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Fundamentals of system

The VAS 5051 is a knowledge-based system. The knowledge base is present on a CD-ROM and includes the latest knowledge on:

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    Equipment

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    Fault codes of control units

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    Fault characteristics

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    Vehicle design with respect to functions

and components

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    Function tests

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    Technical documentation.

The data are combined in hierarchical architec- tures and linked to one another.

The knowledge base is generated using a diag- nostic development system. It can be easily supplemented and modified, thus permitting adaptation to new vehicles. The incorporation of new documents is also pos- sible, as is the utilization of workshop experience with e. g. new fault characteristics and their assignments.

As a result of the knowledge base, the diagnostic system is able:

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    To identify a vehicle and its standard/ optional equipment

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    To carry out an automatic system test of the electronic systems fitted in the vehicle

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    To carry out a "Guided fault finding" according to a test plan by selecting fault characteristics

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    To use own knowledge by direct selection of tests

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    To generate easy-to-use self-diagnosis func- tions

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    To generate new test plans following auto- matic incorporation of a function test.

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