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On-Vehicle Inspection

  1. INSPECT DEFOGGER RELAY (Marking: DEFOG) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 1: Inspecting Defogger Relay (Marking - DEFOG)
      G04952245Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard resistance 

    DEFOGGER RELAY

    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.