POWER WINDOW CONTROL SYSTEM Rear Power Window LH Auto Up / Down Function does not Operate with Rear Power Window Switch LH

DESCRIPTION

If the manual up and down functions operate normally but the auto up and down functions do not, the fail-safe mode may be functioning.

If power window initialization Click here has not been performed, the auto up and down functions will not operate.

Tech Tips

If the pulse sensor built into the power window regulator motor assembly (for rear LH door) malfunctions, the power window control system enters fail-safe mode. The remote up and down and auto up and down functions cannot be operated during fail-safe mode. However, the power window can be closed by holding the rear power window regulator switch assembly (for LH door) at the auto up position, and opened manually by pushing down the rear power window regulator switch assembly (for LH door).

WIRING DIAGRAM

A0042KQE02

INSPECTION PROCEDURE

Note


  • The power window control system uses a 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 rear LH door) has been replaced with a new one, initialize the power window control system Click here.

PROCEDURE


  1. READ VALUE USING GTS (RL-Door Motor)


    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 / RL-Door Motor / Data List.

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

      RL-Door Motor
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      RL Door P/W Auto SW Rear LH door power window auto switch signal / OFF or ON

      OFF: Rear LH power window auto switch not operated

      ON: Rear LH power window auto switch operated

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

    NG

    INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for LH Door) Click here

    OK

  2. PERFORM INITIALIZATION (for Rear LH Door)


    1. Initialize the power window regulator motor assembly (for rear LH door) Click here.


    NEXT

  3. CHECK POWER WINDOW CONTROL SYSTEM (AUTO UP/DOWN FUNCTION)


    1. Check that the rear LH door power window moves when the auto up and down functions of the rear power window regulator switch assembly (for LH door) are operated Click here.

      OK
      Rear LH door auto up and down functions are normal.

    NG

    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door) Click here

    OK

    END (PROBLEM DUE TO INITIALIZATION FAILURE)

  4. INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for LH Door)


    1. A0042TME31
      Text in Illustration
      *a

      Component without harness connected

      (Rear Power Window Regulator Switch Assembly (for LH Door))

      Remove the rear power window regulator switch assembly (for LH door) Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      8 (AUTO) - 1 (GND) Auto up or auto down position Below 1 Ω

    NG

    REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for LH Door) Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (REAR LH DOOR SWITCH - REAR LH DOOR MOTOR)


    1. Disconnect the Q4 power window regulator motor assembly (for rear LH door) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q2-8 (AUTO) - Q4-4 (AUTO) Always Below 1 Ω
      Q2-8 (AUTO) - Body ground Always 10 kΩ or higher
      Q4-4 (AUTO) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door) Click here