Toyota Venza: Rear Power Window LH Auto Up / Down Function does not Operate with Rear Power Window Switch LH

Toyota Venza Service Manual / Window / Glass / Power Window Control System / Rear Power Window LH Auto Up / Down Function does not Operate with Rear Power Window Switch LH

DESCRIPTION

If the manual up/down function can be performed but the auto up/down function cannot, the fail-safe mode may be functioning.

If the power window initialization (See page ) has not been performed, the auto up/down function
will not operate.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

The power window control system uses a multiplex communication system (LIN communication system). Inspect the communication function by following How to Proceed with Troubleshooting (See page ). Troubleshoot the power window control
system after confirming that the communication system is functioning properly.
When the power window regulator motor assembly (for rear LH side) is reinstalled or replaced, the power window control system must be initialized.
After a door glass or a door glass run has been replaced, the jam protection function may operate unexpectedly when the auto up function is used. In such cases, the auto up function can be reinitialized by repeating the following operations at least 5 times:
1. Close the power window by fully pulling up the power window regulator switch assembly (for rear LH side) and holding it at the auto up position.
2. Open the power window by fully pushing down the power window regulator switch assembly (for rear LH side).
When the ECU determines that the power window regulator motor assembly (for rear LH side) has a malfunction, DTC B2311 is set.

PROCEDURE

1.	READ VALUE USING TECHSTREAM (RL-Door Motor)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

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

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

RL-Door Motor (Power Window Regulator Motor Assembly (for Rear LH Side))

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

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

RL Door P/W Auto SW

Rear LH side power window auto switch signal / ON or OFF

ON: Rear LH power window auto switch operated

OFF: Rear LH power window auto switch not operated

OK:

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

GO TO STEP 4

2.	PERFORM INITIALIZATION (for Rear LH Side)

(a) Initialize the power window regulator motor assembly (for rear LH side) (See page ).

3.	CHECK POWER WINDOW CONTROL SYSTEM (AUTO UP/DOWN FUNCTION)

(a) Check that the rear LH side door power window moves when the auto up/down function of the power window regulator switch assembly (for rear LH side) is operated (See page ).

OK:

Rear LH side auto up/down function is normal.

END (PROBLEM DUE TO INITIALIZATION FAILURE)

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Side)

4.	INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Rear LH Side)

(a) Remove the power window regulator switch assembly (for rear LH side) (See page ).

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
8 (AUTO) - 1 (GND)	Auto up or auto down position	Below 1 Ω

Text in Illustration

*1	Component without harness connected (Power Window Regulator Switch Assembly (for Rear LH Side))

REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Rear LH Side)

5.	CHECK HARNESS AND CONNECTOR (REAR LH SIDE SWITCH - REAR LH SIDE MOTOR)

(a) Disconnect the power window regulator motor assembly (for rear LH side) connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
K1-8 (AUTO) - K2-4 (AUTO)	Always	Below 1 Ω
K1-8 (AUTO) - Body ground	Always	10 kΩ or higher

Text in Illustration

Front view of wire harness connector

(to Power Window Regulator Switch Assembly (for Rear LH Side))

Front view of wire harness connector

(to Power Window Regulator Motor Assembly (for Rear LH Side))

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Side)

REPAIR OR REPLACE HARNESS OR CONNECTOR

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