WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: DESCRIPTION (2008 Sequoia)

Last Modified: 11-29-2007		1.6 J
Service Category: Vehicle Exterior	Section: Window/Glass
Model Year: 2008	Model: Sequoia	Doc ID: RM0000027QQ00KX
Title: WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: DESCRIPTION (2008 Sequoia)

Remote Up / Down Function does not Operate

DESCRIPTION

Front passenger side:

When the ignition switch is ON and the window lock switch is OFF, the multiplex network master switch sends remote UP/DOWN signals to the front power window regulator motor RH via the LIN communication line.

Rear side:

With the ignition switch ON, the power window regulator master switch transmits remote switch signals to the regulator switches of the rear door power windows. Then, each regulator switch drives its respective power window regulator motor.

HINT:

The rear power windows cannot be operated when the window lock switch of the power window regulator master switch is pressed.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1.	CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (WINDOW LOCK SWITCH)

(a) Turn the window lock switch OFF and operate the switches on the power window regulator master switch. Check that the remote UP/DOWN function operates normally.

OK:

Remote UP/DOWN function operates normally.

Result:

Result	Proceed to
OK	A
NG (for Front RH side)	B
NG (for Rear side)	C

2.	CHECK LIN COMMUNICATION SYSTEM

(a) Check for LIN communication system DTCs related to the power window control system .

OK:

LIN communication system DTCs are not output.

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

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

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

(e) According to the display on the Techstream, read the Data List.

Master Switch

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
P Door P/W Auto SW	Front passenger side power window remote auto UP/DOWN switch signal / ON or OFF	ON: Front passenger side power window remote auto UP/DOWN switch on multiplex network master switch operated OFF: Front passenger side power window switch on multiplex network master switch not operated	-
P Door P/W Up SW	Front passenger side power window remote manual UP switch signal / ON or OFF	ON: Front passenger side power window remote manual UP switch on multiplex network master switch operated OFF: Front passenger side power window switch on multiplex network master switch not operated	-
P Door P/W Down SW	Front passenger side power window remote manual DOWN switch signal / ON or OFF	ON: Front passenger side power window remote manual DOWN switch on multiplex network master switch operated OFF: Front passenger side power window switch on the multiplex network master switch not operated	-

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

P Door P/W Auto SW

Front passenger side power window remote auto UP/DOWN switch signal / ON or OFF

ON: Front passenger side power window remote auto UP/DOWN switch on multiplex network master switch operated

OFF: Front passenger side power window switch on multiplex network master switch not operated

P Door P/W Up SW

Front passenger side power window remote manual UP switch signal / ON or OFF

ON: Front passenger side power window remote manual UP switch on multiplex network master switch operated

OFF: Front passenger side power window switch on multiplex network master switch not operated

P Door P/W Down SW

Front passenger side power window remote manual DOWN switch signal / ON or OFF

ON: Front passenger side power window remote manual DOWN switch on multiplex network master switch operated

OFF: Front passenger side power window switch on the multiplex network master switch not operated

OK:

The Techstream display changes normally when master switch is operated.