P9D40

P9D40 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P9D40 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

The BHM measures the current on this circuit when the starter output is commanded ON. This fault indicates the magnetic switch or the wiring between the BHM and the magnetic switch is open circuit.

Ford P9D40 Fault Code Meaning :

Ford P9D40 Symptoms :

Ford P9D40 Reasons :

How To Fix Ford P9D40 Trouble Code ?

Which Ford cars have the code P9D40?

  • P9D40 Ford Aerostar
  • P9D40 Ford Bronco
  • P9D40 Ford C-Max
  • P9D40 Ford C-Max Energi
  • P9D40 Ford C-Max Hybrid
  • P9D40 Ford Contour
  • P9D40 Ford Crown Victoria
  • P9D40 Ford EcoSport
  • P9D40 Ford Econoline
  • P9D40 Ford Edge
  • P9D40 Ford Escape
  • P9D40 Ford Escape Hybrid
  • P9D40 Ford Escort
  • P9D40 Ford Everest
  • P9D40 Ford Excursion
  • P9D40 Ford Expedition
  • P9D40 Ford Explorer
  • P9D40 Ford Explorer Sport Trac
  • P9D40 Ford F-150
  • P9D40 Ford F-250
  • P9D40 Ford F-350
  • P9D40 Ford Fiesta
  • P9D40 Ford Flex
  • P9D40 Ford Focus
  • P9D40 Ford Focus Electric
  • P9D40 Ford Freestar
  • P9D40 Ford Freestyle
  • P9D40 Ford Fusion
  • P9D40 Ford Fusion Energi
  • P9D40 Ford Fusion Hybrid
  • P9D40 Ford Fusion Plug-In Hybrid
  • P9D40 Ford GT
  • P9D40 Ford Mustang
  • P9D40 Ford Mustang Mach-E
  • P9D40 Ford Mystique
  • P9D40 Ford Probe
  • P9D40 Ford Ranger
  • P9D40 Ford Taurus
  • P9D40 Ford Taurus X
  • P9D40 Ford Tempo
  • P9D40 Ford Thunderbird
  • P9D40 Ford Transit
  • P9D40 Ford Transit Connect
  • P9D40 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.