B3900
B3900 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.B3900 Diagnosis
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.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 FF.
The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.
Ford B3900 Fault Code Meaning :
Ford B3900 Symptoms :
Ford B3900 Reasons :
How To Fix Ford B3900 Trouble Code ?
Which Ford cars have the code B3900?
- B3900 Ford Aerostar
- B3900 Ford Bronco
- B3900 Ford C-Max
- B3900 Ford C-Max Energi
- B3900 Ford C-Max Hybrid
- B3900 Ford Contour
- B3900 Ford Crown Victoria
- B3900 Ford EcoSport
- B3900 Ford Econoline
- B3900 Ford Edge
- B3900 Ford Escape
- B3900 Ford Escape Hybrid
- B3900 Ford Escort
- B3900 Ford Everest
- B3900 Ford Excursion
- B3900 Ford Expedition
- B3900 Ford Explorer
- B3900 Ford Explorer Sport Trac
- B3900 Ford F-150
- B3900 Ford F-250
- B3900 Ford F-350
- B3900 Ford Fiesta
- B3900 Ford Flex
- B3900 Ford Focus
- B3900 Ford Focus Electric
- B3900 Ford Freestar
- B3900 Ford Freestyle
- B3900 Ford Fusion
- B3900 Ford Fusion Energi
- B3900 Ford Fusion Hybrid
- B3900 Ford Fusion Plug-In Hybrid
- B3900 Ford GT
- B3900 Ford Mustang
- B3900 Ford Mustang Mach-E
- B3900 Ford Mystique
- B3900 Ford Probe
- B3900 Ford Ranger
- B3900 Ford Taurus
- B3900 Ford Taurus X
- B3900 Ford Tempo
- B3900 Ford Thunderbird
- B3900 Ford Transit
- B3900 Ford Transit Connect
- B3900 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.