U3804

U3804 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3804 Diagnosis

This fault indicates that the circuit is drawing more current than it is designed to supply, and possibly there is a wiring fault shorting this circuit to ground. The fault remains active until the ignition is turned ON when the fault is no longer present.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 U3804 Fault Code Meaning :

Ford U3804 Symptoms :

Ford U3804 Reasons :

How To Fix Ford U3804 Trouble Code ?

Which Ford cars have the code U3804?

  • U3804 Ford Aerostar
  • U3804 Ford Bronco
  • U3804 Ford C-Max
  • U3804 Ford C-Max Energi
  • U3804 Ford C-Max Hybrid
  • U3804 Ford Contour
  • U3804 Ford Crown Victoria
  • U3804 Ford EcoSport
  • U3804 Ford Econoline
  • U3804 Ford Edge
  • U3804 Ford Escape
  • U3804 Ford Escape Hybrid
  • U3804 Ford Escort
  • U3804 Ford Everest
  • U3804 Ford Excursion
  • U3804 Ford Expedition
  • U3804 Ford Explorer
  • U3804 Ford Explorer Sport Trac
  • U3804 Ford F-150
  • U3804 Ford F-250
  • U3804 Ford F-350
  • U3804 Ford Fiesta
  • U3804 Ford Flex
  • U3804 Ford Focus
  • U3804 Ford Focus Electric
  • U3804 Ford Freestar
  • U3804 Ford Freestyle
  • U3804 Ford Fusion
  • U3804 Ford Fusion Energi
  • U3804 Ford Fusion Hybrid
  • U3804 Ford Fusion Plug-In Hybrid
  • U3804 Ford GT
  • U3804 Ford Mustang
  • U3804 Ford Mustang Mach-E
  • U3804 Ford Mystique
  • U3804 Ford Probe
  • U3804 Ford Ranger
  • U3804 Ford Taurus
  • U3804 Ford Taurus X
  • U3804 Ford Tempo
  • U3804 Ford Thunderbird
  • U3804 Ford Transit
  • U3804 Ford Transit Connect
  • U3804 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.