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

WINDSHIELD / WINDOWGLASS: 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 (instrument panel J/B).

* 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. CHECK MANUAL UP / DOWN FUNCTION

(a) Check that the manual up/down function using the power window regulator master switch assembly and power window regulator switch assembly can operate all the power windows Operation Check.

OK:

Manual up/down function is normal.

NG -- GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table) Problem Symptoms Table
OK -- Continue to next step.

2. CHECK REMOTE UP / DOWN FUNCTION

(a) Check that the remote up/down function using the power window regulator master switch assembly operates the power windows Operation Check.

OK:

Remote up/down function is normal.

NG -- GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table) Problem Symptoms Table
OK -- Continue to next step.

3. CHECK OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF

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

Result:





HINT
*: Replace the power window regulator motor assembly for the window that still operates when more than 45 seconds have elapsed after the ignition switch was turned off.

C -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (APPLICABLE LOCATION) Removal

B -- REPLACE MAIN BODY ECU (INSTRUMENT PANEL J/B)
A -- Continue to next step.

4. 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 (Instrument Panel J/B))





OK:

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

NG -- GO TO LIGHTING SYSTEM (Proceed to Door Courtesy Light Switch Circuit) Door Courtesy Switch Circuit

OK -- REPLACE MAIN BODY ECU (INSTRUMENT PANEL J/B)