C1643

C1643 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C1643 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.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.

This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.

Ford C1643 Fault Code Meaning :

Ford C1643 Symptoms :

Ford C1643 Reasons :

How To Fix Ford C1643 Trouble Code ?

Which Ford cars have the code C1643?

  • C1643 Ford Aerostar
  • C1643 Ford Bronco
  • C1643 Ford C-Max
  • C1643 Ford C-Max Energi
  • C1643 Ford C-Max Hybrid
  • C1643 Ford Contour
  • C1643 Ford Crown Victoria
  • C1643 Ford EcoSport
  • C1643 Ford Econoline
  • C1643 Ford Edge
  • C1643 Ford Escape
  • C1643 Ford Escape Hybrid
  • C1643 Ford Escort
  • C1643 Ford Everest
  • C1643 Ford Excursion
  • C1643 Ford Expedition
  • C1643 Ford Explorer
  • C1643 Ford Explorer Sport Trac
  • C1643 Ford F-150
  • C1643 Ford F-250
  • C1643 Ford F-350
  • C1643 Ford Fiesta
  • C1643 Ford Flex
  • C1643 Ford Focus
  • C1643 Ford Focus Electric
  • C1643 Ford Freestar
  • C1643 Ford Freestyle
  • C1643 Ford Fusion
  • C1643 Ford Fusion Energi
  • C1643 Ford Fusion Hybrid
  • C1643 Ford Fusion Plug-In Hybrid
  • C1643 Ford GT
  • C1643 Ford Mustang
  • C1643 Ford Mustang Mach-E
  • C1643 Ford Mystique
  • C1643 Ford Probe
  • C1643 Ford Ranger
  • C1643 Ford Taurus
  • C1643 Ford Taurus X
  • C1643 Ford Tempo
  • C1643 Ford Thunderbird
  • C1643 Ford Transit
  • C1643 Ford Transit Connect
  • C1643 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.