Failure information detection device, failure information detection system, server, and failure information detection method

摘要

A failure information detection device that detects abnormality of a vehicle-mounted device that is mounted in a vehicle has: an attachment detection portion that detects whether a first component part has been attached to the vehicle; an abnormality detection portion that detects abnormality of a second component part that is disposed on the first component part; and an abnormality information discernment portion that discerns that abnormality information regarding the abnormality is not based on a failure of the vehicle-mounted device if the attachment detection portion detects that the first component part has not been attached to the vehicle.