POWER WINDOW CONTROL SYSTEM Driver Side Power Window does not Operate with Power Window Master Switch

DESCRIPTION

When the power switch is on (IG), the power window regulator motor assembly (for driver door) is operated by the multiplex network master switch assembly. The power window regulator motor assembly (for driver door) has motor, regulator and ECU functions.

WIRING DIAGRAM

A0004QWE28

CAUTION / NOTICE / HINT

Note


  • The power window control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting Click here. Troubleshoot the power window control system after confirming that the communication system is functioning properly.

  • If the power window regulator motor assembly (for driver door) has been replaced with a new one, initialize the power window control system Click here.

  • If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.

PROCEDURE


  1. READ VALUE USING GTS (MAIN BODY)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Main Body / Data List.

    5. Read the Data List according to the display on the GTS.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Communication D-Door Motor Connection status between power window regulator motor assembly (for driver door) and main body ECU (multiplex network body ECU) / OK or STOP

      OK: Normal communication

      STOP: Communication stopped

      		 -
      Communication Master SW Connection status between multiplex network master switch assembly and main body ECU (multiplex network body ECU) / OK or STOP

      OK: Normal communication

      STOP: Communication stopped

      		 -
      OK
      On the GTS screen, OK is displayed.

    NG

    GO TO LIN COMMUNICATION SYSTEM (Proceed to How to Proceed with Troubleshooting) Click here

    OK

  2. READ VALUE USING GTS (D-DOOR MOTOR)


    1. Enter the following menus: Body Electrical / D-Door Motor / Data List.

    2. Read the Data List according to the display on the GTS.

      D-Door Motor
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      D Door P/W Up SW Driver door power window manual up switch signal / ON or OFF

      ON: Driver door power window manual up switch being operated

      OFF: Driver door power window manual up switch not being operated

      		 -
      D Door P/W Down SW Driver door power window manual down switch signal / ON or OFF

      ON: Driver door power window manual down switch being operated

      OFF: Driver door power window manual down switch not being operated

      		 -
      OK
      On the GTS screen, ON or OFF is displayed accordingly.

    NG

    CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH - POWER WINDOW REGULATOR MOTOR (FOR DRIVER DOOR)) Click here

    OK

  3. PERFORM ACTIVE TEST USING GTS (D-DOOR MOTOR)


    1. Enter the following menus: Body Electrical / D-Door Motor / Active Test.

    2. Perform the Active Test according to the display on the GTS.

      CAUTION:

      Be careful to avoid injuries as this test causes vehicle parts to move. During the Active Test, the jam protection function will not operate.

      D-Door Motor
      Tester Display Test Part Control Range Diagnostic Note
      Power Window Power window OFF / UP / DOWN -
      OK
      Driver door power window operates normally.

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR DRIVER DOOR) Click here

  4. CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH - POWER WINDOW REGULATOR MOTOR (FOR DRIVER DOOR))


    1. Disconnect the M4*1 or L13*2 multiplex network master switch assembly connector.

    2. Disconnect the M8*1 or L9*2 power window regulator motor assembly (for driver door) connector.


      • *1: for LHD

      • *2: for RHD

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      M4-20 (UP) - M8-10 (UP) Always Below 1 Ω
      M4-15 (DOWN) - M8-7 (DOWN) Always Below 1 Ω
      M4-20 (UP) - Body ground Always 10 kΩ or higher
      M4-15 (DOWN) - Body ground Always 10 kΩ or higher
      M8-10 (UP) - Body ground Always 10 kΩ or higher
      M8-7 (DOWN) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      L13-20 (UP) - L9-10 (UP) Always Below 1 Ω
      L13-15 (DOWN) - L9-7 (DOWN) Always Below 1 Ω
      L13-20 (UP) - Body ground Always 10 kΩ or higher
      L13-15 (DOWN) - Body ground Always 10 kΩ or higher
      L9-10 (UP) - Body ground Always 10 kΩ or higher
      L9-7 (DOWN) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY


    1. Replace the multiplex network master switch assembly Click here.


    NEXT

  6. CHECK MANUAL UP / DOWN FUNCTION (FOR DRIVER DOOR)


    1. Check that the driver door power window moves when the manual up and down functions of the multiplex network master switch assembly are operated Click here.

      OK
      Driver door manual up and down functions are normal.

    OK

    END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR DRIVER DOOR) Click here