U3789

U3789 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3789 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 is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.

Ford U3789 Fault Code Meaning :

Ford U3789 Symptoms :

Ford U3789 Reasons :

How To Fix Ford U3789 Trouble Code ?

Which Ford cars have the code U3789?

  • U3789 Ford Aerostar
  • U3789 Ford Bronco
  • U3789 Ford C-Max
  • U3789 Ford C-Max Energi
  • U3789 Ford C-Max Hybrid
  • U3789 Ford Contour
  • U3789 Ford Crown Victoria
  • U3789 Ford EcoSport
  • U3789 Ford Econoline
  • U3789 Ford Edge
  • U3789 Ford Escape
  • U3789 Ford Escape Hybrid
  • U3789 Ford Escort
  • U3789 Ford Everest
  • U3789 Ford Excursion
  • U3789 Ford Expedition
  • U3789 Ford Explorer
  • U3789 Ford Explorer Sport Trac
  • U3789 Ford F-150
  • U3789 Ford F-250
  • U3789 Ford F-350
  • U3789 Ford Fiesta
  • U3789 Ford Flex
  • U3789 Ford Focus
  • U3789 Ford Focus Electric
  • U3789 Ford Freestar
  • U3789 Ford Freestyle
  • U3789 Ford Fusion
  • U3789 Ford Fusion Energi
  • U3789 Ford Fusion Hybrid
  • U3789 Ford Fusion Plug-In Hybrid
  • U3789 Ford GT
  • U3789 Ford Mustang
  • U3789 Ford Mustang Mach-E
  • U3789 Ford Mystique
  • U3789 Ford Probe
  • U3789 Ford Ranger
  • U3789 Ford Taurus
  • U3789 Ford Taurus X
  • U3789 Ford Tempo
  • U3789 Ford Thunderbird
  • U3789 Ford Transit
  • U3789 Ford Transit Connect
  • U3789 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.