SECONDARY BRAKE SYSTEM FUNCTIONALITY

The method includes enabling the secondary brake system, triggering braking control by the secondary brake system, and obtaining measurements of an output of the secondary brake system. The output is for control of the one or more brake actuators, and the measurements are indicative of a response of the secondary brake system to the triggered braking control. The method also includes determining a functionality of the secondary brake system by comparing the measurements of the output of the secondary brake system to a corresponding output of the primary brake system.