P3879

P3879 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3879 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 P3879 Fault Code Meaning :

Ford P3879 Symptoms :

Ford P3879 Reasons :

How To Fix Ford P3879 Trouble Code ?

Which Ford cars have the code P3879?

  • P3879 Ford Aerostar
  • P3879 Ford Bronco
  • P3879 Ford C-Max
  • P3879 Ford C-Max Energi
  • P3879 Ford C-Max Hybrid
  • P3879 Ford Contour
  • P3879 Ford Crown Victoria
  • P3879 Ford EcoSport
  • P3879 Ford Econoline
  • P3879 Ford Edge
  • P3879 Ford Escape
  • P3879 Ford Escape Hybrid
  • P3879 Ford Escort
  • P3879 Ford Everest
  • P3879 Ford Excursion
  • P3879 Ford Expedition
  • P3879 Ford Explorer
  • P3879 Ford Explorer Sport Trac
  • P3879 Ford F-150
  • P3879 Ford F-250
  • P3879 Ford F-350
  • P3879 Ford Fiesta
  • P3879 Ford Flex
  • P3879 Ford Focus
  • P3879 Ford Focus Electric
  • P3879 Ford Freestar
  • P3879 Ford Freestyle
  • P3879 Ford Fusion
  • P3879 Ford Fusion Energi
  • P3879 Ford Fusion Hybrid
  • P3879 Ford Fusion Plug-In Hybrid
  • P3879 Ford GT
  • P3879 Ford Mustang
  • P3879 Ford Mustang Mach-E
  • P3879 Ford Mystique
  • P3879 Ford Probe
  • P3879 Ford Ranger
  • P3879 Ford Taurus
  • P3879 Ford Taurus X
  • P3879 Ford Tempo
  • P3879 Ford Thunderbird
  • P3879 Ford Transit
  • P3879 Ford Transit Connect
  • P3879 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.