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:

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE BLOWER ASSEMBLY (a) Remove the bolt. (b) Detach the 2 claws and remove the blower unit assembly. 2. REMOVE DEFROSTER NOZZLE ASSEMBLY (a) Detach the 6 claws an ...

Installation
INSTALLATION CAUTION / NOTICE / HINT HINT: A bolt without a torque specification is shown in the standard bolt chart (See page ). PROCEDURE 1. INSTALL REAR CONSOLE BOX ASSEMBLY (a) Connect each connector. (b) Attach the 2 guides. (c) Install the rea ...