U1231

U1231 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U1231 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 U1231 Fault Code Meaning :

Ford U1231 Symptoms :

Ford U1231 Reasons :

How To Fix Ford U1231 Trouble Code ?

Which Ford cars have the code U1231?

  • U1231 Ford Aerostar
  • U1231 Ford Bronco
  • U1231 Ford C-Max
  • U1231 Ford C-Max Energi
  • U1231 Ford C-Max Hybrid
  • U1231 Ford Contour
  • U1231 Ford Crown Victoria
  • U1231 Ford EcoSport
  • U1231 Ford Econoline
  • U1231 Ford Edge
  • U1231 Ford Escape
  • U1231 Ford Escape Hybrid
  • U1231 Ford Escort
  • U1231 Ford Everest
  • U1231 Ford Excursion
  • U1231 Ford Expedition
  • U1231 Ford Explorer
  • U1231 Ford Explorer Sport Trac
  • U1231 Ford F-150
  • U1231 Ford F-250
  • U1231 Ford F-350
  • U1231 Ford Fiesta
  • U1231 Ford Flex
  • U1231 Ford Focus
  • U1231 Ford Focus Electric
  • U1231 Ford Freestar
  • U1231 Ford Freestyle
  • U1231 Ford Fusion
  • U1231 Ford Fusion Energi
  • U1231 Ford Fusion Hybrid
  • U1231 Ford Fusion Plug-In Hybrid
  • U1231 Ford GT
  • U1231 Ford Mustang
  • U1231 Ford Mustang Mach-E
  • U1231 Ford Mystique
  • U1231 Ford Probe
  • U1231 Ford Ranger
  • U1231 Ford Taurus
  • U1231 Ford Taurus X
  • U1231 Ford Tempo
  • U1231 Ford Thunderbird
  • U1231 Ford Transit
  • U1231 Ford Transit Connect
  • U1231 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.