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Home >> Lexus >> 2007 >> GS 430 >> Repair and Diagnosis >> Body & Frame >> Windows >> Windshield/WINDOWGLASS >> Power Window Control System >> Rear Power Window RH Auto Up / Down Function does not Operate with Rear Power Window Switch RH >> Inspection Procedure
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Inspection Procedure

  1. CHECK MANUAL UP/DOWN FUNCTION (REAR RH) 
    1. Check that the manual UP/DOWN functions operate normally.

      OK: 

      Manual UP/DOWN functions operate normally. 

    NG: OTHER PROBLEM 

    OK: Go to next step 

  2. CHECK LIGHT OF MULTIPLEX NETWORK SWITCH ASSEMBLY (REAR RH) (AUTO LIGHT) 
    1. Turn the engine switch on (IG).
    2. Operate the switch for 2 seconds or more.
    3. Check the blinking pattern of the AUTO light. Compare the blinking pattern with the illustration below.
    Fig 1: Identifying AUTO Light Switch
    G05300194Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Identifying Blinking Pattern
    G05300191Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Result: 

    RESULT CHART

    Blinking Pattern Proceed to
    1 or 3 A
    2 B
    4 C

    B:  Go to step  4

    C: REPLACE MULTIPLEX NETWORK SWITCH ASSEMBLY (REAR RH) 

    A: Go to next step 

  3. RESET REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH 
    1. Check that the power window operates normally after it is reset.

      OK: 

      Power window operates normally. 

    NG: Go to step 4 

    OK: END 

  4. CHECK WIRE HARNESS (SWITCH ASSEMBLY (REAR RH) - REAR MOTOR ASSEMBLY RH) 
    1. Disconnect the S1 switch connector.
    2. Disconnect the O4 power window motor connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition
      S1-8 (VCC) - O4-4 (SSRB) Below 1 Ω
      S1-2 (PLS1) - O4-3 (PLS) Below 1 Ω
      S1-3 (PLS2) - O4-5 (PLS2) Below 1 Ω
      S1-5 (SGND) - O4-6 (E) Below 1 Ω
      S1-8 (VCC) or O4-4 (SSRB) - Body ground 10 kΩ or higher
      S1-2 (PLS1) or O4-3 (PLS) - Body ground 10 kΩ or higher
      S1-3 (PLS2) or O4-5 (PLS2) - Body ground 10 kΩ or higher
      S1-5 (SGND) or O4-6 (E) - Body ground 10 kΩ or higher
    Fig 3: Checking Wire Harness (Switch Assembly (Rear RH) - Rear Motor Assembly RH)
    G05300204Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH