P921B

P921B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P921B 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 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 P921B Fault Code Meaning :

Ford P921B Symptoms :

Ford P921B Reasons :

How To Fix Ford P921B Trouble Code ?

Which Ford cars have the code P921B?

  • P921B Ford Aerostar
  • P921B Ford Bronco
  • P921B Ford C-Max
  • P921B Ford C-Max Energi
  • P921B Ford C-Max Hybrid
  • P921B Ford Contour
  • P921B Ford Crown Victoria
  • P921B Ford EcoSport
  • P921B Ford Econoline
  • P921B Ford Edge
  • P921B Ford Escape
  • P921B Ford Escape Hybrid
  • P921B Ford Escort
  • P921B Ford Everest
  • P921B Ford Excursion
  • P921B Ford Expedition
  • P921B Ford Explorer
  • P921B Ford Explorer Sport Trac
  • P921B Ford F-150
  • P921B Ford F-250
  • P921B Ford F-350
  • P921B Ford Fiesta
  • P921B Ford Flex
  • P921B Ford Focus
  • P921B Ford Focus Electric
  • P921B Ford Freestar
  • P921B Ford Freestyle
  • P921B Ford Fusion
  • P921B Ford Fusion Energi
  • P921B Ford Fusion Hybrid
  • P921B Ford Fusion Plug-In Hybrid
  • P921B Ford GT
  • P921B Ford Mustang
  • P921B Ford Mustang Mach-E
  • P921B Ford Mystique
  • P921B Ford Probe
  • P921B Ford Ranger
  • P921B Ford Taurus
  • P921B Ford Taurus X
  • P921B Ford Tempo
  • P921B Ford Thunderbird
  • P921B Ford Transit
  • P921B Ford Transit Connect
  • P921B 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.