C0394

C0394 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C0394 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 C0394 Fault Code Meaning :

Ford C0394 Symptoms :

Ford C0394 Reasons :

How To Fix Ford C0394 Trouble Code ?

Which Ford cars have the code C0394?

  • C0394 Ford Aerostar
  • C0394 Ford Bronco
  • C0394 Ford C-Max
  • C0394 Ford C-Max Energi
  • C0394 Ford C-Max Hybrid
  • C0394 Ford Contour
  • C0394 Ford Crown Victoria
  • C0394 Ford EcoSport
  • C0394 Ford Econoline
  • C0394 Ford Edge
  • C0394 Ford Escape
  • C0394 Ford Escape Hybrid
  • C0394 Ford Escort
  • C0394 Ford Everest
  • C0394 Ford Excursion
  • C0394 Ford Expedition
  • C0394 Ford Explorer
  • C0394 Ford Explorer Sport Trac
  • C0394 Ford F-150
  • C0394 Ford F-250
  • C0394 Ford F-350
  • C0394 Ford Fiesta
  • C0394 Ford Flex
  • C0394 Ford Focus
  • C0394 Ford Focus Electric
  • C0394 Ford Freestar
  • C0394 Ford Freestyle
  • C0394 Ford Fusion
  • C0394 Ford Fusion Energi
  • C0394 Ford Fusion Hybrid
  • C0394 Ford Fusion Plug-In Hybrid
  • C0394 Ford GT
  • C0394 Ford Mustang
  • C0394 Ford Mustang Mach-E
  • C0394 Ford Mystique
  • C0394 Ford Probe
  • C0394 Ford Ranger
  • C0394 Ford Taurus
  • C0394 Ford Taurus X
  • C0394 Ford Tempo
  • C0394 Ford Thunderbird
  • C0394 Ford Transit
  • C0394 Ford Transit Connect
  • C0394 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.