April 5, 2026: LEMON Manuals is launched! Read the announcement.

System Diagram

Fig 1: Power Window Control System Diagram (1 of 2)

GTY126907

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Power Window Control System Diagram (2 of 2)

GTY136292

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

COMMUNICATION TABLE

Transmitting ECU	Receiving ECU	Signal	Communication Method
Multiplex network master switch assembly	Power window regulator motor assembly (for driver side)	Power window auto up and down signal	LIN
	Power window regulator motor assembly (for front passenger side) Power window regulator motor assembly (for rear LH side) Power window regulator motor assembly (for rear RH side)	Power window remote up and down signal	LIN
	Power window regulator motor assembly (for driver side) Power window regulator motor assembly (for front passenger side) Power window regulator motor assembly (for rear LH side) Power window regulator motor assembly (for rear RH side)	Power window operation permission signal Key-linked power window up and down signal Wireless power window down signal	LIN
Power window regulator motor assembly (for driver side) Power window regulator motor assembly (for front passenger side) Power window regulator motor assembly (for rear LH side) Power window regulator motor assembly (for rear RH side)	Multiplex network master switch assembly	Initialization status signal Power window up/down switch signal Window position signal Power window operation signal	LIN
Main body ECU RH (Cowl side junction block RH)	Multiplex network master switch assembly	Door courtesy light switch signal Engine switch position signal	BEAN
Certification ECU (Smart key ECU assembly)	Multiplex network master switch assembly	Wireless power window down signal	BEAN