System Diagram [08/2015 - 08/2019]

This is a detailed diagram related to certification ECU.

Fig 1: Smart Access System With Push-Button Start (For Entry Function) Wiring Diagram (1 Of 4)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Smart Access System With Push-Button Start (For Entry Function) Wiring Diagram (2 Of 4)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

This is a detailed diagram related to main body ECU (multiplex network body ECU).

Fig 3: Smart Access System With Push-Button Start (For Entry Function) Wiring Diagram (3 Of 4)

Fig 4: Smart Access System With Push-Button Start (For Entry Function) Wiring Diagram (4 Of 4)

Component	Function
Front door outside handle assembly LH/RH	Sends request signals from the certification ECU via the built-in electrical key antenna and forms the vehicle exterior detection area. Sends door lock switch operation signals to the certification ECU (entry lock function). Uses the built-in touch sensor to detect the operation of the front door outside handle assembly and sends signals to the certification ECU (entry unlock function).
Indoor No. 1 electrical key antenna assembly (front floor) Indoor No. 2 electrical key antenna assembly (rear floor)	Sends the request code from the certification ECU and forms the vehicle interior detection area.
Indoor No. 3 electrical key antenna assembly (inside luggage)	Sends the request code from the certification ECU and forms the luggage compartment interior detection area.
Electrical key antenna (outside luggage)	Sends the request code from the certification ECU and forms the luggage compartment exterior detection area.
Back door electrical key switch	Sends switch operation signals to the certification ECU.
Door control receiver	Receives the smart access system with push-button start code/wireless code sent from the key and sends it to the certification ECU.
Turn signal flasher assembly (flasher relay)	Blinks the hazard warning lights when performing answer-back in accordance with commands from the certification ECU sent through the main body ECU (multiplex network body ECU) via CAN communication.
Wireless door lock buzzer	Sounds when performing answer-back or when warning functions operate in accordance with certification ECU control.
Electrical key	Sends the ID code upon receiving a request signal.
Certification ECU	Sends request codes to each electrical key antenna. Distinguishes and verifies the ID code from the key and sends signals to each ECU in response to operated functions (controls entire system). Performs encryption code communication with the ID code box when ignition operations are performed.