P3861

P3861 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3861 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 position information for the switch becomes Not Available. Remove the duplicate Smart Switch, then use ServiceLink to verify that the correct Smart Switches are configured for the vehicle.

A comparison of pressures from all sensors is made. The smallest difference between the three is determined and a reference pressure is calculated. The Barometric pressure sensor value is compared to the reference value and if the difference is above the threshold a DTC is reported.

Ford P3861 Fault Code Meaning :

Ford P3861 Symptoms :

Ford P3861 Reasons :

How To Fix Ford P3861 Trouble Code ?

Which Ford cars have the code P3861?

  • P3861 Ford Aerostar
  • P3861 Ford Bronco
  • P3861 Ford C-Max
  • P3861 Ford C-Max Energi
  • P3861 Ford C-Max Hybrid
  • P3861 Ford Contour
  • P3861 Ford Crown Victoria
  • P3861 Ford EcoSport
  • P3861 Ford Econoline
  • P3861 Ford Edge
  • P3861 Ford Escape
  • P3861 Ford Escape Hybrid
  • P3861 Ford Escort
  • P3861 Ford Everest
  • P3861 Ford Excursion
  • P3861 Ford Expedition
  • P3861 Ford Explorer
  • P3861 Ford Explorer Sport Trac
  • P3861 Ford F-150
  • P3861 Ford F-250
  • P3861 Ford F-350
  • P3861 Ford Fiesta
  • P3861 Ford Flex
  • P3861 Ford Focus
  • P3861 Ford Focus Electric
  • P3861 Ford Freestar
  • P3861 Ford Freestyle
  • P3861 Ford Fusion
  • P3861 Ford Fusion Energi
  • P3861 Ford Fusion Hybrid
  • P3861 Ford Fusion Plug-In Hybrid
  • P3861 Ford GT
  • P3861 Ford Mustang
  • P3861 Ford Mustang Mach-E
  • P3861 Ford Mystique
  • P3861 Ford Probe
  • P3861 Ford Ranger
  • P3861 Ford Taurus
  • P3861 Ford Taurus X
  • P3861 Ford Tempo
  • P3861 Ford Thunderbird
  • P3861 Ford Transit
  • P3861 Ford Transit Connect
  • P3861 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.