U3937

U3937 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3937 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.

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 U3937 Fault Code Meaning :

Ford U3937 Symptoms :

Ford U3937 Reasons :

How To Fix Ford U3937 Trouble Code ?

Which Ford cars have the code U3937?

  • U3937 Ford Aerostar
  • U3937 Ford Bronco
  • U3937 Ford C-Max
  • U3937 Ford C-Max Energi
  • U3937 Ford C-Max Hybrid
  • U3937 Ford Contour
  • U3937 Ford Crown Victoria
  • U3937 Ford EcoSport
  • U3937 Ford Econoline
  • U3937 Ford Edge
  • U3937 Ford Escape
  • U3937 Ford Escape Hybrid
  • U3937 Ford Escort
  • U3937 Ford Everest
  • U3937 Ford Excursion
  • U3937 Ford Expedition
  • U3937 Ford Explorer
  • U3937 Ford Explorer Sport Trac
  • U3937 Ford F-150
  • U3937 Ford F-250
  • U3937 Ford F-350
  • U3937 Ford Fiesta
  • U3937 Ford Flex
  • U3937 Ford Focus
  • U3937 Ford Focus Electric
  • U3937 Ford Freestar
  • U3937 Ford Freestyle
  • U3937 Ford Fusion
  • U3937 Ford Fusion Energi
  • U3937 Ford Fusion Hybrid
  • U3937 Ford Fusion Plug-In Hybrid
  • U3937 Ford GT
  • U3937 Ford Mustang
  • U3937 Ford Mustang Mach-E
  • U3937 Ford Mystique
  • U3937 Ford Probe
  • U3937 Ford Ranger
  • U3937 Ford Taurus
  • U3937 Ford Taurus X
  • U3937 Ford Tempo
  • U3937 Ford Thunderbird
  • U3937 Ford Transit
  • U3937 Ford Transit Connect
  • U3937 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.