VCBATT_a462 — LVBMS Fault
Full alert identifier: VCBATT_a462_LVBMSFault
Alert description
The low voltage battery management system (LVBMS) reports a condition affecting the low voltage (LV) battery or the ability of the LVBMS to manage the LV battery. May result in LV battery damage or loss of LV battery support for vehicle electrical systems.
Potential impact
Lack of LVBMS functionality may result in LV battery damage or degradation, and may also result in loss of LV battery support for vehicle electrical systems.
Set condition
The LVBMS detects a condition affecting its ability to manage the LV battery. Alert log signal data should provide more information.
Clear condition
The LVBMS no longer detects a condition affecting its ability to manage the LV battery.
Signals to check
These diagnostic fields are associated with VCBATT_a462. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Balance Circuit Fault
VCBATT_
|
— |
CPA State
VCBATT_
|
— |
Cell OV Level 1
VCBATT_
|
— |
Cell OV Level 2
VCBATT_
|
— |
Cell OV Level 3
VCBATT_
|
— |
Cell UV Level 1
VCBATT_
|
— |
Cell UV Level 2
VCBATT_
|
— |
Chrg OC Level 1
VCBATT_
|
— |
Show 17 more fields
| Signal | Unit |
|---|---|
Chrg OC Level 2
VCBATT_
|
— |
Deep Discharge
VCBATT_
|
— |
Dischrg OC Level 1
VCBATT_
|
— |
Hardware OC Level 2
VCBATT_
|
— |
Imbalance
VCBATT_
|
— |
KB Value Lost Fault
VCBATT_
|
— |
MOSFETOT Level 1
VCBATT_
|
— |
MOSFET Stuck Close
VCBATT_
|
— |
MOSFET Stuck Open
VCBATT_
|
— |
MOS Open Fault
VCBATT_
|
— |
Module OT Level 1
VCBATT_
|
— |
NTC Temp Diff Warn Level 1
VCBATT_
|
— |
Pack OV Level 1
VCBATT_
|
— |
Pack OV Level 2
VCBATT_
|
— |
Sampling Error
VCBATT_
|
— |
Frunk Open
VCBATT_
|
— |
Service Mode
VCBATT_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCBATT_a462.