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Inspection [06/2016 - 03/2017]: Procedure

  1. INSPECT STEERING PAD SWITCH ASSEMBLY 
    1. Measure the resistance according to the value(s) in the table below.
      GTY706160Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Steering Pad Switch Assembly)
      *b VOL+
      *c VOL- *d MODE
      *e SEEK+ *f SEEK-

      Standard Resistance

      Tester Connection Condition Specified Condition
      z8-6 (AU1) - z8-5 (AU GND) No switch pushed 98 to 102 kΩ
      SEEK+ switch pushed Below 2.5 Ω
      SEEK- switch pushed 322 to 336 Ω
      VOL+ switch pushed 980 to 1020 Ω
      VOL- switch pushed 3048 to 3172 Ω
      z8-1 (AU2) - z8-5(AU GND) No switch pushed 98 to 102 kΩ
      MODE switch pushed Below 2.5 Ω
      z8-12 (HO) - A-1 (HO) Always Below 2.5 Ω
      z8-10 (ECC) - B-1 (ECC) Always Below 2.5 Ω
      z8-11 (ECC) - B-3 (ECC) Always Below 2.5 Ω

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

    2. Check the illumination.
      1. Connect a positive (+) lead from the battery to the terminal z8-8 (ILL+) and a negative (-) lead to the terminal z8-9 (ILL-) of the steering pad switch assembly connector.
      2. Check that the switch illumination illuminates.

        OK

        The steering pad switch illumination illuminates.

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