B3994

B3994 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3994 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.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 top-of-clutch switch and bottom-of-clutch switch are both measured as closed at the same time. Troubleshoot for clutch switch shorted, or for a wiring fault between the clutch switch and the BHM.

Ford B3994 Fault Code Meaning :

Ford B3994 Symptoms :

Ford B3994 Reasons :

How To Fix Ford B3994 Trouble Code ?

Which Ford cars have the code B3994?

  • B3994 Ford Aerostar
  • B3994 Ford Bronco
  • B3994 Ford C-Max
  • B3994 Ford C-Max Energi
  • B3994 Ford C-Max Hybrid
  • B3994 Ford Contour
  • B3994 Ford Crown Victoria
  • B3994 Ford EcoSport
  • B3994 Ford Econoline
  • B3994 Ford Edge
  • B3994 Ford Escape
  • B3994 Ford Escape Hybrid
  • B3994 Ford Escort
  • B3994 Ford Everest
  • B3994 Ford Excursion
  • B3994 Ford Expedition
  • B3994 Ford Explorer
  • B3994 Ford Explorer Sport Trac
  • B3994 Ford F-150
  • B3994 Ford F-250
  • B3994 Ford F-350
  • B3994 Ford Fiesta
  • B3994 Ford Flex
  • B3994 Ford Focus
  • B3994 Ford Focus Electric
  • B3994 Ford Freestar
  • B3994 Ford Freestyle
  • B3994 Ford Fusion
  • B3994 Ford Fusion Energi
  • B3994 Ford Fusion Hybrid
  • B3994 Ford Fusion Plug-In Hybrid
  • B3994 Ford GT
  • B3994 Ford Mustang
  • B3994 Ford Mustang Mach-E
  • B3994 Ford Mystique
  • B3994 Ford Probe
  • B3994 Ford Ranger
  • B3994 Ford Taurus
  • B3994 Ford Taurus X
  • B3994 Ford Tempo
  • B3994 Ford Thunderbird
  • B3994 Ford Transit
  • B3994 Ford Transit Connect
  • B3994 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.