EFUSE-W131
EFUSE_w131_epas2EFuseTrip
Also written as EFUSE_W131 / EFUSE W131 / EFUSE_w131_epas2EFuseTrip / efuse_w131_epas2efusetrip
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-W131 mean?
Tesla warning code in the Electronic Fuse (EFUSE) module. This alert will trigger when the EPAS2 E-fuse output is faulted as seen by the E-fuse electronic control unit (ECU). This can occur if an unexpectedly high inrush current out of the EPAS2 feed 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 EPAS1 will measure ~0V when it is loaded or ~9.8V when there is an open circuit. The EPAS2 E-fuse output in Model X vehicles are responsible for all of the following loads. EPAS2 (secondary).Falcon Doors.2nd and 3rd row seats.All other loads on the Auxiliary Fuse Box. For Model S vehicles, only EPAS2 is connected to this output. Any short circuit or inrush condition on the above feeds may cause this E-fuse to trip. ?
Original Description
This alert will trigger when the EPAS2 E-fuse output is faulted as seen by the E-fuse electronic control unit (ECU). This can occur if an unexpectedly high inrush current out of the EPAS2 feed 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 EPAS1 will measure ~0V when it is loaded or ~9.8V when there is an open circuit. The EPAS2 E-fuse output in Model X vehicles are responsible for all of the following loads. EPAS2 (secondary).Falcon Doors.2nd and 3rd row seats.All other loads on the Auxiliary Fuse Box. For Model S vehicles, only EPAS2 is connected to this output. Any short circuit or inrush condition on the above feeds may cause this E-fuse to trip. ?
Affected Tesla Models
What You May Notice
- Electronic Fuse alert: This alert will trigger when the EPAS2 E-fuse output is faulted as seen by the E-fuse electronic control unit (ECU). Thi
- Related vehicle feature may be reduced or unavailable
- Alert visible in the Tesla app: This alert will trigger when the EPAS2 E-fuse output is faulted as seen by the E
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-W131 is a Warning in the Electronic Fuse system. Schedule service soon. Monitor your vehicle for additional warnings.