U3945
U3945 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.U3945 Diagnosis
The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. 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.
The BHM measures the current on this circuit when the headlamp output is commanded ON. This fault indicates that the left high beam headlamp circuit is drawing more current than it is designed to supply and possibly there is a wiring fault shorting this circuit to ground.
Ford U3945 Fault Code Meaning :
Ford U3945 Symptoms :
Ford U3945 Reasons :
How To Fix Ford U3945 Trouble Code ?
Which Ford cars have the code U3945?
- U3945 Ford Aerostar
- U3945 Ford Bronco
- U3945 Ford C-Max
- U3945 Ford C-Max Energi
- U3945 Ford C-Max Hybrid
- U3945 Ford Contour
- U3945 Ford Crown Victoria
- U3945 Ford EcoSport
- U3945 Ford Econoline
- U3945 Ford Edge
- U3945 Ford Escape
- U3945 Ford Escape Hybrid
- U3945 Ford Escort
- U3945 Ford Everest
- U3945 Ford Excursion
- U3945 Ford Expedition
- U3945 Ford Explorer
- U3945 Ford Explorer Sport Trac
- U3945 Ford F-150
- U3945 Ford F-250
- U3945 Ford F-350
- U3945 Ford Fiesta
- U3945 Ford Flex
- U3945 Ford Focus
- U3945 Ford Focus Electric
- U3945 Ford Freestar
- U3945 Ford Freestyle
- U3945 Ford Fusion
- U3945 Ford Fusion Energi
- U3945 Ford Fusion Hybrid
- U3945 Ford Fusion Plug-In Hybrid
- U3945 Ford GT
- U3945 Ford Mustang
- U3945 Ford Mustang Mach-E
- U3945 Ford Mystique
- U3945 Ford Probe
- U3945 Ford Ranger
- U3945 Ford Taurus
- U3945 Ford Taurus X
- U3945 Ford Tempo
- U3945 Ford Thunderbird
- U3945 Ford Transit
- U3945 Ford Transit Connect
- U3945 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.