P42F9

P42F9 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P42F9 Diagnosis

The axle lift 2 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for axle lift 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.

A comparison of pressures from all sensors is made. The smallest difference between the three is determined and a reference pressure is calculated. The Barometric pressure sensor value is compared to the reference value and if the difference is above the threshold a DTC is reported.

Ford P42F9 Fault Code Meaning :

Ford P42F9 Symptoms :

Ford P42F9 Reasons :

How To Fix Ford P42F9 Trouble Code ?

Which Ford cars have the code P42F9?

  • P42F9 Ford Aerostar
  • P42F9 Ford Bronco
  • P42F9 Ford C-Max
  • P42F9 Ford C-Max Energi
  • P42F9 Ford C-Max Hybrid
  • P42F9 Ford Contour
  • P42F9 Ford Crown Victoria
  • P42F9 Ford EcoSport
  • P42F9 Ford Econoline
  • P42F9 Ford Edge
  • P42F9 Ford Escape
  • P42F9 Ford Escape Hybrid
  • P42F9 Ford Escort
  • P42F9 Ford Everest
  • P42F9 Ford Excursion
  • P42F9 Ford Expedition
  • P42F9 Ford Explorer
  • P42F9 Ford Explorer Sport Trac
  • P42F9 Ford F-150
  • P42F9 Ford F-250
  • P42F9 Ford F-350
  • P42F9 Ford Fiesta
  • P42F9 Ford Flex
  • P42F9 Ford Focus
  • P42F9 Ford Focus Electric
  • P42F9 Ford Freestar
  • P42F9 Ford Freestyle
  • P42F9 Ford Fusion
  • P42F9 Ford Fusion Energi
  • P42F9 Ford Fusion Hybrid
  • P42F9 Ford Fusion Plug-In Hybrid
  • P42F9 Ford GT
  • P42F9 Ford Mustang
  • P42F9 Ford Mustang Mach-E
  • P42F9 Ford Mystique
  • P42F9 Ford Probe
  • P42F9 Ford Ranger
  • P42F9 Ford Taurus
  • P42F9 Ford Taurus X
  • P42F9 Ford Tempo
  • P42F9 Ford Thunderbird
  • P42F9 Ford Transit
  • P42F9 Ford Transit Connect
  • P42F9 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.