P20A4

P20A4 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P20A4 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 P20A4 Fault Code Meaning :

Ford P20A4 Symptoms :

Ford P20A4 Reasons :

How To Fix Ford P20A4 Trouble Code ?

Which Ford cars have the code P20A4?

  • P20A4 Ford Aerostar
  • P20A4 Ford Bronco
  • P20A4 Ford C-Max
  • P20A4 Ford C-Max Energi
  • P20A4 Ford C-Max Hybrid
  • P20A4 Ford Contour
  • P20A4 Ford Crown Victoria
  • P20A4 Ford EcoSport
  • P20A4 Ford Econoline
  • P20A4 Ford Edge
  • P20A4 Ford Escape
  • P20A4 Ford Escape Hybrid
  • P20A4 Ford Escort
  • P20A4 Ford Everest
  • P20A4 Ford Excursion
  • P20A4 Ford Expedition
  • P20A4 Ford Explorer
  • P20A4 Ford Explorer Sport Trac
  • P20A4 Ford F-150
  • P20A4 Ford F-250
  • P20A4 Ford F-350
  • P20A4 Ford Fiesta
  • P20A4 Ford Flex
  • P20A4 Ford Focus
  • P20A4 Ford Focus Electric
  • P20A4 Ford Freestar
  • P20A4 Ford Freestyle
  • P20A4 Ford Fusion
  • P20A4 Ford Fusion Energi
  • P20A4 Ford Fusion Hybrid
  • P20A4 Ford Fusion Plug-In Hybrid
  • P20A4 Ford GT
  • P20A4 Ford Mustang
  • P20A4 Ford Mustang Mach-E
  • P20A4 Ford Mystique
  • P20A4 Ford Probe
  • P20A4 Ford Ranger
  • P20A4 Ford Taurus
  • P20A4 Ford Taurus X
  • P20A4 Ford Tempo
  • P20A4 Ford Thunderbird
  • P20A4 Ford Transit
  • P20A4 Ford Transit Connect
  • P20A4 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.