U1684

U1684 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U1684 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 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 U1684 Fault Code Meaning :

Ford U1684 Symptoms :

Ford U1684 Reasons :

How To Fix Ford U1684 Trouble Code ?

Which Ford cars have the code U1684?

  • U1684 Ford Aerostar
  • U1684 Ford Bronco
  • U1684 Ford C-Max
  • U1684 Ford C-Max Energi
  • U1684 Ford C-Max Hybrid
  • U1684 Ford Contour
  • U1684 Ford Crown Victoria
  • U1684 Ford EcoSport
  • U1684 Ford Econoline
  • U1684 Ford Edge
  • U1684 Ford Escape
  • U1684 Ford Escape Hybrid
  • U1684 Ford Escort
  • U1684 Ford Everest
  • U1684 Ford Excursion
  • U1684 Ford Expedition
  • U1684 Ford Explorer
  • U1684 Ford Explorer Sport Trac
  • U1684 Ford F-150
  • U1684 Ford F-250
  • U1684 Ford F-350
  • U1684 Ford Fiesta
  • U1684 Ford Flex
  • U1684 Ford Focus
  • U1684 Ford Focus Electric
  • U1684 Ford Freestar
  • U1684 Ford Freestyle
  • U1684 Ford Fusion
  • U1684 Ford Fusion Energi
  • U1684 Ford Fusion Hybrid
  • U1684 Ford Fusion Plug-In Hybrid
  • U1684 Ford GT
  • U1684 Ford Mustang
  • U1684 Ford Mustang Mach-E
  • U1684 Ford Mystique
  • U1684 Ford Probe
  • U1684 Ford Ranger
  • U1684 Ford Taurus
  • U1684 Ford Taurus X
  • U1684 Ford Tempo
  • U1684 Ford Thunderbird
  • U1684 Ford Transit
  • U1684 Ford Transit Connect
  • U1684 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.