BMS_a156_SW_BMB_Vref_bad

The battery management system (BMS) detects an out-of-bounds module voltage reference.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

Unable to charge
Service is required

Impact

This alert is primarily informational. Other BMB voltage signals will be substituted given the reference voltage is unreliable.

Description

The battery management system (BMS) detects an out-of-bounds module voltage reference.

Cause

Any battery monitoring board (BMB) reference voltage has continuously deviated outside the in-bounds threshold of the nominal voltage.

Clear condition

All BMB reference voltages continuously remain within the in-bounds threshold of the nominal voltage.

Models

Model 3 2017-2023, Model 3 2024+, Model S 2021+, Model X 2021+, Model Y, Model Y 2025+

Visibility

customer, service-fix

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