Toyota Yaris: Power Window Control System / Remote Up / Down Function does not Operate

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Vehicle Exterior / Window / Glass / Power Window Control System / Remote Up / Down Function does not Operate

DESCRIPTION

When the ignition switch is ON, the multiplex network master switch assembly sends remote up and down signals to each door window regulator motor assembly via LIN communication.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

The power window control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication system is functioning properly.
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If a power window regulator motor assembly has been replaced with a new one, initialize the power window control system.
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PROCEDURE

1.	READ VALUE USING GTS (MAIN BODY)

(a) Read the Data List according to the display on the GTS.

Body Electrical > Main Body > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Communication P-Door Motor	Connection status between power window regulator motor assembly (for front passenger door) and main body ECU (multiplex network body ECU)	STOP or OK	STOP: Communication stopped OK: Normal communication	-
Communication Master Switch	Connection status between multiplex network master switch assembly and main body ECU (multiplex network body ECU)	STOP or OK	STOP: Communication stopped OK: Normal communication	-

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Communication P-Door Motor

Connection status between power window regulator motor assembly (for front passenger door) and main body ECU (multiplex network body ECU)

STOP or OK

STOP: Communication stopped

OK: Normal communication

Communication Master Switch

Connection status between multiplex network master switch assembly and main body ECU (multiplex network body ECU)

STOP or OK

STOP: Communication stopped

OK: Normal communication

Body Electrical > Main Body > Data List

Tester Display
Communication P-Door Motor
Communication Master Switch

OK:

OK is displayed for each Data List item above.

GO TO LIN COMMUNICATION SYSTEM (Proceed to How to Proceed with Troubleshooting)

2.	READ VALUE USING GTS (MASTER SWITCH)

(a) Read the Data List according to the display on the GTS.

Body Electrical > Master Switch > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
P Door P/W Auto SW	Front passenger door power window auto switch signal	OFF or ON	OFF: Front passenger door power window auto up or auto down switch not being operated ON: Front passenger door power window auto up or auto down switch being operated	-
P Door P/W Up SW	Front passenger door power window manual up switch signal	OFF or ON	OFF: Front passenger door power window manual up switch not being operated ON: Front passenger door power window manual up switch being operated	-
P Door P/W Down SW	Front passenger door power window manual down switch signal	OFF or ON	OFF: Front passenger door power window manual down switch not being operated ON: Front passenger door power window manual down switch being operated	-
Window Lock Switch Status	Window lock switch signal	OFF or ON	OFF: Window lock switch off (not pushed in) ON: Window lock switch on (pushed in)	-

Body Electrical > Master Switch > Data List

Tester Display
P Door P/W Auto SW
P Door P/W Up SW
P Door P/W Down SW
Window Lock Switch Status

OK:

On the GTS screen, ON or OFF is displayed accordingly.

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Front Passenger Door)

REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

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