The battery management system (BMS) detects that the negative contactor remains open during the first 2 seconds of pack contactors attempting to close.
<0.01% (Extremely rare)
Unable to start vehicle
Service is required
Inability to charge, drive, or support the low voltage (LV) system
The battery management system (BMS) detects that the negative contactor remains open during the first 2 seconds of pack contactors attempting to close.
The BMS detects that the negative pack contactor is welded.
The negative contactor closes as expected.
Model S 2012-2020, Model X 2015-2020
customer, service-fix
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