TESLA Warning

BMS_w156

BMS_w156_SW_BMB_Vref_bad

System
BMS
Battery Management System
Type
Warning
Category
Battery
Severity
Warning

What does BMS_w156 mean?

Tesla warning code in the Battery Management System (BMS) module. The battery management system (BMS) has detected that there is a potential battery management board (BMB) hardware issue related to the ADC Vref. If this alert is present, the samples taken from the ADC by the BMS do not match, and there may be a reference issue.

Original Description

The battery management system (BMS) has detected that there is a potential battery management board (BMB) hardware issue related to the ADC Vref. If this alert is present, the samples taken from the ADC by the BMS do not match, and there may be a reference issue.

Severity Notes

BMS_w156 is a Warning in the Battery Management System system. Schedule service soon. Monitor your vehicle for additional warnings.

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.