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 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 on (IG) 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.
During AUTO function operation, the window operation will continue until complete even if 45 seconds have passed or a door is opened.
NOTICE:
* The power window control system uses a multiplex communication system (LIN). Inspect the communication function by following HOW TO PROCEED WITH TROUBLESHOOTING. Troubleshoot the power window control system after confirming that the communication system is functioning properly.
* The power window control system prohibits the AUTO UP / DOWN function when the jam protection function malfunctions. Therefore, troubleshoot the power window control system after confirming that no diagnostic codes are displayed.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
When using Techstream to troubleshoot the LIN communication line: Connect Techstream to the vehicle, and turn the courtesy light switch on and off at 1.5 second intervals until communication between the tester and vehicle begins.
PROCEDURE
1. READ VALUE ON TECHSTREAM (LIN COMMUNICATION)
(a) Use the Data List to check the function of the power window regulator master switch.
(1) Connect Techstream to the DLC3.
(2) Turn the ignition switch on (IG) and Turn on Techstream.
(3) Select the following menu items: Body / Main Body / Data List / Comm D-Door Mtr.
(4) Read the indication displayed on the tester.
Main Body:
OK:
OK is displayed on Techstream screen.
NG -- GO TO DTC (2321) LIN Communication System
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
B -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side) Removal
A -- Continue to next step.
3. READ VALUE ON TECHSTREAM (DOOR COURTESY LIGHT SWITCH)
(a) Use the Data List to check the driver side door courtesy switch signal.
(1) Connect Techstream to the DLC3.
(2) Turn the ignition switch on (IG) and Turn on Techstream.
(3) Select the following menu items: Body / Main Body / Data List / D Door Courtsey SW.
(4) Read the indication displayed on the tester.
Main Body:
OK:
OK is displayed on Techstream screen.
NG -- INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (Driver Side)
OK -- REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)
4. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (Driver Side)
(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE DOOR COURTESY LIGHT SWITCH ASSEMBLY (Driver Side) Removal
OK -- Continue to next step.
5. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - DOOR COURTESY SWITCH)
(a) Check the harness and connector between the main body ECU and driver side door courtesy switch.
(b) Disconnect the D8 main body ECU connector.
(c) Disconnect the O2 switch connector.
(d) 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)