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Horn Relay: Inspection

  1. INSPECT HORN RELAY (Marking: HORN) 
    1. Remove the horn relay from the engine room relay block.
    2. Measure the resistance of the relay.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Specified Condition
      3 - 5 10 kΩ or higher
      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: Identifying Horn Relay Terminals
      G05541707Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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