RCU_a020 — B Bstatus DLC
Full alert identifier: RCU_a020_BBstatusDLC
Alert description
BB status message was not received or message length is incorrect.
Potential impact
There may be an issue with the transmitting Electronic Control Unit (ECU).
Set condition
The RCU did not receive the BB_status CAN message for longer than 100 milliseconds or BB_status is received with incorrect data length for longer than 100 milliseconds.
Clear condition
Clears when the Redundant Control Unit (RCU) receives the BB_status Controller Area Network (CAN) message with correct data length for 100 milliseconds.
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of RCU_a020.