P21C3

P21C3 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P21C3 Diagnosis

The fuse in the main PDM powering this circuit may be open. The root cause could be excessive loads on an output, or a short to ground in the VBAT2 supply to the CHM.The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.

The suspension proportioning output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for suspension proportioning air solenoid fault, and for air pressure switch short circuit fault.

Ford P21C3 Fault Code Meaning :

Ford P21C3 Symptoms :

Ford P21C3 Reasons :

How To Fix Ford P21C3 Trouble Code ?

Which Ford cars have the code P21C3?

  • P21C3 Ford Aerostar
  • P21C3 Ford Bronco
  • P21C3 Ford C-Max
  • P21C3 Ford C-Max Energi
  • P21C3 Ford C-Max Hybrid
  • P21C3 Ford Contour
  • P21C3 Ford Crown Victoria
  • P21C3 Ford EcoSport
  • P21C3 Ford Econoline
  • P21C3 Ford Edge
  • P21C3 Ford Escape
  • P21C3 Ford Escape Hybrid
  • P21C3 Ford Escort
  • P21C3 Ford Everest
  • P21C3 Ford Excursion
  • P21C3 Ford Expedition
  • P21C3 Ford Explorer
  • P21C3 Ford Explorer Sport Trac
  • P21C3 Ford F-150
  • P21C3 Ford F-250
  • P21C3 Ford F-350
  • P21C3 Ford Fiesta
  • P21C3 Ford Flex
  • P21C3 Ford Focus
  • P21C3 Ford Focus Electric
  • P21C3 Ford Freestar
  • P21C3 Ford Freestyle
  • P21C3 Ford Fusion
  • P21C3 Ford Fusion Energi
  • P21C3 Ford Fusion Hybrid
  • P21C3 Ford Fusion Plug-In Hybrid
  • P21C3 Ford GT
  • P21C3 Ford Mustang
  • P21C3 Ford Mustang Mach-E
  • P21C3 Ford Mystique
  • P21C3 Ford Probe
  • P21C3 Ford Ranger
  • P21C3 Ford Taurus
  • P21C3 Ford Taurus X
  • P21C3 Ford Tempo
  • P21C3 Ford Thunderbird
  • P21C3 Ford Transit
  • P21C3 Ford Transit Connect
  • P21C3 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.