Patent ID: 8565962

Claim:
A rewriting system, comprising: a plurality of electronic control units mounted on a vehicle, each of the plurality of electronic control units including a storage device for storing control information; and a device for sending new control information to rewrite the control information stored in the storage device of each of the plurality of electronic control units with the new control information, wherein one of the plurality of electronic control units is configured to make a determination whether the rewriting in the other of the plurality of electronic control units has been completed in response to a completion of the rewriting in the one of the plurality of electronic control units, and make a notification of a result of the determination, wherein the device sends a program for implementing the determination to the one of the plurality of electronic control units, and wherein the one of the plurality of electronic control units makes the determination by executing the program in response to the completion of the rewriting in the one of the plurality of electronic control units.