B3278

B3278 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3278 Diagnosis

This fault indicates that the circuit is drawing more current than it is designed to supply, and possibly there is a wiring fault shorting this circuit to ground. The fault remains active until the ignition is turned ON when the fault is no longer present.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 B3278 Fault Code Meaning :

Ford B3278 Symptoms :

Ford B3278 Reasons :

How To Fix Ford B3278 Trouble Code ?

Which Ford cars have the code B3278?

  • B3278 Ford Aerostar
  • B3278 Ford Bronco
  • B3278 Ford C-Max
  • B3278 Ford C-Max Energi
  • B3278 Ford C-Max Hybrid
  • B3278 Ford Contour
  • B3278 Ford Crown Victoria
  • B3278 Ford EcoSport
  • B3278 Ford Econoline
  • B3278 Ford Edge
  • B3278 Ford Escape
  • B3278 Ford Escape Hybrid
  • B3278 Ford Escort
  • B3278 Ford Everest
  • B3278 Ford Excursion
  • B3278 Ford Expedition
  • B3278 Ford Explorer
  • B3278 Ford Explorer Sport Trac
  • B3278 Ford F-150
  • B3278 Ford F-250
  • B3278 Ford F-350
  • B3278 Ford Fiesta
  • B3278 Ford Flex
  • B3278 Ford Focus
  • B3278 Ford Focus Electric
  • B3278 Ford Freestar
  • B3278 Ford Freestyle
  • B3278 Ford Fusion
  • B3278 Ford Fusion Energi
  • B3278 Ford Fusion Hybrid
  • B3278 Ford Fusion Plug-In Hybrid
  • B3278 Ford GT
  • B3278 Ford Mustang
  • B3278 Ford Mustang Mach-E
  • B3278 Ford Mystique
  • B3278 Ford Probe
  • B3278 Ford Ranger
  • B3278 Ford Taurus
  • B3278 Ford Taurus X
  • B3278 Ford Tempo
  • B3278 Ford Thunderbird
  • B3278 Ford Transit
  • B3278 Ford Transit Connect
  • B3278 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.