BMS_a097_SW_BMB_Over_CAN_Communication

The battery management system (BMS) did not receive a synchronous set of battery monitoring board (BMB) data through the BMB-over-CAN interface.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

None displayed

Impact

The BMS performs BMB sensor data substitution to replace missing data from unreceived CAN frames.

Description

The battery management system (BMS) did not receive a synchronous set of battery monitoring board (BMB) data through the BMB-over-CAN interface.

Cause

The BMS does not receive an expected CAN frame containing BMB information within the task timeout period.

Clear condition

All controller area network (CAN) frames containing BMB information are received at the expected task rate.

Models

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

Visibility

service

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