U3321

U3321 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3321 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.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.

Ford U3321 Fault Code Meaning :

Ford U3321 Symptoms :

Ford U3321 Reasons :

How To Fix Ford U3321 Trouble Code ?

Which Ford cars have the code U3321?

  • U3321 Ford Aerostar
  • U3321 Ford Bronco
  • U3321 Ford C-Max
  • U3321 Ford C-Max Energi
  • U3321 Ford C-Max Hybrid
  • U3321 Ford Contour
  • U3321 Ford Crown Victoria
  • U3321 Ford EcoSport
  • U3321 Ford Econoline
  • U3321 Ford Edge
  • U3321 Ford Escape
  • U3321 Ford Escape Hybrid
  • U3321 Ford Escort
  • U3321 Ford Everest
  • U3321 Ford Excursion
  • U3321 Ford Expedition
  • U3321 Ford Explorer
  • U3321 Ford Explorer Sport Trac
  • U3321 Ford F-150
  • U3321 Ford F-250
  • U3321 Ford F-350
  • U3321 Ford Fiesta
  • U3321 Ford Flex
  • U3321 Ford Focus
  • U3321 Ford Focus Electric
  • U3321 Ford Freestar
  • U3321 Ford Freestyle
  • U3321 Ford Fusion
  • U3321 Ford Fusion Energi
  • U3321 Ford Fusion Hybrid
  • U3321 Ford Fusion Plug-In Hybrid
  • U3321 Ford GT
  • U3321 Ford Mustang
  • U3321 Ford Mustang Mach-E
  • U3321 Ford Mystique
  • U3321 Ford Probe
  • U3321 Ford Ranger
  • U3321 Ford Taurus
  • U3321 Ford Taurus X
  • U3321 Ford Tempo
  • U3321 Ford Thunderbird
  • U3321 Ford Transit
  • U3321 Ford Transit Connect
  • U3321 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.