VCLEFT_a527 — LV Battery Cell Imbalance
Full alert identifier: VCLEFT_a527_LVBatteryCellImbalance
Alert description
The low voltage battery management system (LVBMS) reports it has detected a low voltage (LV) battery cell voltage imbalance.
Potential impact
The LV battery may suddenly become unavailable and unable to support vehicle electrical systems. The LV battery may require replacement, and a separate alert should be present to indicate this condition if applicable.
Set condition
The LVBMS detects that all LV battery cell voltages are not within 150mV of each other.
Clear condition
The LVBMS detects that all LV battery cell voltages are within 150mV of each other.
Signals to check
These diagnostic fields are associated with VCLEFT_a527. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Cell 1 Voltage
VCLEFT_
|
V |
Cell 2 Voltage
VCLEFT_
|
V |
Cell 3 Voltage
VCLEFT_
|
V |
Cell 4 Voltage
VCLEFT_
|
V |
Frunk Open
VCLEFT_
|
— |
Service Mode
VCLEFT_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCLEFT_a527.