Key-OFF Operation Function Operates even if Operating Conditions are not Satisfied

WINDSHIELD / WINDOW GLASS: POWER WINDOW CONTROL SYSTEM (w/o Jam Protection Function): Key-off Operation Function Operates even if Operating Conditions are not Satisfied
- Key-off Operation Function Operates even if Operating Conditions are not Satisfied

DESCRIPTION

* When the front doors are closed and the ignition switch is turned from ON to OFF, each power window regulator motor can control its power window operation for approximately 43 +/-1.5 seconds by receiving operation permission signals from the main body ECU. However, when approximately 43 +/-1.5 seconds have elapsed, or the driver side door or front passenger side door is opened within approximately 43 +/-1.5 seconds after turning the ignition switch OFF, the power window regulator motor stops operating.

* During the AUTO DOWN function operation, when 43 +/-1.5 seconds have passed and the key-off operation is prohibited, the window operation stops immediately.

* The front passenger side power window and rear power windows*1, *2 cannot be operated when the window lock switch is pressed.

* *1: for Double Cab

* *2: for CrewMax

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK POWER WINDOW OPERATION FUNCTION AFTER IGNITION SWITCH OFF

(a) Check the power window operation function after the ignition switch is turned OFF.

Result:





B -- REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)
A -- Continue to next step.

2. READ VALUE USING TECHSTREAM (DOOR COURTESY SWITCH)

(a) Use the Data List to check if the main body ECU is functioning properly.

Main Body:





OK:

Tester display changes normally when door courtesy switch is operated.

NG -- GO TO LIGHTING SYSTEM How To Proceed With Troubleshooting

OK -- REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)