C3749

C3749 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3749 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.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 C3749 Fault Code Meaning :

Ford C3749 Symptoms :

Ford C3749 Reasons :

How To Fix Ford C3749 Trouble Code ?

Which Ford cars have the code C3749?

  • C3749 Ford Aerostar
  • C3749 Ford Bronco
  • C3749 Ford C-Max
  • C3749 Ford C-Max Energi
  • C3749 Ford C-Max Hybrid
  • C3749 Ford Contour
  • C3749 Ford Crown Victoria
  • C3749 Ford EcoSport
  • C3749 Ford Econoline
  • C3749 Ford Edge
  • C3749 Ford Escape
  • C3749 Ford Escape Hybrid
  • C3749 Ford Escort
  • C3749 Ford Everest
  • C3749 Ford Excursion
  • C3749 Ford Expedition
  • C3749 Ford Explorer
  • C3749 Ford Explorer Sport Trac
  • C3749 Ford F-150
  • C3749 Ford F-250
  • C3749 Ford F-350
  • C3749 Ford Fiesta
  • C3749 Ford Flex
  • C3749 Ford Focus
  • C3749 Ford Focus Electric
  • C3749 Ford Freestar
  • C3749 Ford Freestyle
  • C3749 Ford Fusion
  • C3749 Ford Fusion Energi
  • C3749 Ford Fusion Hybrid
  • C3749 Ford Fusion Plug-In Hybrid
  • C3749 Ford GT
  • C3749 Ford Mustang
  • C3749 Ford Mustang Mach-E
  • C3749 Ford Mystique
  • C3749 Ford Probe
  • C3749 Ford Ranger
  • C3749 Ford Taurus
  • C3749 Ford Taurus X
  • C3749 Ford Tempo
  • C3749 Ford Thunderbird
  • C3749 Ford Transit
  • C3749 Ford Transit Connect
  • C3749 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.