P31C9

P31C9 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P31C9 Diagnosis

The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open circuit fault.The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.

Ford P31C9 Fault Code Meaning :

Ford P31C9 Symptoms :

Ford P31C9 Reasons :

How To Fix Ford P31C9 Trouble Code ?

Which Ford cars have the code P31C9?

  • P31C9 Ford Aerostar
  • P31C9 Ford Bronco
  • P31C9 Ford C-Max
  • P31C9 Ford C-Max Energi
  • P31C9 Ford C-Max Hybrid
  • P31C9 Ford Contour
  • P31C9 Ford Crown Victoria
  • P31C9 Ford EcoSport
  • P31C9 Ford Econoline
  • P31C9 Ford Edge
  • P31C9 Ford Escape
  • P31C9 Ford Escape Hybrid
  • P31C9 Ford Escort
  • P31C9 Ford Everest
  • P31C9 Ford Excursion
  • P31C9 Ford Expedition
  • P31C9 Ford Explorer
  • P31C9 Ford Explorer Sport Trac
  • P31C9 Ford F-150
  • P31C9 Ford F-250
  • P31C9 Ford F-350
  • P31C9 Ford Fiesta
  • P31C9 Ford Flex
  • P31C9 Ford Focus
  • P31C9 Ford Focus Electric
  • P31C9 Ford Freestar
  • P31C9 Ford Freestyle
  • P31C9 Ford Fusion
  • P31C9 Ford Fusion Energi
  • P31C9 Ford Fusion Hybrid
  • P31C9 Ford Fusion Plug-In Hybrid
  • P31C9 Ford GT
  • P31C9 Ford Mustang
  • P31C9 Ford Mustang Mach-E
  • P31C9 Ford Mystique
  • P31C9 Ford Probe
  • P31C9 Ford Ranger
  • P31C9 Ford Taurus
  • P31C9 Ford Taurus X
  • P31C9 Ford Tempo
  • P31C9 Ford Thunderbird
  • P31C9 Ford Transit
  • P31C9 Ford Transit Connect
  • P31C9 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.