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Steering Pad Switch: Inspection

  1. INSPECT STEERING PAD SWITCH (w/ Navigation System) 
    1. Disconnect the steering pad switch assembly connector.
      Fig 1: Locating Steering Pad Switch And Claw
      G05828309Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 2: Identifying Steering Pad Switch Assembly Connector
      G05828310Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the values in the table below.

      Standard resistance 

      RESISTANCE REFERENCE

      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
      AU2-EAU VOICE switch: push Approx. 3.2 kΩ
      AU2-EAU ON HOOK switch: push Approx. 0.3 kΩ
      AU2-EAU OFF HOOK switch: push Approx. 1 kΩ

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

  2. INSPECT STEERING PAD SWITCH (w/o Navigation System) 
    1. Disconnect the steering pad switch assembly connector.
      Fig 3: Identifying Steering Pad Switch Assembly Connector
      G05828311Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the values in the table below.

      Standard resistance 

      RESISTANCE REFERENCE

      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.

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