B3981

B3981 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3981 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 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.

Engine starting is disabled and other optional functions may be interrupted until the fault is corrected and the ignition switch is cycled.

Ford B3981 Fault Code Meaning :

Ford B3981 Symptoms :

Ford B3981 Reasons :

How To Fix Ford B3981 Trouble Code ?

Which Ford cars have the code B3981?

  • B3981 Ford Aerostar
  • B3981 Ford Bronco
  • B3981 Ford C-Max
  • B3981 Ford C-Max Energi
  • B3981 Ford C-Max Hybrid
  • B3981 Ford Contour
  • B3981 Ford Crown Victoria
  • B3981 Ford EcoSport
  • B3981 Ford Econoline
  • B3981 Ford Edge
  • B3981 Ford Escape
  • B3981 Ford Escape Hybrid
  • B3981 Ford Escort
  • B3981 Ford Everest
  • B3981 Ford Excursion
  • B3981 Ford Expedition
  • B3981 Ford Explorer
  • B3981 Ford Explorer Sport Trac
  • B3981 Ford F-150
  • B3981 Ford F-250
  • B3981 Ford F-350
  • B3981 Ford Fiesta
  • B3981 Ford Flex
  • B3981 Ford Focus
  • B3981 Ford Focus Electric
  • B3981 Ford Freestar
  • B3981 Ford Freestyle
  • B3981 Ford Fusion
  • B3981 Ford Fusion Energi
  • B3981 Ford Fusion Hybrid
  • B3981 Ford Fusion Plug-In Hybrid
  • B3981 Ford GT
  • B3981 Ford Mustang
  • B3981 Ford Mustang Mach-E
  • B3981 Ford Mystique
  • B3981 Ford Probe
  • B3981 Ford Ranger
  • B3981 Ford Taurus
  • B3981 Ford Taurus X
  • B3981 Ford Tempo
  • B3981 Ford Thunderbird
  • B3981 Ford Transit
  • B3981 Ford Transit Connect
  • B3981 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.