P21F1

P21F1 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P21F1 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.

Ford P21F1 Fault Code Meaning :

Ford P21F1 Symptoms :

Ford P21F1 Reasons :

How To Fix Ford P21F1 Trouble Code ?

Which Ford cars have the code P21F1?

  • P21F1 Ford Aerostar
  • P21F1 Ford Bronco
  • P21F1 Ford C-Max
  • P21F1 Ford C-Max Energi
  • P21F1 Ford C-Max Hybrid
  • P21F1 Ford Contour
  • P21F1 Ford Crown Victoria
  • P21F1 Ford EcoSport
  • P21F1 Ford Econoline
  • P21F1 Ford Edge
  • P21F1 Ford Escape
  • P21F1 Ford Escape Hybrid
  • P21F1 Ford Escort
  • P21F1 Ford Everest
  • P21F1 Ford Excursion
  • P21F1 Ford Expedition
  • P21F1 Ford Explorer
  • P21F1 Ford Explorer Sport Trac
  • P21F1 Ford F-150
  • P21F1 Ford F-250
  • P21F1 Ford F-350
  • P21F1 Ford Fiesta
  • P21F1 Ford Flex
  • P21F1 Ford Focus
  • P21F1 Ford Focus Electric
  • P21F1 Ford Freestar
  • P21F1 Ford Freestyle
  • P21F1 Ford Fusion
  • P21F1 Ford Fusion Energi
  • P21F1 Ford Fusion Hybrid
  • P21F1 Ford Fusion Plug-In Hybrid
  • P21F1 Ford GT
  • P21F1 Ford Mustang
  • P21F1 Ford Mustang Mach-E
  • P21F1 Ford Mystique
  • P21F1 Ford Probe
  • P21F1 Ford Ranger
  • P21F1 Ford Taurus
  • P21F1 Ford Taurus X
  • P21F1 Ford Tempo
  • P21F1 Ford Thunderbird
  • P21F1 Ford Transit
  • P21F1 Ford Transit Connect
  • P21F1 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.