P421E

P421E Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P421E Diagnosis

The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open circuit fault.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

The BHM measures the current on this circuit when the starter output is commanded ON. This fault indicates the magnetic switch or the wiring between the BHM and the magnetic switch is open circuit.

Ford P421E Fault Code Meaning :

Ford P421E Symptoms :

Ford P421E Reasons :

How To Fix Ford P421E Trouble Code ?

Which Ford cars have the code P421E?

  • P421E Ford Aerostar
  • P421E Ford Bronco
  • P421E Ford C-Max
  • P421E Ford C-Max Energi
  • P421E Ford C-Max Hybrid
  • P421E Ford Contour
  • P421E Ford Crown Victoria
  • P421E Ford EcoSport
  • P421E Ford Econoline
  • P421E Ford Edge
  • P421E Ford Escape
  • P421E Ford Escape Hybrid
  • P421E Ford Escort
  • P421E Ford Everest
  • P421E Ford Excursion
  • P421E Ford Expedition
  • P421E Ford Explorer
  • P421E Ford Explorer Sport Trac
  • P421E Ford F-150
  • P421E Ford F-250
  • P421E Ford F-350
  • P421E Ford Fiesta
  • P421E Ford Flex
  • P421E Ford Focus
  • P421E Ford Focus Electric
  • P421E Ford Freestar
  • P421E Ford Freestyle
  • P421E Ford Fusion
  • P421E Ford Fusion Energi
  • P421E Ford Fusion Hybrid
  • P421E Ford Fusion Plug-In Hybrid
  • P421E Ford GT
  • P421E Ford Mustang
  • P421E Ford Mustang Mach-E
  • P421E Ford Mystique
  • P421E Ford Probe
  • P421E Ford Ranger
  • P421E Ford Taurus
  • P421E Ford Taurus X
  • P421E Ford Tempo
  • P421E Ford Thunderbird
  • P421E Ford Transit
  • P421E Ford Transit Connect
  • P421E 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.