EFUSE-W133
EFUSE_w133_hcuEspAbsEFuseTrip
Also written as EFUSE_W133 / EFUSE W133 / EFUSE_w133_hcuEspAbsEFuseTrip / efuse_w133_hcuespabsefusetrip
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-W133 mean?
Tesla warning code in the Electronic Fuse (EFUSE) module. This alert will raise when the Electronic Stability Program (ESP) Motor E-fuse output is faulted as seen by the E-fuse electronic control unit (ECU). This can occur if an unexpectedly high inrush current into the ESP Motor module or a short circuit event has occurred at the output of the E-fuse. Another possibility is that a long current event, which exceeds the current carrying capability of the cable, has occurred. Once the E-fuse is tripped (turned off), the ESP Motor will measure ~0V when it is loaded or ~2V when there is an open circuit.?
Original Description
This alert will raise when the Electronic Stability Program (ESP) Motor E-fuse output is faulted as seen by the E-fuse electronic control unit (ECU). This can occur if an unexpectedly high inrush current into the ESP Motor module or a short circuit event has occurred at the output of the E-fuse. Another possibility is that a long current event, which exceeds the current carrying capability of the cable, has occurred. Once the E-fuse is tripped (turned off), the ESP Motor will measure ~0V when it is loaded or ~2V when there is an open circuit.?
Affected Tesla Models
What You May Notice
- Electronic Fuse alert: This alert will raise when the Electronic Stability Program (ESP) Motor E-fuse output is faulted as seen by the E-fuse e
- Related vehicle feature may be reduced or unavailable
- Alert visible in the Tesla app: This alert will raise when the Electronic Stability Program (ESP) Motor E-fuse o
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-W133 is a Warning in the Electronic Fuse system. Schedule service soon. Monitor your vehicle for additional warnings.