P399F

P399F Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P399F 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 ICU reads the wiper switch position and sends the status of the switch to the BHM. This fault becomes active when the ICU reads that both LO speed and HI speed are active at the same time.

The BHM measures the current on this circuit when the headlamp output is commanded ON. This fault indicates that the left high beam headlamp circuit is drawing more current than it is designed to supply and possibly there is a wiring fault shorting this circuit to ground.

Ford P399F Fault Code Meaning :

Ford P399F Symptoms :

Ford P399F Reasons :

How To Fix Ford P399F Trouble Code ?

Which Ford cars have the code P399F?

  • P399F Ford Aerostar
  • P399F Ford Bronco
  • P399F Ford C-Max
  • P399F Ford C-Max Energi
  • P399F Ford C-Max Hybrid
  • P399F Ford Contour
  • P399F Ford Crown Victoria
  • P399F Ford EcoSport
  • P399F Ford Econoline
  • P399F Ford Edge
  • P399F Ford Escape
  • P399F Ford Escape Hybrid
  • P399F Ford Escort
  • P399F Ford Everest
  • P399F Ford Excursion
  • P399F Ford Expedition
  • P399F Ford Explorer
  • P399F Ford Explorer Sport Trac
  • P399F Ford F-150
  • P399F Ford F-250
  • P399F Ford F-350
  • P399F Ford Fiesta
  • P399F Ford Flex
  • P399F Ford Focus
  • P399F Ford Focus Electric
  • P399F Ford Freestar
  • P399F Ford Freestyle
  • P399F Ford Fusion
  • P399F Ford Fusion Energi
  • P399F Ford Fusion Hybrid
  • P399F Ford Fusion Plug-In Hybrid
  • P399F Ford GT
  • P399F Ford Mustang
  • P399F Ford Mustang Mach-E
  • P399F Ford Mystique
  • P399F Ford Probe
  • P399F Ford Ranger
  • P399F Ford Taurus
  • P399F Ford Taurus X
  • P399F Ford Tempo
  • P399F Ford Thunderbird
  • P399F Ford Transit
  • P399F Ford Transit Connect
  • P399F 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.