P9D31

P9D31 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P9D31 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.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 P9D31 Fault Code Meaning :

Ford P9D31 Symptoms :

Ford P9D31 Reasons :

How To Fix Ford P9D31 Trouble Code ?

Which Ford cars have the code P9D31?

  • P9D31 Ford Aerostar
  • P9D31 Ford Bronco
  • P9D31 Ford C-Max
  • P9D31 Ford C-Max Energi
  • P9D31 Ford C-Max Hybrid
  • P9D31 Ford Contour
  • P9D31 Ford Crown Victoria
  • P9D31 Ford EcoSport
  • P9D31 Ford Econoline
  • P9D31 Ford Edge
  • P9D31 Ford Escape
  • P9D31 Ford Escape Hybrid
  • P9D31 Ford Escort
  • P9D31 Ford Everest
  • P9D31 Ford Excursion
  • P9D31 Ford Expedition
  • P9D31 Ford Explorer
  • P9D31 Ford Explorer Sport Trac
  • P9D31 Ford F-150
  • P9D31 Ford F-250
  • P9D31 Ford F-350
  • P9D31 Ford Fiesta
  • P9D31 Ford Flex
  • P9D31 Ford Focus
  • P9D31 Ford Focus Electric
  • P9D31 Ford Freestar
  • P9D31 Ford Freestyle
  • P9D31 Ford Fusion
  • P9D31 Ford Fusion Energi
  • P9D31 Ford Fusion Hybrid
  • P9D31 Ford Fusion Plug-In Hybrid
  • P9D31 Ford GT
  • P9D31 Ford Mustang
  • P9D31 Ford Mustang Mach-E
  • P9D31 Ford Mystique
  • P9D31 Ford Probe
  • P9D31 Ford Ranger
  • P9D31 Ford Taurus
  • P9D31 Ford Taurus X
  • P9D31 Ford Tempo
  • P9D31 Ford Thunderbird
  • P9D31 Ford Transit
  • P9D31 Ford Transit Connect
  • P9D31 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.