VCBATT1_a561 — LVBMS eFuse Overtemperature
Full alert identifier: VCBATT1_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
VCBATT1_
|
C |
Cell 1 Voltage
VCBATT1_
|
V |
Cell 2 Voltage
VCBATT1_
|
V |
Cell 3 Voltage
VCBATT1_
|
V |
Cell 4 Voltage
VCBATT1_
|
V |
Efuse Temperature
VCBATT1_
|
C |
Pack Temperature
VCBATT1_
|
C |
| Signal | Unit |
|---|---|
Factory Mode
VCBATT1_
|
— |
Frunk Open
VCBATT1_
|
— |
Service Mode
VCBATT1_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCBATT1_a561.