P21A3

P21A3 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P21A3 Diagnosis

The axle lift 2 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for axle lift 2 air solenoid fault, and for air pressure switch short circuit fault.The wiper switch is in the OFF position and the BHM park input from the wiper motor is not in park position. Troubleshoot for a wiper motor park switch circuit fault.

When the engine is in idle or in low engine speed and torque condition, the differential pressure over the DPF is expected to be close to zero. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford P21A3 Fault Code Meaning :

Ford P21A3 Symptoms :

Ford P21A3 Reasons :

How To Fix Ford P21A3 Trouble Code ?

Which Ford cars have the code P21A3?

  • P21A3 Ford Aerostar
  • P21A3 Ford Bronco
  • P21A3 Ford C-Max
  • P21A3 Ford C-Max Energi
  • P21A3 Ford C-Max Hybrid
  • P21A3 Ford Contour
  • P21A3 Ford Crown Victoria
  • P21A3 Ford EcoSport
  • P21A3 Ford Econoline
  • P21A3 Ford Edge
  • P21A3 Ford Escape
  • P21A3 Ford Escape Hybrid
  • P21A3 Ford Escort
  • P21A3 Ford Everest
  • P21A3 Ford Excursion
  • P21A3 Ford Expedition
  • P21A3 Ford Explorer
  • P21A3 Ford Explorer Sport Trac
  • P21A3 Ford F-150
  • P21A3 Ford F-250
  • P21A3 Ford F-350
  • P21A3 Ford Fiesta
  • P21A3 Ford Flex
  • P21A3 Ford Focus
  • P21A3 Ford Focus Electric
  • P21A3 Ford Freestar
  • P21A3 Ford Freestyle
  • P21A3 Ford Fusion
  • P21A3 Ford Fusion Energi
  • P21A3 Ford Fusion Hybrid
  • P21A3 Ford Fusion Plug-In Hybrid
  • P21A3 Ford GT
  • P21A3 Ford Mustang
  • P21A3 Ford Mustang Mach-E
  • P21A3 Ford Mystique
  • P21A3 Ford Probe
  • P21A3 Ford Ranger
  • P21A3 Ford Taurus
  • P21A3 Ford Taurus X
  • P21A3 Ford Tempo
  • P21A3 Ford Thunderbird
  • P21A3 Ford Transit
  • P21A3 Ford Transit Connect
  • P21A3 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.