P9D66

P9D66 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P9D66 Diagnosis

The PTO 1 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for PTO 2 air solenoid fault, and for air pressure switch short 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 P9D66 Fault Code Meaning :

Ford P9D66 Symptoms :

Ford P9D66 Reasons :

How To Fix Ford P9D66 Trouble Code ?

Which Ford cars have the code P9D66?

  • P9D66 Ford Aerostar
  • P9D66 Ford Bronco
  • P9D66 Ford C-Max
  • P9D66 Ford C-Max Energi
  • P9D66 Ford C-Max Hybrid
  • P9D66 Ford Contour
  • P9D66 Ford Crown Victoria
  • P9D66 Ford EcoSport
  • P9D66 Ford Econoline
  • P9D66 Ford Edge
  • P9D66 Ford Escape
  • P9D66 Ford Escape Hybrid
  • P9D66 Ford Escort
  • P9D66 Ford Everest
  • P9D66 Ford Excursion
  • P9D66 Ford Expedition
  • P9D66 Ford Explorer
  • P9D66 Ford Explorer Sport Trac
  • P9D66 Ford F-150
  • P9D66 Ford F-250
  • P9D66 Ford F-350
  • P9D66 Ford Fiesta
  • P9D66 Ford Flex
  • P9D66 Ford Focus
  • P9D66 Ford Focus Electric
  • P9D66 Ford Freestar
  • P9D66 Ford Freestyle
  • P9D66 Ford Fusion
  • P9D66 Ford Fusion Energi
  • P9D66 Ford Fusion Hybrid
  • P9D66 Ford Fusion Plug-In Hybrid
  • P9D66 Ford GT
  • P9D66 Ford Mustang
  • P9D66 Ford Mustang Mach-E
  • P9D66 Ford Mystique
  • P9D66 Ford Probe
  • P9D66 Ford Ranger
  • P9D66 Ford Taurus
  • P9D66 Ford Taurus X
  • P9D66 Ford Tempo
  • P9D66 Ford Thunderbird
  • P9D66 Ford Transit
  • P9D66 Ford Transit Connect
  • P9D66 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.