P121C

P121C Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P121C 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 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 P121C Fault Code Meaning :

Ford P121C Symptoms :

Ford P121C Reasons :

How To Fix Ford P121C Trouble Code ?

Which Ford cars have the code P121C?

  • P121C Ford Aerostar
  • P121C Ford Bronco
  • P121C Ford C-Max
  • P121C Ford C-Max Energi
  • P121C Ford C-Max Hybrid
  • P121C Ford Contour
  • P121C Ford Crown Victoria
  • P121C Ford EcoSport
  • P121C Ford Econoline
  • P121C Ford Edge
  • P121C Ford Escape
  • P121C Ford Escape Hybrid
  • P121C Ford Escort
  • P121C Ford Everest
  • P121C Ford Excursion
  • P121C Ford Expedition
  • P121C Ford Explorer
  • P121C Ford Explorer Sport Trac
  • P121C Ford F-150
  • P121C Ford F-250
  • P121C Ford F-350
  • P121C Ford Fiesta
  • P121C Ford Flex
  • P121C Ford Focus
  • P121C Ford Focus Electric
  • P121C Ford Freestar
  • P121C Ford Freestyle
  • P121C Ford Fusion
  • P121C Ford Fusion Energi
  • P121C Ford Fusion Hybrid
  • P121C Ford Fusion Plug-In Hybrid
  • P121C Ford GT
  • P121C Ford Mustang
  • P121C Ford Mustang Mach-E
  • P121C Ford Mystique
  • P121C Ford Probe
  • P121C Ford Ranger
  • P121C Ford Taurus
  • P121C Ford Taurus X
  • P121C Ford Tempo
  • P121C Ford Thunderbird
  • P121C Ford Transit
  • P121C Ford Transit Connect
  • P121C 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.