U0643

U0643 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U0643 Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. 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 U0643 Fault Code Meaning :

Ford U0643 Symptoms :

Ford U0643 Reasons :

How To Fix Ford U0643 Trouble Code ?

Which Ford cars have the code U0643?

  • U0643 Ford Aerostar
  • U0643 Ford Bronco
  • U0643 Ford C-Max
  • U0643 Ford C-Max Energi
  • U0643 Ford C-Max Hybrid
  • U0643 Ford Contour
  • U0643 Ford Crown Victoria
  • U0643 Ford EcoSport
  • U0643 Ford Econoline
  • U0643 Ford Edge
  • U0643 Ford Escape
  • U0643 Ford Escape Hybrid
  • U0643 Ford Escort
  • U0643 Ford Everest
  • U0643 Ford Excursion
  • U0643 Ford Expedition
  • U0643 Ford Explorer
  • U0643 Ford Explorer Sport Trac
  • U0643 Ford F-150
  • U0643 Ford F-250
  • U0643 Ford F-350
  • U0643 Ford Fiesta
  • U0643 Ford Flex
  • U0643 Ford Focus
  • U0643 Ford Focus Electric
  • U0643 Ford Freestar
  • U0643 Ford Freestyle
  • U0643 Ford Fusion
  • U0643 Ford Fusion Energi
  • U0643 Ford Fusion Hybrid
  • U0643 Ford Fusion Plug-In Hybrid
  • U0643 Ford GT
  • U0643 Ford Mustang
  • U0643 Ford Mustang Mach-E
  • U0643 Ford Mystique
  • U0643 Ford Probe
  • U0643 Ford Ranger
  • U0643 Ford Taurus
  • U0643 Ford Taurus X
  • U0643 Ford Tempo
  • U0643 Ford Thunderbird
  • U0643 Ford Transit
  • U0643 Ford Transit Connect
  • U0643 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.