Key-Off Operation Function Operates Even If Operating Conditions Are Not Satisfied

WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: 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, each power window regulator motor assembly can control its power window operation for approximately 45 seconds after the ignition switch is turned from ON to off by receiving operation permission signals from the main body ECU (driver side junction block assembly).
- However, when approximately 45 seconds have elapsed, or the driver side door or front passenger side door is opened within approximately 45 seconds of the ignition switch being turned off, the power window regulator motor assembly stops operating.
- During an auto operation, when 45 seconds have passed and key-off operation is prohibited, the window operation stops immediately.

INSPECTION PROCEDURE
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 How To Proceed With Troubleshooting. Troubleshoot the power window control system after confirming that the communication system is functioning properly.

PROCEDURE

1. READ VALUE USING TECHSTREAM (Main Body)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Data List.
(e) Read the Data List according to the display on the Techstream.

Main Body (Main Body ECU (Driver Side Junction Block Assembly))





OK:
On the Techstream screen, OK is displayed.

NG -- GO TO LIN COMMUNICATION SYSTEM (Proceed to How to Proceed with Troubleshooting)
OK -- Continue to next step.

2. CHECK OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF
(a) Check the power window operation function after the ignition switch is turned off.
Result:





C -- REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
B -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (KEY-OFF OPERATION FUNCTIONING WINDOW)
A -- Continue to next step.

3. READ VALUE USING TECHSTREAM (Main Body)
(a) Enter the following menus: Body Electrical / Main Body / Data List.
(b) Read the Data List according to the display on the Techstream.

Main Body (Main Body ECU (Driver Side Junction Block Assembly))





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

NG -- GO TO LIGHTING SYSTEM (Proceed to Door Courtesy Light Switch Circuit)
OK -- REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
4. REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (KEY-OFF OPERATION FUNCTIONING WINDOW)
(a) Replace the power window regulator motor assembly Removal for Front Door, Removal for Rear Door) for the window that still operates when more than 45 seconds have elapsed after the ignition switch was turned off.
NEXT -- Continue to next step.

5. PERFORM INITIALIZATION (APPLICABLE LOCATION)
(a) Initialize the power window regulator motor assembly Programming and Relearning.
NEXT -- Continue to next step.

6. CHECK OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF
(a) Check the power window operation function after the ignition switch is turned off.
OK:
The power window does not operate when more than 45 seconds have elapsed after the ignition switch was turned off.

NG -- REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
OK -- END (POWER WINDOW REGULATOR MOTOR ASSEMBLY WAS DEFECTIVE)