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Window Defogger Switch: Inspection

  1. REMOVE AIR CONDITIONING CONTROL ASSEMBLY (DEFOGGER SWITCH) 
    1. Inspect operation of the defogger switch indicator.
      Fig 1: Identifying Window Defogger Indicator Connector Terminals
      G04967171Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard 

      SPECIFIED CONDITION

      Measurement Condition Specified Condition
      Battery positive (+) - IG+ (2)
      Battery negative (-) - DIND (11)
      Indicator light comes up

      If the result is not as specified, replace the air conditioning control assembly.

    2. Inspect the defogger switch continuity.

      Standard resistance 

      STANDARD RESISTANCE

      Terminal No. Switch Condition Specified Condition
      4-7 ON Continuity
      4-7 OFF No continuity

      If the result is not as specified, replace the air conditioning control assembly.

      Fig 2: Inspecting Defogger Switch Continuity
      G05557544Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002