2008 Lexus IS 350FACTORY OEM SERVICE PROCEDURE

Operation Check

  1. CHECK WINDOW LOCK SWITCH 
    1. Check that the front passenger side power window and rear power windows operation are disabled when the window lock switch of the power window master switch is pressed.

      standard: 

      Front passenger side power window and rear power windows operation are disabled. 

      Fig 1: Identifying Window Lock Switch
      G04967105Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check that the front passenger side power window and rear power windows can be operated when the window lock switch is pressed again.

      standard: 

      Front passenger side power window and rear power windows can be operated. 

  2. CHECK MANUAL UP/DOWN FUNCTION 
    1. Check that the driver side power window operates as follows:

      Standard 

      POWER WINDOW OPERATION CHART

      Condition Master Switch Switch Operation Power Window
      Engine switch on (IG) Driver side Pulled halfway up UP (Closed)
      Pushed halfway down DOWN (Open)
    2. Check that the power windows except the driver side power window operates as follows:

      Standard 

      POWER WINDOW OPERATION CHART

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

      Standard 

      POWER WINDOW OPERATION CHART

      Condition Master Switch Switch Operation Power Window
      Engine switch on (IG) Driver side Pulled full up UP (Closed)
      Pushed full down DOWN (Open)
    2. Check that the power windows except the driver side power window operate as follows:

      Standard 

      POWER WINDOW OPERATION CHART

      Condition Master Switch Switch Operation Power Window
      • Engine switch on (IG)
      • Window lock switch OFF
      		 Passenger side Pulled full up UP (Closed)
      Pushed full down DOWN (Open)
      Rear LH Pulled full up UP (Closed)
      Pushed full down DOWN (Open)
      Rear RH Pulled full up UP (Closed)
      Pushed full down DOWN (Open)
  4. CHECK REMOTE MANUAL UP/DOWN FUNCTION 
    1. Check that the power windows except the driver side power window operate as follows:

      Standard 

      POWER WINDOW OPERATION CHART

      Condition Master Switch Switch Operation Power Window
      • Engine switch on (IG)
      • Window lock switch OFF
      		 Passenger side Pulled halfway up UP (Closed)
      Pushed halfway down DOWN (Open)
      Rear LH Pulled halfway up UP (Closed)
      Pushed halfway down DOWN (Open)
      Rear RH Pulled halfway up UP (Closed)
      Pushed halfway down DOWN (Open)
  5. CHECK REMOTE AUTO UP/DOWN FUNCTION 
    1. Check that the power windows except the driver side power window operate as follows:

      Standard 

      POWER WINDOW OPERATION CHART

      Condition Master Switch Switch Operation Power Window
      • Engine switch on (IG)
      • Window lock switch OFF
      		 Passenger side Pulled full up UP (Closed)
      Pushed full down DOWN (Open)
      Rear LH Pulled full up UP (Closed)
      Pushed full down DOWN (Open)
      Rear RH Pulled full up UP (Closed)
      Pushed full down DOWN (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 been reset, raise and lower the door glass several times using MANUAL 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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