Window Defogger Switch: Inspection

WARNING: This page is about a different car, the 2006 Toyota Matrix. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT REAR WINDOW DEFOGGER SWITCH ASSEMBLY
1. Inspect the defogger switch.
  1. Connect the battery's positive (+) lead to terminal 2 and negative (-) lead to terminal 3. Check that the indicator light turns on. If the result is not as specified, replace the switch or bulb.
    
    Fig 1: Checking Indicator Light Turns On
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Inspect the defogger timer operation.
  1. Connect the battery's positive (+) lead to terminal 2 and negative (-) lead to terminal 3.
  2. Connect the battery's positive (+) lead to terminal 6 through a 1.4 W test bulb.
  3. Turn the defogger switch ON. Check that:
    - The indicator light in the switch and test bulb turn on.
    - After approximately 12 to 18 minutes, the indicator light and test bulb turn off.
    If the result is not as specified, replace the switch.
    
    Fig 2: Turning Defogger Switch ON
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002