U0631

U0631 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U0631 Diagnosis

The axle lift 2 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for axle lift 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.

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 U0631 Fault Code Meaning :

Ford U0631 Symptoms :

Ford U0631 Reasons :

How To Fix Ford U0631 Trouble Code ?

Which Ford cars have the code U0631?

  • U0631 Ford Aerostar
  • U0631 Ford Bronco
  • U0631 Ford C-Max
  • U0631 Ford C-Max Energi
  • U0631 Ford C-Max Hybrid
  • U0631 Ford Contour
  • U0631 Ford Crown Victoria
  • U0631 Ford EcoSport
  • U0631 Ford Econoline
  • U0631 Ford Edge
  • U0631 Ford Escape
  • U0631 Ford Escape Hybrid
  • U0631 Ford Escort
  • U0631 Ford Everest
  • U0631 Ford Excursion
  • U0631 Ford Expedition
  • U0631 Ford Explorer
  • U0631 Ford Explorer Sport Trac
  • U0631 Ford F-150
  • U0631 Ford F-250
  • U0631 Ford F-350
  • U0631 Ford Fiesta
  • U0631 Ford Flex
  • U0631 Ford Focus
  • U0631 Ford Focus Electric
  • U0631 Ford Freestar
  • U0631 Ford Freestyle
  • U0631 Ford Fusion
  • U0631 Ford Fusion Energi
  • U0631 Ford Fusion Hybrid
  • U0631 Ford Fusion Plug-In Hybrid
  • U0631 Ford GT
  • U0631 Ford Mustang
  • U0631 Ford Mustang Mach-E
  • U0631 Ford Mystique
  • U0631 Ford Probe
  • U0631 Ford Ranger
  • U0631 Ford Taurus
  • U0631 Ford Taurus X
  • U0631 Ford Tempo
  • U0631 Ford Thunderbird
  • U0631 Ford Transit
  • U0631 Ford Transit Connect
  • U0631 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.