What system does EFUSE_w155 belong to?

EFUSE_w155 belongs to the Electronic Fuse (EFUSE) system in Tesla vehicles. It is classified as a "warning" type alert in the "battery" category.

TESLA Warning

EFUSE_w155

EFUSE_w155_12VTempSensDiscnect

System

EFUSE

Electronic Fuse

Type

Warning

What does EFUSE_w155 mean?

Tesla warning code in the Electronic Fuse (EFUSE) module. The temperature sensor for the 12V battery is disconnected from the E-fuse and reporting open circuit on the harness. This will result in a default voltage set-point being used for charging the 12V battery, which will not be optimized for the present temperature. As a result, it is likely the 12V battery life will be reduced.

Original Description

The temperature sensor for the 12V battery is disconnected from the E-fuse and reporting open circuit on the harness. This will result in a default voltage set-point being used for charging the 12V battery, which will not be optimized for the present temperature. As a result, it is likely the 12V battery life will be reduced.

Severity Notes

EFUSE_w155 is a Warning in the Electronic Fuse system. Schedule service soon. Monitor your vehicle for additional warnings.

Other EFUSE Codes

EFUSE_w001 EFUSE_w010 The external 12V supply voltage from the vehicle is out of r... EFUSE_w012 The EFUSE Modeule CPU detected a reset, which can potentiall... EFUSE_w013 EFUSE_w015 EFUSE_w021 EFUSE_w022 EFUSE_w041

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.