BMS_a098 — SW BMB Data Integrity Loss
Full alert identifier: BMS_a098_SW_BMB_Data_Integrity_Loss
Message shown in the car
Unable to charge Service is required
Alert description
The Battery Management System (BMS) has lost data integrity due to a battery monitoring board (BMB) chain double break.
Potential impact
The BMS is likely performing BMB sensor data substitution to replace data missing due to the communication issue.
Set condition
The BMS detects a prolonged communication issue with the BMB daisy chain that is known to cause a loss of BMB sensor data.
Clear condition
No BMB sensor data loss conditions are detected for a prolonged period of time.
Signals to check
These diagnostic fields are associated with BMS_a098. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Alert From Hvp
BMS_
|
— |
Bmb Comm Status Type A
BMS_
|
— |
Bmb Comm Status Type B
BMS_
|
— |
Break Location A
BMS_
|
— |
Break Location B
BMS_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of BMS_a098.