U3984
U3984 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.U3984 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 supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.
The suspension proportioning output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for suspension proportioning air solenoid fault, and for air pressure switch short circuit fault.
Ford U3984 Fault Code Meaning :
Ford U3984 Symptoms :
Ford U3984 Reasons :
How To Fix Ford U3984 Trouble Code ?
Which Ford cars have the code U3984?
- U3984 Ford Aerostar
- U3984 Ford Bronco
- U3984 Ford C-Max
- U3984 Ford C-Max Energi
- U3984 Ford C-Max Hybrid
- U3984 Ford Contour
- U3984 Ford Crown Victoria
- U3984 Ford EcoSport
- U3984 Ford Econoline
- U3984 Ford Edge
- U3984 Ford Escape
- U3984 Ford Escape Hybrid
- U3984 Ford Escort
- U3984 Ford Everest
- U3984 Ford Excursion
- U3984 Ford Expedition
- U3984 Ford Explorer
- U3984 Ford Explorer Sport Trac
- U3984 Ford F-150
- U3984 Ford F-250
- U3984 Ford F-350
- U3984 Ford Fiesta
- U3984 Ford Flex
- U3984 Ford Focus
- U3984 Ford Focus Electric
- U3984 Ford Freestar
- U3984 Ford Freestyle
- U3984 Ford Fusion
- U3984 Ford Fusion Energi
- U3984 Ford Fusion Hybrid
- U3984 Ford Fusion Plug-In Hybrid
- U3984 Ford GT
- U3984 Ford Mustang
- U3984 Ford Mustang Mach-E
- U3984 Ford Mystique
- U3984 Ford Probe
- U3984 Ford Ranger
- U3984 Ford Taurus
- U3984 Ford Taurus X
- U3984 Ford Tempo
- U3984 Ford Thunderbird
- U3984 Ford Transit
- U3984 Ford Transit Connect
- U3984 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.