BMS family
BMS_w051_SW_Current_Sensor_MIA
Vehicle may not restart
What does the BMS_w051_SW_Current_Sensor_MIA alert mean?
The battery management system (BMS) cannot communicate with the high voltage (HV) battery internal current sensor and has reported it as missing (MIA).
What you'll see in your Tesla
- Vehicle may not restart
- Service is required
What triggers it
The BMS is not receiving one or more communication messages from the internal current sensor/shunt when expected.
When it clears
The BMS establishes communication with the internal current sensor.
Potential impact
Inability to charge, drive, or support the low voltage (LV) system
Affected models
Model S 2012-2020
Model X 2015-2020
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Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.