P439A

P439A Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P439A Diagnosis

The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.The wiper switch is in the OFF position and the BHM park input from the wiper motor is not in park position. Troubleshoot for a wiper motor park switch circuit fault.

When the engine is in idle or in low engine speed and torque condition, the differential pressure over the DPF is expected to be close to zero. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford P439A Fault Code Meaning :

Ford P439A Symptoms :

Ford P439A Reasons :

How To Fix Ford P439A Trouble Code ?

Which Ford cars have the code P439A?

  • P439A Ford Aerostar
  • P439A Ford Bronco
  • P439A Ford C-Max
  • P439A Ford C-Max Energi
  • P439A Ford C-Max Hybrid
  • P439A Ford Contour
  • P439A Ford Crown Victoria
  • P439A Ford EcoSport
  • P439A Ford Econoline
  • P439A Ford Edge
  • P439A Ford Escape
  • P439A Ford Escape Hybrid
  • P439A Ford Escort
  • P439A Ford Everest
  • P439A Ford Excursion
  • P439A Ford Expedition
  • P439A Ford Explorer
  • P439A Ford Explorer Sport Trac
  • P439A Ford F-150
  • P439A Ford F-250
  • P439A Ford F-350
  • P439A Ford Fiesta
  • P439A Ford Flex
  • P439A Ford Focus
  • P439A Ford Focus Electric
  • P439A Ford Freestar
  • P439A Ford Freestyle
  • P439A Ford Fusion
  • P439A Ford Fusion Energi
  • P439A Ford Fusion Hybrid
  • P439A Ford Fusion Plug-In Hybrid
  • P439A Ford GT
  • P439A Ford Mustang
  • P439A Ford Mustang Mach-E
  • P439A Ford Mystique
  • P439A Ford Probe
  • P439A Ford Ranger
  • P439A Ford Taurus
  • P439A Ford Taurus X
  • P439A Ford Tempo
  • P439A Ford Thunderbird
  • P439A Ford Transit
  • P439A Ford Transit Connect
  • P439A 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.