WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 Sequoia)

Last Modified: 11-29-2007		1.6 D
Service Category: Vehicle Exterior	Section: Window/Glass
Model Year: 2008	Model: Sequoia	Doc ID: RM000000PY2016X
Title: WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 Sequoia)

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

Use these procedures to troubleshoot the power window control system.
*: Use the Techstream.

1.	VEHICLE BROUGHT TO WORKSHOP

2.	INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

3.	CHECK FOR DTC*

(a) Check for DTCs and make a note of any codes that are output.

(b) Clear the DTCs.

(c) Recheck for DTCs. Based on the DTCs output in the first step, try to force output of the same DTC by simulating the symptoms indicated by the DTC.

Result

Result	Proceed to
No DTCs output	A
DTCs output	B
CAN communication system DTCs are output	C
LIN communication system DTCs are output	D

GO TO DIAGNOSIS TROUBLE CODE CHART

GO TO CAN COMMUNICATION SYSTEM

GO TO LIN COMMUNICATION SYSTEM

4.	PROBLEM SYMPTOMS TABLE

(a) Refer to the Problem Symptoms Table .

Result

Result	Proceed to
Fault not listed in Problem Symptoms Table	A
Fault listed in Problem Symptoms Table	B

GO TO STEP 6

5.	OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check .

(b) Terminals of ECU .

6.	REPAIR OR REPLACEMENT

Result

Result	Proceed to
Door window regulator and power window regulator motor assembly is replaced or removed/installed.	A
Door window regulator and power window regulator motor assembly is not replaced or removed/installed.	B

GO TO STEP 8

7.	RESET POWER WINDOW REGULATOR MOTOR

(a) If the power window regulator master switch AUTO light is blinking, reset the power window regulator motor .

8.	CONFIRMATION TEST

END