B3420

B3420 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3420 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 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 OFF.

The top-of-clutch switch and bottom-of-clutch switch are both measured as closed at the same time. Troubleshoot for clutch switch shorted, or for a wiring fault between the clutch switch and the BHM.

Ford B3420 Fault Code Meaning :

Ford B3420 Symptoms :

Ford B3420 Reasons :

How To Fix Ford B3420 Trouble Code ?

Which Ford cars have the code B3420?

  • B3420 Ford Aerostar
  • B3420 Ford Bronco
  • B3420 Ford C-Max
  • B3420 Ford C-Max Energi
  • B3420 Ford C-Max Hybrid
  • B3420 Ford Contour
  • B3420 Ford Crown Victoria
  • B3420 Ford EcoSport
  • B3420 Ford Econoline
  • B3420 Ford Edge
  • B3420 Ford Escape
  • B3420 Ford Escape Hybrid
  • B3420 Ford Escort
  • B3420 Ford Everest
  • B3420 Ford Excursion
  • B3420 Ford Expedition
  • B3420 Ford Explorer
  • B3420 Ford Explorer Sport Trac
  • B3420 Ford F-150
  • B3420 Ford F-250
  • B3420 Ford F-350
  • B3420 Ford Fiesta
  • B3420 Ford Flex
  • B3420 Ford Focus
  • B3420 Ford Focus Electric
  • B3420 Ford Freestar
  • B3420 Ford Freestyle
  • B3420 Ford Fusion
  • B3420 Ford Fusion Energi
  • B3420 Ford Fusion Hybrid
  • B3420 Ford Fusion Plug-In Hybrid
  • B3420 Ford GT
  • B3420 Ford Mustang
  • B3420 Ford Mustang Mach-E
  • B3420 Ford Mystique
  • B3420 Ford Probe
  • B3420 Ford Ranger
  • B3420 Ford Taurus
  • B3420 Ford Taurus X
  • B3420 Ford Tempo
  • B3420 Ford Thunderbird
  • B3420 Ford Transit
  • B3420 Ford Transit Connect
  • B3420 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.