EFUSE-W135
EFUSE_w135_condenserFanEFuseTrip
Also written as EFUSE_W135 / EFUSE W135 / EFUSE_w135_condenserFanEFuseTrip / efuse_w135_condenserfanefusetrip
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-W135 mean?
Tesla warning code in the Electronic Fuse (EFUSE) module. This alert will trip on whenever the HVAC rail is turned off. This is expected and should be ignored, shall be fixed in future versions of firmware. This alert will raise when the condenser fan channel is faulted as seen by the E-fuse electronic control unit (ECU). This can occur if an unexpectedly high inrush current into the condenser fan or a short circuit event has occurred at the condenser fan 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 output will measure ~0V.
Original Description
This alert will trip on whenever the HVAC rail is turned off. This is expected and should be ignored, shall be fixed in future versions of firmware. This alert will raise when the condenser fan channel is faulted as seen by the E-fuse electronic control unit (ECU). This can occur if an unexpectedly high inrush current into the condenser fan or a short circuit event has occurred at the condenser fan 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 output will measure ~0V.
Affected Tesla Models
What You May Notice
- Electronic Fuse alert: This alert will trip on whenever the HVAC rail is turned off. This is expected and should be ignored, shall be fixed in
- Related vehicle feature may be reduced or unavailable
- Alert visible in the Tesla app: This alert will trip on whenever the HVAC rail is turned off. This is expected a
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-W135 is a Warning in the Electronic Fuse system. Schedule service soon. Monitor your vehicle for additional warnings.