U3123

U3123 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3123 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 U3123 Fault Code Meaning :

Ford U3123 Symptoms :

Ford U3123 Reasons :

How To Fix Ford U3123 Trouble Code ?

Which Ford cars have the code U3123?

  • U3123 Ford Aerostar
  • U3123 Ford Bronco
  • U3123 Ford C-Max
  • U3123 Ford C-Max Energi
  • U3123 Ford C-Max Hybrid
  • U3123 Ford Contour
  • U3123 Ford Crown Victoria
  • U3123 Ford EcoSport
  • U3123 Ford Econoline
  • U3123 Ford Edge
  • U3123 Ford Escape
  • U3123 Ford Escape Hybrid
  • U3123 Ford Escort
  • U3123 Ford Everest
  • U3123 Ford Excursion
  • U3123 Ford Expedition
  • U3123 Ford Explorer
  • U3123 Ford Explorer Sport Trac
  • U3123 Ford F-150
  • U3123 Ford F-250
  • U3123 Ford F-350
  • U3123 Ford Fiesta
  • U3123 Ford Flex
  • U3123 Ford Focus
  • U3123 Ford Focus Electric
  • U3123 Ford Freestar
  • U3123 Ford Freestyle
  • U3123 Ford Fusion
  • U3123 Ford Fusion Energi
  • U3123 Ford Fusion Hybrid
  • U3123 Ford Fusion Plug-In Hybrid
  • U3123 Ford GT
  • U3123 Ford Mustang
  • U3123 Ford Mustang Mach-E
  • U3123 Ford Mystique
  • U3123 Ford Probe
  • U3123 Ford Ranger
  • U3123 Ford Taurus
  • U3123 Ford Taurus X
  • U3123 Ford Tempo
  • U3123 Ford Thunderbird
  • U3123 Ford Transit
  • U3123 Ford Transit Connect
  • U3123 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.