U3431

U3431 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3431 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.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.

When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford U3431 Fault Code Meaning :

Ford U3431 Symptoms :

Ford U3431 Reasons :

How To Fix Ford U3431 Trouble Code ?

Which Ford cars have the code U3431?

  • U3431 Ford Aerostar
  • U3431 Ford Bronco
  • U3431 Ford C-Max
  • U3431 Ford C-Max Energi
  • U3431 Ford C-Max Hybrid
  • U3431 Ford Contour
  • U3431 Ford Crown Victoria
  • U3431 Ford EcoSport
  • U3431 Ford Econoline
  • U3431 Ford Edge
  • U3431 Ford Escape
  • U3431 Ford Escape Hybrid
  • U3431 Ford Escort
  • U3431 Ford Everest
  • U3431 Ford Excursion
  • U3431 Ford Expedition
  • U3431 Ford Explorer
  • U3431 Ford Explorer Sport Trac
  • U3431 Ford F-150
  • U3431 Ford F-250
  • U3431 Ford F-350
  • U3431 Ford Fiesta
  • U3431 Ford Flex
  • U3431 Ford Focus
  • U3431 Ford Focus Electric
  • U3431 Ford Freestar
  • U3431 Ford Freestyle
  • U3431 Ford Fusion
  • U3431 Ford Fusion Energi
  • U3431 Ford Fusion Hybrid
  • U3431 Ford Fusion Plug-In Hybrid
  • U3431 Ford GT
  • U3431 Ford Mustang
  • U3431 Ford Mustang Mach-E
  • U3431 Ford Mystique
  • U3431 Ford Probe
  • U3431 Ford Ranger
  • U3431 Ford Taurus
  • U3431 Ford Taurus X
  • U3431 Ford Tempo
  • U3431 Ford Thunderbird
  • U3431 Ford Transit
  • U3431 Ford Transit Connect
  • U3431 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.