C0439

C0439 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C0439 Diagnosis

The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open circuit fault.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 C0439 Fault Code Meaning :

Ford C0439 Symptoms :

Ford C0439 Reasons :

How To Fix Ford C0439 Trouble Code ?

Which Ford cars have the code C0439?

  • C0439 Ford Aerostar
  • C0439 Ford Bronco
  • C0439 Ford C-Max
  • C0439 Ford C-Max Energi
  • C0439 Ford C-Max Hybrid
  • C0439 Ford Contour
  • C0439 Ford Crown Victoria
  • C0439 Ford EcoSport
  • C0439 Ford Econoline
  • C0439 Ford Edge
  • C0439 Ford Escape
  • C0439 Ford Escape Hybrid
  • C0439 Ford Escort
  • C0439 Ford Everest
  • C0439 Ford Excursion
  • C0439 Ford Expedition
  • C0439 Ford Explorer
  • C0439 Ford Explorer Sport Trac
  • C0439 Ford F-150
  • C0439 Ford F-250
  • C0439 Ford F-350
  • C0439 Ford Fiesta
  • C0439 Ford Flex
  • C0439 Ford Focus
  • C0439 Ford Focus Electric
  • C0439 Ford Freestar
  • C0439 Ford Freestyle
  • C0439 Ford Fusion
  • C0439 Ford Fusion Energi
  • C0439 Ford Fusion Hybrid
  • C0439 Ford Fusion Plug-In Hybrid
  • C0439 Ford GT
  • C0439 Ford Mustang
  • C0439 Ford Mustang Mach-E
  • C0439 Ford Mystique
  • C0439 Ford Probe
  • C0439 Ford Ranger
  • C0439 Ford Taurus
  • C0439 Ford Taurus X
  • C0439 Ford Tempo
  • C0439 Ford Thunderbird
  • C0439 Ford Transit
  • C0439 Ford Transit Connect
  • C0439 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.