P31B3

P31B3 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P31B3 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 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.

The suspension proportioning output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for suspension proportioning air solenoid fault, and for air pressure switch short circuit fault.

Ford P31B3 Fault Code Meaning :

Ford P31B3 Symptoms :

Ford P31B3 Reasons :

How To Fix Ford P31B3 Trouble Code ?

Which Ford cars have the code P31B3?

  • P31B3 Ford Aerostar
  • P31B3 Ford Bronco
  • P31B3 Ford C-Max
  • P31B3 Ford C-Max Energi
  • P31B3 Ford C-Max Hybrid
  • P31B3 Ford Contour
  • P31B3 Ford Crown Victoria
  • P31B3 Ford EcoSport
  • P31B3 Ford Econoline
  • P31B3 Ford Edge
  • P31B3 Ford Escape
  • P31B3 Ford Escape Hybrid
  • P31B3 Ford Escort
  • P31B3 Ford Everest
  • P31B3 Ford Excursion
  • P31B3 Ford Expedition
  • P31B3 Ford Explorer
  • P31B3 Ford Explorer Sport Trac
  • P31B3 Ford F-150
  • P31B3 Ford F-250
  • P31B3 Ford F-350
  • P31B3 Ford Fiesta
  • P31B3 Ford Flex
  • P31B3 Ford Focus
  • P31B3 Ford Focus Electric
  • P31B3 Ford Freestar
  • P31B3 Ford Freestyle
  • P31B3 Ford Fusion
  • P31B3 Ford Fusion Energi
  • P31B3 Ford Fusion Hybrid
  • P31B3 Ford Fusion Plug-In Hybrid
  • P31B3 Ford GT
  • P31B3 Ford Mustang
  • P31B3 Ford Mustang Mach-E
  • P31B3 Ford Mystique
  • P31B3 Ford Probe
  • P31B3 Ford Ranger
  • P31B3 Ford Taurus
  • P31B3 Ford Taurus X
  • P31B3 Ford Tempo
  • P31B3 Ford Thunderbird
  • P31B3 Ford Transit
  • P31B3 Ford Transit Connect
  • P31B3 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.