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

  1. CHECK LIN COMMUNICATION SYSTEM 
    1. Check for LIN communication system DTCs related to the power window control system.

    Result: 

    RESULT REFERENCE

    Result Proceed to
    DTC is not output A
    DTC is output B

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

    A: Go to Next Step 

  2. CHECK FOR DTC (B2312) 
    1. Check if DTC B2312 is output.

    Result: 

    RESULT REFERENCE

    Result Proceed to
    B2312 is not output A
    B2312 is output B

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

    A: Go to Next Step 

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

        RR DOOR MOTOR: 

        DATA LIST - RR DOOR MOTOR

        Tester Display Measurement Item/Range Normal Condition
        RR P/W UP SW Rear power window RH manual UP switch signal / ON or OFF ON Rear power window RH manual UP switch operated
        OFF Rear power window RH switch not operated
        RR P/W DOWN SW Rear power window RH manual DOWN switch signal / ON or OFF ON Rear power window RH manual DOWN switch operated
        OFF Rear power window RH switch not operated
      2. Techstream

      RR-Door Motor: 

      DATA LIST - RR DOOR MOTOR

      Tester Display Measurement Item/Range Normal Condition
      RR Door P/W Up SW Rear power window RH manual UP switch signal / ON or OFF ON Rear power window RH manual UP switch operated
      OFF Rear power window RH switch not operated
      RR Door P/W Down SW Rear power window RH manual DOWN switch signal / ON or OFF ON Rear power window RH manual DOWN switch operated
      OFF Rear power window RH switch not operated

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

    NG:  Go to step  4

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

  4. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU RH - REAR SWITCH RH) 
    1. Disconnect the O2 ECU connector.
    2. Disconnect the O7 switch connector.
    3. Measure the resistance according to the value (s) in the table below

    Standard resistance 

    STANDARD RESISTANCE SPECIFICATION

    Tester Connection Switch Condition Specified Condition
    O2-25 (SGND) - O7-5 (GND) Always Below 1 Ω
    O2-25 (SGND) or O7-5 (GND) - Body ground Always 10 kΩ or higher
    Fig 1: Identifying O2 ECU And O7 Switch Connectors
    G04952102Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to Next Step 

  5. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU RH - REAR MOTOR RH) 
    1. Disconnect the O3 ECU connector.
    2. Disconnect the O8 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
    O3-5 (BDRJ) - O8-2 (B) Always Below 1 Ω
    O3-2 (PWE) - O8-1 (E) Always Below 1 Ω
    O3-5 (BDRJ) or O8-2 (B) - Body ground Always 10 kΩ or higher
    O3-2 (PWE) or O8-1 (E) - Body ground Always 10 kΩ or higher
    Fig 2: Identifying O3 ECU And O8 Motor Connectors
    G05776660Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to Next Step 

  6. CHECK HARNESS AND CONNECTOR (REAR SWITCH RH - REAR MOTOR RH) 
    1. Disconnect the O7 switch connector.
    2. Disconnect the O8 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
    O7-2 (UP) - O8-10 (UP1) Always Below 1 Ω
    O7-10 (DOWN) - O8-7 (DWN1) Always Below 1 Ω
    O7-2 (UP) or O8-10 (UP1) - Body ground Always 10 kΩ or higher
    O7-10 (DOWN) or O8-7 (DWN1) - Body ground Always 10 kΩ or higher
    Fig 3: Identifying O18 Switch And O19 Motor Connectors
    G04952132Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to Next Step 

  7. 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
    O7-2 (UP) - O7-5 (GND) Manual UP operation Below 1 Ω
    O7-10 (DOWN) - O7-5 (GND) Manual DOWN operation Below 1 Ω
    Fig 4: Identifying O7 Rear Power Window Regulator Switch Connector
    G05776662Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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

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