C3278

C3278 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3278 Diagnosis

The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open circuit fault.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.

When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford C3278 Fault Code Meaning :

Ford C3278 Symptoms :

Ford C3278 Reasons :

How To Fix Ford C3278 Trouble Code ?

Which Ford cars have the code C3278?

  • C3278 Ford Aerostar
  • C3278 Ford Bronco
  • C3278 Ford C-Max
  • C3278 Ford C-Max Energi
  • C3278 Ford C-Max Hybrid
  • C3278 Ford Contour
  • C3278 Ford Crown Victoria
  • C3278 Ford EcoSport
  • C3278 Ford Econoline
  • C3278 Ford Edge
  • C3278 Ford Escape
  • C3278 Ford Escape Hybrid
  • C3278 Ford Escort
  • C3278 Ford Everest
  • C3278 Ford Excursion
  • C3278 Ford Expedition
  • C3278 Ford Explorer
  • C3278 Ford Explorer Sport Trac
  • C3278 Ford F-150
  • C3278 Ford F-250
  • C3278 Ford F-350
  • C3278 Ford Fiesta
  • C3278 Ford Flex
  • C3278 Ford Focus
  • C3278 Ford Focus Electric
  • C3278 Ford Freestar
  • C3278 Ford Freestyle
  • C3278 Ford Fusion
  • C3278 Ford Fusion Energi
  • C3278 Ford Fusion Hybrid
  • C3278 Ford Fusion Plug-In Hybrid
  • C3278 Ford GT
  • C3278 Ford Mustang
  • C3278 Ford Mustang Mach-E
  • C3278 Ford Mystique
  • C3278 Ford Probe
  • C3278 Ford Ranger
  • C3278 Ford Taurus
  • C3278 Ford Taurus X
  • C3278 Ford Tempo
  • C3278 Ford Thunderbird
  • C3278 Ford Transit
  • C3278 Ford Transit Connect
  • C3278 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.