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Steering Pad Switch: Inspection

  1. INSPECT STEERING PAD SWITCH ASSEMBLY (Steering Wheel Side) 
    Fig 1: Inspecting Steering Pad Switch Assembly (Steering Wheel Side)
    G05783891Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Switch Condition Specified Condition
      7 (AU1-2) - 3 (EAU-1) VOL+ switch pushed 680 Ω
      7 (AU1-2) - 3 (EAU-1) VOL- switch pushed 2880 Ω
      10 (AU2-3) - 3 (EAU-1) VOICE switch pushed 2200 Ω

      If the result is not as specified, replace the switch assembly

  2. INSPECT STEERING PAD SWITCH ASSEMBLY (Steering Pad Side) 
    Fig 2: Inspecting Steering Pad Switch Assembly (Steering Pad Side)
    G05783892Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Switch Condition Specified Condition
      7 (AU2-1) - 3 (EAU-1) No switch is pushed 1000 kΩ or higher
      7 (AU2-1) - 3 (EAU-1) MODE switch pushed Below 1 Ω
      7 (AU2-1) - 10 (AU2-3) No switch is pushed 1010 Ω
      7 (AU2-1) - 3 (EAU-1) ON Hook switch pushed 330 Ω
      7 (AU2-1) - 3 (EAU-1) OFF Hook switch pushed 1010 Ω
      6 (AU1-1) - 3 (EAU-1) No switch is pushed 1000 kΩ or higher
      6 (AU1-1) - 3 (EAU-1) Seek+ switch pushed Below 2.5 Ω
      6 (AU1-1) - 3 (EAU-1) Seek- switch pushed 330 Ω
      6 (AU1-1) - 9 (AU1-2) No switch is pushed 330 Ω

      If the result is not as specified, replace the switch assembly