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On-Vehicle Inspection [10/2015 - ]: Procedure

  1. INSPECT HORN RELAY ASSEMBLY 
    1. Remove the HORN relay.
      GTY469648Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (HORN Relay)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      3 - 5 Auxiliary battery voltage not applied between terminals 1 and 2 10 kΩ or higher
      3 - 5 Auxiliary battery voltage applied between terminals 1 and 2 Below 1 Ω

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

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