P3686

P3686 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3686 Diagnosis

The fuse in the main PDM powering this circuit may be open. The root cause could be excessive loads on an output, or a short to ground in the VBAT2 supply to the CHM.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 P3686 Fault Code Meaning :

Ford P3686 Symptoms :

Ford P3686 Reasons :

How To Fix Ford P3686 Trouble Code ?

Which Ford cars have the code P3686?

  • P3686 Ford Aerostar
  • P3686 Ford Bronco
  • P3686 Ford C-Max
  • P3686 Ford C-Max Energi
  • P3686 Ford C-Max Hybrid
  • P3686 Ford Contour
  • P3686 Ford Crown Victoria
  • P3686 Ford EcoSport
  • P3686 Ford Econoline
  • P3686 Ford Edge
  • P3686 Ford Escape
  • P3686 Ford Escape Hybrid
  • P3686 Ford Escort
  • P3686 Ford Everest
  • P3686 Ford Excursion
  • P3686 Ford Expedition
  • P3686 Ford Explorer
  • P3686 Ford Explorer Sport Trac
  • P3686 Ford F-150
  • P3686 Ford F-250
  • P3686 Ford F-350
  • P3686 Ford Fiesta
  • P3686 Ford Flex
  • P3686 Ford Focus
  • P3686 Ford Focus Electric
  • P3686 Ford Freestar
  • P3686 Ford Freestyle
  • P3686 Ford Fusion
  • P3686 Ford Fusion Energi
  • P3686 Ford Fusion Hybrid
  • P3686 Ford Fusion Plug-In Hybrid
  • P3686 Ford GT
  • P3686 Ford Mustang
  • P3686 Ford Mustang Mach-E
  • P3686 Ford Mystique
  • P3686 Ford Probe
  • P3686 Ford Ranger
  • P3686 Ford Taurus
  • P3686 Ford Taurus X
  • P3686 Ford Tempo
  • P3686 Ford Thunderbird
  • P3686 Ford Transit
  • P3686 Ford Transit Connect
  • P3686 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.