Toyota Yaris: Power Mirror Control System / System Description

Toyota Yaris XP210 (2020-2023) Reapir and Service Manual / Vehicle Exterior / Mirror (ext) / Power Mirror Control System / System Description

SYSTEM DESCRIPTION

POWER MIRROR CONTROL SYSTEM DESCRIPTION

(a) This system has the following functions: electrical remote control mirror function, power retract mirror function, auto power retract mirror function and mirror heater function.

FUNCTION OF MAIN COMPONENT

Component		Function
Outer rear view mirror assembly	Vertical mirror motor	Receives signals from the outer mirror switch assembly and adjusts the mirror surface position vertically.
	Horizontal mirror motor	Receives signals from the outer mirror switch assembly and adjusts the mirror surface position horizontally.
	Power retract mirror motor	Receives a signal from outer mirror switch assembly, and retracts and returns the outer rear view mirror assemblies.
	Mirror heater	When the mirror heater switch (rear window defogger switch) on the air conditioning control assembly is operated, the air conditioning amplifier assembly detects the switch operation via LIN communication. The air conditioning amplifier assembly operates DEF relay and mirror heaters in accordance with the switch operation.
Outer mirror switch assembly	Mirror select and surface adjust switch	Consists of R and L switches. One must be chosen to operate the outer mirror switch assembly. After selecting the R or L switch, the right, left, up and down control switches can be operated to change the angle of the mirror surface.
Outer mirror switch assembly	Auto retractable mirror switch	Built into the outer mirror switch assembly and sends the auto retractable outer mirror switch signal to the main body ECU (multiplex network body ECU).

SYSTEM OPERATION

(a) The power mirror control system has the following features:

Function	Outline
Electrical remote control mirror function	When the outer mirror switch assembly is operated, this function moves the mirror surface vertically or horizontally to enable the driver to attain an optimal mirror angle. Turning the mirror select and surface adjust switch to the R position operates the right side mirror, and turning the mirror select and surface adjust switch to the L position operates the left side mirror.
Power retract mirror function	Retracts and returns the outer rear view mirror assemblies when the retractable outer mirror switch is operated.
Auto power retract mirror function	Retracts and returns each outer rear view mirror assembly together with the following operations while the auto retractable outer mirror switch is on. Manual lock/unlock Key-linked lock/unlock Wireless door lock/unlock Wireless 30 seconds auto lock Entry lock/unlock Smart 30 seconds auto lock
Mirror heater function	Turns on the mirror heaters when the rear window defogger is turned on. The rear window defogger and mirror heaters automatically turn off 15 minutes after the rear window defogger and mirror heaters were activated.

System Diagram

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How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the power mirror control system. *: Use the GTS. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2...

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