Author: BenjaminNelson via YouTube
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My car died! The 12V battery was dead, and even after charging that, it still won’t go into DRIVE! Using service mode shows the BMS_F107 and BMS_W107_SW_Cell_Voltage Sensor errors.
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These errors have to do with the Battery Management System (BMS) in the High Voltage Battery Pack. A BMS wire could be looks, or it could be a bad capacitor on a battery management board.
Either way, I need to drop the battery pack, open it up, and inspect and repair it.
It IS possible to clear this error using Tesla’s Toolbox software, but without fixing the problem, it will just come back. The command in Toolbox is CLEAR BMS OPEN VSH LATCH to reset the error.
I also used the Scan My Tesla App with an OBD2 reader to my phone, and saw that all the voltages of the cell blocks look fine. That doesn’t help me locate WHERE exactly the issue is.
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