U0666

U0666 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U0666 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 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 U0666 Fault Code Meaning :

Ford U0666 Symptoms :

Ford U0666 Reasons :

How To Fix Ford U0666 Trouble Code ?

Which Ford cars have the code U0666?

  • U0666 Ford Aerostar
  • U0666 Ford Bronco
  • U0666 Ford C-Max
  • U0666 Ford C-Max Energi
  • U0666 Ford C-Max Hybrid
  • U0666 Ford Contour
  • U0666 Ford Crown Victoria
  • U0666 Ford EcoSport
  • U0666 Ford Econoline
  • U0666 Ford Edge
  • U0666 Ford Escape
  • U0666 Ford Escape Hybrid
  • U0666 Ford Escort
  • U0666 Ford Everest
  • U0666 Ford Excursion
  • U0666 Ford Expedition
  • U0666 Ford Explorer
  • U0666 Ford Explorer Sport Trac
  • U0666 Ford F-150
  • U0666 Ford F-250
  • U0666 Ford F-350
  • U0666 Ford Fiesta
  • U0666 Ford Flex
  • U0666 Ford Focus
  • U0666 Ford Focus Electric
  • U0666 Ford Freestar
  • U0666 Ford Freestyle
  • U0666 Ford Fusion
  • U0666 Ford Fusion Energi
  • U0666 Ford Fusion Hybrid
  • U0666 Ford Fusion Plug-In Hybrid
  • U0666 Ford GT
  • U0666 Ford Mustang
  • U0666 Ford Mustang Mach-E
  • U0666 Ford Mystique
  • U0666 Ford Probe
  • U0666 Ford Ranger
  • U0666 Ford Taurus
  • U0666 Ford Taurus X
  • U0666 Ford Tempo
  • U0666 Ford Thunderbird
  • U0666 Ford Transit
  • U0666 Ford Transit Connect
  • U0666 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.