2007 Lexus SC 430FACTORY OEM SERVICE PROCEDURE

On-Vehicle Inspection

  1. CHECK WINDOW LOCK SWITCH 
    1. Check that the passenger side power window operation is disabled when the window lock switch of the power window master switch is pressed.
    2. Check that the passenger side power window can be operated when the window lock switch is pressed again.
      Fig 1: Identifying Window Lock Switch
      G05293420Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. CHECK MANUAL UP / DOWN FUNCTION 
    1. Check that the driver side power window operates as follows:

      OK 

      SWITCHES CONDITION CHART

      Condition Master Switch Switch Operation Power Window
      Ignition switch ON Driver side Pulled halfway up UP (Closed)
      Ignition switch ON Driver side Pushed halfway down DOWN (Open)
    2. Check that the passenger side power window operates as follows:

      OK 

      SWITCHES CONDITION CHART

      Condition Master Switch Switch Operation Power Window
      Ignition switch ON
      Window lock switch OFF      		 Passenger side Pulled halfway up UP (Closed)
      Ignition switch ON
      Window lock switch OFF      		 Passenger side Pushed halfway down DOWN (Open)
  3. CHECK AUTO UP / DOWN FUNCTION 
    1. Check that the driver side power window operates as follows:

      OK 

      SWITCHES CONDITION CHART

      Condition Master Switch Switch Operation Power Window
      Ignition switch ON Driver side Pulled fully up AUTO UP (Fully closed)
      Ignition switch ON Driver side Pushed fully down AUTO DOWN (Fully open)
    2. Check that the passenger side power window operates as follows:

      OK 

      SWITCHES CONDITION CHART

      Condition Regulator Switch Switch Operation Power Window
      Ignition switch ON
      Window lock switch OFF      		 Passenger side Pulled fully up AUTO UP (Fully closed)
      Ignition switch ON
      Window lock switch OFF      		 Passenger side Pushed fully down AUTO DOWN (Fully open)
  4. CHECK REMOTE MANUAL UP / DOWN FUNCTION 
    1. Check that the passenger side power window operates as follows:

      OK 

      SWITCHES CONDITION CHART

      Condition Master Switch Switch Operation Power Window
      Ignition switch ON
      Window lock switch OFF      		 Passenger side Pulled halfway up UP (Closed)
      Ignition switch ON
      Window lock switch OFF      		 Passenger side Pushed halfway down DOWN (Open)
  5. CHECK REMOTE AUTO UP / DOWN FUNCTION 
    1. Check that the passenger side power window operates as follows:

      OK 

      SWITCHES CONDITION CHART

      Condition Master Switch Switch Operation Power Window
      Ignition switch ON
      Window lock switch OFF      		 Passenger side Pulled fully up AUTO UP (Fully closed)
      Ignition switch ON
      Window lock switch OFF      		 Passenger side Pushed fully down AUTO DOWN (Fully open)
  6. CHECK JAM PROTECTION FUNCTION 

    HINT:

    The jam protection function prevents any part of your body from getting caught by accident between the door frame and the door glass during power window operation.

    NOTE: If the power window motor has just been reset, raise and lower the door glass several times using MANUAL UP / DOWN function before performing the check.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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