C3686

C3686 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3686 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.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.

This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.

Ford C3686 Fault Code Meaning :

Ford C3686 Symptoms :

Ford C3686 Reasons :

How To Fix Ford C3686 Trouble Code ?

Which Ford cars have the code C3686?

  • C3686 Ford Aerostar
  • C3686 Ford Bronco
  • C3686 Ford C-Max
  • C3686 Ford C-Max Energi
  • C3686 Ford C-Max Hybrid
  • C3686 Ford Contour
  • C3686 Ford Crown Victoria
  • C3686 Ford EcoSport
  • C3686 Ford Econoline
  • C3686 Ford Edge
  • C3686 Ford Escape
  • C3686 Ford Escape Hybrid
  • C3686 Ford Escort
  • C3686 Ford Everest
  • C3686 Ford Excursion
  • C3686 Ford Expedition
  • C3686 Ford Explorer
  • C3686 Ford Explorer Sport Trac
  • C3686 Ford F-150
  • C3686 Ford F-250
  • C3686 Ford F-350
  • C3686 Ford Fiesta
  • C3686 Ford Flex
  • C3686 Ford Focus
  • C3686 Ford Focus Electric
  • C3686 Ford Freestar
  • C3686 Ford Freestyle
  • C3686 Ford Fusion
  • C3686 Ford Fusion Energi
  • C3686 Ford Fusion Hybrid
  • C3686 Ford Fusion Plug-In Hybrid
  • C3686 Ford GT
  • C3686 Ford Mustang
  • C3686 Ford Mustang Mach-E
  • C3686 Ford Mystique
  • C3686 Ford Probe
  • C3686 Ford Ranger
  • C3686 Ford Taurus
  • C3686 Ford Taurus X
  • C3686 Ford Tempo
  • C3686 Ford Thunderbird
  • C3686 Ford Transit
  • C3686 Ford Transit Connect
  • C3686 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.