TESLA Fault

BMS_f073

BMS_f073_SW_Unexpctd_HV_Sys_Bhvr

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

What does BMS_f073 mean?

Tesla fault code in the Battery Management System (BMS) module. The high voltage (HV) battery detected an unexpected HV bus behavior. Often, this fault will trigger when the HV battery does a precharge dynamic weld check. Prior to closing the contactors, the Battery Management System (BMS) checks for any stuck or welded contactors. The BMS moves the pack plus and pack minus, after which the BMS compares movement of both packs. The BMS expects no movement from the Direct Current (DC) link plus and DC link minus.

Original Description

The high voltage (HV) battery detected an unexpected HV bus behavior. Often, this fault will trigger when the HV battery does a precharge dynamic weld check. Prior to closing the contactors, the Battery Management System (BMS) checks for any stuck or welded contactors. The BMS moves the pack plus and pack minus, after which the BMS compares movement of both packs. The BMS expects no movement from the Direct Current (DC) link plus and DC link minus.

Severity Notes

BMS_f073 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.