U0639

U0639 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U0639 Diagnosis

The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open circuit fault.The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.

Ford U0639 Fault Code Meaning :

Ford U0639 Symptoms :

Ford U0639 Reasons :

How To Fix Ford U0639 Trouble Code ?

Which Ford cars have the code U0639?

  • U0639 Ford Aerostar
  • U0639 Ford Bronco
  • U0639 Ford C-Max
  • U0639 Ford C-Max Energi
  • U0639 Ford C-Max Hybrid
  • U0639 Ford Contour
  • U0639 Ford Crown Victoria
  • U0639 Ford EcoSport
  • U0639 Ford Econoline
  • U0639 Ford Edge
  • U0639 Ford Escape
  • U0639 Ford Escape Hybrid
  • U0639 Ford Escort
  • U0639 Ford Everest
  • U0639 Ford Excursion
  • U0639 Ford Expedition
  • U0639 Ford Explorer
  • U0639 Ford Explorer Sport Trac
  • U0639 Ford F-150
  • U0639 Ford F-250
  • U0639 Ford F-350
  • U0639 Ford Fiesta
  • U0639 Ford Flex
  • U0639 Ford Focus
  • U0639 Ford Focus Electric
  • U0639 Ford Freestar
  • U0639 Ford Freestyle
  • U0639 Ford Fusion
  • U0639 Ford Fusion Energi
  • U0639 Ford Fusion Hybrid
  • U0639 Ford Fusion Plug-In Hybrid
  • U0639 Ford GT
  • U0639 Ford Mustang
  • U0639 Ford Mustang Mach-E
  • U0639 Ford Mystique
  • U0639 Ford Probe
  • U0639 Ford Ranger
  • U0639 Ford Taurus
  • U0639 Ford Taurus X
  • U0639 Ford Tempo
  • U0639 Ford Thunderbird
  • U0639 Ford Transit
  • U0639 Ford Transit Connect
  • U0639 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.