C0665

C0665 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C0665 Diagnosis

The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.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 C0665 Fault Code Meaning :

Ford C0665 Symptoms :

Ford C0665 Reasons :

How To Fix Ford C0665 Trouble Code ?

Which Ford cars have the code C0665?

  • C0665 Ford Aerostar
  • C0665 Ford Bronco
  • C0665 Ford C-Max
  • C0665 Ford C-Max Energi
  • C0665 Ford C-Max Hybrid
  • C0665 Ford Contour
  • C0665 Ford Crown Victoria
  • C0665 Ford EcoSport
  • C0665 Ford Econoline
  • C0665 Ford Edge
  • C0665 Ford Escape
  • C0665 Ford Escape Hybrid
  • C0665 Ford Escort
  • C0665 Ford Everest
  • C0665 Ford Excursion
  • C0665 Ford Expedition
  • C0665 Ford Explorer
  • C0665 Ford Explorer Sport Trac
  • C0665 Ford F-150
  • C0665 Ford F-250
  • C0665 Ford F-350
  • C0665 Ford Fiesta
  • C0665 Ford Flex
  • C0665 Ford Focus
  • C0665 Ford Focus Electric
  • C0665 Ford Freestar
  • C0665 Ford Freestyle
  • C0665 Ford Fusion
  • C0665 Ford Fusion Energi
  • C0665 Ford Fusion Hybrid
  • C0665 Ford Fusion Plug-In Hybrid
  • C0665 Ford GT
  • C0665 Ford Mustang
  • C0665 Ford Mustang Mach-E
  • C0665 Ford Mystique
  • C0665 Ford Probe
  • C0665 Ford Ranger
  • C0665 Ford Taurus
  • C0665 Ford Taurus X
  • C0665 Ford Tempo
  • C0665 Ford Thunderbird
  • C0665 Ford Transit
  • C0665 Ford Transit Connect
  • C0665 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.