C0540

C0540 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C0540 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 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 C0540 Fault Code Meaning :

Ford C0540 Symptoms :

Ford C0540 Reasons :

How To Fix Ford C0540 Trouble Code ?

Which Ford cars have the code C0540?

  • C0540 Ford Aerostar
  • C0540 Ford Bronco
  • C0540 Ford C-Max
  • C0540 Ford C-Max Energi
  • C0540 Ford C-Max Hybrid
  • C0540 Ford Contour
  • C0540 Ford Crown Victoria
  • C0540 Ford EcoSport
  • C0540 Ford Econoline
  • C0540 Ford Edge
  • C0540 Ford Escape
  • C0540 Ford Escape Hybrid
  • C0540 Ford Escort
  • C0540 Ford Everest
  • C0540 Ford Excursion
  • C0540 Ford Expedition
  • C0540 Ford Explorer
  • C0540 Ford Explorer Sport Trac
  • C0540 Ford F-150
  • C0540 Ford F-250
  • C0540 Ford F-350
  • C0540 Ford Fiesta
  • C0540 Ford Flex
  • C0540 Ford Focus
  • C0540 Ford Focus Electric
  • C0540 Ford Freestar
  • C0540 Ford Freestyle
  • C0540 Ford Fusion
  • C0540 Ford Fusion Energi
  • C0540 Ford Fusion Hybrid
  • C0540 Ford Fusion Plug-In Hybrid
  • C0540 Ford GT
  • C0540 Ford Mustang
  • C0540 Ford Mustang Mach-E
  • C0540 Ford Mystique
  • C0540 Ford Probe
  • C0540 Ford Ranger
  • C0540 Ford Taurus
  • C0540 Ford Taurus X
  • C0540 Ford Tempo
  • C0540 Ford Thunderbird
  • C0540 Ford Transit
  • C0540 Ford Transit Connect
  • C0540 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.