TESLA Fault

BMS_f127

BMS_f127_SW_CPLD_CRC

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

What does BMS_f127 mean?

Tesla fault code in the Battery Management System (BMS) module. The Battery Management System (BMS) has detected that there is an issue with the complex programmable logic device (CPLD). If this alert is present, the CPLD may be broken. If it is, the contactor power should be disconnected for safety purposes.

Original Description

The Battery Management System (BMS) has detected that there is an issue with the complex programmable logic device (CPLD). If this alert is present, the CPLD may be broken. If it is, the contactor power should be disconnected for safety purposes.

Severity Notes

BMS_f127 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.