P0686

P0686 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P0686 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 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 P0686 Fault Code Meaning :

Ford P0686 Symptoms :

Ford P0686 Reasons :

How To Fix Ford P0686 Trouble Code ?

Which Ford cars have the code P0686?

  • P0686 Ford Aerostar
  • P0686 Ford Bronco
  • P0686 Ford C-Max
  • P0686 Ford C-Max Energi
  • P0686 Ford C-Max Hybrid
  • P0686 Ford Contour
  • P0686 Ford Crown Victoria
  • P0686 Ford EcoSport
  • P0686 Ford Econoline
  • P0686 Ford Edge
  • P0686 Ford Escape
  • P0686 Ford Escape Hybrid
  • P0686 Ford Escort
  • P0686 Ford Everest
  • P0686 Ford Excursion
  • P0686 Ford Expedition
  • P0686 Ford Explorer
  • P0686 Ford Explorer Sport Trac
  • P0686 Ford F-150
  • P0686 Ford F-250
  • P0686 Ford F-350
  • P0686 Ford Fiesta
  • P0686 Ford Flex
  • P0686 Ford Focus
  • P0686 Ford Focus Electric
  • P0686 Ford Freestar
  • P0686 Ford Freestyle
  • P0686 Ford Fusion
  • P0686 Ford Fusion Energi
  • P0686 Ford Fusion Hybrid
  • P0686 Ford Fusion Plug-In Hybrid
  • P0686 Ford GT
  • P0686 Ford Mustang
  • P0686 Ford Mustang Mach-E
  • P0686 Ford Mystique
  • P0686 Ford Probe
  • P0686 Ford Ranger
  • P0686 Ford Taurus
  • P0686 Ford Taurus X
  • P0686 Ford Tempo
  • P0686 Ford Thunderbird
  • P0686 Ford Transit
  • P0686 Ford Transit Connect
  • P0686 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.