P0309

P0309 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P0309 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.

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 P0309 Fault Code Meaning :

Ford P0309 Symptoms :

Ford P0309 Reasons :

How To Fix Ford P0309 Trouble Code ?

Which Ford cars have the code P0309?

  • P0309 Ford Aerostar
  • P0309 Ford Bronco
  • P0309 Ford C-Max
  • P0309 Ford C-Max Energi
  • P0309 Ford C-Max Hybrid
  • P0309 Ford Contour
  • P0309 Ford Crown Victoria
  • P0309 Ford EcoSport
  • P0309 Ford Econoline
  • P0309 Ford Edge
  • P0309 Ford Escape
  • P0309 Ford Escape Hybrid
  • P0309 Ford Escort
  • P0309 Ford Everest
  • P0309 Ford Excursion
  • P0309 Ford Expedition
  • P0309 Ford Explorer
  • P0309 Ford Explorer Sport Trac
  • P0309 Ford F-150
  • P0309 Ford F-250
  • P0309 Ford F-350
  • P0309 Ford Fiesta
  • P0309 Ford Flex
  • P0309 Ford Focus
  • P0309 Ford Focus Electric
  • P0309 Ford Freestar
  • P0309 Ford Freestyle
  • P0309 Ford Fusion
  • P0309 Ford Fusion Energi
  • P0309 Ford Fusion Hybrid
  • P0309 Ford Fusion Plug-In Hybrid
  • P0309 Ford GT
  • P0309 Ford Mustang
  • P0309 Ford Mustang Mach-E
  • P0309 Ford Mystique
  • P0309 Ford Probe
  • P0309 Ford Ranger
  • P0309 Ford Taurus
  • P0309 Ford Taurus X
  • P0309 Ford Tempo
  • P0309 Ford Thunderbird
  • P0309 Ford Transit
  • P0309 Ford Transit Connect
  • P0309 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.