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RELAY (for Window Defogger) ON-VEHICLE INSPECTION

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  1. Click here

    REMOVE DEFOGGER RELAY (DEFOG)


    1. Remove the defogger relay from the main body ECU (instrument panel junction block).

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    INSPECT DEFOGGER RELAY


    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 - 4 Battery voltage not applied to terminals 1 and 2 Below 1 Ω
      Battery voltage applied to terminals 1 and 2 10 kΩ or higher
      3 - 5 Battery voltage not applied to terminals 1 and 2 10 kΩ or higher
      Battery voltage applied to terminals 1 and 2 Below 1 Ω

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

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    INSTALL DEFOGGER RELAY


    1. Install the defogger relay to the main body ECU (instrument panel junction block).