Toyota 4Runner: Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Master Switch

Toyota 4Runner Service Manual / Vehicle Exterior / Window / Glass / Power Window Control System / Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Master Switch

DESCRIPTION

If the auto up/down function does not operate, the cause may be one or more of the following:

The ECU in the power window regulator motor determines that the power window regulator motor has not been initialized.
The master switch has a malfunction.
The Hall IC in the front power window regulator motor has a malfunction.

PROCEDURE

1.	CHECK FOR DTC

(a) Clear the DTCs (See page ).

(b) Check for DTCs (See page ).

Result

Result	Proceed to
DTC is not output	A
DTC B2311 is output	B
DTC B2312 is output	C
DTC B2313 is output	D
LIN communication system DTCs are output	E

GO TO DTC B2311

GO TO DTC B2312

GO TO DTC B2313

GO TO LIN COMMUNICATION SYSTEM

2.	CHECK MANUAL UP/DOWN FUNCTION

(a) Check that the front power window moves when the manual up/down function of the multiplex network master switch is operated (See page ).

OK:

Front power window moves.

GO TO "Driver Side Power Window does not Operate with Power Window Master Switch"

3.	READ VALUE USING TECHSTREAM (MULTIPLEX NETWORK MASTER SWITCH)

(a) Use the Data List to check if the multiplex network master switch is functioning properly (See page ).

Master Switch

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
D Door P/W Auto SW	Driver side power window auto up/down signal / ON or OFF	ON: Driver side power window auto up/down switch on power window regulator master switch operated OFF: Driver side power window switch on power window regulator master switch not operated	-

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

D Door P/W Auto SW

Driver side power window auto up/down signal / ON or OFF

ON: Driver side power window auto up/down switch on power window regulator master switch operated

OFF: Driver side power window switch on power window regulator master switch not operated

OK:

On tester screen, item changes between ON and OFF according to above chart.

REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

4.	READ VALUE USING TECHSTREAM (FRONT DOOR WINDOW REGULATORASSEMBLY LH)

(a) Use the Data List to check if the front power window regulator is functioning properly (See page ).

Master Switch

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
D Door P/W Auto SW	Driver side power window auto up/down signal / ON or OFF	ON: Driver side power window auto up/down switch operated OFF: Driver side power window switch not operated	-

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

D Door P/W Auto SW

Driver side power window auto up/down signal / ON or OFF

ON: Driver side power window auto up/down switch operated

OFF: Driver side power window switch not operated

OK:

On tester screen, item changes between ON and OFF according to above chart.

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

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