TESLA Alert

BMS-A109

BMS_a109_HW_BMB_Mute_Status_Mismatch

System
BMS
Battery Management System
Type
Alert
Category
Battery
Severity
Alert

What does BMS-A109 mean?

Tesla alert code in the Battery Management System (BMS) module. A BMB device has a MUTE status that does not align with the MUTE/UNMUTE command sent by the BMS MUTE is disabled for any device while balancing, or otherwise enabled for any device MUTE is enabled for all devices while balancing, or otherwise disabled for all devices Bleeding bricks that do not MUTE during balancing can impact SOC estimation

Original Description

A BMB device has a MUTE status that does not align with the MUTE/UNMUTE command sent by the BMS MUTE is disabled for any device while balancing, or otherwise enabled for any device MUTE is enabled for all devices while balancing, or otherwise disabled for all devices Bleeding bricks that do not MUTE during balancing can impact SOC estimation

Severity Notes

BMS-A109 is an Alert in the Battery Management System system. It is generally safe to continue driving, but have it checked at your next scheduled service.

Other BMS Codes

BMS_a001 BMS_a002 The Gateway packPerformanceDeviation config does not match t... BMS_a003 BMS was unable to read a pack birth date from the calibratio... BMS_a004 The pack hot seal test has not completed in the lifetime of ... BMS_a007 Charge rate is limited until cell temperatures increase... BMS_a016 The module IDs do not match the pack type set by the config ... BMS_a017 BMS_a018
View all BMS codes →