P3946

P3946 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3946 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.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 P3946 Fault Code Meaning :

Ford P3946 Symptoms :

Ford P3946 Reasons :

How To Fix Ford P3946 Trouble Code ?

Which Ford cars have the code P3946?

  • P3946 Ford Aerostar
  • P3946 Ford Bronco
  • P3946 Ford C-Max
  • P3946 Ford C-Max Energi
  • P3946 Ford C-Max Hybrid
  • P3946 Ford Contour
  • P3946 Ford Crown Victoria
  • P3946 Ford EcoSport
  • P3946 Ford Econoline
  • P3946 Ford Edge
  • P3946 Ford Escape
  • P3946 Ford Escape Hybrid
  • P3946 Ford Escort
  • P3946 Ford Everest
  • P3946 Ford Excursion
  • P3946 Ford Expedition
  • P3946 Ford Explorer
  • P3946 Ford Explorer Sport Trac
  • P3946 Ford F-150
  • P3946 Ford F-250
  • P3946 Ford F-350
  • P3946 Ford Fiesta
  • P3946 Ford Flex
  • P3946 Ford Focus
  • P3946 Ford Focus Electric
  • P3946 Ford Freestar
  • P3946 Ford Freestyle
  • P3946 Ford Fusion
  • P3946 Ford Fusion Energi
  • P3946 Ford Fusion Hybrid
  • P3946 Ford Fusion Plug-In Hybrid
  • P3946 Ford GT
  • P3946 Ford Mustang
  • P3946 Ford Mustang Mach-E
  • P3946 Ford Mystique
  • P3946 Ford Probe
  • P3946 Ford Ranger
  • P3946 Ford Taurus
  • P3946 Ford Taurus X
  • P3946 Ford Tempo
  • P3946 Ford Thunderbird
  • P3946 Ford Transit
  • P3946 Ford Transit Connect
  • P3946 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.