C0684

C0684 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C0684 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.

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 C0684 Fault Code Meaning :

Ford C0684 Symptoms :

Ford C0684 Reasons :

How To Fix Ford C0684 Trouble Code ?

Which Ford cars have the code C0684?

  • C0684 Ford Aerostar
  • C0684 Ford Bronco
  • C0684 Ford C-Max
  • C0684 Ford C-Max Energi
  • C0684 Ford C-Max Hybrid
  • C0684 Ford Contour
  • C0684 Ford Crown Victoria
  • C0684 Ford EcoSport
  • C0684 Ford Econoline
  • C0684 Ford Edge
  • C0684 Ford Escape
  • C0684 Ford Escape Hybrid
  • C0684 Ford Escort
  • C0684 Ford Everest
  • C0684 Ford Excursion
  • C0684 Ford Expedition
  • C0684 Ford Explorer
  • C0684 Ford Explorer Sport Trac
  • C0684 Ford F-150
  • C0684 Ford F-250
  • C0684 Ford F-350
  • C0684 Ford Fiesta
  • C0684 Ford Flex
  • C0684 Ford Focus
  • C0684 Ford Focus Electric
  • C0684 Ford Freestar
  • C0684 Ford Freestyle
  • C0684 Ford Fusion
  • C0684 Ford Fusion Energi
  • C0684 Ford Fusion Hybrid
  • C0684 Ford Fusion Plug-In Hybrid
  • C0684 Ford GT
  • C0684 Ford Mustang
  • C0684 Ford Mustang Mach-E
  • C0684 Ford Mystique
  • C0684 Ford Probe
  • C0684 Ford Ranger
  • C0684 Ford Taurus
  • C0684 Ford Taurus X
  • C0684 Ford Tempo
  • C0684 Ford Thunderbird
  • C0684 Ford Transit
  • C0684 Ford Transit Connect
  • C0684 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.