P939D

P939D Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P939D Diagnosis

The CHM does not suupport PWM type DRLs. The vehicle has a BHM mismatch with the CHM. Replace the CHM with one that is compatible with the BHM.The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.

Ford P939D Fault Code Meaning :

Ford P939D Symptoms :

Ford P939D Reasons :

How To Fix Ford P939D Trouble Code ?

Which Ford cars have the code P939D?

  • P939D Ford Aerostar
  • P939D Ford Bronco
  • P939D Ford C-Max
  • P939D Ford C-Max Energi
  • P939D Ford C-Max Hybrid
  • P939D Ford Contour
  • P939D Ford Crown Victoria
  • P939D Ford EcoSport
  • P939D Ford Econoline
  • P939D Ford Edge
  • P939D Ford Escape
  • P939D Ford Escape Hybrid
  • P939D Ford Escort
  • P939D Ford Everest
  • P939D Ford Excursion
  • P939D Ford Expedition
  • P939D Ford Explorer
  • P939D Ford Explorer Sport Trac
  • P939D Ford F-150
  • P939D Ford F-250
  • P939D Ford F-350
  • P939D Ford Fiesta
  • P939D Ford Flex
  • P939D Ford Focus
  • P939D Ford Focus Electric
  • P939D Ford Freestar
  • P939D Ford Freestyle
  • P939D Ford Fusion
  • P939D Ford Fusion Energi
  • P939D Ford Fusion Hybrid
  • P939D Ford Fusion Plug-In Hybrid
  • P939D Ford GT
  • P939D Ford Mustang
  • P939D Ford Mustang Mach-E
  • P939D Ford Mystique
  • P939D Ford Probe
  • P939D Ford Ranger
  • P939D Ford Taurus
  • P939D Ford Taurus X
  • P939D Ford Tempo
  • P939D Ford Thunderbird
  • P939D Ford Transit
  • P939D Ford Transit Connect
  • P939D 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.