P3855

P3855 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3855 Diagnosis

The CHM does not suupport PWM type DRLs. The vehicle has a BHM mismatch with the CHM. Replace the CHM with one that is compatible with the BHM.The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.

When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford P3855 Fault Code Meaning :

Ford P3855 Symptoms :

Ford P3855 Reasons :

How To Fix Ford P3855 Trouble Code ?

Which Ford cars have the code P3855?

  • P3855 Ford Aerostar
  • P3855 Ford Bronco
  • P3855 Ford C-Max
  • P3855 Ford C-Max Energi
  • P3855 Ford C-Max Hybrid
  • P3855 Ford Contour
  • P3855 Ford Crown Victoria
  • P3855 Ford EcoSport
  • P3855 Ford Econoline
  • P3855 Ford Edge
  • P3855 Ford Escape
  • P3855 Ford Escape Hybrid
  • P3855 Ford Escort
  • P3855 Ford Everest
  • P3855 Ford Excursion
  • P3855 Ford Expedition
  • P3855 Ford Explorer
  • P3855 Ford Explorer Sport Trac
  • P3855 Ford F-150
  • P3855 Ford F-250
  • P3855 Ford F-350
  • P3855 Ford Fiesta
  • P3855 Ford Flex
  • P3855 Ford Focus
  • P3855 Ford Focus Electric
  • P3855 Ford Freestar
  • P3855 Ford Freestyle
  • P3855 Ford Fusion
  • P3855 Ford Fusion Energi
  • P3855 Ford Fusion Hybrid
  • P3855 Ford Fusion Plug-In Hybrid
  • P3855 Ford GT
  • P3855 Ford Mustang
  • P3855 Ford Mustang Mach-E
  • P3855 Ford Mystique
  • P3855 Ford Probe
  • P3855 Ford Ranger
  • P3855 Ford Taurus
  • P3855 Ford Taurus X
  • P3855 Ford Tempo
  • P3855 Ford Thunderbird
  • P3855 Ford Transit
  • P3855 Ford Transit Connect
  • P3855 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.