EFUSE_w134
EFUSE_w134_IBoosterEFuseTrip
What does EFUSE_w134 mean?
Tesla warning code in the Electronic Fuse (EFUSE) module. This alert will raise when the iBooster channel is faulted as seen by the E-fuse electronic control unit (ECU). This can occur if an unexpectedly high inrush current into the iBooster or a short circuit event has occurred at the iBooster 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 if it is loaded or ~?9.6-10.6V if there is an open circuit.
Original Description
This alert will raise when the iBooster channel is faulted as seen by the E-fuse electronic control unit (ECU). This can occur if an unexpectedly high inrush current into the iBooster or a short circuit event has occurred at the iBooster 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 if it is loaded or ~?9.6-10.6V if there is an open circuit.
Severity Notes
EFUSE_w134 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.