RCU_a053 — ESP wheel Speeds Checksum
Full alert identifier: RCU_a053_ESPwheelSpeedsChecksum
Alert description
Wheel speeds message checksum is incorrect.
Potential impact
There may be an issue with the transmitting Electronic Control Unit (ECU), IDB.
Set condition
The RCU receives the ESP_wheelSpeeds CAN message from the IDB with incorrect CRC for longer than 100 milliseconds.
Clear condition
Clears when the Redundant Control Unit (RCU) receives the ESP_wheelSpeeds Controller Area Network (CAN) message from the Integrated Dynamic Brake (IDB) 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 RCU_a053.