P66A9

P66A9 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P66A9 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 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 P66A9 Fault Code Meaning :

Ford P66A9 Symptoms :

Ford P66A9 Reasons :

How To Fix Ford P66A9 Trouble Code ?

Which Ford cars have the code P66A9?

  • P66A9 Ford Aerostar
  • P66A9 Ford Bronco
  • P66A9 Ford C-Max
  • P66A9 Ford C-Max Energi
  • P66A9 Ford C-Max Hybrid
  • P66A9 Ford Contour
  • P66A9 Ford Crown Victoria
  • P66A9 Ford EcoSport
  • P66A9 Ford Econoline
  • P66A9 Ford Edge
  • P66A9 Ford Escape
  • P66A9 Ford Escape Hybrid
  • P66A9 Ford Escort
  • P66A9 Ford Everest
  • P66A9 Ford Excursion
  • P66A9 Ford Expedition
  • P66A9 Ford Explorer
  • P66A9 Ford Explorer Sport Trac
  • P66A9 Ford F-150
  • P66A9 Ford F-250
  • P66A9 Ford F-350
  • P66A9 Ford Fiesta
  • P66A9 Ford Flex
  • P66A9 Ford Focus
  • P66A9 Ford Focus Electric
  • P66A9 Ford Freestar
  • P66A9 Ford Freestyle
  • P66A9 Ford Fusion
  • P66A9 Ford Fusion Energi
  • P66A9 Ford Fusion Hybrid
  • P66A9 Ford Fusion Plug-In Hybrid
  • P66A9 Ford GT
  • P66A9 Ford Mustang
  • P66A9 Ford Mustang Mach-E
  • P66A9 Ford Mystique
  • P66A9 Ford Probe
  • P66A9 Ford Ranger
  • P66A9 Ford Taurus
  • P66A9 Ford Taurus X
  • P66A9 Ford Tempo
  • P66A9 Ford Thunderbird
  • P66A9 Ford Transit
  • P66A9 Ford Transit Connect
  • P66A9 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.