SYSTEMS AND METHODS FOR DIAGNOSING COMPONENT FAILURE

Systems and methods for diagnosing at least one component in an exhaust aftertreatment system are provided. Operations to diagnose at least one component include causing an engine to operate through a sequence of a plurality of engine outputs; receiving, from at least one sensor, a first set of sensor data corresponding to a first engine output; diagnosing the at least one component based on the first set of sensor data, the diagnosis indicating a failure type; and causing at least one of the engine or an electric machine coupled to the engine to operate based on the failure type.