C1278

C1278 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C1278 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.

This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.

Ford C1278 Fault Code Meaning :

Ford C1278 Symptoms :

Ford C1278 Reasons :

How To Fix Ford C1278 Trouble Code ?

Which Ford cars have the code C1278?

  • C1278 Ford Aerostar
  • C1278 Ford Bronco
  • C1278 Ford C-Max
  • C1278 Ford C-Max Energi
  • C1278 Ford C-Max Hybrid
  • C1278 Ford Contour
  • C1278 Ford Crown Victoria
  • C1278 Ford EcoSport
  • C1278 Ford Econoline
  • C1278 Ford Edge
  • C1278 Ford Escape
  • C1278 Ford Escape Hybrid
  • C1278 Ford Escort
  • C1278 Ford Everest
  • C1278 Ford Excursion
  • C1278 Ford Expedition
  • C1278 Ford Explorer
  • C1278 Ford Explorer Sport Trac
  • C1278 Ford F-150
  • C1278 Ford F-250
  • C1278 Ford F-350
  • C1278 Ford Fiesta
  • C1278 Ford Flex
  • C1278 Ford Focus
  • C1278 Ford Focus Electric
  • C1278 Ford Freestar
  • C1278 Ford Freestyle
  • C1278 Ford Fusion
  • C1278 Ford Fusion Energi
  • C1278 Ford Fusion Hybrid
  • C1278 Ford Fusion Plug-In Hybrid
  • C1278 Ford GT
  • C1278 Ford Mustang
  • C1278 Ford Mustang Mach-E
  • C1278 Ford Mystique
  • C1278 Ford Probe
  • C1278 Ford Ranger
  • C1278 Ford Taurus
  • C1278 Ford Taurus X
  • C1278 Ford Tempo
  • C1278 Ford Thunderbird
  • C1278 Ford Transit
  • C1278 Ford Transit Connect
  • C1278 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.