TESLA Warning
DIS_w021
DIS_w021_hwBusOV
What does DIS_w021 mean?
Tesla warning code in the Drive Inverter Secondary (DIS) module. The Secondary Drive Inverter (DIS) detected an over-voltage condition in the High Voltage (HV) system.
Original Description
The Secondary Drive Inverter (DIS) detected an over-voltage condition in the High Voltage (HV) system.
Severity Notes
DIS_w021 is a Warning in the Drive Inverter Secondary system. Schedule service soon. Monitor your vehicle for additional warnings.
Other DIS Codes
DIS_f001 Drive Inverter Slave Fault: There is an issue with the phase... DIS_f002 Drive Inverter Slave Fault: There is an issue with the phase... DIS_f003 Drive Inverter Slave Fault: There is an issue with the phase... DIS_f004 DIS_f005 DIS_f006 Drive Inverter Slave Fault: A Phase C peak over-current is d... DIS_f010 Drive Inverter Slave Fault: The Pedal Monitor (PM) has reset... DIS_f011 Drive Inverter Slave Fault: The power stage is not ready....
View all DIS 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.