C3420

C3420 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3420 Diagnosis

This fault indicates that the circuit is drawing more current than it is designed to supply, and possibly there is a wiring fault shorting this circuit to ground. The fault remains active until the ignition is turned ON when the fault is no longer present.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.

This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.

Ford C3420 Fault Code Meaning :

Ford C3420 Symptoms :

Ford C3420 Reasons :

How To Fix Ford C3420 Trouble Code ?

Which Ford cars have the code C3420?

  • C3420 Ford Aerostar
  • C3420 Ford Bronco
  • C3420 Ford C-Max
  • C3420 Ford C-Max Energi
  • C3420 Ford C-Max Hybrid
  • C3420 Ford Contour
  • C3420 Ford Crown Victoria
  • C3420 Ford EcoSport
  • C3420 Ford Econoline
  • C3420 Ford Edge
  • C3420 Ford Escape
  • C3420 Ford Escape Hybrid
  • C3420 Ford Escort
  • C3420 Ford Everest
  • C3420 Ford Excursion
  • C3420 Ford Expedition
  • C3420 Ford Explorer
  • C3420 Ford Explorer Sport Trac
  • C3420 Ford F-150
  • C3420 Ford F-250
  • C3420 Ford F-350
  • C3420 Ford Fiesta
  • C3420 Ford Flex
  • C3420 Ford Focus
  • C3420 Ford Focus Electric
  • C3420 Ford Freestar
  • C3420 Ford Freestyle
  • C3420 Ford Fusion
  • C3420 Ford Fusion Energi
  • C3420 Ford Fusion Hybrid
  • C3420 Ford Fusion Plug-In Hybrid
  • C3420 Ford GT
  • C3420 Ford Mustang
  • C3420 Ford Mustang Mach-E
  • C3420 Ford Mystique
  • C3420 Ford Probe
  • C3420 Ford Ranger
  • C3420 Ford Taurus
  • C3420 Ford Taurus X
  • C3420 Ford Tempo
  • C3420 Ford Thunderbird
  • C3420 Ford Transit
  • C3420 Ford Transit Connect
  • C3420 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.