| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electronic control system, an electronic control device, and a control data writing method, which enhances reliability. <P>SOLUTION: An electronic control system is equipped with: a steering lock ECU 2 having a flash memory for storing control data; a door ECU 11 for storing a transmission flag and transmitting the control data to the steering lock ECU 2; a power window ECU 20; and an audio ECU 30. The door ECU 11, power window ECU 20 and audio ECU 30 transmit the control data to the steering lock ECU 2 in which the control data is not stored yet to set the transmission flag from an untransmitted state to a transmission completed state when inputting a transmission request from an external tool 40. When inputting the transmission request in a transmission completed state of the transmission flag, the control data is not transmitted to the steering lock ECU 2. <P>COPYRIGHT: (C)2008,JPO&INPIT |
