U3894

U3894 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3894 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 U3894 Fault Code Meaning :

Ford U3894 Symptoms :

Ford U3894 Reasons :

How To Fix Ford U3894 Trouble Code ?

Which Ford cars have the code U3894?

  • U3894 Ford Aerostar
  • U3894 Ford Bronco
  • U3894 Ford C-Max
  • U3894 Ford C-Max Energi
  • U3894 Ford C-Max Hybrid
  • U3894 Ford Contour
  • U3894 Ford Crown Victoria
  • U3894 Ford EcoSport
  • U3894 Ford Econoline
  • U3894 Ford Edge
  • U3894 Ford Escape
  • U3894 Ford Escape Hybrid
  • U3894 Ford Escort
  • U3894 Ford Everest
  • U3894 Ford Excursion
  • U3894 Ford Expedition
  • U3894 Ford Explorer
  • U3894 Ford Explorer Sport Trac
  • U3894 Ford F-150
  • U3894 Ford F-250
  • U3894 Ford F-350
  • U3894 Ford Fiesta
  • U3894 Ford Flex
  • U3894 Ford Focus
  • U3894 Ford Focus Electric
  • U3894 Ford Freestar
  • U3894 Ford Freestyle
  • U3894 Ford Fusion
  • U3894 Ford Fusion Energi
  • U3894 Ford Fusion Hybrid
  • U3894 Ford Fusion Plug-In Hybrid
  • U3894 Ford GT
  • U3894 Ford Mustang
  • U3894 Ford Mustang Mach-E
  • U3894 Ford Mystique
  • U3894 Ford Probe
  • U3894 Ford Ranger
  • U3894 Ford Taurus
  • U3894 Ford Taurus X
  • U3894 Ford Tempo
  • U3894 Ford Thunderbird
  • U3894 Ford Transit
  • U3894 Ford Transit Connect
  • U3894 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.