| 摘要 |
A diagnostic data collection unit ( 10 ) that collects diagnostic data of a vehicle is connected to electronic control units ( 11 ) and ( 12 ) for the vehicle through a CAN, and includes a specifying device for measurement items that specifies the measurement items to the electronic control units ( 11 ) and ( 12 ), a recording device ( 24 ) for diagnostic data that records control data based on the specified measurement items and operating data of each apparatus sent from the electronic control units ( 11 ) and ( 12 ), and a storage device ( 25 ) for recorded data that stores the recorded data of the recording device for the diagnostic data of during a predetermined period before or after a trigger generating device is activated.
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