C3986

C3986 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3986 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 C3986 Fault Code Meaning :

Ford C3986 Symptoms :

Ford C3986 Reasons :

How To Fix Ford C3986 Trouble Code ?

Which Ford cars have the code C3986?

  • C3986 Ford Aerostar
  • C3986 Ford Bronco
  • C3986 Ford C-Max
  • C3986 Ford C-Max Energi
  • C3986 Ford C-Max Hybrid
  • C3986 Ford Contour
  • C3986 Ford Crown Victoria
  • C3986 Ford EcoSport
  • C3986 Ford Econoline
  • C3986 Ford Edge
  • C3986 Ford Escape
  • C3986 Ford Escape Hybrid
  • C3986 Ford Escort
  • C3986 Ford Everest
  • C3986 Ford Excursion
  • C3986 Ford Expedition
  • C3986 Ford Explorer
  • C3986 Ford Explorer Sport Trac
  • C3986 Ford F-150
  • C3986 Ford F-250
  • C3986 Ford F-350
  • C3986 Ford Fiesta
  • C3986 Ford Flex
  • C3986 Ford Focus
  • C3986 Ford Focus Electric
  • C3986 Ford Freestar
  • C3986 Ford Freestyle
  • C3986 Ford Fusion
  • C3986 Ford Fusion Energi
  • C3986 Ford Fusion Hybrid
  • C3986 Ford Fusion Plug-In Hybrid
  • C3986 Ford GT
  • C3986 Ford Mustang
  • C3986 Ford Mustang Mach-E
  • C3986 Ford Mystique
  • C3986 Ford Probe
  • C3986 Ford Ranger
  • C3986 Ford Taurus
  • C3986 Ford Taurus X
  • C3986 Ford Tempo
  • C3986 Ford Thunderbird
  • C3986 Ford Transit
  • C3986 Ford Transit Connect
  • C3986 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.