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Horn System: Inspection

  1. INSPECT HIGH PITCHED HORN ASSY 
    1. Check operation of the horn.
      Fig 1: Measurement Specified Condition Reference Table
      G02936417Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Inspecting High Pitched Horn Assy
    G02936418Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

  2. INSPECT LOW PITCHED HORN ASSY 
    1. Check operation of the horn.
      Fig 3: Measurement Specified Condition Reference Table
      G02936419Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 4: Inspecting Low Pitched Horn Assy
    G02936420Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

  3. INSPECT HORN RELAY ASSY 
    1. Inspect the horn relay (Marking: HORN) resistance.
      RESISTANCE SPECIFICATIONS

      Tester connection Condition Specified condition
      3 - 5 Always 10 kΩ or higher
      3 - 5 Apply B+ between terminals 1 and 2 Below 1 Ω

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

    Fig 5: Inspecting Horn Relay Assy
    G02936421Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002