VEHICULAR FAILURE DIAGNOSING METHOD, FAILURE DIAGNOSIS SYSTEM, ON-VEHICLE DEVICE, FAILURE ANALYSIS DEVICE, AND FAILURE DIAGNOSIS DEVICE

摘要

PROBLEM TO BE SOLVED: To facilitate specifying of a failure part and investigating of a failure cause, by providing diagnosing information to failure diagnosis while storing the information in association with spot information and date and time when the failure occurs.

SOLUTION: The on-vehicle device monitors the diagnosing information of various ECU, and stores the diagnosing information at the time of failure occurrence with a road state obtained from vehicular position information. The correlation of failure contents and a road state at the time of the failure occurrence is analyzed on the basis of information stored by the failure analysis device. Referring to the analysis result, specifying of the failure part and investigating of the failure cause are carried out.

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