
  • C0278 Ford Escort
  • C0278 Ford Everest
  • C0278 Ford Excursion
  • C0278 Ford Expedition
  • C0278 Ford Explorer
  • C0278 Ford Explorer Sport Trac
  • C0278 Ford F-150
  • C0278 Ford F-250
  • C0278 Ford F-350
  • C0278 Ford Fiesta
  • C0278 Ford Flex
  • C0278 Ford Focus
  • C0278 Ford Focus Electric
  • C0278 Ford Freestar
  • C0278 Ford Freestyle
  • C0278 Ford Fusion
  • C0278 Ford Fusion Energi
  • C0278 Ford Fusion Hybrid
  • C0278 Ford Fusion Plug-In Hybrid
  • C0278 Ford GT
  • C0278 Ford Mustang
  • C0278 Ford Mustang Mach-E
  • C0278 Ford Mystique
  • C0278 Ford Probe
  • C0278 Ford Ranger
  • C0278 Ford Taurus
  • C0278 Ford Taurus X
  • C0278 Ford Tempo
  • C0278 Ford Thunderbird
  • C0278 Ford Transit
  • C0278 Ford Transit Connect
  • C0278 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.