P0540

P0540 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P0540 Diagnosis

This fault indicates that the circuit is drawing more current than it is designed to supply, and possibly there is a wiring fault shorting this circuit to ground. The fault remains active until the ignition is turned ON when the fault is no longer present.The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded OFF.

The disconnected pipe malfunction is detected when the ventilator tube from the valve cover to the separator device is disconnected resulting in a pressure below the lower limit.Both of these malfunctions will result in a DTC being set.

Ford P0540 Fault Code Meaning :

Ford P0540 Symptoms :

Ford P0540 Reasons :

How To Fix Ford P0540 Trouble Code ?

Which Ford cars have the code P0540?

  • P0540 Ford Aerostar
  • P0540 Ford Bronco
  • P0540 Ford C-Max
  • P0540 Ford C-Max Energi
  • P0540 Ford C-Max Hybrid
  • P0540 Ford Contour
  • P0540 Ford Crown Victoria
  • P0540 Ford EcoSport
  • P0540 Ford Econoline
  • P0540 Ford Edge
  • P0540 Ford Escape
  • P0540 Ford Escape Hybrid
  • P0540 Ford Escort
  • P0540 Ford Everest
  • P0540 Ford Excursion
  • P0540 Ford Expedition
  • P0540 Ford Explorer
  • P0540 Ford Explorer Sport Trac
  • P0540 Ford F-150
  • P0540 Ford F-250
  • P0540 Ford F-350
  • P0540 Ford Fiesta
  • P0540 Ford Flex
  • P0540 Ford Focus
  • P0540 Ford Focus Electric
  • P0540 Ford Freestar
  • P0540 Ford Freestyle
  • P0540 Ford Fusion
  • P0540 Ford Fusion Energi
  • P0540 Ford Fusion Hybrid
  • P0540 Ford Fusion Plug-In Hybrid
  • P0540 Ford GT
  • P0540 Ford Mustang
  • P0540 Ford Mustang Mach-E
  • P0540 Ford Mystique
  • P0540 Ford Probe
  • P0540 Ford Ranger
  • P0540 Ford Taurus
  • P0540 Ford Taurus X
  • P0540 Ford Tempo
  • P0540 Ford Thunderbird
  • P0540 Ford Transit
  • P0540 Ford Transit Connect
  • P0540 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.