EFUSE-W010
EFUSE_w010_ExtSupplyVoltError
Also written as EFUSE_W010 / EFUSE W010 / EFUSE_w010_ExtSupplyVoltError / efuse_w010_extsupplyvolterror
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 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.
Affected Tesla Models
What You May Notice
- Electronic Fuse alert: The external 12V supply voltage from the vehicle is out of range. This alert sets when the measured voltage is detected
- Related vehicle feature may be reduced or unavailable
- Alert visible in the Tesla app: The external 12V supply voltage from the vehicle is out of range. This alert set
How to Diagnose and Resolve
- 1 Reboot the vehicle by holding both scroll wheels for 10 seconds
- 2 Check for pending OTA software updates in Controls > Software
- 3 If the alert persists, schedule a Tesla Service appointment
- 4 Describe the alert code and any symptoms when booking service
Severity Notes
EFUSE-W010 is a Warning in the Electronic Fuse system. Schedule service soon. Monitor your vehicle for additional warnings.