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Steering Pad Switch: Inspection

  1. INSPECT STEERING PAD SWITCH ASSEMBLY (STEERING WHEEL SIDE) 
    Fig 1: Identifying Z7 Steering Pad Switch Connector Terminal
    G04954146Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the switch connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      STANDARD RESISTANCE SPECIFICATION

      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)
    G04954147Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the switch connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      STANDARD RESISTANCE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      7(AU2-1) - 3(EAU-1) No switch is pushed 1,000 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 1,010 Ω
      7(AU2-1) - 3(EAU-1) ON Hook switch pushed 330 Ω
      7(AU2-1) - 3(EAU-1) OFF Hook switch pushed 1,010 Ω
      6(AU1-1) - 3(EAU-1) No switch is pushed 1,000 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 329 Ω
      6(AU1-1) - 9(AU1-2) No switch is pushed 330 Ω

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