BMS_a098_SW_BMB_Data_Integrity_Loss

The battery management system (BMS) has lost data integrity due to a battery monitoring board (BMB) chain double break.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

Unable to charge
Service is required

Impact

The BMS is likely performing BMB sensor data substitution to replace data missing due to the communication issue.

Description

The battery management system (BMS) has lost data integrity due to a battery monitoring board (BMB) chain double break.

Cause

The BMS detects a prolonged communication issue with the BMB daisy chain that is known to cause a loss of BMB sensor data.

Clear condition

No BMB sensor data loss conditions are detected for a prolonged period of time.

Models

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

Visibility

customer, service-fix

Want to track your firmware alerts, trips and more?

Sign up for Tessie. Try it free for 14 days. Happiness guaranteed.