C3791

C3791 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3791 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.

The BHM measures the current on this circuit when the starter output is commanded ON. This fault indicates the magnetic switch or the wiring between the BHM and the magnetic switch is open circuit.

Ford C3791 Fault Code Meaning :

Ford C3791 Symptoms :

Ford C3791 Reasons :

How To Fix Ford C3791 Trouble Code ?

Which Ford cars have the code C3791?

  • C3791 Ford Aerostar
  • C3791 Ford Bronco
  • C3791 Ford C-Max
  • C3791 Ford C-Max Energi
  • C3791 Ford C-Max Hybrid
  • C3791 Ford Contour
  • C3791 Ford Crown Victoria
  • C3791 Ford EcoSport
  • C3791 Ford Econoline
  • C3791 Ford Edge
  • C3791 Ford Escape
  • C3791 Ford Escape Hybrid
  • C3791 Ford Escort
  • C3791 Ford Everest
  • C3791 Ford Excursion
  • C3791 Ford Expedition
  • C3791 Ford Explorer
  • C3791 Ford Explorer Sport Trac
  • C3791 Ford F-150
  • C3791 Ford F-250
  • C3791 Ford F-350
  • C3791 Ford Fiesta
  • C3791 Ford Flex
  • C3791 Ford Focus
  • C3791 Ford Focus Electric
  • C3791 Ford Freestar
  • C3791 Ford Freestyle
  • C3791 Ford Fusion
  • C3791 Ford Fusion Energi
  • C3791 Ford Fusion Hybrid
  • C3791 Ford Fusion Plug-In Hybrid
  • C3791 Ford GT
  • C3791 Ford Mustang
  • C3791 Ford Mustang Mach-E
  • C3791 Ford Mystique
  • C3791 Ford Probe
  • C3791 Ford Ranger
  • C3791 Ford Taurus
  • C3791 Ford Taurus X
  • C3791 Ford Tempo
  • C3791 Ford Thunderbird
  • C3791 Ford Transit
  • C3791 Ford Transit Connect
  • C3791 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.