P78D9

P78D9 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P78D9 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 wiper switch is in the OFF position and the BHM park input from the wiper motor is not in park position. Troubleshoot for a wiper motor park switch circuit fault.

When the engine is in idle or in low engine speed and torque condition, the differential pressure over the DPF is expected to be close to zero. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford P78D9 Fault Code Meaning :

Ford P78D9 Symptoms :

Ford P78D9 Reasons :

How To Fix Ford P78D9 Trouble Code ?

Which Ford cars have the code P78D9?

  • P78D9 Ford Aerostar
  • P78D9 Ford Bronco
  • P78D9 Ford C-Max
  • P78D9 Ford C-Max Energi
  • P78D9 Ford C-Max Hybrid
  • P78D9 Ford Contour
  • P78D9 Ford Crown Victoria
  • P78D9 Ford EcoSport
  • P78D9 Ford Econoline
  • P78D9 Ford Edge
  • P78D9 Ford Escape
  • P78D9 Ford Escape Hybrid
  • P78D9 Ford Escort
  • P78D9 Ford Everest
  • P78D9 Ford Excursion
  • P78D9 Ford Expedition
  • P78D9 Ford Explorer
  • P78D9 Ford Explorer Sport Trac
  • P78D9 Ford F-150
  • P78D9 Ford F-250
  • P78D9 Ford F-350
  • P78D9 Ford Fiesta
  • P78D9 Ford Flex
  • P78D9 Ford Focus
  • P78D9 Ford Focus Electric
  • P78D9 Ford Freestar
  • P78D9 Ford Freestyle
  • P78D9 Ford Fusion
  • P78D9 Ford Fusion Energi
  • P78D9 Ford Fusion Hybrid
  • P78D9 Ford Fusion Plug-In Hybrid
  • P78D9 Ford GT
  • P78D9 Ford Mustang
  • P78D9 Ford Mustang Mach-E
  • P78D9 Ford Mystique
  • P78D9 Ford Probe
  • P78D9 Ford Ranger
  • P78D9 Ford Taurus
  • P78D9 Ford Taurus X
  • P78D9 Ford Tempo
  • P78D9 Ford Thunderbird
  • P78D9 Ford Transit
  • P78D9 Ford Transit Connect
  • P78D9 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.