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 driver door has not been opened and fully closed, each door power window regulator motor can control its power window operation for approximately 45 seconds after the ignition switch is turned from the ON position to off (the key is removed) by receiving operation permission signals from the main body ECU. However, when approximately 45 seconds have elapsed, or the driver door or front passenger side door is opened within approximately 45 seconds of the ignition switch being turned off (the key is removed), the power window regulator motor stops operating.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

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

Result





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

2. READ VALUE USING TECHSTREAM (FRONT DOOR COURTESY LIGHT SWITCH)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menu items: 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 Junction Block))





OK:
On the Techstream screen, the item changes between ON and OFF according to the chart above.
NG -- INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (Driver Side)
OK -- REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)
3. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (Driver Side)




(a) Remove the front door courtesy light switch (driver side) Removal.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE DOOR COURTESY LIGHT SWITCH ASSEMBLY (Driver Side)
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH - MAIN BODY ECU)




(a) Disconnect the instrument panel junction block connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)