P0684

P0684 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P0684 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.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 P0684 Fault Code Meaning :

Ford P0684 Symptoms :

Ford P0684 Reasons :

How To Fix Ford P0684 Trouble Code ?

Which Ford cars have the code P0684?

  • P0684 Ford Aerostar
  • P0684 Ford Bronco
  • P0684 Ford C-Max
  • P0684 Ford C-Max Energi
  • P0684 Ford C-Max Hybrid
  • P0684 Ford Contour
  • P0684 Ford Crown Victoria
  • P0684 Ford EcoSport
  • P0684 Ford Econoline
  • P0684 Ford Edge
  • P0684 Ford Escape
  • P0684 Ford Escape Hybrid
  • P0684 Ford Escort
  • P0684 Ford Everest
  • P0684 Ford Excursion
  • P0684 Ford Expedition
  • P0684 Ford Explorer
  • P0684 Ford Explorer Sport Trac
  • P0684 Ford F-150
  • P0684 Ford F-250
  • P0684 Ford F-350
  • P0684 Ford Fiesta
  • P0684 Ford Flex
  • P0684 Ford Focus
  • P0684 Ford Focus Electric
  • P0684 Ford Freestar
  • P0684 Ford Freestyle
  • P0684 Ford Fusion
  • P0684 Ford Fusion Energi
  • P0684 Ford Fusion Hybrid
  • P0684 Ford Fusion Plug-In Hybrid
  • P0684 Ford GT
  • P0684 Ford Mustang
  • P0684 Ford Mustang Mach-E
  • P0684 Ford Mystique
  • P0684 Ford Probe
  • P0684 Ford Ranger
  • P0684 Ford Taurus
  • P0684 Ford Taurus X
  • P0684 Ford Tempo
  • P0684 Ford Thunderbird
  • P0684 Ford Transit
  • P0684 Ford Transit Connect
  • P0684 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.