TESLA Fault

BMS_f124

BMS_f124_SW_BMB_Comm_Integrity

System
BMS
Battery Management System
Type
Fault
Category
Battery
Severity
Fault (Critical)

What does BMS_f124 mean?

Tesla fault code in the Battery Management System (BMS) module. The Battery Management System (BMS) and the Battery Monitor Boards (BMBs) are not communicating as expected. The BMS constantly sends a message on the daisy chain for each BMB, and it is expected that every BMB will respond. If this alert is present, there have been more than 10 errors detected per second.

Original Description

The Battery Management System (BMS) and the Battery Monitor Boards (BMBs) are not communicating as expected. The BMS constantly sends a message on the daisy chain for each BMB, and it is expected that every BMB will respond. If this alert is present, there have been more than 10 errors detected per second.

Severity Notes

BMS_f124 is classified as a Fault, indicating a critical issue in the Battery Management System system. Do not continue driving and contact Tesla Service immediately.

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 →

Tesla alert codes sourced from the community-maintained Tesla Alerts Dictionary. This information is for educational purposes only. Always consult Tesla Service for official diagnosis and repairs.