P9A77

P9A77 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P9A77 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 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.

Engine starting is disabled and other optional functions may be interrupted until the fault is corrected and the ignition switch is cycled.

Ford P9A77 Fault Code Meaning :

Ford P9A77 Symptoms :

Ford P9A77 Reasons :

How To Fix Ford P9A77 Trouble Code ?

Which Ford cars have the code P9A77?

  • P9A77 Ford Aerostar
  • P9A77 Ford Bronco
  • P9A77 Ford C-Max
  • P9A77 Ford C-Max Energi
  • P9A77 Ford C-Max Hybrid
  • P9A77 Ford Contour
  • P9A77 Ford Crown Victoria
  • P9A77 Ford EcoSport
  • P9A77 Ford Econoline
  • P9A77 Ford Edge
  • P9A77 Ford Escape
  • P9A77 Ford Escape Hybrid
  • P9A77 Ford Escort
  • P9A77 Ford Everest
  • P9A77 Ford Excursion
  • P9A77 Ford Expedition
  • P9A77 Ford Explorer
  • P9A77 Ford Explorer Sport Trac
  • P9A77 Ford F-150
  • P9A77 Ford F-250
  • P9A77 Ford F-350
  • P9A77 Ford Fiesta
  • P9A77 Ford Flex
  • P9A77 Ford Focus
  • P9A77 Ford Focus Electric
  • P9A77 Ford Freestar
  • P9A77 Ford Freestyle
  • P9A77 Ford Fusion
  • P9A77 Ford Fusion Energi
  • P9A77 Ford Fusion Hybrid
  • P9A77 Ford Fusion Plug-In Hybrid
  • P9A77 Ford GT
  • P9A77 Ford Mustang
  • P9A77 Ford Mustang Mach-E
  • P9A77 Ford Mystique
  • P9A77 Ford Probe
  • P9A77 Ford Ranger
  • P9A77 Ford Taurus
  • P9A77 Ford Taurus X
  • P9A77 Ford Tempo
  • P9A77 Ford Thunderbird
  • P9A77 Ford Transit
  • P9A77 Ford Transit Connect
  • P9A77 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.