Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Master Switch

DESCRIPTION

If the manual up and down functions operate normally but the auto up and down functions do not, the power window control system may be in fail-safe mode.

If power window initialization has not been performed, the auto up and down functions will not operate.

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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 the power window regulator motor assembly (for driver door) has been replaced with a new one, initialize the power window control system.

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• Check that power window system customize setting "D Window Auto Up" and "D Window Auto Down" are set to "ON" before performing the following procedure.

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• After the catch protection function has operated, the auto up function will not operate the first time the power window auto up switch is operated. The auto up function will operate normally after the first power window switch operation.

HINT:

If the pulse sensor built into the power window regulator motor assembly (for driver door) is malfunctioning, the power window control system will enter fail-safe mode. The remote up and down and auto up and down functions cannot be operated during fail-safe mode. However, the power window can be closed by holding the multiplex network master switch assembly at the auto up position, and opened manually by pushing down the multiplex network master switch assembly.

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PROCEDURE

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Master switch / Data List.

(e) Read the Data List according to the display on the Techstream.

OK:

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

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REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

OK

(a) Enter the following menus: Body Electrical / D-Door Motor / Data List.

(b) Read the Data List according to the display on the Techstream.

OK:

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

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GO TO STEP 5

OK

(a) Initialize the power window regulator motor assembly (for driver door).

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NEXT

(a) Check that the driver door power window moves when the auto up and down functions of the multiplex network master switch assembly are operated.

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OK:

Driver door auto up and down functions are normal.

OK

END (PROBLEM DUE TO INITIALIZATION FAILURE)

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REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door)

(a) Replace the multiplex network master switch assembly.

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NEXT

(a) Check that the driver door power window moves when the auto up and down functions of the multiplex network master switch assembly are operated.

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OK:

Driver door auto up and down functions are normal.

OK

END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS DEFECTIVE)

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REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door)