C3981

C3981 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3981 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 ICU reads the wiper switch position and sends the status of the switch to the BHM. This fault becomes active when the ICU reads that both LO speed and HI speed are active at the same time.

Troubleshoot for a wiring short to ground fault on any of the CHM output or BHM output circuits discussed above. 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.

Ford C3981 Fault Code Meaning :

Ford C3981 Symptoms :

Ford C3981 Reasons :

How To Fix Ford C3981 Trouble Code ?

Which Ford cars have the code C3981?

  • C3981 Ford Aerostar
  • C3981 Ford Bronco
  • C3981 Ford C-Max
  • C3981 Ford C-Max Energi
  • C3981 Ford C-Max Hybrid
  • C3981 Ford Contour
  • C3981 Ford Crown Victoria
  • C3981 Ford EcoSport
  • C3981 Ford Econoline
  • C3981 Ford Edge
  • C3981 Ford Escape
  • C3981 Ford Escape Hybrid
  • C3981 Ford Escort
  • C3981 Ford Everest
  • C3981 Ford Excursion
  • C3981 Ford Expedition
  • C3981 Ford Explorer
  • C3981 Ford Explorer Sport Trac
  • C3981 Ford F-150
  • C3981 Ford F-250
  • C3981 Ford F-350
  • C3981 Ford Fiesta
  • C3981 Ford Flex
  • C3981 Ford Focus
  • C3981 Ford Focus Electric
  • C3981 Ford Freestar
  • C3981 Ford Freestyle
  • C3981 Ford Fusion
  • C3981 Ford Fusion Energi
  • C3981 Ford Fusion Hybrid
  • C3981 Ford Fusion Plug-In Hybrid
  • C3981 Ford GT
  • C3981 Ford Mustang
  • C3981 Ford Mustang Mach-E
  • C3981 Ford Mystique
  • C3981 Ford Probe
  • C3981 Ford Ranger
  • C3981 Ford Taurus
  • C3981 Ford Taurus X
  • C3981 Ford Tempo
  • C3981 Ford Thunderbird
  • C3981 Ford Transit
  • C3981 Ford Transit Connect
  • C3981 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.