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Window Defogger Switch: Inspection

INSPECT WINDOW DEFOGGER SWITCH

Check the defogger switch illuminates.

Standard

MEASUREMENT CONDITION AND SPECIFIED CONDITION CHART

Measurement Condition	Specified Condition
Battery positive (+) → ILL+ (6) Battery negative (-) → ILL- (5)	Illuminates

If the result is not as specified, replace the switch assembly or bulb.

Fig 1: Checking Defogger Switch Illuminates

G05141713

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check the defogger timer.
1. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 3.
2. Connect positive (+) lead from the battery to terminal 1 through a 1.4 W test bulb.
3. Push the outer defogger switch ON then check that the switch and the test bulb turn off after thy illuminate for 12 to 18 minutes.
  If the result is not as specified, replace the switch assembly.
  
  Fig 2: Checking Defogger Timer
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002