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On-Vehicle Inspection

  1. INSPECT DEFOGGER RELAY (Marking: RR DEF) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Condition Specified Condition
      3 - 4 Below 1 Ω (when battery voltage is not applied between terminals)
      3 - 5 10 kΩ or higher (when battery voltage is not applied between terminals)
      3 - 5 Below 1 Ω (when battery voltage is applied to terminals 1 and 2)

      If the result is not as specified, replace the relay. 

      Fig 1: Defogger Relay Circuit
      G04952245Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002