C3681

C3681 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3681 Diagnosis

This fault indicates that the circuit is drawing more current than it is designed to supply, and possibly there is a wiring fault shorting this circuit to ground. The fault remains active until the ignition is turned ON when the fault is no longer present.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 OFF.

The disconnected pipe malfunction is detected when the ventilator tube from the valve cover to the separator device is disconnected resulting in a pressure below the lower limit.Both of these malfunctions will result in a DTC being set.

Ford C3681 Fault Code Meaning :

Ford C3681 Symptoms :

Ford C3681 Reasons :

How To Fix Ford C3681 Trouble Code ?

Which Ford cars have the code C3681?

  • C3681 Ford Aerostar
  • C3681 Ford Bronco
  • C3681 Ford C-Max
  • C3681 Ford C-Max Energi
  • C3681 Ford C-Max Hybrid
  • C3681 Ford Contour
  • C3681 Ford Crown Victoria
  • C3681 Ford EcoSport
  • C3681 Ford Econoline
  • C3681 Ford Edge
  • C3681 Ford Escape
  • C3681 Ford Escape Hybrid
  • C3681 Ford Escort
  • C3681 Ford Everest
  • C3681 Ford Excursion
  • C3681 Ford Expedition
  • C3681 Ford Explorer
  • C3681 Ford Explorer Sport Trac
  • C3681 Ford F-150
  • C3681 Ford F-250
  • C3681 Ford F-350
  • C3681 Ford Fiesta
  • C3681 Ford Flex
  • C3681 Ford Focus
  • C3681 Ford Focus Electric
  • C3681 Ford Freestar
  • C3681 Ford Freestyle
  • C3681 Ford Fusion
  • C3681 Ford Fusion Energi
  • C3681 Ford Fusion Hybrid
  • C3681 Ford Fusion Plug-In Hybrid
  • C3681 Ford GT
  • C3681 Ford Mustang
  • C3681 Ford Mustang Mach-E
  • C3681 Ford Mystique
  • C3681 Ford Probe
  • C3681 Ford Ranger
  • C3681 Ford Taurus
  • C3681 Ford Taurus X
  • C3681 Ford Tempo
  • C3681 Ford Thunderbird
  • C3681 Ford Transit
  • C3681 Ford Transit Connect
  • C3681 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.