P0439

P0439 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P0439 Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. 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 P0439 Fault Code Meaning :

Ford P0439 Symptoms :

Ford P0439 Reasons :

How To Fix Ford P0439 Trouble Code ?

Which Ford cars have the code P0439?

  • P0439 Ford Aerostar
  • P0439 Ford Bronco
  • P0439 Ford C-Max
  • P0439 Ford C-Max Energi
  • P0439 Ford C-Max Hybrid
  • P0439 Ford Contour
  • P0439 Ford Crown Victoria
  • P0439 Ford EcoSport
  • P0439 Ford Econoline
  • P0439 Ford Edge
  • P0439 Ford Escape
  • P0439 Ford Escape Hybrid
  • P0439 Ford Escort
  • P0439 Ford Everest
  • P0439 Ford Excursion
  • P0439 Ford Expedition
  • P0439 Ford Explorer
  • P0439 Ford Explorer Sport Trac
  • P0439 Ford F-150
  • P0439 Ford F-250
  • P0439 Ford F-350
  • P0439 Ford Fiesta
  • P0439 Ford Flex
  • P0439 Ford Focus
  • P0439 Ford Focus Electric
  • P0439 Ford Freestar
  • P0439 Ford Freestyle
  • P0439 Ford Fusion
  • P0439 Ford Fusion Energi
  • P0439 Ford Fusion Hybrid
  • P0439 Ford Fusion Plug-In Hybrid
  • P0439 Ford GT
  • P0439 Ford Mustang
  • P0439 Ford Mustang Mach-E
  • P0439 Ford Mystique
  • P0439 Ford Probe
  • P0439 Ford Ranger
  • P0439 Ford Taurus
  • P0439 Ford Taurus X
  • P0439 Ford Tempo
  • P0439 Ford Thunderbird
  • P0439 Ford Transit
  • P0439 Ford Transit Connect
  • P0439 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.