U3973
U3973 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.U3973 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 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 U3973 Fault Code Meaning :
Ford U3973 Symptoms :
Ford U3973 Reasons :
How To Fix Ford U3973 Trouble Code ?
Which Ford cars have the code U3973?
- U3973 Ford Aerostar
- U3973 Ford Bronco
- U3973 Ford C-Max
- U3973 Ford C-Max Energi
- U3973 Ford C-Max Hybrid
- U3973 Ford Contour
- U3973 Ford Crown Victoria
- U3973 Ford EcoSport
- U3973 Ford Econoline
- U3973 Ford Edge
- U3973 Ford Escape
- U3973 Ford Escape Hybrid
- U3973 Ford Escort
- U3973 Ford Everest
- U3973 Ford Excursion
- U3973 Ford Expedition
- U3973 Ford Explorer
- U3973 Ford Explorer Sport Trac
- U3973 Ford F-150
- U3973 Ford F-250
- U3973 Ford F-350
- U3973 Ford Fiesta
- U3973 Ford Flex
- U3973 Ford Focus
- U3973 Ford Focus Electric
- U3973 Ford Freestar
- U3973 Ford Freestyle
- U3973 Ford Fusion
- U3973 Ford Fusion Energi
- U3973 Ford Fusion Hybrid
- U3973 Ford Fusion Plug-In Hybrid
- U3973 Ford GT
- U3973 Ford Mustang
- U3973 Ford Mustang Mach-E
- U3973 Ford Mystique
- U3973 Ford Probe
- U3973 Ford Ranger
- U3973 Ford Taurus
- U3973 Ford Taurus X
- U3973 Ford Tempo
- U3973 Ford Thunderbird
- U3973 Ford Transit
- U3973 Ford Transit Connect
- U3973 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.