BMS_a020 — SW Brick Instability
Full alert identifier: BMS_a020_SW_Brick_Instability
Message shown in the car
Shutdown - Pull over and exit vehicle safely Immediate service is required
Alert description
The Battery Management System (BMS) has detected that a brick has shown second order instability noise.
Potential impact
This alert is primarily informational.
Set condition
The BMS detects that brickV[n], when compared with avgModulebrickV, shows large differentials and noise.
Clear condition
The BMS detects that the condition clears.
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 |
|---|---|
Last Brick V Delta
BMS_
|
V |
Pack Current
BMS_
|
A |
| Signal | Unit |
|---|---|
Unstable Brick V Filtered Counts
BMS_
|
— |
Unstable Brick VID
BMS_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of BMS_a020.