P8D40

P8D40 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P8D40 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.

The suspension proportioning output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for suspension proportioning air solenoid fault, and for air pressure switch short circuit fault.

Ford P8D40 Fault Code Meaning :

Ford P8D40 Symptoms :

Ford P8D40 Reasons :

How To Fix Ford P8D40 Trouble Code ?

Which Ford cars have the code P8D40?

  • P8D40 Ford Aerostar
  • P8D40 Ford Bronco
  • P8D40 Ford C-Max
  • P8D40 Ford C-Max Energi
  • P8D40 Ford C-Max Hybrid
  • P8D40 Ford Contour
  • P8D40 Ford Crown Victoria
  • P8D40 Ford EcoSport
  • P8D40 Ford Econoline
  • P8D40 Ford Edge
  • P8D40 Ford Escape
  • P8D40 Ford Escape Hybrid
  • P8D40 Ford Escort
  • P8D40 Ford Everest
  • P8D40 Ford Excursion
  • P8D40 Ford Expedition
  • P8D40 Ford Explorer
  • P8D40 Ford Explorer Sport Trac
  • P8D40 Ford F-150
  • P8D40 Ford F-250
  • P8D40 Ford F-350
  • P8D40 Ford Fiesta
  • P8D40 Ford Flex
  • P8D40 Ford Focus
  • P8D40 Ford Focus Electric
  • P8D40 Ford Freestar
  • P8D40 Ford Freestyle
  • P8D40 Ford Fusion
  • P8D40 Ford Fusion Energi
  • P8D40 Ford Fusion Hybrid
  • P8D40 Ford Fusion Plug-In Hybrid
  • P8D40 Ford GT
  • P8D40 Ford Mustang
  • P8D40 Ford Mustang Mach-E
  • P8D40 Ford Mystique
  • P8D40 Ford Probe
  • P8D40 Ford Ranger
  • P8D40 Ford Taurus
  • P8D40 Ford Taurus X
  • P8D40 Ford Tempo
  • P8D40 Ford Thunderbird
  • P8D40 Ford Transit
  • P8D40 Ford Transit Connect
  • P8D40 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.