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Steering Pad Switch: Inspection

  1. INSPECT STEERING PAD SWITCH LH (w/o Navigation System) 
    1. Measure the resistance according to the values in the table below.
      Fig 1: Identifying Steering Pad Switch Connector Terminals LH
      G04966779Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester connection Condition Specified condition
      AU1 - EAU No switch is pushed Approx. 100 kΩ
      AU1 - EAU SEEK+ switch: push Approx. 0 Ω
      AU1 - EAU SEEK- switch: push Approx. 0.3 kΩ
      AU1 - EAU VOL+ switch: push Approx. 1 kΩ
      AU1 - EAU VOL- switch: push Approx. 3.2 kΩ
      AU2 - EAU No switch is pushed Approx. 100 kΩ
      AU2 - EAU MODE switch: push Approx. 0 Ω

      If the result is not as specified, replace the steering pad switch LH.

  2. INSPECT STEERING PAD SWITCH RH (w/ Navigation System) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 2: Identifying Steering Pad Switch Connector Terminals RH
      G04966981Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester connection Condition Specified condition
      AU2 (B-4) - EAU (B-2) No switch is pushed 10 kΩ or higher
      AU2 (B-5) - EAU (B-3)
      AU2 (B-5) - EAU (B-2)
      AU2 (B-4) - EAU (B-3)
      AU2 (B-4) - EAU (B-2) VOICE switch: push Approx. 3.2 kΩ
      AU2 (B-5) - EAU (B-3)
      AU2 (B-5) - EAU (B-2)
      AU2 (B-4) - EAU (B-3)
      AU2 (B-4) - EAU (B-2) ON HOOK switch: push Approx. 0.3 kΩ
      AU2 (B-5) - EAU (B-3)
      AU2 (B-5) - EAU (B-2)
      AU2 (B-4) - EAU (B-3)
      AU2 (B-4) - EAU (B-2) OFF HOOK switch: push Approx. 1 kΩ
      AU2 (B-5) - EAU (B-3)
      AU2 (B-5) - EAU (B-2)
      AU2 (B-4) - EAU (B-3)

      If the result is not as specified, replace the steering pad switch RH.

  3. INSPECT STEERING PAD SWITCH CABLE (w/ Navigation System) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 3: Identifying Steering Pad Switch Cable Connector Terminals
      G04966980Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester connection Condition Specified condition
      B-1 - C-1 Always Below 1 Ω
      B-2 - C-2 Always Below 1 Ω
      B-3 - C-3 Always Below 1 Ω
      B-4 - C-4 Always Below 1 Ω
      B-5 - C-5 Always Below 1 Ω
      B-6 - C-6 Always Below 1 Ω
      B-7 - C-7 Always Below 1 Ω
      B-8 - C-8 Always Below 1 Ω
      B-1 - Body ground Always 10 kΩ or higher
      B-2 - Body ground Always 10 kΩ or higher
      B-3 - Body ground Always 10 kΩ or higher
      B-4 - Body ground Always 10 kΩ or higher
      B-5 - Body ground Always 10 kΩ or higher
      B-6 - Body ground Always 10 kΩ or higher
      B-7 - Body ground Always 10 kΩ or higher
      B-8 - Body ground Always 10 kΩ or higher

      If the result is not as specified, replace the steering pad switch cable.