P31D9

P31D9 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P31D9 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 position information for the switch becomes Not Available. Remove the duplicate Smart Switch, then use ServiceLink to verify that the correct Smart Switches are configured for the vehicle.

Engine starting is disabled and other optional functions may be interrupted until the fault is corrected and the ignition switch is cycled.

Ford P31D9 Fault Code Meaning :

Ford P31D9 Symptoms :

Ford P31D9 Reasons :

How To Fix Ford P31D9 Trouble Code ?

Which Ford cars have the code P31D9?

  • P31D9 Ford Aerostar
  • P31D9 Ford Bronco
  • P31D9 Ford C-Max
  • P31D9 Ford C-Max Energi
  • P31D9 Ford C-Max Hybrid
  • P31D9 Ford Contour
  • P31D9 Ford Crown Victoria
  • P31D9 Ford EcoSport
  • P31D9 Ford Econoline
  • P31D9 Ford Edge
  • P31D9 Ford Escape
  • P31D9 Ford Escape Hybrid
  • P31D9 Ford Escort
  • P31D9 Ford Everest
  • P31D9 Ford Excursion
  • P31D9 Ford Expedition
  • P31D9 Ford Explorer
  • P31D9 Ford Explorer Sport Trac
  • P31D9 Ford F-150
  • P31D9 Ford F-250
  • P31D9 Ford F-350
  • P31D9 Ford Fiesta
  • P31D9 Ford Flex
  • P31D9 Ford Focus
  • P31D9 Ford Focus Electric
  • P31D9 Ford Freestar
  • P31D9 Ford Freestyle
  • P31D9 Ford Fusion
  • P31D9 Ford Fusion Energi
  • P31D9 Ford Fusion Hybrid
  • P31D9 Ford Fusion Plug-In Hybrid
  • P31D9 Ford GT
  • P31D9 Ford Mustang
  • P31D9 Ford Mustang Mach-E
  • P31D9 Ford Mystique
  • P31D9 Ford Probe
  • P31D9 Ford Ranger
  • P31D9 Ford Taurus
  • P31D9 Ford Taurus X
  • P31D9 Ford Tempo
  • P31D9 Ford Thunderbird
  • P31D9 Ford Transit
  • P31D9 Ford Transit Connect
  • P31D9 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.