Tesla Alert Codes Explained
Every Tesla reports internal alert codes (like BMS_a117)
when something needs attention. Search the dictionary below to find what an alert means and what to do about it.
MyTeslaMate logs them automatically:
hosted TeslaMate with no server to run.
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| Signal Name | Description | Condition | Impact | Important |
|---|---|---|---|---|
|
Drive Inverter Slave Fault: Battery sensor bad
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: Battery under voltage
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: Motor over speed
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: Phase gate drive error counter exceeded
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: DC bus disconnected
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: Torque Limited because of Rotor Temperature
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: stwAngle is MIA
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: External torque command error
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: System graceful power off triggered
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: System limp mode triggered
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: Heatsink sensor bad
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: Heatsink under temperature
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: Battery over voltage detected in software
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: Phase current imbalance
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: Phase B current sensor bad
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: Heatsink over temperature
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: Ambient sensor bad
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: Ambient under temperature
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: Ambient over temperature
|
|
-
|
No
|
|
|
Drive Inverter Slave Fault: Unused alert 54
|
|
-
|
No
|