Electronic control unit and vehicle control system

摘要

When an electronic control unit receives a rewriting request of vehicle identification information, the electronic control unit writes state information indicating a rewriting state in a memory and rewrites the vehicle identification information into new vehicle identification information. The electronic control unit sends an erasing order to a peripheral electronic unit for erasing failure information stored in the peripheral electronic unit and determines whether the peripheral electronic control unit sends an erasing completion signal indicating that the erasing of the failure information is completed. The electronic control unit erases the state information indicating the rewriting state when the rewriting of the vehicle identification information is completed and the peripheral electronic control unit sends the erasing completion signal.