EFUSE_w010
EFUSE_w010_ExtSupplyVoltError
What does EFUSE_w010 mean?
Tesla warning code in the Electronic Fuse (EFUSE) module. The external 12V supply voltage from the vehicle is out of range. This alert sets when the measured voltage is detected to be below 7.31V, which indicates a power loss event. The alert is not set during an electronic control unit (ECU) reset. Once it is set, the alert is cleared when the voltage detected is above 7.31V. This alert is usually accompanied with other 12V alerts, indicating a generic 12V under voltage or sudden power loss.
Original Description
The external 12V supply voltage from the vehicle is out of range. This alert sets when the measured voltage is detected to be below 7.31V, which indicates a power loss event. The alert is not set during an electronic control unit (ECU) reset. Once it is set, the alert is cleared when the voltage detected is above 7.31V. This alert is usually accompanied with other 12V alerts, indicating a generic 12V under voltage or sudden power loss.
Severity Notes
EFUSE_w010 is a Warning in the Electronic Fuse system. Schedule service soon. Monitor your vehicle for additional warnings.
Other EFUSE Codes
View all EFUSE 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.