摘要 |
An evaluation system for a fault diagnosis function has an engine ECU. The ECU is connected to an engine, sensors, and a MIL. The ECU diagnoses the sensors. The ECU also determines whether a diagnosis process of the diagnosis function for the sensors is completed. A memory stores a plurality of the completion result. When at least one of the diagnosis processes is completed in the last ten completion result, it is determined that the diagnosis function is in a normal condition. Otherwise, it is determined that the diagnosis function is in an abnormal condition, and the MIL indicates the abnormal condition.
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