P09F4

P09F4 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P09F4 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 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.

When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford P09F4 Fault Code Meaning :

Ford P09F4 Symptoms :

Ford P09F4 Reasons :

How To Fix Ford P09F4 Trouble Code ?

Which Ford cars have the code P09F4?

  • P09F4 Ford Aerostar
  • P09F4 Ford Bronco
  • P09F4 Ford C-Max
  • P09F4 Ford C-Max Energi
  • P09F4 Ford C-Max Hybrid
  • P09F4 Ford Contour
  • P09F4 Ford Crown Victoria
  • P09F4 Ford EcoSport
  • P09F4 Ford Econoline
  • P09F4 Ford Edge
  • P09F4 Ford Escape
  • P09F4 Ford Escape Hybrid
  • P09F4 Ford Escort
  • P09F4 Ford Everest
  • P09F4 Ford Excursion
  • P09F4 Ford Expedition
  • P09F4 Ford Explorer
  • P09F4 Ford Explorer Sport Trac
  • P09F4 Ford F-150
  • P09F4 Ford F-250
  • P09F4 Ford F-350
  • P09F4 Ford Fiesta
  • P09F4 Ford Flex
  • P09F4 Ford Focus
  • P09F4 Ford Focus Electric
  • P09F4 Ford Freestar
  • P09F4 Ford Freestyle
  • P09F4 Ford Fusion
  • P09F4 Ford Fusion Energi
  • P09F4 Ford Fusion Hybrid
  • P09F4 Ford Fusion Plug-In Hybrid
  • P09F4 Ford GT
  • P09F4 Ford Mustang
  • P09F4 Ford Mustang Mach-E
  • P09F4 Ford Mystique
  • P09F4 Ford Probe
  • P09F4 Ford Ranger
  • P09F4 Ford Taurus
  • P09F4 Ford Taurus X
  • P09F4 Ford Tempo
  • P09F4 Ford Thunderbird
  • P09F4 Ford Transit
  • P09F4 Ford Transit Connect
  • P09F4 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.