C3901

C3901 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3901 Diagnosis

The PTO 1 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for PTO 2 air solenoid fault, and for air pressure switch short circuit fault.The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.

The suspension proportioning output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for suspension proportioning air solenoid fault, and for air pressure switch short circuit fault.

Ford C3901 Fault Code Meaning :

Ford C3901 Symptoms :

Ford C3901 Reasons :

How To Fix Ford C3901 Trouble Code ?

Which Ford cars have the code C3901?

  • C3901 Ford Aerostar
  • C3901 Ford Bronco
  • C3901 Ford C-Max
  • C3901 Ford C-Max Energi
  • C3901 Ford C-Max Hybrid
  • C3901 Ford Contour
  • C3901 Ford Crown Victoria
  • C3901 Ford EcoSport
  • C3901 Ford Econoline
  • C3901 Ford Edge
  • C3901 Ford Escape
  • C3901 Ford Escape Hybrid
  • C3901 Ford Escort
  • C3901 Ford Everest
  • C3901 Ford Excursion
  • C3901 Ford Expedition
  • C3901 Ford Explorer
  • C3901 Ford Explorer Sport Trac
  • C3901 Ford F-150
  • C3901 Ford F-250
  • C3901 Ford F-350
  • C3901 Ford Fiesta
  • C3901 Ford Flex
  • C3901 Ford Focus
  • C3901 Ford Focus Electric
  • C3901 Ford Freestar
  • C3901 Ford Freestyle
  • C3901 Ford Fusion
  • C3901 Ford Fusion Energi
  • C3901 Ford Fusion Hybrid
  • C3901 Ford Fusion Plug-In Hybrid
  • C3901 Ford GT
  • C3901 Ford Mustang
  • C3901 Ford Mustang Mach-E
  • C3901 Ford Mystique
  • C3901 Ford Probe
  • C3901 Ford Ranger
  • C3901 Ford Taurus
  • C3901 Ford Taurus X
  • C3901 Ford Tempo
  • C3901 Ford Thunderbird
  • C3901 Ford Transit
  • C3901 Ford Transit Connect
  • C3901 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.