C3643

C3643 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3643 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 FF.

The BHM drives the 5 cab overhead clearance and ID lamps from connector B5 pin C on circuit 46. All other marker and tail lamps are driven from BHM connector B1,K on circuit 23. This circuit connects to the CHM as an input at connector J3,P.

Ford C3643 Fault Code Meaning :

Ford C3643 Symptoms :

Ford C3643 Reasons :

How To Fix Ford C3643 Trouble Code ?

Which Ford cars have the code C3643?

  • C3643 Ford Aerostar
  • C3643 Ford Bronco
  • C3643 Ford C-Max
  • C3643 Ford C-Max Energi
  • C3643 Ford C-Max Hybrid
  • C3643 Ford Contour
  • C3643 Ford Crown Victoria
  • C3643 Ford EcoSport
  • C3643 Ford Econoline
  • C3643 Ford Edge
  • C3643 Ford Escape
  • C3643 Ford Escape Hybrid
  • C3643 Ford Escort
  • C3643 Ford Everest
  • C3643 Ford Excursion
  • C3643 Ford Expedition
  • C3643 Ford Explorer
  • C3643 Ford Explorer Sport Trac
  • C3643 Ford F-150
  • C3643 Ford F-250
  • C3643 Ford F-350
  • C3643 Ford Fiesta
  • C3643 Ford Flex
  • C3643 Ford Focus
  • C3643 Ford Focus Electric
  • C3643 Ford Freestar
  • C3643 Ford Freestyle
  • C3643 Ford Fusion
  • C3643 Ford Fusion Energi
  • C3643 Ford Fusion Hybrid
  • C3643 Ford Fusion Plug-In Hybrid
  • C3643 Ford GT
  • C3643 Ford Mustang
  • C3643 Ford Mustang Mach-E
  • C3643 Ford Mystique
  • C3643 Ford Probe
  • C3643 Ford Ranger
  • C3643 Ford Taurus
  • C3643 Ford Taurus X
  • C3643 Ford Tempo
  • C3643 Ford Thunderbird
  • C3643 Ford Transit
  • C3643 Ford Transit Connect
  • C3643 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.