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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.

    Fig 1: Inspecting Low Pitched Horn Assy
    G00921079Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT HORN RELAY ASSY (Marking: HORN) 
    1. Remove the horn relay from the engine room R/B and J/B.
    2. Inspect the horn relay continuity.

      Standard: 

    Fig 2: Inspecting Horn Relay Assy
    G00921081Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Fig 3: Horn Relay Continuity Chart
    G00921080Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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