C0378

C0378 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C0378 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.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

The BHM measures the current on this circuit when the starter output is commanded ON. This fault indicates the magnetic switch or the wiring between the BHM and the magnetic switch is open circuit.

Ford C0378 Fault Code Meaning :

Ford C0378 Symptoms :

Ford C0378 Reasons :

How To Fix Ford C0378 Trouble Code ?

Which Ford cars have the code C0378?

  • C0378 Ford Aerostar
  • C0378 Ford Bronco
  • C0378 Ford C-Max
  • C0378 Ford C-Max Energi
  • C0378 Ford C-Max Hybrid
  • C0378 Ford Contour
  • C0378 Ford Crown Victoria
  • C0378 Ford EcoSport
  • C0378 Ford Econoline
  • C0378 Ford Edge
  • C0378 Ford Escape
  • C0378 Ford Escape Hybrid
  • C0378 Ford Escort
  • C0378 Ford Everest
  • C0378 Ford Excursion
  • C0378 Ford Expedition
  • C0378 Ford Explorer
  • C0378 Ford Explorer Sport Trac
  • C0378 Ford F-150
  • C0378 Ford F-250
  • C0378 Ford F-350
  • C0378 Ford Fiesta
  • C0378 Ford Flex
  • C0378 Ford Focus
  • C0378 Ford Focus Electric
  • C0378 Ford Freestar
  • C0378 Ford Freestyle
  • C0378 Ford Fusion
  • C0378 Ford Fusion Energi
  • C0378 Ford Fusion Hybrid
  • C0378 Ford Fusion Plug-In Hybrid
  • C0378 Ford GT
  • C0378 Ford Mustang
  • C0378 Ford Mustang Mach-E
  • C0378 Ford Mystique
  • C0378 Ford Probe
  • C0378 Ford Ranger
  • C0378 Ford Taurus
  • C0378 Ford Taurus X
  • C0378 Ford Tempo
  • C0378 Ford Thunderbird
  • C0378 Ford Transit
  • C0378 Ford Transit Connect
  • C0378 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.