P3934

P3934 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3934 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 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 BHM drives the 5 cab overhead clearance and ID lamps from connector B5 pin C on circuit 46. All other marker and tail lamps are driven from BHM connector B1,K on circuit 23. This circuit connects to the CHM as an input at connector J3,P.

Ford P3934 Fault Code Meaning :

Ford P3934 Symptoms :

Ford P3934 Reasons :

How To Fix Ford P3934 Trouble Code ?

Which Ford cars have the code P3934?

  • P3934 Ford Aerostar
  • P3934 Ford Bronco
  • P3934 Ford C-Max
  • P3934 Ford C-Max Energi
  • P3934 Ford C-Max Hybrid
  • P3934 Ford Contour
  • P3934 Ford Crown Victoria
  • P3934 Ford EcoSport
  • P3934 Ford Econoline
  • P3934 Ford Edge
  • P3934 Ford Escape
  • P3934 Ford Escape Hybrid
  • P3934 Ford Escort
  • P3934 Ford Everest
  • P3934 Ford Excursion
  • P3934 Ford Expedition
  • P3934 Ford Explorer
  • P3934 Ford Explorer Sport Trac
  • P3934 Ford F-150
  • P3934 Ford F-250
  • P3934 Ford F-350
  • P3934 Ford Fiesta
  • P3934 Ford Flex
  • P3934 Ford Focus
  • P3934 Ford Focus Electric
  • P3934 Ford Freestar
  • P3934 Ford Freestyle
  • P3934 Ford Fusion
  • P3934 Ford Fusion Energi
  • P3934 Ford Fusion Hybrid
  • P3934 Ford Fusion Plug-In Hybrid
  • P3934 Ford GT
  • P3934 Ford Mustang
  • P3934 Ford Mustang Mach-E
  • P3934 Ford Mystique
  • P3934 Ford Probe
  • P3934 Ford Ranger
  • P3934 Ford Taurus
  • P3934 Ford Taurus X
  • P3934 Ford Tempo
  • P3934 Ford Thunderbird
  • P3934 Ford Transit
  • P3934 Ford Transit Connect
  • P3934 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.