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On-Vehicle Inspection

  1. INSPECT DEFOGGER RELAY 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.

        Standard Resistance 

        TESTER CONNECTION SPECIFIED CONDITION

        Tester Connection Specified Condition
        3 - 4 Below 1 Ω
        3-4 10 kΩ or higher (Battery voltage applied to terminals 1 and 2)
        3 - 5 10 kΩ or higher
        3 - 5 Below 1 Ω (Battery voltage applied to terminals 1 and 2)
        Fig 1: Identifying Defogger Relay
        G05114369Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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