P3021

P3021 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3021 Diagnosis

The CHM does not suupport PWM type DRLs. The vehicle has a BHM mismatch with the CHM. Replace the CHM with one that is compatible with the BHM.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 P3021 Fault Code Meaning :

Ford P3021 Symptoms :

Ford P3021 Reasons :

How To Fix Ford P3021 Trouble Code ?

Which Ford cars have the code P3021?

  • P3021 Ford Aerostar
  • P3021 Ford Bronco
  • P3021 Ford C-Max
  • P3021 Ford C-Max Energi
  • P3021 Ford C-Max Hybrid
  • P3021 Ford Contour
  • P3021 Ford Crown Victoria
  • P3021 Ford EcoSport
  • P3021 Ford Econoline
  • P3021 Ford Edge
  • P3021 Ford Escape
  • P3021 Ford Escape Hybrid
  • P3021 Ford Escort
  • P3021 Ford Everest
  • P3021 Ford Excursion
  • P3021 Ford Expedition
  • P3021 Ford Explorer
  • P3021 Ford Explorer Sport Trac
  • P3021 Ford F-150
  • P3021 Ford F-250
  • P3021 Ford F-350
  • P3021 Ford Fiesta
  • P3021 Ford Flex
  • P3021 Ford Focus
  • P3021 Ford Focus Electric
  • P3021 Ford Freestar
  • P3021 Ford Freestyle
  • P3021 Ford Fusion
  • P3021 Ford Fusion Energi
  • P3021 Ford Fusion Hybrid
  • P3021 Ford Fusion Plug-In Hybrid
  • P3021 Ford GT
  • P3021 Ford Mustang
  • P3021 Ford Mustang Mach-E
  • P3021 Ford Mystique
  • P3021 Ford Probe
  • P3021 Ford Ranger
  • P3021 Ford Taurus
  • P3021 Ford Taurus X
  • P3021 Ford Tempo
  • P3021 Ford Thunderbird
  • P3021 Ford Transit
  • P3021 Ford Transit Connect
  • P3021 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.