Motor vehicle fault diagnosis system has a fault diagnosis model that used error codes or fault symptoms as input and calculates the most likely cause, optimally using a fault database in an expert system analogous manner

摘要

Computer-based fault diagnosis system for a motor vehicles is provided with a fault diagnosis model with which the cause of a fault can be directly determined from condition data, especially error codes or symptoms. The diagnosis system can be extended with a fault database (6) to form an expert system. An independent claim is made for a motor vehicle fault diagnosis method.