TESLA Alert

BMS-A121

BMS_a121_SW_NVRAM_Config_Error

System
BMS
Battery Management System
Type
Alert
Category
Battery
Severity
Alert

What does BMS-A121 mean?

Tesla alert code in the Battery Management System (BMS) module. Indicate that NVRAM data was not initialized because of a config error Indicate that a graceful power off has been activated by the BMS BMS has reduced power for driving due to a fault Indicate that an FEIM test is required but currently blocked by another fault

Original Description

Indicate that NVRAM data was not initialized because of a config error Indicate that a graceful power off has been activated by the BMS BMS has reduced power for driving due to a fault Indicate that an FEIM test is required but currently blocked by another fault

Severity Notes

BMS-A121 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 →