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Horn System: Inspection

  1. INSPECT LOW PITCHED HORN ASSY 
    1. Connect the positive (+) lead from the battery to the terminal and the negative (-) lead to the horn body, and check that the horn blows.

      If the result is not as specified, replace the horn assy.

    Fig 1: Inspecting Low Pitched Horn Assy
    G00917191Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT HIGH PITCHED HORN ASSY 
    1. Connect the positive (+) lead from the battery to the terminal and the negative (-) lead to the horn body, and check that the horn blows.

      If the result is not as specified, replace the horn assy.

    Fig 2: Inspecting High Pitched Horn Assy
    G00917192Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT HORN RELAY ASSY 
    1. Remove the horn relay from the instrument panel junction block assy.
    2. Inspect the horn relay continuity.

      Standard: 

      Fig 3: Horn Relay Terminals Continuity
      G00917194Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

    Fig 4: Inspecting Horn Relay Assy
    G00917193Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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