BMS-F039
BMS_f039_SW_DC_Link_Over_Voltage
Also written as BMS_F039 / BMS F039 / BMS_f039_SW_DC_Link_Over_Voltage / bms_f039_sw_dc_link_over_voltage
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does BMS-F039 mean?
Tesla fault code in the Battery Management System (BMS) module. The Battery Management System (BMS) has detected that there has been an over voltage event that is external to the high voltage (HV) battery.
Original Description
The Battery Management System (BMS) has detected that there has been an over voltage event that is external to the high voltage (HV) battery.
Affected Tesla Models
What You May Notice
- Sudden loss of power or charging stops
- Dashboard warning about battery or electrical system
- Vehicle may shut down while driving
How to Diagnose and Resolve
- 1 Stop driving and disconnect any charger
- 2 Do not restart repeatedly
- 3 Perform a single reboot attempt: hold brake + scroll wheels
- 4 If the vehicle is non-operational, arrange flatbed tow
- 5 Technician will inspect external HV components (charge cables, inverter, DC-DC converter) for overvoltage cause
Severity Notes
BMS-F039 is classified as a Fault, indicating a critical issue in the Battery Management System system. Do not continue driving and contact Tesla Service immediately.