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Steering Pad Switch: Inspection

  1. INSPECT STEERING PAD SWITCH 
    1. Disconnect the steering pad switch connector.
      Fig 1: Inspecting Steering Pad Switch
      G05253111Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the values in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester connection Condition Specified condition
      AU1 - EAU No switch is pushed Approx. 100 kΩ
      AU1 - EAU SEEK+ switch: push Approx. 0 to 2.5 Ω
      AU1 - EAU SEEK- switch: push Approx. 0.3 kΩ
      AU1 - EAU VOL+ switch: push Approx. 1 kΩ
      AU1 - EAU VOL- switch: push Approx. 3.1 kΩ
      AU2 - EAU No switch is pushed Approx. 100 kΩ
      AU2 - EAU MODE switch: push Approx. 0 to 2.5 Ω
      AU2 - EAU VOICE switch: push Approx. 3.1 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.

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