P6D21

P6D21 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P6D21 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.

A comparison of pressures from all sensors is made. The smallest difference between the three is determined and a reference pressure is calculated. The Barometric pressure sensor value is compared to the reference value and if the difference is above the threshold a DTC is reported.

Ford P6D21 Fault Code Meaning :

Ford P6D21 Symptoms :

Ford P6D21 Reasons :

How To Fix Ford P6D21 Trouble Code ?

Which Ford cars have the code P6D21?

  • P6D21 Ford Aerostar
  • P6D21 Ford Bronco
  • P6D21 Ford C-Max
  • P6D21 Ford C-Max Energi
  • P6D21 Ford C-Max Hybrid
  • P6D21 Ford Contour
  • P6D21 Ford Crown Victoria
  • P6D21 Ford EcoSport
  • P6D21 Ford Econoline
  • P6D21 Ford Edge
  • P6D21 Ford Escape
  • P6D21 Ford Escape Hybrid
  • P6D21 Ford Escort
  • P6D21 Ford Everest
  • P6D21 Ford Excursion
  • P6D21 Ford Expedition
  • P6D21 Ford Explorer
  • P6D21 Ford Explorer Sport Trac
  • P6D21 Ford F-150
  • P6D21 Ford F-250
  • P6D21 Ford F-350
  • P6D21 Ford Fiesta
  • P6D21 Ford Flex
  • P6D21 Ford Focus
  • P6D21 Ford Focus Electric
  • P6D21 Ford Freestar
  • P6D21 Ford Freestyle
  • P6D21 Ford Fusion
  • P6D21 Ford Fusion Energi
  • P6D21 Ford Fusion Hybrid
  • P6D21 Ford Fusion Plug-In Hybrid
  • P6D21 Ford GT
  • P6D21 Ford Mustang
  • P6D21 Ford Mustang Mach-E
  • P6D21 Ford Mystique
  • P6D21 Ford Probe
  • P6D21 Ford Ranger
  • P6D21 Ford Taurus
  • P6D21 Ford Taurus X
  • P6D21 Ford Tempo
  • P6D21 Ford Thunderbird
  • P6D21 Ford Transit
  • P6D21 Ford Transit Connect
  • P6D21 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.