VCFRONT_a561 — LVBMS eFuse Overtemperature
Full alert identifier: VCFRONT_a561_LVBMSEFuseOvertemperature
Alert description
The Low Voltage Battery Management System (LVBMS) detects high temperature at the low voltage (LV) battery MOSFET (internal protection transistor).
Potential impact
The low voltage (LV) battery may show degraded performance or become unavailable due to high temperatures.
Set condition
The LVBMS MOSFET temperature has reached 100 deg C for 1 second.
Clear condition
The LVBMS is no longer reporting high MOSFET temperature.
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 Temperature
VCFRONT_
|
C |
Cell 1 Voltage
VCFRONT_
|
V |
Cell 2 Voltage
VCFRONT_
|
V |
Cell 3 Voltage
VCFRONT_
|
V |
Cell 4 Voltage
VCFRONT_
|
V |
Efuse Temperature
VCFRONT_
|
C |
Pack Temperature
VCFRONT_
|
C |
| Signal | Unit |
|---|---|
Factory Mode
VCFRONT_
|
— |
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_a561.