U3429

U3429 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3429 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 U3429 Fault Code Meaning :

Ford U3429 Symptoms :

Ford U3429 Reasons :

How To Fix Ford U3429 Trouble Code ?

Which Ford cars have the code U3429?

  • U3429 Ford Aerostar
  • U3429 Ford Bronco
  • U3429 Ford C-Max
  • U3429 Ford C-Max Energi
  • U3429 Ford C-Max Hybrid
  • U3429 Ford Contour
  • U3429 Ford Crown Victoria
  • U3429 Ford EcoSport
  • U3429 Ford Econoline
  • U3429 Ford Edge
  • U3429 Ford Escape
  • U3429 Ford Escape Hybrid
  • U3429 Ford Escort
  • U3429 Ford Everest
  • U3429 Ford Excursion
  • U3429 Ford Expedition
  • U3429 Ford Explorer
  • U3429 Ford Explorer Sport Trac
  • U3429 Ford F-150
  • U3429 Ford F-250
  • U3429 Ford F-350
  • U3429 Ford Fiesta
  • U3429 Ford Flex
  • U3429 Ford Focus
  • U3429 Ford Focus Electric
  • U3429 Ford Freestar
  • U3429 Ford Freestyle
  • U3429 Ford Fusion
  • U3429 Ford Fusion Energi
  • U3429 Ford Fusion Hybrid
  • U3429 Ford Fusion Plug-In Hybrid
  • U3429 Ford GT
  • U3429 Ford Mustang
  • U3429 Ford Mustang Mach-E
  • U3429 Ford Mystique
  • U3429 Ford Probe
  • U3429 Ford Ranger
  • U3429 Ford Taurus
  • U3429 Ford Taurus X
  • U3429 Ford Tempo
  • U3429 Ford Thunderbird
  • U3429 Ford Transit
  • U3429 Ford Transit Connect
  • U3429 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.