IDB_a135 — DI brake Command Checksum
Full alert identifier: IDB_a135_DIbrakeCommandChecksum
Alert description
DI brake command message DI_brakeCommand checksum is incorrect.
Potential impact
The IDB may internally generate and actuate brake torque requests as a function of brake pedal stroke, and actuate External Brake Requests (EBR) in response to DI_brakeTorqueCommand instead of DI_brakeTorqueCommandFull.
Set condition
The IDB receives the DI_brakeCommand CAN message with incorrect CRC for longer than 100 milliseconds.
Clear condition
Clears when the Integrated Dynamic Brake (IDB) receives the DI_brakeCommand Controller Area Network (CAN) message with correct Cyclic Redundancy Check (CRC) 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 IDB_a135.