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System Diagram

Fig 1: Identifying Starting System Diagram
G04044920Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Communication table: 

COMMUNICATION METHOD REFERENCE

Transmitting ECU (Transmitter) Receiving ECU (Receiver) Signal Communication method
ECM Power source control ECU Engine rotation signal CAN/BEAN
Meter ECU Power source control ECU Vehicle speed signal BEAN/Local communication
Steering lock ECU Power source control ECU Steering lock/unlock signal LIN/Local communication
Shift lock control ECU Power source control ECU Shift position signal BEAN/Local communication
Certification ECU Power source control ECU LIN master signal LIN
Power source control ECU Certification ECU ID required signal LIN
- - Key existence condition signal BEAN