C2391

C2391 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C2391 Diagnosis

The axle lift 2 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for axle lift 2 air solenoid fault, and for air pressure switch short circuit fault.The position information for the switch becomes Not Available. Remove the duplicate Smart Switch, then use ServiceLink to verify that the correct Smart Switches are configured for the vehicle.

A comparison of pressures from all sensors is made. The smallest difference between the three is determined and a reference pressure is calculated. The Barometric pressure sensor value is compared to the reference value and if the difference is above the threshold a DTC is reported.

Ford C2391 Fault Code Meaning :

Ford C2391 Symptoms :

Ford C2391 Reasons :

How To Fix Ford C2391 Trouble Code ?

Which Ford cars have the code C2391?

  • C2391 Ford Aerostar
  • C2391 Ford Bronco
  • C2391 Ford C-Max
  • C2391 Ford C-Max Energi
  • C2391 Ford C-Max Hybrid
  • C2391 Ford Contour
  • C2391 Ford Crown Victoria
  • C2391 Ford EcoSport
  • C2391 Ford Econoline
  • C2391 Ford Edge
  • C2391 Ford Escape
  • C2391 Ford Escape Hybrid
  • C2391 Ford Escort
  • C2391 Ford Everest
  • C2391 Ford Excursion
  • C2391 Ford Expedition
  • C2391 Ford Explorer
  • C2391 Ford Explorer Sport Trac
  • C2391 Ford F-150
  • C2391 Ford F-250
  • C2391 Ford F-350
  • C2391 Ford Fiesta
  • C2391 Ford Flex
  • C2391 Ford Focus
  • C2391 Ford Focus Electric
  • C2391 Ford Freestar
  • C2391 Ford Freestyle
  • C2391 Ford Fusion
  • C2391 Ford Fusion Energi
  • C2391 Ford Fusion Hybrid
  • C2391 Ford Fusion Plug-In Hybrid
  • C2391 Ford GT
  • C2391 Ford Mustang
  • C2391 Ford Mustang Mach-E
  • C2391 Ford Mystique
  • C2391 Ford Probe
  • C2391 Ford Ranger
  • C2391 Ford Taurus
  • C2391 Ford Taurus X
  • C2391 Ford Tempo
  • C2391 Ford Thunderbird
  • C2391 Ford Transit
  • C2391 Ford Transit Connect
  • C2391 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.