U20D4

U20D4 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U20D4 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 position information for the switch becomes Not Available. Remove the duplicate Smart Switch, then use ServiceLink to verify that the correct Smart Switches are configured for the vehicle.

A comparison of pressures from all sensors is made. The smallest difference between the three is determined and a reference pressure is calculated. The Barometric pressure sensor value is compared to the reference value and if the difference is above the threshold a DTC is reported.

Ford U20D4 Fault Code Meaning :

Ford U20D4 Symptoms :

Ford U20D4 Reasons :

How To Fix Ford U20D4 Trouble Code ?

Which Ford cars have the code U20D4?

  • U20D4 Ford Aerostar
  • U20D4 Ford Bronco
  • U20D4 Ford C-Max
  • U20D4 Ford C-Max Energi
  • U20D4 Ford C-Max Hybrid
  • U20D4 Ford Contour
  • U20D4 Ford Crown Victoria
  • U20D4 Ford EcoSport
  • U20D4 Ford Econoline
  • U20D4 Ford Edge
  • U20D4 Ford Escape
  • U20D4 Ford Escape Hybrid
  • U20D4 Ford Escort
  • U20D4 Ford Everest
  • U20D4 Ford Excursion
  • U20D4 Ford Expedition
  • U20D4 Ford Explorer
  • U20D4 Ford Explorer Sport Trac
  • U20D4 Ford F-150
  • U20D4 Ford F-250
  • U20D4 Ford F-350
  • U20D4 Ford Fiesta
  • U20D4 Ford Flex
  • U20D4 Ford Focus
  • U20D4 Ford Focus Electric
  • U20D4 Ford Freestar
  • U20D4 Ford Freestyle
  • U20D4 Ford Fusion
  • U20D4 Ford Fusion Energi
  • U20D4 Ford Fusion Hybrid
  • U20D4 Ford Fusion Plug-In Hybrid
  • U20D4 Ford GT
  • U20D4 Ford Mustang
  • U20D4 Ford Mustang Mach-E
  • U20D4 Ford Mystique
  • U20D4 Ford Probe
  • U20D4 Ford Ranger
  • U20D4 Ford Taurus
  • U20D4 Ford Taurus X
  • U20D4 Ford Tempo
  • U20D4 Ford Thunderbird
  • U20D4 Ford Transit
  • U20D4 Ford Transit Connect
  • U20D4 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.