BMS_a067 — CAC Imbalance Limiting
Full alert identifier: BMS_a067_CAC_Imbalance_Limiting
Message shown in the car
High voltage battery performance limited OK to drive - Schedule service soon
Alert description
The Battery Management System (BMS) detects that the calculated Amp-hour capacity (CAC) difference between bricks within a single module exceeds the acceptable threshold, which may reduce battery performance.
Potential impact
Battery performance may be limited, which may reduce maximum range and may limit charging performance.
Set condition
The BMS detects that the estimated CAC imbalance between the average CAC and the minimum CAC of bricks within a single module exceeds the acceptable threshold.
Clear condition
The BMS detects that the estimated CAC imbalance between the average CAC and the minimum CAC of bricks within a single module is within the acceptable threshold.
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 |
|---|---|
Avg Brick Cac
BMS_
|
Ah |
Min Brick Cac
BMS_
|
Ah |
Mod Cac Imbalance Pct
BMS_
|
% |
| Signal | Unit |
|---|---|
Min Brick Cac Id
BMS_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of BMS_a067.