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

Toyota 4Runner Service Manual / Vehicle Exterior / Window / Glass / Power Window Control System / Front Passenger Side Power Window Auto Up / Down Function does not Operate with Front Passenger Side Power Window 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 power window regulator switch has a malfunction.
The Hall IC in the power window regulator motor has a malfunction.
There is an open or short in the wiring between the power window regulator switch and power window regulator motor.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

HINT:

Since the power window control system has functions that use LIN communication, first confirm that there is no malfunction in the communication system by inspecting the LIN communication functions in accordance with the "How to Proceed with Troubleshooting" procedures. Then, conduct the following inspection procedure.

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

GO TO DTC B2311

GO TO DTC B2312

GO TO DTC B2313

2.	CHECK MANUAL UP/DOWN FUNCTION (POWER WINDOW REGULATOR SWITCH)

(a) Check that the manual up/down function using the front power window regulator switch can operate the front power window (See page ).

OK:

Front passenger side door power window moves.

GO TO "Front Passenger Side Power Window does not Operate with Front Passenger Side Power Window Switch"

3.	READ VALUE USING TECHSTREAM (POWER WINDOW REGULATOR SWITCH)

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

P-Door Motor

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

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

P Door P/W Auto SW

Front passenger side power window auto up/down signal / ON or OFF

ON: Front passenger side power window auto up/down switch operated

OFF: Front passenger side power window regulator switch not operated

OK:

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

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

4.	INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY

(a) Remove the power window regulator switch (See page ).

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Switch Condition	Specified Condition
8 (AUTO) - 1 (GND)	Auto up/down operation	Below 1 Ω
8 (AUTO) - 1 (GND)	Not operated	10 kΩ or higher

REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY

5.	CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR SWITCH - FRONT POWER WINDOW REGULATOR MOTOR RH AND BODY GROUND)

(a) Disconnect the g1 power window regulator switch connector.

(b) Disconnect the H2 power window regulator motor connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
g1-8 (AUTO) - H2-4 (AUTO)	Always	Below 1 Ω
g1-1 (GND) - Body ground	Always	Below 1 Ω
g1-8 (AUTO) - Body ground	Always	10 kΩ or higher

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

REPAIR OR REPLACE HARNESS OR CONNECTOR

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