B278B

B278B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B278B Diagnosis

The PTO 1 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for PTO 2 air solenoid fault, and for air pressure switch short circuit fault.The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.

When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford B278B Fault Code Meaning :

Ford B278B Symptoms :

Ford B278B Reasons :

How To Fix Ford B278B Trouble Code ?

Which Ford cars have the code B278B?

  • B278B Ford Aerostar
  • B278B Ford Bronco
  • B278B Ford C-Max
  • B278B Ford C-Max Energi
  • B278B Ford C-Max Hybrid
  • B278B Ford Contour
  • B278B Ford Crown Victoria
  • B278B Ford EcoSport
  • B278B Ford Econoline
  • B278B Ford Edge
  • B278B Ford Escape
  • B278B Ford Escape Hybrid
  • B278B Ford Escort
  • B278B Ford Everest
  • B278B Ford Excursion
  • B278B Ford Expedition
  • B278B Ford Explorer
  • B278B Ford Explorer Sport Trac
  • B278B Ford F-150
  • B278B Ford F-250
  • B278B Ford F-350
  • B278B Ford Fiesta
  • B278B Ford Flex
  • B278B Ford Focus
  • B278B Ford Focus Electric
  • B278B Ford Freestar
  • B278B Ford Freestyle
  • B278B Ford Fusion
  • B278B Ford Fusion Energi
  • B278B Ford Fusion Hybrid
  • B278B Ford Fusion Plug-In Hybrid
  • B278B Ford GT
  • B278B Ford Mustang
  • B278B Ford Mustang Mach-E
  • B278B Ford Mystique
  • B278B Ford Probe
  • B278B Ford Ranger
  • B278B Ford Taurus
  • B278B Ford Taurus X
  • B278B Ford Tempo
  • B278B Ford Thunderbird
  • B278B Ford Transit
  • B278B Ford Transit Connect
  • B278B 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.