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Home >> Lexus >> 2008 >> LS 600hL >> Repair and Diagnosis >> Body & Frame >> Windows >> Windshield/WINDOWGLASS >> Power Window Control System >> Rear Power Window LH Auto Up / Down Function does not Operate with Rear Power Window Switch LH >> Inspection Procedure
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Inspection Procedure

  1. CHECK FOR DTC 
    1. Check for DTCs.

    Result: 

    RESULT REFERENCE

    Result Proceed to
    DTC is not output A
    B2311 is output B
    B2312 is output C
    B2313 is output D
    LIN communication system DTC output reoccur E

    B: GO TO DTC B2311  (see DTC B2311 POWER WINDOW MOTOR MALFUNCTION )

    C: GO TO DTC B2312  (see DTC B2312 POWER WINDOW SWITCH MALFUNCTION )

    D: GO TO DTC B2313  (see DTC B2313 GLASS POSITION INITIALIZATION INCOMPLETE )

    E: GO TO LIN COMMUNICATION SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

    A: Go to Next Step 

  2. CHECK MANUAL UP / DOWN FUNCTION 
    1. Check that the manual UP/DOWN function using the power window regulator switch can operate the driver door power window

    OK: Manual UP/DOWN function operates normally. 

    NG: OTHER PROBLEM  (see REAR POWER WINDOW LH DOES NOT OPERATE WITH REAR POWER WINDOW SWITCH LH )

    OK: Go to Next Step 

  3. READ VALUE USING INTELLIGENT TESTER OR TECHSTREAM (REAR MOTOR LH) 
    1. Use the Data List to check if the power window regulator motor is functioning properly.
      1. Intelligent tester

        RL DOOR MOTOR: 

        DATA LIST - RL DOOR MOTOR

        Tester Display Measurement Item/Range Normal Condition
        RL P/W AUTO SW Rear power window LH auto UP/DOWN switch signal / ON or OFF ON Rear power window LH auto UP/ DOWN switch operated
        OFF Rear power window LH switch not operated
      2. Techstream

      RL-Door Motor: 

      DATA LIST - RL DOOR MOTOR

      Tester Display Measurement Item/Range Normal Condition
      RL Door P/W Auto SW Rear power window LH auto UP/DOWN switch signal / ON or OFF ON Rear power window LH auto UP/ DOWN switch operated
      OFF Rear power window LH switch not operated

    OK: Tester display changes normally when rear power window switch LH is operated. 

    NG:  Go to step  4

    OK: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH  (see REMOVAL )

  4. CHECK HARNESS AND CONNECTOR (REAR SWITCH LH - REAR MOTOR LH) 
    1. Disconnect the O18 switch connector.
    2. Disconnect the O19 motor connector.
    3. Measure the resistance according to the value (s) in the table below

    Standard resistance 

    STANDARD RESISTANCE SPECIFICATION

    Tester Connection Condition Specified Condition
    O18-4 (AUTO) - O19-4 (AUTO) Always Below 1 Ω
    O18-4 (AUTO) or O19-4 (AUTO) - Body ground Always 10 kΩ or higher
    Fig 1: Identifying O18 Switch And O19 Motor Connectors
    G05776667Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: Go to Next Step 

  5. INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY 
    1. Remove the switch (see REMOVAL ).
    2. Measure the resistance according to the value (s) in the table below

    Standard resistance 

    STANDARD RESISTANCE SPECIFICATION

    Tester Connection Switch Condition Specified Condition
    O18-4 (AUTO) - O18-5 (GND) AUTO UP/DOWN operation Below 1 Ω
    Fig 2: Identifying O18 Rear Power Window Regulator Switch Connector
    G04952133Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY  (see REMOVAL )

    OK: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH  (see REMOVAL )

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