B3945

B3945 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3945 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 BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded OFF.

The disconnected pipe malfunction is detected when the ventilator tube from the valve cover to the separator device is disconnected resulting in a pressure below the lower limit.Both of these malfunctions will result in a DTC being set.

Ford B3945 Fault Code Meaning :

Ford B3945 Symptoms :

Ford B3945 Reasons :

How To Fix Ford B3945 Trouble Code ?

Which Ford cars have the code B3945?

  • B3945 Ford Aerostar
  • B3945 Ford Bronco
  • B3945 Ford C-Max
  • B3945 Ford C-Max Energi
  • B3945 Ford C-Max Hybrid
  • B3945 Ford Contour
  • B3945 Ford Crown Victoria
  • B3945 Ford EcoSport
  • B3945 Ford Econoline
  • B3945 Ford Edge
  • B3945 Ford Escape
  • B3945 Ford Escape Hybrid
  • B3945 Ford Escort
  • B3945 Ford Everest
  • B3945 Ford Excursion
  • B3945 Ford Expedition
  • B3945 Ford Explorer
  • B3945 Ford Explorer Sport Trac
  • B3945 Ford F-150
  • B3945 Ford F-250
  • B3945 Ford F-350
  • B3945 Ford Fiesta
  • B3945 Ford Flex
  • B3945 Ford Focus
  • B3945 Ford Focus Electric
  • B3945 Ford Freestar
  • B3945 Ford Freestyle
  • B3945 Ford Fusion
  • B3945 Ford Fusion Energi
  • B3945 Ford Fusion Hybrid
  • B3945 Ford Fusion Plug-In Hybrid
  • B3945 Ford GT
  • B3945 Ford Mustang
  • B3945 Ford Mustang Mach-E
  • B3945 Ford Mystique
  • B3945 Ford Probe
  • B3945 Ford Ranger
  • B3945 Ford Taurus
  • B3945 Ford Taurus X
  • B3945 Ford Tempo
  • B3945 Ford Thunderbird
  • B3945 Ford Transit
  • B3945 Ford Transit Connect
  • B3945 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.