U3942

U3942 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3942 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 U3942 Fault Code Meaning :

Ford U3942 Symptoms :

Ford U3942 Reasons :

How To Fix Ford U3942 Trouble Code ?

Which Ford cars have the code U3942?

  • U3942 Ford Aerostar
  • U3942 Ford Bronco
  • U3942 Ford C-Max
  • U3942 Ford C-Max Energi
  • U3942 Ford C-Max Hybrid
  • U3942 Ford Contour
  • U3942 Ford Crown Victoria
  • U3942 Ford EcoSport
  • U3942 Ford Econoline
  • U3942 Ford Edge
  • U3942 Ford Escape
  • U3942 Ford Escape Hybrid
  • U3942 Ford Escort
  • U3942 Ford Everest
  • U3942 Ford Excursion
  • U3942 Ford Expedition
  • U3942 Ford Explorer
  • U3942 Ford Explorer Sport Trac
  • U3942 Ford F-150
  • U3942 Ford F-250
  • U3942 Ford F-350
  • U3942 Ford Fiesta
  • U3942 Ford Flex
  • U3942 Ford Focus
  • U3942 Ford Focus Electric
  • U3942 Ford Freestar
  • U3942 Ford Freestyle
  • U3942 Ford Fusion
  • U3942 Ford Fusion Energi
  • U3942 Ford Fusion Hybrid
  • U3942 Ford Fusion Plug-In Hybrid
  • U3942 Ford GT
  • U3942 Ford Mustang
  • U3942 Ford Mustang Mach-E
  • U3942 Ford Mystique
  • U3942 Ford Probe
  • U3942 Ford Ranger
  • U3942 Ford Taurus
  • U3942 Ford Taurus X
  • U3942 Ford Tempo
  • U3942 Ford Thunderbird
  • U3942 Ford Transit
  • U3942 Ford Transit Connect
  • U3942 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.