BMS family
BMS_a135_HW_BMB_Diagnostics_Failure
Not Available
What does the BMS_a135_HW_BMB_Diagnostics_Failure alert mean?
The battery management system (BMS) detects a pattern test failure on a battery monitoring board (BMB).
What you'll see in your Tesla
- Not Available
What triggers it
The BMS runs the BMB pattern diagnostics and detects a deviation from the expected results for any device in the chain.
When it clears
The BMS runs the BMB pattern diagnostics and receives the expected results for all devices in the chain.
Potential impact
This alert is primarily informational, and may indicate a potential BMB hardware failure.
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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