2009 Scion tC AutomaticFACTORY 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 regulator 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
      G05114278Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. CHECK MANUAL UP/DOWN FUNCTION 
    1. Check that the driver side power window operates as follows:
      DRIVER SIDE POWER WINDOW OPERATION CHART

      Condition Master Switch Switch Operation Power Window
      Ignition switch ON Driver side Pulled halfway up UP (closes)
      Ignition switch ON Driver side Pushed halfway down DOWN (opens)
    2. Check that the passenger side power window operates as follows:
      PASSENGER SIDE POWER WINDOW OPERATION CHART

      Condition Regulator switch Switch Operation Power Window
      Ignition switch ON Passenger side Pulled halfway up UP (closes)
      Window lock switch OFF
      Ignition switch ON Passenger side Pushed halfway down DOWN (opens)
      Window lock switch OFF
  3. CHECK AUTO UP/DOWN FUNCTION 
    1. Check that the driver side power window operates as follows:
      DRIVER SIDE POWER WINDOW OPERATION CHART

      Condition Master Switch Switch Operation Power Window
      Ignition switch ON Driver side Pulled fully up AUTO UP (fully closes)
      Ignition switch ON Driver side Pushed fully down AUTO DOWN (fully opens)
    2. Check that the passenger side power window operates as follows:
      PASSENGER SIDE POWER WINDOW OPERATION CHART

      Condition Regulator switch Switch Operation Power Window
      Ignition switch ON Passenger side Pulled fully up AUTO UP (fully closes)
      Window lock switch OFF
      Ignition switch ON Passenger side Pushed fully down AUTO DOWN (fully opens)
      Window lock switch OFF
  4. CHECK REMOTE MANUAL UP/DOWN FUNCTION 
    1. Check that the passenger side power window operates as follows:
      PASSENGER SIDE POWER WINDOW OPERATION CHART

      Condition Master Switch Switch Operation Power Window
      Ignition switch ON Passenger side Pulled fully up UP (closes)
      Window lock switch OFF
      Ignition switch ON Passenger side Pushed fully down DOWN (opens)
      Window lock switch OFF
  5. CHECK REMOTE AUTO UP/DOWN FUNCTION 
    1. Check that the passenger driver side power window operates as follows:
      PASSENGER DRIVER SIDE POWER WINDOW OPERATION CHART

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

    HINT:

    The jam protection function helps prevent power window operation related injuries.

    NOTE: If the power window motor has just been reset, raise and lower the door glass several times through MANUAL operation before performing the check.
    1. Check that the door glass moves down by approximately 50 mm (1.97 in.) when something is caught between the door frame and door glass during power window operation. However, when the opening between the door frame and the door glass is less than 200 mm (7.87 in.), the door glass continues to move down and does not stop until an opening of 200 mm (7.87 in.) is achieved.

      Operative condition

      • AUTO UP
        Fig 2: Identifying Jam Protection Function
        G05541727Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. CHECK POWER WINDOW FAIL-SAFE FUNCTION 

    HINT:

    If there is a malfunction in the power window system, some of the power window functions will be disabled.

    Driver side power window 

    DRIVER SIDE POWER WINDOW FAIL-SAFE FUNCTION CHART

    Malfunctioning Part Disabled Function Operative Function
    Pulse sensor circuit in power window motor AUTO UP/DOWN function
    • Manual UP (fully pulled UP position)
    • Manual DOWN
    • Remote (AUTO and manual)
    CPU in master switch AUTO UP/DOWN function Manual UP (fully pulled UP position)
    Manual DOWN
    Remote function (AUTO and manual) Manual UP (fully pulled UP position)
    Manual DOWN

    Passenger side power window 

    PASSENGER SIDE POWER WINDOW FAIL-SAFE FUNCTION CHART

    Malfunctioning Part Disabled Function Operative Function
    Pulse sensor circuit in power window motor AUTO UP/DOWN function
    • Manual UP (fully pulled UP position)
    • Manual DOWN
    CPU in power window switch AUTO UP/DOWN function
    • Manual UP (fully pulled UP position)
    • Manual DOWN
    Communication between master switch and power window switch AUTO UP/DOWN function
    • Manual UP (fully pulled UP position)
    • Manual DOWN
  8. CHECK POWER WINDOW SWITCH'S LED OPERATION 
    1. Make sure that the power window lock switch on the power window regulator master switch is not pressed.
    2. Turn the ignition switch ON. Then check that all the LEDs on the power window switches illuminate.
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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