P3678

P3678 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3678 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 P3678 Fault Code Meaning :

Ford P3678 Symptoms :

Ford P3678 Reasons :

How To Fix Ford P3678 Trouble Code ?

Which Ford cars have the code P3678?

  • P3678 Ford Aerostar
  • P3678 Ford Bronco
  • P3678 Ford C-Max
  • P3678 Ford C-Max Energi
  • P3678 Ford C-Max Hybrid
  • P3678 Ford Contour
  • P3678 Ford Crown Victoria
  • P3678 Ford EcoSport
  • P3678 Ford Econoline
  • P3678 Ford Edge
  • P3678 Ford Escape
  • P3678 Ford Escape Hybrid
  • P3678 Ford Escort
  • P3678 Ford Everest
  • P3678 Ford Excursion
  • P3678 Ford Expedition
  • P3678 Ford Explorer
  • P3678 Ford Explorer Sport Trac
  • P3678 Ford F-150
  • P3678 Ford F-250
  • P3678 Ford F-350
  • P3678 Ford Fiesta
  • P3678 Ford Flex
  • P3678 Ford Focus
  • P3678 Ford Focus Electric
  • P3678 Ford Freestar
  • P3678 Ford Freestyle
  • P3678 Ford Fusion
  • P3678 Ford Fusion Energi
  • P3678 Ford Fusion Hybrid
  • P3678 Ford Fusion Plug-In Hybrid
  • P3678 Ford GT
  • P3678 Ford Mustang
  • P3678 Ford Mustang Mach-E
  • P3678 Ford Mystique
  • P3678 Ford Probe
  • P3678 Ford Ranger
  • P3678 Ford Taurus
  • P3678 Ford Taurus X
  • P3678 Ford Tempo
  • P3678 Ford Thunderbird
  • P3678 Ford Transit
  • P3678 Ford Transit Connect
  • P3678 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.