| 摘要 |
An on-vehicle system includes a plurality of control devices, a common data match determining unit, and a common data transmission permitting unit. Each of the plurality of control devices stores control data that includes common data and identification information. A first control device is configured to transmit the common data to a second control device such that the common data is updated. The common data match determining unit determines whether the common data of the second control device matches with the common data of the first control device based on the identification information of the common data when a first update condition is satisfied. The common data transmission permitting unit permits the first control device to transmit the common data to the second control device when the common data match determining unit determines that the common data stored in the first and second control devices mismatch with each other.
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