Toyota 4Runner: System Diagram

Toyota 4Runner Service Manual / Vehicle Interior / Door Lock / Wireless Door Lock Control System(w/ Smart Key System) / System Diagram

SYSTEM DIAGRAM

Communication Table

Sender	Receiver	Signal	Line
Certification ECU	Main body ECU	Door unlock standby control signal Door lock/unlock output request signal Wireless door lock buzzer sound request signal	CAN
Main body ECU	Certification ECU	Door courtesy light switch signal Door lock position signal	CAN
Multiplex network door ECU (back door P/W)	Main body ECU	Back door courtesy light switch signal	LIN

System Description

SYSTEM DESCRIPTION 1. WIRELESS DOOR LOCK CONTROL SYSTEM DESCRIPTION (a) This system locks/unlocks the doors remotely. The wireless door lock control system has the following features: The ...

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: The wireless door lock control system troubleshooting procedures are based on the premise that the power door lock control system is operating normally. ...

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Remote Up / Down Function does not Operate
DESCRIPTION When the ignition switch is ON and the window lock switch is off, the multiplex network master switch sends remote up/down signals to each power window regulator motor via the LIN communication line. PROCEDURE 1. CHECK ...