C1939

C1939 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C1939 Diagnosis

The fuse in the main PDM powering this circuit may be open. The root cause could be excessive loads on an output, or a short to ground in the VBAT2 supply to the CHM.The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded OFF.

The disconnected pipe malfunction is detected when the ventilator tube from the valve cover to the separator device is disconnected resulting in a pressure below the lower limit.Both of these malfunctions will result in a DTC being set.

Ford C1939 Fault Code Meaning :

Ford C1939 Symptoms :

Ford C1939 Reasons :

How To Fix Ford C1939 Trouble Code ?

Which Ford cars have the code C1939?

  • C1939 Ford Aerostar
  • C1939 Ford Bronco
  • C1939 Ford C-Max
  • C1939 Ford C-Max Energi
  • C1939 Ford C-Max Hybrid
  • C1939 Ford Contour
  • C1939 Ford Crown Victoria
  • C1939 Ford EcoSport
  • C1939 Ford Econoline
  • C1939 Ford Edge
  • C1939 Ford Escape
  • C1939 Ford Escape Hybrid
  • C1939 Ford Escort
  • C1939 Ford Everest
  • C1939 Ford Excursion
  • C1939 Ford Expedition
  • C1939 Ford Explorer
  • C1939 Ford Explorer Sport Trac
  • C1939 Ford F-150
  • C1939 Ford F-250
  • C1939 Ford F-350
  • C1939 Ford Fiesta
  • C1939 Ford Flex
  • C1939 Ford Focus
  • C1939 Ford Focus Electric
  • C1939 Ford Freestar
  • C1939 Ford Freestyle
  • C1939 Ford Fusion
  • C1939 Ford Fusion Energi
  • C1939 Ford Fusion Hybrid
  • C1939 Ford Fusion Plug-In Hybrid
  • C1939 Ford GT
  • C1939 Ford Mustang
  • C1939 Ford Mustang Mach-E
  • C1939 Ford Mystique
  • C1939 Ford Probe
  • C1939 Ford Ranger
  • C1939 Ford Taurus
  • C1939 Ford Taurus X
  • C1939 Ford Tempo
  • C1939 Ford Thunderbird
  • C1939 Ford Transit
  • C1939 Ford Transit Connect
  • C1939 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.