Toyota 4Runner: System Diagram

Toyota 4Runner Service Manual / Vehicle Exterior / Window / Glass / Window Defogger System / System Diagram

SYSTEM DIAGRAM

Communication Table

Transmitter	Receiver	Signal	Line
Heater control assembly	Air conditioning amplifier assembly	Defogger switch signal	LIN
Multiplex network door ECU (Back door P/W)	Main body ECU (Multiplex network body ECU)	Back door window position signal	LIN
Back door power window regulator motor	Multiplex network door ECU (Back door P/W)	Back door window position signal	LIN
Main body ECU (Multiplex network body ECU)	Air conditioning amplifier assembly	Back door window position signal	CAN

System Description

SYSTEM DESCRIPTION 1. WINDOW DEFOGGER SYSTEM DESCRIPTION The thin heater wires of the defogger system are attached to the rear window and defog the rear window surface quickly. The system only ope ...

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Inspect the window defogger system after confirming that the back door power window system of the power window control system is operating normally. ...

Other materials about Toyota 4Runner:

Removal
REMOVAL PROCEDURE 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page ). 2. REMOVE FRONT WHEELS 3. REMOVE NO. 1 ENGINE UNDER COVER SUB-AS ...

Door Control Transmitter(w/ Smart Key System)
Components COMPONENTS ILLUSTRATION Removal REMOVAL CAUTION / NOTICE / HINT NOTICE: Take extra care when handling these precision electronic components. PROCEDURE 1. REMOVE TRANSMITTER BATTERY (a) Push the release hook knob and extrac ...