B0431

B0431 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B0431 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.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.

This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.

Ford B0431 Fault Code Meaning :

Ford B0431 Symptoms :

Ford B0431 Reasons :

How To Fix Ford B0431 Trouble Code ?

Which Ford cars have the code B0431?

  • B0431 Ford Aerostar
  • B0431 Ford Bronco
  • B0431 Ford C-Max
  • B0431 Ford C-Max Energi
  • B0431 Ford C-Max Hybrid
  • B0431 Ford Contour
  • B0431 Ford Crown Victoria
  • B0431 Ford EcoSport
  • B0431 Ford Econoline
  • B0431 Ford Edge
  • B0431 Ford Escape
  • B0431 Ford Escape Hybrid
  • B0431 Ford Escort
  • B0431 Ford Everest
  • B0431 Ford Excursion
  • B0431 Ford Expedition
  • B0431 Ford Explorer
  • B0431 Ford Explorer Sport Trac
  • B0431 Ford F-150
  • B0431 Ford F-250
  • B0431 Ford F-350
  • B0431 Ford Fiesta
  • B0431 Ford Flex
  • B0431 Ford Focus
  • B0431 Ford Focus Electric
  • B0431 Ford Freestar
  • B0431 Ford Freestyle
  • B0431 Ford Fusion
  • B0431 Ford Fusion Energi
  • B0431 Ford Fusion Hybrid
  • B0431 Ford Fusion Plug-In Hybrid
  • B0431 Ford GT
  • B0431 Ford Mustang
  • B0431 Ford Mustang Mach-E
  • B0431 Ford Mystique
  • B0431 Ford Probe
  • B0431 Ford Ranger
  • B0431 Ford Taurus
  • B0431 Ford Taurus X
  • B0431 Ford Tempo
  • B0431 Ford Thunderbird
  • B0431 Ford Transit
  • B0431 Ford Transit Connect
  • B0431 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.