BMS family
BMS_w028_SW_Drive_Iso_StdDev
Not Available
What does the BMS_w028_SW_Drive_Iso_StdDev alert mean?
The battery management system (BMS) detects that the standard deviation of isolation resistance while in drive is high.
What you'll see in your Tesla
- Not Available
What triggers it
The BMS detects that the standard deviation of the high voltage (HV) isolation is outside of the set threshold.
When it clears
The BMS detects that the standard deviation of the HV isolation is within the acceptable bounds.
Potential impact
This alert is primarily informational and indicates a potential isolation issue.
Affected models
Model S 2012-2020
Model X 2015-2020
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