U3139

U3139 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3139 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.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 U3139 Fault Code Meaning :

Ford U3139 Symptoms :

Ford U3139 Reasons :

How To Fix Ford U3139 Trouble Code ?

Which Ford cars have the code U3139?

  • U3139 Ford Aerostar
  • U3139 Ford Bronco
  • U3139 Ford C-Max
  • U3139 Ford C-Max Energi
  • U3139 Ford C-Max Hybrid
  • U3139 Ford Contour
  • U3139 Ford Crown Victoria
  • U3139 Ford EcoSport
  • U3139 Ford Econoline
  • U3139 Ford Edge
  • U3139 Ford Escape
  • U3139 Ford Escape Hybrid
  • U3139 Ford Escort
  • U3139 Ford Everest
  • U3139 Ford Excursion
  • U3139 Ford Expedition
  • U3139 Ford Explorer
  • U3139 Ford Explorer Sport Trac
  • U3139 Ford F-150
  • U3139 Ford F-250
  • U3139 Ford F-350
  • U3139 Ford Fiesta
  • U3139 Ford Flex
  • U3139 Ford Focus
  • U3139 Ford Focus Electric
  • U3139 Ford Freestar
  • U3139 Ford Freestyle
  • U3139 Ford Fusion
  • U3139 Ford Fusion Energi
  • U3139 Ford Fusion Hybrid
  • U3139 Ford Fusion Plug-In Hybrid
  • U3139 Ford GT
  • U3139 Ford Mustang
  • U3139 Ford Mustang Mach-E
  • U3139 Ford Mystique
  • U3139 Ford Probe
  • U3139 Ford Ranger
  • U3139 Ford Taurus
  • U3139 Ford Taurus X
  • U3139 Ford Tempo
  • U3139 Ford Thunderbird
  • U3139 Ford Transit
  • U3139 Ford Transit Connect
  • U3139 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.