C0644

C0644 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C0644 Diagnosis

The fuse in the main PDM powering this circuit may be open. The root cause could be excessive loads on an output, or a short to ground in the VBAT2 supply to the CHM.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 C0644 Fault Code Meaning :

Ford C0644 Symptoms :

Ford C0644 Reasons :

How To Fix Ford C0644 Trouble Code ?

Which Ford cars have the code C0644?

  • C0644 Ford Aerostar
  • C0644 Ford Bronco
  • C0644 Ford C-Max
  • C0644 Ford C-Max Energi
  • C0644 Ford C-Max Hybrid
  • C0644 Ford Contour
  • C0644 Ford Crown Victoria
  • C0644 Ford EcoSport
  • C0644 Ford Econoline
  • C0644 Ford Edge
  • C0644 Ford Escape
  • C0644 Ford Escape Hybrid
  • C0644 Ford Escort
  • C0644 Ford Everest
  • C0644 Ford Excursion
  • C0644 Ford Expedition
  • C0644 Ford Explorer
  • C0644 Ford Explorer Sport Trac
  • C0644 Ford F-150
  • C0644 Ford F-250
  • C0644 Ford F-350
  • C0644 Ford Fiesta
  • C0644 Ford Flex
  • C0644 Ford Focus
  • C0644 Ford Focus Electric
  • C0644 Ford Freestar
  • C0644 Ford Freestyle
  • C0644 Ford Fusion
  • C0644 Ford Fusion Energi
  • C0644 Ford Fusion Hybrid
  • C0644 Ford Fusion Plug-In Hybrid
  • C0644 Ford GT
  • C0644 Ford Mustang
  • C0644 Ford Mustang Mach-E
  • C0644 Ford Mystique
  • C0644 Ford Probe
  • C0644 Ford Ranger
  • C0644 Ford Taurus
  • C0644 Ford Taurus X
  • C0644 Ford Tempo
  • C0644 Ford Thunderbird
  • C0644 Ford Transit
  • C0644 Ford Transit Connect
  • C0644 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.