P21AB

P21AB Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P21AB Diagnosis

This fault indicates that the circuit is drawing more current than it is designed to supply, and possibly there is a wiring fault shorting this circuit to ground. The fault remains active until the ignition is turned ON when the fault is no longer present.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.

Engine starting is disabled and other optional functions may be interrupted until the fault is corrected and the ignition switch is cycled.

Ford P21AB Fault Code Meaning :

Ford P21AB Symptoms :

Ford P21AB Reasons :

How To Fix Ford P21AB Trouble Code ?

Which Ford cars have the code P21AB?

  • P21AB Ford Aerostar
  • P21AB Ford Bronco
  • P21AB Ford C-Max
  • P21AB Ford C-Max Energi
  • P21AB Ford C-Max Hybrid
  • P21AB Ford Contour
  • P21AB Ford Crown Victoria
  • P21AB Ford EcoSport
  • P21AB Ford Econoline
  • P21AB Ford Edge
  • P21AB Ford Escape
  • P21AB Ford Escape Hybrid
  • P21AB Ford Escort
  • P21AB Ford Everest
  • P21AB Ford Excursion
  • P21AB Ford Expedition
  • P21AB Ford Explorer
  • P21AB Ford Explorer Sport Trac
  • P21AB Ford F-150
  • P21AB Ford F-250
  • P21AB Ford F-350
  • P21AB Ford Fiesta
  • P21AB Ford Flex
  • P21AB Ford Focus
  • P21AB Ford Focus Electric
  • P21AB Ford Freestar
  • P21AB Ford Freestyle
  • P21AB Ford Fusion
  • P21AB Ford Fusion Energi
  • P21AB Ford Fusion Hybrid
  • P21AB Ford Fusion Plug-In Hybrid
  • P21AB Ford GT
  • P21AB Ford Mustang
  • P21AB Ford Mustang Mach-E
  • P21AB Ford Mystique
  • P21AB Ford Probe
  • P21AB Ford Ranger
  • P21AB Ford Taurus
  • P21AB Ford Taurus X
  • P21AB Ford Tempo
  • P21AB Ford Thunderbird
  • P21AB Ford Transit
  • P21AB Ford Transit Connect
  • P21AB 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.