U3966
U3966 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.U3966 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 ICU reads the wiper switch position and sends the status of the switch to the BHM. This fault becomes active when the ICU reads that both LO speed and HI speed are active at the same time.
Troubleshoot for a wiring short to ground fault on any of the CHM output or BHM output circuits discussed above. The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.
Ford U3966 Fault Code Meaning :
Ford U3966 Symptoms :
Ford U3966 Reasons :
How To Fix Ford U3966 Trouble Code ?
Which Ford cars have the code U3966?
- U3966 Ford Aerostar
- U3966 Ford Bronco
- U3966 Ford C-Max
- U3966 Ford C-Max Energi
- U3966 Ford C-Max Hybrid
- U3966 Ford Contour
- U3966 Ford Crown Victoria
- U3966 Ford EcoSport
- U3966 Ford Econoline
- U3966 Ford Edge
- U3966 Ford Escape
- U3966 Ford Escape Hybrid
- U3966 Ford Escort
- U3966 Ford Everest
- U3966 Ford Excursion
- U3966 Ford Expedition
- U3966 Ford Explorer
- U3966 Ford Explorer Sport Trac
- U3966 Ford F-150
- U3966 Ford F-250
- U3966 Ford F-350
- U3966 Ford Fiesta
- U3966 Ford Flex
- U3966 Ford Focus
- U3966 Ford Focus Electric
- U3966 Ford Freestar
- U3966 Ford Freestyle
- U3966 Ford Fusion
- U3966 Ford Fusion Energi
- U3966 Ford Fusion Hybrid
- U3966 Ford Fusion Plug-In Hybrid
- U3966 Ford GT
- U3966 Ford Mustang
- U3966 Ford Mustang Mach-E
- U3966 Ford Mystique
- U3966 Ford Probe
- U3966 Ford Ranger
- U3966 Ford Taurus
- U3966 Ford Taurus X
- U3966 Ford Tempo
- U3966 Ford Thunderbird
- U3966 Ford Transit
- U3966 Ford Transit Connect
- U3966 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.