C3678

C3678 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3678 Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.

Ford C3678 Fault Code Meaning :

Ford C3678 Symptoms :

Ford C3678 Reasons :

How To Fix Ford C3678 Trouble Code ?

Which Ford cars have the code C3678?

  • C3678 Ford Aerostar
  • C3678 Ford Bronco
  • C3678 Ford C-Max
  • C3678 Ford C-Max Energi
  • C3678 Ford C-Max Hybrid
  • C3678 Ford Contour
  • C3678 Ford Crown Victoria
  • C3678 Ford EcoSport
  • C3678 Ford Econoline
  • C3678 Ford Edge
  • C3678 Ford Escape
  • C3678 Ford Escape Hybrid
  • C3678 Ford Escort
  • C3678 Ford Everest
  • C3678 Ford Excursion
  • C3678 Ford Expedition
  • C3678 Ford Explorer
  • C3678 Ford Explorer Sport Trac
  • C3678 Ford F-150
  • C3678 Ford F-250
  • C3678 Ford F-350
  • C3678 Ford Fiesta
  • C3678 Ford Flex
  • C3678 Ford Focus
  • C3678 Ford Focus Electric
  • C3678 Ford Freestar
  • C3678 Ford Freestyle
  • C3678 Ford Fusion
  • C3678 Ford Fusion Energi
  • C3678 Ford Fusion Hybrid
  • C3678 Ford Fusion Plug-In Hybrid
  • C3678 Ford GT
  • C3678 Ford Mustang
  • C3678 Ford Mustang Mach-E
  • C3678 Ford Mystique
  • C3678 Ford Probe
  • C3678 Ford Ranger
  • C3678 Ford Taurus
  • C3678 Ford Taurus X
  • C3678 Ford Tempo
  • C3678 Ford Thunderbird
  • C3678 Ford Transit
  • C3678 Ford Transit Connect
  • C3678 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.