P9E78

P9E78 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P9E78 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.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 P9E78 Fault Code Meaning :

Ford P9E78 Symptoms :

Ford P9E78 Reasons :

How To Fix Ford P9E78 Trouble Code ?

Which Ford cars have the code P9E78?

  • P9E78 Ford Aerostar
  • P9E78 Ford Bronco
  • P9E78 Ford C-Max
  • P9E78 Ford C-Max Energi
  • P9E78 Ford C-Max Hybrid
  • P9E78 Ford Contour
  • P9E78 Ford Crown Victoria
  • P9E78 Ford EcoSport
  • P9E78 Ford Econoline
  • P9E78 Ford Edge
  • P9E78 Ford Escape
  • P9E78 Ford Escape Hybrid
  • P9E78 Ford Escort
  • P9E78 Ford Everest
  • P9E78 Ford Excursion
  • P9E78 Ford Expedition
  • P9E78 Ford Explorer
  • P9E78 Ford Explorer Sport Trac
  • P9E78 Ford F-150
  • P9E78 Ford F-250
  • P9E78 Ford F-350
  • P9E78 Ford Fiesta
  • P9E78 Ford Flex
  • P9E78 Ford Focus
  • P9E78 Ford Focus Electric
  • P9E78 Ford Freestar
  • P9E78 Ford Freestyle
  • P9E78 Ford Fusion
  • P9E78 Ford Fusion Energi
  • P9E78 Ford Fusion Hybrid
  • P9E78 Ford Fusion Plug-In Hybrid
  • P9E78 Ford GT
  • P9E78 Ford Mustang
  • P9E78 Ford Mustang Mach-E
  • P9E78 Ford Mystique
  • P9E78 Ford Probe
  • P9E78 Ford Ranger
  • P9E78 Ford Taurus
  • P9E78 Ford Taurus X
  • P9E78 Ford Tempo
  • P9E78 Ford Thunderbird
  • P9E78 Ford Transit
  • P9E78 Ford Transit Connect
  • P9E78 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.