P31F4

P31F4 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P31F4 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.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

The BHM measures the current on this circuit when the starter output is commanded ON. This fault indicates the magnetic switch or the wiring between the BHM and the magnetic switch is open circuit.

Ford P31F4 Fault Code Meaning :

Ford P31F4 Symptoms :

Ford P31F4 Reasons :

How To Fix Ford P31F4 Trouble Code ?

Which Ford cars have the code P31F4?

  • P31F4 Ford Aerostar
  • P31F4 Ford Bronco
  • P31F4 Ford C-Max
  • P31F4 Ford C-Max Energi
  • P31F4 Ford C-Max Hybrid
  • P31F4 Ford Contour
  • P31F4 Ford Crown Victoria
  • P31F4 Ford EcoSport
  • P31F4 Ford Econoline
  • P31F4 Ford Edge
  • P31F4 Ford Escape
  • P31F4 Ford Escape Hybrid
  • P31F4 Ford Escort
  • P31F4 Ford Everest
  • P31F4 Ford Excursion
  • P31F4 Ford Expedition
  • P31F4 Ford Explorer
  • P31F4 Ford Explorer Sport Trac
  • P31F4 Ford F-150
  • P31F4 Ford F-250
  • P31F4 Ford F-350
  • P31F4 Ford Fiesta
  • P31F4 Ford Flex
  • P31F4 Ford Focus
  • P31F4 Ford Focus Electric
  • P31F4 Ford Freestar
  • P31F4 Ford Freestyle
  • P31F4 Ford Fusion
  • P31F4 Ford Fusion Energi
  • P31F4 Ford Fusion Hybrid
  • P31F4 Ford Fusion Plug-In Hybrid
  • P31F4 Ford GT
  • P31F4 Ford Mustang
  • P31F4 Ford Mustang Mach-E
  • P31F4 Ford Mystique
  • P31F4 Ford Probe
  • P31F4 Ford Ranger
  • P31F4 Ford Taurus
  • P31F4 Ford Taurus X
  • P31F4 Ford Tempo
  • P31F4 Ford Thunderbird
  • P31F4 Ford Transit
  • P31F4 Ford Transit Connect
  • P31F4 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.