U2478

U2478 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U2478 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.

The suspension proportioning output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for suspension proportioning air solenoid fault, and for air pressure switch short circuit fault.

Ford U2478 Fault Code Meaning :

Ford U2478 Symptoms :

Ford U2478 Reasons :

How To Fix Ford U2478 Trouble Code ?

Which Ford cars have the code U2478?

  • U2478 Ford Aerostar
  • U2478 Ford Bronco
  • U2478 Ford C-Max
  • U2478 Ford C-Max Energi
  • U2478 Ford C-Max Hybrid
  • U2478 Ford Contour
  • U2478 Ford Crown Victoria
  • U2478 Ford EcoSport
  • U2478 Ford Econoline
  • U2478 Ford Edge
  • U2478 Ford Escape
  • U2478 Ford Escape Hybrid
  • U2478 Ford Escort
  • U2478 Ford Everest
  • U2478 Ford Excursion
  • U2478 Ford Expedition
  • U2478 Ford Explorer
  • U2478 Ford Explorer Sport Trac
  • U2478 Ford F-150
  • U2478 Ford F-250
  • U2478 Ford F-350
  • U2478 Ford Fiesta
  • U2478 Ford Flex
  • U2478 Ford Focus
  • U2478 Ford Focus Electric
  • U2478 Ford Freestar
  • U2478 Ford Freestyle
  • U2478 Ford Fusion
  • U2478 Ford Fusion Energi
  • U2478 Ford Fusion Hybrid
  • U2478 Ford Fusion Plug-In Hybrid
  • U2478 Ford GT
  • U2478 Ford Mustang
  • U2478 Ford Mustang Mach-E
  • U2478 Ford Mystique
  • U2478 Ford Probe
  • U2478 Ford Ranger
  • U2478 Ford Taurus
  • U2478 Ford Taurus X
  • U2478 Ford Tempo
  • U2478 Ford Thunderbird
  • U2478 Ford Transit
  • U2478 Ford Transit Connect
  • U2478 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.