B3973
B3973 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.B3973 Diagnosis
The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open circuit fault.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 OFF.
The disconnected pipe malfunction is detected when the ventilator tube from the valve cover to the separator device is disconnected resulting in a pressure below the lower limit.Both of these malfunctions will result in a DTC being set.
Ford B3973 Fault Code Meaning :
Ford B3973 Symptoms :
Ford B3973 Reasons :
How To Fix Ford B3973 Trouble Code ?
Which Ford cars have the code B3973?
- B3973 Ford Aerostar
- B3973 Ford Bronco
- B3973 Ford C-Max
- B3973 Ford C-Max Energi
- B3973 Ford C-Max Hybrid
- B3973 Ford Contour
- B3973 Ford Crown Victoria
- B3973 Ford EcoSport
- B3973 Ford Econoline
- B3973 Ford Edge
- B3973 Ford Escape
- B3973 Ford Escape Hybrid
- B3973 Ford Escort
- B3973 Ford Everest
- B3973 Ford Excursion
- B3973 Ford Expedition
- B3973 Ford Explorer
- B3973 Ford Explorer Sport Trac
- B3973 Ford F-150
- B3973 Ford F-250
- B3973 Ford F-350
- B3973 Ford Fiesta
- B3973 Ford Flex
- B3973 Ford Focus
- B3973 Ford Focus Electric
- B3973 Ford Freestar
- B3973 Ford Freestyle
- B3973 Ford Fusion
- B3973 Ford Fusion Energi
- B3973 Ford Fusion Hybrid
- B3973 Ford Fusion Plug-In Hybrid
- B3973 Ford GT
- B3973 Ford Mustang
- B3973 Ford Mustang Mach-E
- B3973 Ford Mystique
- B3973 Ford Probe
- B3973 Ford Ranger
- B3973 Ford Taurus
- B3973 Ford Taurus X
- B3973 Ford Tempo
- B3973 Ford Thunderbird
- B3973 Ford Transit
- B3973 Ford Transit Connect
- B3973 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.