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 43 seconds after the power switch is turned from on (IG) to off by receiving operation permission signals from the main body ECU (multiplex network body ECU).

* However, when approximately 43 seconds have elapsed, or the driver side door or front passenger side door is opened within approximately 43 seconds of the power switch being turned off, the power window regulator motor assembly stops operating.

* During an auto operation, when 43 seconds have passed and key-off operation is prohibited, the window operation stops immediately.

INSPECTION PROCEDURE

NOTICE:
The power window control system uses a 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 and down functions using the multiplex network master switch assembly and power window regulator switch assembly can operate all the power windows Operation Check.

OK:

Manual up and down functions are 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 and down functions using the multiplex network master switch assembly can operate all the power windows Operation Check.

OK:

Remote up and down functions are normal.

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

3. CHECK OPERATION FUNCTION AFTER POWER SWITCH IS TURNED OFF

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

Result:





D -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Side or Rear RH Side) Removal

C -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side or Front Passenger Side) Removal

B -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Removal
A -- Continue to next step.

4. READ VALUE USING TECHSTREAM (Main Body)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(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 (Multiplex Network Body ECU))





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 (MULTIPLEX NETWORK BODY ECU) Removal