C0791

C0791 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C0791 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 C0791 Fault Code Meaning :

Ford C0791 Symptoms :

Ford C0791 Reasons :

How To Fix Ford C0791 Trouble Code ?

Which Ford cars have the code C0791?

  • C0791 Ford Aerostar
  • C0791 Ford Bronco
  • C0791 Ford C-Max
  • C0791 Ford C-Max Energi
  • C0791 Ford C-Max Hybrid
  • C0791 Ford Contour
  • C0791 Ford Crown Victoria
  • C0791 Ford EcoSport
  • C0791 Ford Econoline
  • C0791 Ford Edge
  • C0791 Ford Escape
  • C0791 Ford Escape Hybrid
  • C0791 Ford Escort
  • C0791 Ford Everest
  • C0791 Ford Excursion
  • C0791 Ford Expedition
  • C0791 Ford Explorer
  • C0791 Ford Explorer Sport Trac
  • C0791 Ford F-150
  • C0791 Ford F-250
  • C0791 Ford F-350
  • C0791 Ford Fiesta
  • C0791 Ford Flex
  • C0791 Ford Focus
  • C0791 Ford Focus Electric
  • C0791 Ford Freestar
  • C0791 Ford Freestyle
  • C0791 Ford Fusion
  • C0791 Ford Fusion Energi
  • C0791 Ford Fusion Hybrid
  • C0791 Ford Fusion Plug-In Hybrid
  • C0791 Ford GT
  • C0791 Ford Mustang
  • C0791 Ford Mustang Mach-E
  • C0791 Ford Mystique
  • C0791 Ford Probe
  • C0791 Ford Ranger
  • C0791 Ford Taurus
  • C0791 Ford Taurus X
  • C0791 Ford Tempo
  • C0791 Ford Thunderbird
  • C0791 Ford Transit
  • C0791 Ford Transit Connect
  • C0791 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.