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Home >> Lexus >> 2007 >> LS 460 >> Repair and Diagnosis >> Body & Frame >> Windows >> Windshield/WINDOWGLASS >> Power Window Control System >> DTC B2311 Power Window Motor Malfunction >> Inspection Procedure

Inspection Procedure

  1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER OR TECHSTREAM (POWER WINDOW) 
    1. Select the Active Test, use the intelligent tester or Techstream to generate a control command, and then check that the power window regulator motor UP/ DOWN.
      CAUTION: Be careful to avoid injuries as this test causes vehicle parts to move. During the ACTIVE TEST, the jam protection function does not operate.
      1. Intelligent tester

        D DOOR MOTOR: 

        INTELLIGENT TESTER D DOOR MOTOR SPECIFICATION

        Tester Display Test Part Control Range
        P/W UP/DOWN Driver side power window UP/OFF (OFF)
        P/W UP/DOWN Driver side power window DOWN/OFF (OFF)

        P DOOR MOTOR: 

        INTELLIGENT TESTER P DOOR MOTOR SPECIFICATION

        Tester Display Test Part Control Range
        P/W UP/DOWN Front passenger side power window UP/OFF (OFF)
        P/W UP/DOWN Front passenger side power window DOWN/OFF (OFF)

        RL DOOR MOTOR: 

        INTELLIGENT TESTER RL DOOR MOTOR SPECIFICATION

        Tester Display Test Part Control Range
        P/W UP/DOWN Rear LH side power window UP/OFF (OFF)
        P/W UP/DOWN Rear LH side power window DOWN/OFF (OFF)

        RR DOOR MOTOR: 

        INTELLIGENT TESTER RR DOOR MOTOR SPECIFICATION

        Tester Display Test Part Control Range
        P/W UP/DOWN Rear RH side power window UP/OFF (OFF)
        P/W UP/DOWN Rear RH side power window DOWN/OFF (OFF)
      2. Techstream

        D-Door Motor: 

        TECHSTREAM D-DOOR MOTOR SPECIFICATION

        Tester Display Test Part Control Range
        Power Window Driver side power window UP/OFF (OFF)
        Power Window Driver side power window DOWN/OFF (OFF)

        P-Door Motor: 

        TECHSTREAM P-DOOR MOTOR SPECIFICATION

        Tester Display Test Part Control Range
        Power Window Front passenger side power window UP/OFF (OFF)
        Power Window Front passenger side power window DOWN/OFF (OFF)

        RL-Door Motor: 

        TECHSTREAM RL-DOOR MOTOR SPECIFICATION

        Tester Display Test Part Control Range
        Power Window Rear LH side power window UP/OFF (OFF)
        Power Window Rear LH side power window DOWN/OFF (OFF)

        RR-Door Motor: 

        TECHSTREAM RR-DOOR MOTOR SPECIFICATION

        Tester Display Test Part Control Range
        Power Window Rear RH side power window UP/OFF (OFF)
        Power Window Rear RH side power window DOWN/OFF (OFF)

        OK: Power window operates normally. 

        Result: 

        RESULT CHART

        Result Proceed to
        OK A
        NG (Front LH side power window) B
        NG (Front RH side power window) C
        NG (Rear LH side power window) D
        NG (Rear RH side power window) E

    B: REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (See  REMOVAL   ) 

    C: REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (See  REMOVAL   ) 

    D: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (See  REMOVAL   ) 

    E: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (See  REMOVAL   ) 

    A: GO TO NEXT STEP 

  2. PERFORM INITIALIZATION 
    1. Initialize the power window regulator motor (see INITIALIZATION  ).
    2. Check that the power window operates normally by opening and closing the window.

      OK: Power window operates normally. 

      Result: 

      RESULT CHART

      Result Proceed to
      OK A
      NG (Front LH side power window) B
      NG (Front RH side power window) C
      NG (Rear LH side power window) D
      NG (Rear RH side power window) E

    B: REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (See  REMOVAL   ) 

    C: REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (See  REMOVAL   ) 

    D: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (See  REMOVAL   ) 

    E: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (See  REMOVAL   ) 

    A: GO TO NEXT STEP 

  3. CHECK WHETHER PARTS HAVE BEEN INSTALLED CORRECTLY 
    1. Check that the power window components are installed correctly.

      OK: Power window components are installed correctly. 

      HINT:

      When the power window components are installed correctly, the problem has been caused by battery disconnection while the engine switch is on (IG) or the motor being overheated.

    NG: INSTALL PARTS CORRECTLY 

    OK: END