U3748

U3748 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3748 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.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 U3748 Fault Code Meaning :

Ford U3748 Symptoms :

Ford U3748 Reasons :

How To Fix Ford U3748 Trouble Code ?

Which Ford cars have the code U3748?

  • U3748 Ford Aerostar
  • U3748 Ford Bronco
  • U3748 Ford C-Max
  • U3748 Ford C-Max Energi
  • U3748 Ford C-Max Hybrid
  • U3748 Ford Contour
  • U3748 Ford Crown Victoria
  • U3748 Ford EcoSport
  • U3748 Ford Econoline
  • U3748 Ford Edge
  • U3748 Ford Escape
  • U3748 Ford Escape Hybrid
  • U3748 Ford Escort
  • U3748 Ford Everest
  • U3748 Ford Excursion
  • U3748 Ford Expedition
  • U3748 Ford Explorer
  • U3748 Ford Explorer Sport Trac
  • U3748 Ford F-150
  • U3748 Ford F-250
  • U3748 Ford F-350
  • U3748 Ford Fiesta
  • U3748 Ford Flex
  • U3748 Ford Focus
  • U3748 Ford Focus Electric
  • U3748 Ford Freestar
  • U3748 Ford Freestyle
  • U3748 Ford Fusion
  • U3748 Ford Fusion Energi
  • U3748 Ford Fusion Hybrid
  • U3748 Ford Fusion Plug-In Hybrid
  • U3748 Ford GT
  • U3748 Ford Mustang
  • U3748 Ford Mustang Mach-E
  • U3748 Ford Mystique
  • U3748 Ford Probe
  • U3748 Ford Ranger
  • U3748 Ford Taurus
  • U3748 Ford Taurus X
  • U3748 Ford Tempo
  • U3748 Ford Thunderbird
  • U3748 Ford Transit
  • U3748 Ford Transit Connect
  • U3748 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.