VCFRONT_a521 — Vcleft eFuse Load Shed
Full alert identifier: VCFRONT_a521_vcleftEFuseLoadShed
Alert description
The electrical current flowing through the left vehicle controller (VCLEFT) eFuse is greater or equal to 100A. The VCLEFT eFuse circuit may open (trip) if the low voltage (LV) electrical system loads are not reduced. The vehicle controller requests the VCLEFT to shed vehicle electrical loads by cutting power to the less essential loads.
Potential impact
Some convenience features controlled by the VCLEFT will be unavailable as the vehicle controller limits the LV electrical system current draw by cutting power to some loads.
Set condition
The VCLEFT eFuse current value equals or exceeds 100A for 100 milliseconds.
Clear condition
The VCLEFT eFuse current value remains below 100A for 100 milliseconds.
Signals to check
Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.
| Signal | Unit |
|---|---|
Ambient Temp
VCFRONT_
|
degC |
Vcleft E Fuse Current
VCFRONT_
|
A |
Vcleft E Fuse Temp
VCFRONT_
|
degC |
| Signal | Unit |
|---|---|
Frunk Open
VCFRONT_
|
— |
Service Mode
VCFRONT_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT_a521.