U3986

U3986 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3986 Diagnosis

The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open circuit fault.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

The BHM measures the current on this circuit when the starter output is commanded ON. This fault indicates the magnetic switch or the wiring between the BHM and the magnetic switch is open circuit.

Ford U3986 Fault Code Meaning :

Ford U3986 Symptoms :

Ford U3986 Reasons :

How To Fix Ford U3986 Trouble Code ?

Which Ford cars have the code U3986?

  • U3986 Ford Aerostar
  • U3986 Ford Bronco
  • U3986 Ford C-Max
  • U3986 Ford C-Max Energi
  • U3986 Ford C-Max Hybrid
  • U3986 Ford Contour
  • U3986 Ford Crown Victoria
  • U3986 Ford EcoSport
  • U3986 Ford Econoline
  • U3986 Ford Edge
  • U3986 Ford Escape
  • U3986 Ford Escape Hybrid
  • U3986 Ford Escort
  • U3986 Ford Everest
  • U3986 Ford Excursion
  • U3986 Ford Expedition
  • U3986 Ford Explorer
  • U3986 Ford Explorer Sport Trac
  • U3986 Ford F-150
  • U3986 Ford F-250
  • U3986 Ford F-350
  • U3986 Ford Fiesta
  • U3986 Ford Flex
  • U3986 Ford Focus
  • U3986 Ford Focus Electric
  • U3986 Ford Freestar
  • U3986 Ford Freestyle
  • U3986 Ford Fusion
  • U3986 Ford Fusion Energi
  • U3986 Ford Fusion Hybrid
  • U3986 Ford Fusion Plug-In Hybrid
  • U3986 Ford GT
  • U3986 Ford Mustang
  • U3986 Ford Mustang Mach-E
  • U3986 Ford Mystique
  • U3986 Ford Probe
  • U3986 Ford Ranger
  • U3986 Ford Taurus
  • U3986 Ford Taurus X
  • U3986 Ford Tempo
  • U3986 Ford Thunderbird
  • U3986 Ford Transit
  • U3986 Ford Transit Connect
  • U3986 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.