B3999
B3999 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.B3999 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.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.
The BHM measures the current on this circuit when the starter output is commanded ON. This fault indicates the magnetic switch or the wiring between the BHM and the magnetic switch is open circuit.
Ford B3999 Fault Code Meaning :
Ford B3999 Symptoms :
Ford B3999 Reasons :
How To Fix Ford B3999 Trouble Code ?
Which Ford cars have the code B3999?
- B3999 Ford Aerostar
- B3999 Ford Bronco
- B3999 Ford C-Max
- B3999 Ford C-Max Energi
- B3999 Ford C-Max Hybrid
- B3999 Ford Contour
- B3999 Ford Crown Victoria
- B3999 Ford EcoSport
- B3999 Ford Econoline
- B3999 Ford Edge
- B3999 Ford Escape
- B3999 Ford Escape Hybrid
- B3999 Ford Escort
- B3999 Ford Everest
- B3999 Ford Excursion
- B3999 Ford Expedition
- B3999 Ford Explorer
- B3999 Ford Explorer Sport Trac
- B3999 Ford F-150
- B3999 Ford F-250
- B3999 Ford F-350
- B3999 Ford Fiesta
- B3999 Ford Flex
- B3999 Ford Focus
- B3999 Ford Focus Electric
- B3999 Ford Freestar
- B3999 Ford Freestyle
- B3999 Ford Fusion
- B3999 Ford Fusion Energi
- B3999 Ford Fusion Hybrid
- B3999 Ford Fusion Plug-In Hybrid
- B3999 Ford GT
- B3999 Ford Mustang
- B3999 Ford Mustang Mach-E
- B3999 Ford Mystique
- B3999 Ford Probe
- B3999 Ford Ranger
- B3999 Ford Taurus
- B3999 Ford Taurus X
- B3999 Ford Tempo
- B3999 Ford Thunderbird
- B3999 Ford Transit
- B3999 Ford Transit Connect
- B3999 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.