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RCU_a056 — Redundant Controller Is Master

Full alert identifier: RCU_a056_redundantControllerIsMaster

Alert description

The RCU is the master hydraulic brake controller.

Potential impact

The Redundant Control Unit will provide brake boost when the driver applies the brake pedal. This will result higher than normal brake pedal forces being required to achieve a given vehicle deceleration in addition to vibrating noises when the pedal is pressed.

Set condition

The IDB_boosterStatus signal has indicated that the Integrated Dynamic Brake (IDB) is unable to generate hydraulic brake pressure.

Clear condition

Clears when the IDB_boosterStatus signal indicates that the Integrated Dynamic Brake (IDB) is now able to generate hydraulic brake pressure.

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of RCU_a056.

Browse all RCU alert codes