P1939

P1939 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P1939 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.The wiper switch is in the OFF position and the BHM park input from the wiper motor is not in park position. Troubleshoot for a wiper motor park switch circuit fault.

When the engine is in idle or in low engine speed and torque condition, the differential pressure over the DPF is expected to be close to zero. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford P1939 Fault Code Meaning :

Ford P1939 Symptoms :

Ford P1939 Reasons :

How To Fix Ford P1939 Trouble Code ?

Which Ford cars have the code P1939?

  • P1939 Ford Aerostar
  • P1939 Ford Bronco
  • P1939 Ford C-Max
  • P1939 Ford C-Max Energi
  • P1939 Ford C-Max Hybrid
  • P1939 Ford Contour
  • P1939 Ford Crown Victoria
  • P1939 Ford EcoSport
  • P1939 Ford Econoline
  • P1939 Ford Edge
  • P1939 Ford Escape
  • P1939 Ford Escape Hybrid
  • P1939 Ford Escort
  • P1939 Ford Everest
  • P1939 Ford Excursion
  • P1939 Ford Expedition
  • P1939 Ford Explorer
  • P1939 Ford Explorer Sport Trac
  • P1939 Ford F-150
  • P1939 Ford F-250
  • P1939 Ford F-350
  • P1939 Ford Fiesta
  • P1939 Ford Flex
  • P1939 Ford Focus
  • P1939 Ford Focus Electric
  • P1939 Ford Freestar
  • P1939 Ford Freestyle
  • P1939 Ford Fusion
  • P1939 Ford Fusion Energi
  • P1939 Ford Fusion Hybrid
  • P1939 Ford Fusion Plug-In Hybrid
  • P1939 Ford GT
  • P1939 Ford Mustang
  • P1939 Ford Mustang Mach-E
  • P1939 Ford Mystique
  • P1939 Ford Probe
  • P1939 Ford Ranger
  • P1939 Ford Taurus
  • P1939 Ford Taurus X
  • P1939 Ford Tempo
  • P1939 Ford Thunderbird
  • P1939 Ford Transit
  • P1939 Ford Transit Connect
  • P1939 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.