P21A2

P21A2 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P21A2 Diagnosis

The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open circuit fault.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 P21A2 Fault Code Meaning :

Ford P21A2 Symptoms :

Ford P21A2 Reasons :

How To Fix Ford P21A2 Trouble Code ?

Which Ford cars have the code P21A2?

  • P21A2 Ford Aerostar
  • P21A2 Ford Bronco
  • P21A2 Ford C-Max
  • P21A2 Ford C-Max Energi
  • P21A2 Ford C-Max Hybrid
  • P21A2 Ford Contour
  • P21A2 Ford Crown Victoria
  • P21A2 Ford EcoSport
  • P21A2 Ford Econoline
  • P21A2 Ford Edge
  • P21A2 Ford Escape
  • P21A2 Ford Escape Hybrid
  • P21A2 Ford Escort
  • P21A2 Ford Everest
  • P21A2 Ford Excursion
  • P21A2 Ford Expedition
  • P21A2 Ford Explorer
  • P21A2 Ford Explorer Sport Trac
  • P21A2 Ford F-150
  • P21A2 Ford F-250
  • P21A2 Ford F-350
  • P21A2 Ford Fiesta
  • P21A2 Ford Flex
  • P21A2 Ford Focus
  • P21A2 Ford Focus Electric
  • P21A2 Ford Freestar
  • P21A2 Ford Freestyle
  • P21A2 Ford Fusion
  • P21A2 Ford Fusion Energi
  • P21A2 Ford Fusion Hybrid
  • P21A2 Ford Fusion Plug-In Hybrid
  • P21A2 Ford GT
  • P21A2 Ford Mustang
  • P21A2 Ford Mustang Mach-E
  • P21A2 Ford Mystique
  • P21A2 Ford Probe
  • P21A2 Ford Ranger
  • P21A2 Ford Taurus
  • P21A2 Ford Taurus X
  • P21A2 Ford Tempo
  • P21A2 Ford Thunderbird
  • P21A2 Ford Transit
  • P21A2 Ford Transit Connect
  • P21A2 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.