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BMS_w028 — SW Drive Iso Std Dev

Full alert identifier: BMS_w028_SW_Drive_Iso_StdDev

Alert description

The battery management system (BMS) detects that the standard deviation of isolation resistance while in drive is high.

Potential impact

This alert is primarily informational and indicates a potential isolation issue.

Set condition

The BMS detects that the standard deviation of the high voltage (HV) isolation is outside of the set threshold.

Clear condition

The BMS detects that the standard deviation of the HV isolation is within the acceptable bounds.

Signals to check

Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.

Signal Unit
Avg Std Dev BMS_a028_avgStdDev kOhms

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of BMS_w028.

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