U3438

U3438 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3438 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 U3438 Fault Code Meaning :

Ford U3438 Symptoms :

Ford U3438 Reasons :

How To Fix Ford U3438 Trouble Code ?

Which Ford cars have the code U3438?

  • U3438 Ford Aerostar
  • U3438 Ford Bronco
  • U3438 Ford C-Max
  • U3438 Ford C-Max Energi
  • U3438 Ford C-Max Hybrid
  • U3438 Ford Contour
  • U3438 Ford Crown Victoria
  • U3438 Ford EcoSport
  • U3438 Ford Econoline
  • U3438 Ford Edge
  • U3438 Ford Escape
  • U3438 Ford Escape Hybrid
  • U3438 Ford Escort
  • U3438 Ford Everest
  • U3438 Ford Excursion
  • U3438 Ford Expedition
  • U3438 Ford Explorer
  • U3438 Ford Explorer Sport Trac
  • U3438 Ford F-150
  • U3438 Ford F-250
  • U3438 Ford F-350
  • U3438 Ford Fiesta
  • U3438 Ford Flex
  • U3438 Ford Focus
  • U3438 Ford Focus Electric
  • U3438 Ford Freestar
  • U3438 Ford Freestyle
  • U3438 Ford Fusion
  • U3438 Ford Fusion Energi
  • U3438 Ford Fusion Hybrid
  • U3438 Ford Fusion Plug-In Hybrid
  • U3438 Ford GT
  • U3438 Ford Mustang
  • U3438 Ford Mustang Mach-E
  • U3438 Ford Mystique
  • U3438 Ford Probe
  • U3438 Ford Ranger
  • U3438 Ford Taurus
  • U3438 Ford Taurus X
  • U3438 Ford Tempo
  • U3438 Ford Thunderbird
  • U3438 Ford Transit
  • U3438 Ford Transit Connect
  • U3438 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.