P3684

P3684 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3684 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 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.

The suspension proportioning output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for suspension proportioning air solenoid fault, and for air pressure switch short circuit fault.

Ford P3684 Fault Code Meaning :

Ford P3684 Symptoms :

Ford P3684 Reasons :

How To Fix Ford P3684 Trouble Code ?

Which Ford cars have the code P3684?

  • P3684 Ford Aerostar
  • P3684 Ford Bronco
  • P3684 Ford C-Max
  • P3684 Ford C-Max Energi
  • P3684 Ford C-Max Hybrid
  • P3684 Ford Contour
  • P3684 Ford Crown Victoria
  • P3684 Ford EcoSport
  • P3684 Ford Econoline
  • P3684 Ford Edge
  • P3684 Ford Escape
  • P3684 Ford Escape Hybrid
  • P3684 Ford Escort
  • P3684 Ford Everest
  • P3684 Ford Excursion
  • P3684 Ford Expedition
  • P3684 Ford Explorer
  • P3684 Ford Explorer Sport Trac
  • P3684 Ford F-150
  • P3684 Ford F-250
  • P3684 Ford F-350
  • P3684 Ford Fiesta
  • P3684 Ford Flex
  • P3684 Ford Focus
  • P3684 Ford Focus Electric
  • P3684 Ford Freestar
  • P3684 Ford Freestyle
  • P3684 Ford Fusion
  • P3684 Ford Fusion Energi
  • P3684 Ford Fusion Hybrid
  • P3684 Ford Fusion Plug-In Hybrid
  • P3684 Ford GT
  • P3684 Ford Mustang
  • P3684 Ford Mustang Mach-E
  • P3684 Ford Mystique
  • P3684 Ford Probe
  • P3684 Ford Ranger
  • P3684 Ford Taurus
  • P3684 Ford Taurus X
  • P3684 Ford Tempo
  • P3684 Ford Thunderbird
  • P3684 Ford Transit
  • P3684 Ford Transit Connect
  • P3684 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.