Window Defogger Switch: Inspection

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