P40B9

P40B9 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P40B9 Diagnosis

The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.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.

Engine starting is disabled and other optional functions may be interrupted until the fault is corrected and the ignition switch is cycled.

Ford P40B9 Fault Code Meaning :

Ford P40B9 Symptoms :

Ford P40B9 Reasons :

How To Fix Ford P40B9 Trouble Code ?

Which Ford cars have the code P40B9?

  • P40B9 Ford Aerostar
  • P40B9 Ford Bronco
  • P40B9 Ford C-Max
  • P40B9 Ford C-Max Energi
  • P40B9 Ford C-Max Hybrid
  • P40B9 Ford Contour
  • P40B9 Ford Crown Victoria
  • P40B9 Ford EcoSport
  • P40B9 Ford Econoline
  • P40B9 Ford Edge
  • P40B9 Ford Escape
  • P40B9 Ford Escape Hybrid
  • P40B9 Ford Escort
  • P40B9 Ford Everest
  • P40B9 Ford Excursion
  • P40B9 Ford Expedition
  • P40B9 Ford Explorer
  • P40B9 Ford Explorer Sport Trac
  • P40B9 Ford F-150
  • P40B9 Ford F-250
  • P40B9 Ford F-350
  • P40B9 Ford Fiesta
  • P40B9 Ford Flex
  • P40B9 Ford Focus
  • P40B9 Ford Focus Electric
  • P40B9 Ford Freestar
  • P40B9 Ford Freestyle
  • P40B9 Ford Fusion
  • P40B9 Ford Fusion Energi
  • P40B9 Ford Fusion Hybrid
  • P40B9 Ford Fusion Plug-In Hybrid
  • P40B9 Ford GT
  • P40B9 Ford Mustang
  • P40B9 Ford Mustang Mach-E
  • P40B9 Ford Mystique
  • P40B9 Ford Probe
  • P40B9 Ford Ranger
  • P40B9 Ford Taurus
  • P40B9 Ford Taurus X
  • P40B9 Ford Tempo
  • P40B9 Ford Thunderbird
  • P40B9 Ford Transit
  • P40B9 Ford Transit Connect
  • P40B9 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.