B3946

B3946 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3946 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.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 B3946 Fault Code Meaning :

Ford B3946 Symptoms :

Ford B3946 Reasons :

How To Fix Ford B3946 Trouble Code ?

Which Ford cars have the code B3946?

  • B3946 Ford Aerostar
  • B3946 Ford Bronco
  • B3946 Ford C-Max
  • B3946 Ford C-Max Energi
  • B3946 Ford C-Max Hybrid
  • B3946 Ford Contour
  • B3946 Ford Crown Victoria
  • B3946 Ford EcoSport
  • B3946 Ford Econoline
  • B3946 Ford Edge
  • B3946 Ford Escape
  • B3946 Ford Escape Hybrid
  • B3946 Ford Escort
  • B3946 Ford Everest
  • B3946 Ford Excursion
  • B3946 Ford Expedition
  • B3946 Ford Explorer
  • B3946 Ford Explorer Sport Trac
  • B3946 Ford F-150
  • B3946 Ford F-250
  • B3946 Ford F-350
  • B3946 Ford Fiesta
  • B3946 Ford Flex
  • B3946 Ford Focus
  • B3946 Ford Focus Electric
  • B3946 Ford Freestar
  • B3946 Ford Freestyle
  • B3946 Ford Fusion
  • B3946 Ford Fusion Energi
  • B3946 Ford Fusion Hybrid
  • B3946 Ford Fusion Plug-In Hybrid
  • B3946 Ford GT
  • B3946 Ford Mustang
  • B3946 Ford Mustang Mach-E
  • B3946 Ford Mystique
  • B3946 Ford Probe
  • B3946 Ford Ranger
  • B3946 Ford Taurus
  • B3946 Ford Taurus X
  • B3946 Ford Tempo
  • B3946 Ford Thunderbird
  • B3946 Ford Transit
  • B3946 Ford Transit Connect
  • B3946 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.