| 摘要 |
The method of reliably interrogating or retrieving control device data in a plurality of control devices in a vehicle using an external test device includes the steps of storing in a central station or nonvolatile memory in the vehicle information items including the types, operating addresses and number of control devices in the vehicle during assembly or final check of the vehicle; connecting the test device to a diagnostic connection connected by communication lines with the control devices and the central station, the diagnostic connection and the communication lines being provided in the vehicle; retrieving the information items from the central station with the test device via a standardized address to obtain the number, operating address and the type of each of the control devices prior to testing or accessing each control device; and, thereafter, in accordance with the data obtained during the retrieving, accessing individual control devices by either an automatic control or a manual control with the test device.
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