U3679

U3679 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3679 Diagnosis

The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.The ICU reads the wiper switch position and sends the status of the switch to the BHM. This fault becomes active when the ICU reads that both LO speed and HI speed are active at the same time.

The BHM measures the current on this circuit when the headlamp output is commanded ON. This fault indicates that the left high beam headlamp circuit is drawing more current than it is designed to supply and possibly there is a wiring fault shorting this circuit to ground.

Ford U3679 Fault Code Meaning :

Ford U3679 Symptoms :

Ford U3679 Reasons :

How To Fix Ford U3679 Trouble Code ?

Which Ford cars have the code U3679?

  • U3679 Ford Aerostar
  • U3679 Ford Bronco
  • U3679 Ford C-Max
  • U3679 Ford C-Max Energi
  • U3679 Ford C-Max Hybrid
  • U3679 Ford Contour
  • U3679 Ford Crown Victoria
  • U3679 Ford EcoSport
  • U3679 Ford Econoline
  • U3679 Ford Edge
  • U3679 Ford Escape
  • U3679 Ford Escape Hybrid
  • U3679 Ford Escort
  • U3679 Ford Everest
  • U3679 Ford Excursion
  • U3679 Ford Expedition
  • U3679 Ford Explorer
  • U3679 Ford Explorer Sport Trac
  • U3679 Ford F-150
  • U3679 Ford F-250
  • U3679 Ford F-350
  • U3679 Ford Fiesta
  • U3679 Ford Flex
  • U3679 Ford Focus
  • U3679 Ford Focus Electric
  • U3679 Ford Freestar
  • U3679 Ford Freestyle
  • U3679 Ford Fusion
  • U3679 Ford Fusion Energi
  • U3679 Ford Fusion Hybrid
  • U3679 Ford Fusion Plug-In Hybrid
  • U3679 Ford GT
  • U3679 Ford Mustang
  • U3679 Ford Mustang Mach-E
  • U3679 Ford Mystique
  • U3679 Ford Probe
  • U3679 Ford Ranger
  • U3679 Ford Taurus
  • U3679 Ford Taurus X
  • U3679 Ford Tempo
  • U3679 Ford Thunderbird
  • U3679 Ford Transit
  • U3679 Ford Transit Connect
  • U3679 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.