U3902

U3902 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3902 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 U3902 Fault Code Meaning :

Ford U3902 Symptoms :

Ford U3902 Reasons :

How To Fix Ford U3902 Trouble Code ?

Which Ford cars have the code U3902?

  • U3902 Ford Aerostar
  • U3902 Ford Bronco
  • U3902 Ford C-Max
  • U3902 Ford C-Max Energi
  • U3902 Ford C-Max Hybrid
  • U3902 Ford Contour
  • U3902 Ford Crown Victoria
  • U3902 Ford EcoSport
  • U3902 Ford Econoline
  • U3902 Ford Edge
  • U3902 Ford Escape
  • U3902 Ford Escape Hybrid
  • U3902 Ford Escort
  • U3902 Ford Everest
  • U3902 Ford Excursion
  • U3902 Ford Expedition
  • U3902 Ford Explorer
  • U3902 Ford Explorer Sport Trac
  • U3902 Ford F-150
  • U3902 Ford F-250
  • U3902 Ford F-350
  • U3902 Ford Fiesta
  • U3902 Ford Flex
  • U3902 Ford Focus
  • U3902 Ford Focus Electric
  • U3902 Ford Freestar
  • U3902 Ford Freestyle
  • U3902 Ford Fusion
  • U3902 Ford Fusion Energi
  • U3902 Ford Fusion Hybrid
  • U3902 Ford Fusion Plug-In Hybrid
  • U3902 Ford GT
  • U3902 Ford Mustang
  • U3902 Ford Mustang Mach-E
  • U3902 Ford Mystique
  • U3902 Ford Probe
  • U3902 Ford Ranger
  • U3902 Ford Taurus
  • U3902 Ford Taurus X
  • U3902 Ford Tempo
  • U3902 Ford Thunderbird
  • U3902 Ford Transit
  • U3902 Ford Transit Connect
  • U3902 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.