IDB_a109 — BD Wsignal Invalid
Full alert identifier: IDB_a109_BDWsignalInvalid
Alert description
Invalid BDW request is received.
Potential impact
The Integrated Dynamic Brake (IDB) may not automatically wipe the brake discs in wet or cold conditions.
Set condition
The IDB receives the EPBL_brakeDiscWipeRequest CAN signal as EPB_BRAKEDISCWIPE_REQUEST_SNA for longer than 1 second, or the EPBL_status CAN message has a checksum, counter, or message length error.
Clear condition
Clears when a valid EPBL_brakeDiscWipeRequest Controller Area Network (CAN) signal is received for 1 second, or the Integrated Dynamic Brake (IDB) is power cycled.
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of IDB_a109.