B2421

B2421 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B2421 Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. 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 B2421 Fault Code Meaning :

Ford B2421 Symptoms :

Ford B2421 Reasons :

How To Fix Ford B2421 Trouble Code ?

Which Ford cars have the code B2421?

  • B2421 Ford Aerostar
  • B2421 Ford Bronco
  • B2421 Ford C-Max
  • B2421 Ford C-Max Energi
  • B2421 Ford C-Max Hybrid
  • B2421 Ford Contour
  • B2421 Ford Crown Victoria
  • B2421 Ford EcoSport
  • B2421 Ford Econoline
  • B2421 Ford Edge
  • B2421 Ford Escape
  • B2421 Ford Escape Hybrid
  • B2421 Ford Escort
  • B2421 Ford Everest
  • B2421 Ford Excursion
  • B2421 Ford Expedition
  • B2421 Ford Explorer
  • B2421 Ford Explorer Sport Trac
  • B2421 Ford F-150
  • B2421 Ford F-250
  • B2421 Ford F-350
  • B2421 Ford Fiesta
  • B2421 Ford Flex
  • B2421 Ford Focus
  • B2421 Ford Focus Electric
  • B2421 Ford Freestar
  • B2421 Ford Freestyle
  • B2421 Ford Fusion
  • B2421 Ford Fusion Energi
  • B2421 Ford Fusion Hybrid
  • B2421 Ford Fusion Plug-In Hybrid
  • B2421 Ford GT
  • B2421 Ford Mustang
  • B2421 Ford Mustang Mach-E
  • B2421 Ford Mystique
  • B2421 Ford Probe
  • B2421 Ford Ranger
  • B2421 Ford Taurus
  • B2421 Ford Taurus X
  • B2421 Ford Tempo
  • B2421 Ford Thunderbird
  • B2421 Ford Transit
  • B2421 Ford Transit Connect
  • B2421 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.