P399D

P399D Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P399D 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 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 P399D Fault Code Meaning :

Ford P399D Symptoms :

Ford P399D Reasons :

How To Fix Ford P399D Trouble Code ?

Which Ford cars have the code P399D?

  • P399D Ford Aerostar
  • P399D Ford Bronco
  • P399D Ford C-Max
  • P399D Ford C-Max Energi
  • P399D Ford C-Max Hybrid
  • P399D Ford Contour
  • P399D Ford Crown Victoria
  • P399D Ford EcoSport
  • P399D Ford Econoline
  • P399D Ford Edge
  • P399D Ford Escape
  • P399D Ford Escape Hybrid
  • P399D Ford Escort
  • P399D Ford Everest
  • P399D Ford Excursion
  • P399D Ford Expedition
  • P399D Ford Explorer
  • P399D Ford Explorer Sport Trac
  • P399D Ford F-150
  • P399D Ford F-250
  • P399D Ford F-350
  • P399D Ford Fiesta
  • P399D Ford Flex
  • P399D Ford Focus
  • P399D Ford Focus Electric
  • P399D Ford Freestar
  • P399D Ford Freestyle
  • P399D Ford Fusion
  • P399D Ford Fusion Energi
  • P399D Ford Fusion Hybrid
  • P399D Ford Fusion Plug-In Hybrid
  • P399D Ford GT
  • P399D Ford Mustang
  • P399D Ford Mustang Mach-E
  • P399D Ford Mystique
  • P399D Ford Probe
  • P399D Ford Ranger
  • P399D Ford Taurus
  • P399D Ford Taurus X
  • P399D Ford Tempo
  • P399D Ford Thunderbird
  • P399D Ford Transit
  • P399D Ford Transit Connect
  • P399D 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.