B3644

B3644 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3644 Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. 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 B3644 Fault Code Meaning :

Ford B3644 Symptoms :

Ford B3644 Reasons :

How To Fix Ford B3644 Trouble Code ?

Which Ford cars have the code B3644?

  • B3644 Ford Aerostar
  • B3644 Ford Bronco
  • B3644 Ford C-Max
  • B3644 Ford C-Max Energi
  • B3644 Ford C-Max Hybrid
  • B3644 Ford Contour
  • B3644 Ford Crown Victoria
  • B3644 Ford EcoSport
  • B3644 Ford Econoline
  • B3644 Ford Edge
  • B3644 Ford Escape
  • B3644 Ford Escape Hybrid
  • B3644 Ford Escort
  • B3644 Ford Everest
  • B3644 Ford Excursion
  • B3644 Ford Expedition
  • B3644 Ford Explorer
  • B3644 Ford Explorer Sport Trac
  • B3644 Ford F-150
  • B3644 Ford F-250
  • B3644 Ford F-350
  • B3644 Ford Fiesta
  • B3644 Ford Flex
  • B3644 Ford Focus
  • B3644 Ford Focus Electric
  • B3644 Ford Freestar
  • B3644 Ford Freestyle
  • B3644 Ford Fusion
  • B3644 Ford Fusion Energi
  • B3644 Ford Fusion Hybrid
  • B3644 Ford Fusion Plug-In Hybrid
  • B3644 Ford GT
  • B3644 Ford Mustang
  • B3644 Ford Mustang Mach-E
  • B3644 Ford Mystique
  • B3644 Ford Probe
  • B3644 Ford Ranger
  • B3644 Ford Taurus
  • B3644 Ford Taurus X
  • B3644 Ford Tempo
  • B3644 Ford Thunderbird
  • B3644 Ford Transit
  • B3644 Ford Transit Connect
  • B3644 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.