B3943

B3943 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3943 Diagnosis

The CHM does not suupport PWM type DRLs. The vehicle has a BHM mismatch with the CHM. Replace the CHM with one that is compatible with the BHM.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 B3943 Fault Code Meaning :

Ford B3943 Symptoms :

Ford B3943 Reasons :

How To Fix Ford B3943 Trouble Code ?

Which Ford cars have the code B3943?

  • B3943 Ford Aerostar
  • B3943 Ford Bronco
  • B3943 Ford C-Max
  • B3943 Ford C-Max Energi
  • B3943 Ford C-Max Hybrid
  • B3943 Ford Contour
  • B3943 Ford Crown Victoria
  • B3943 Ford EcoSport
  • B3943 Ford Econoline
  • B3943 Ford Edge
  • B3943 Ford Escape
  • B3943 Ford Escape Hybrid
  • B3943 Ford Escort
  • B3943 Ford Everest
  • B3943 Ford Excursion
  • B3943 Ford Expedition
  • B3943 Ford Explorer
  • B3943 Ford Explorer Sport Trac
  • B3943 Ford F-150
  • B3943 Ford F-250
  • B3943 Ford F-350
  • B3943 Ford Fiesta
  • B3943 Ford Flex
  • B3943 Ford Focus
  • B3943 Ford Focus Electric
  • B3943 Ford Freestar
  • B3943 Ford Freestyle
  • B3943 Ford Fusion
  • B3943 Ford Fusion Energi
  • B3943 Ford Fusion Hybrid
  • B3943 Ford Fusion Plug-In Hybrid
  • B3943 Ford GT
  • B3943 Ford Mustang
  • B3943 Ford Mustang Mach-E
  • B3943 Ford Mystique
  • B3943 Ford Probe
  • B3943 Ford Ranger
  • B3943 Ford Taurus
  • B3943 Ford Taurus X
  • B3943 Ford Tempo
  • B3943 Ford Thunderbird
  • B3943 Ford Transit
  • B3943 Ford Transit Connect
  • B3943 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.