| 摘要 |
The invention relates to a method or an arrangement for function checking of internal combustion engines in motor vehicles, in which an external testing and measuring system is connected via a diagnostic interface to an on-board diagnostic and control system, and after the start of the testing process, the testing system triggers control signals to adjust the defined operating conditions of the internal combustion engine, and performs and documents analyses. To ensure an automatic testing process, it is proposed to launch a safety routine in the diagnostic and control system that interrupts the automatic testing process when certain signals are present from on-board control and/or operating devices.
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