P1644

P1644 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P1644 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.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

The BHM measures the current on this circuit when the starter output is commanded ON. This fault indicates the magnetic switch or the wiring between the BHM and the magnetic switch is open circuit.

Ford P1644 Fault Code Meaning :

Ford P1644 Symptoms :

Ford P1644 Reasons :

How To Fix Ford P1644 Trouble Code ?

Which Ford cars have the code P1644?

  • P1644 Ford Aerostar
  • P1644 Ford Bronco
  • P1644 Ford C-Max
  • P1644 Ford C-Max Energi
  • P1644 Ford C-Max Hybrid
  • P1644 Ford Contour
  • P1644 Ford Crown Victoria
  • P1644 Ford EcoSport
  • P1644 Ford Econoline
  • P1644 Ford Edge
  • P1644 Ford Escape
  • P1644 Ford Escape Hybrid
  • P1644 Ford Escort
  • P1644 Ford Everest
  • P1644 Ford Excursion
  • P1644 Ford Expedition
  • P1644 Ford Explorer
  • P1644 Ford Explorer Sport Trac
  • P1644 Ford F-150
  • P1644 Ford F-250
  • P1644 Ford F-350
  • P1644 Ford Fiesta
  • P1644 Ford Flex
  • P1644 Ford Focus
  • P1644 Ford Focus Electric
  • P1644 Ford Freestar
  • P1644 Ford Freestyle
  • P1644 Ford Fusion
  • P1644 Ford Fusion Energi
  • P1644 Ford Fusion Hybrid
  • P1644 Ford Fusion Plug-In Hybrid
  • P1644 Ford GT
  • P1644 Ford Mustang
  • P1644 Ford Mustang Mach-E
  • P1644 Ford Mystique
  • P1644 Ford Probe
  • P1644 Ford Ranger
  • P1644 Ford Taurus
  • P1644 Ford Taurus X
  • P1644 Ford Tempo
  • P1644 Ford Thunderbird
  • P1644 Ford Transit
  • P1644 Ford Transit Connect
  • P1644 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.