U3946
U3946 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.U3946 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 disconnected pipe malfunction is detected when the ventilator tube from the valve cover to the separator device is disconnected resulting in a pressure below the lower limit.Both of these malfunctions will result in a DTC being set.
Ford U3946 Fault Code Meaning :
Ford U3946 Symptoms :
Ford U3946 Reasons :
How To Fix Ford U3946 Trouble Code ?
Which Ford cars have the code U3946?
- U3946 Ford Aerostar
- U3946 Ford Bronco
- U3946 Ford C-Max
- U3946 Ford C-Max Energi
- U3946 Ford C-Max Hybrid
- U3946 Ford Contour
- U3946 Ford Crown Victoria
- U3946 Ford EcoSport
- U3946 Ford Econoline
- U3946 Ford Edge
- U3946 Ford Escape
- U3946 Ford Escape Hybrid
- U3946 Ford Escort
- U3946 Ford Everest
- U3946 Ford Excursion
- U3946 Ford Expedition
- U3946 Ford Explorer
- U3946 Ford Explorer Sport Trac
- U3946 Ford F-150
- U3946 Ford F-250
- U3946 Ford F-350
- U3946 Ford Fiesta
- U3946 Ford Flex
- U3946 Ford Focus
- U3946 Ford Focus Electric
- U3946 Ford Freestar
- U3946 Ford Freestyle
- U3946 Ford Fusion
- U3946 Ford Fusion Energi
- U3946 Ford Fusion Hybrid
- U3946 Ford Fusion Plug-In Hybrid
- U3946 Ford GT
- U3946 Ford Mustang
- U3946 Ford Mustang Mach-E
- U3946 Ford Mystique
- U3946 Ford Probe
- U3946 Ford Ranger
- U3946 Ford Taurus
- U3946 Ford Taurus X
- U3946 Ford Tempo
- U3946 Ford Thunderbird
- U3946 Ford Transit
- U3946 Ford Transit Connect
- U3946 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.