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Inspection [12/2017 - 10/2023]: Procedure

  1. INSPECT STEERING PAD SWITCH ASSEMBLY 
    1. Measure the resistance according to the value(s) in the table below.
      GTY827105Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Up *2 Down
      *3 Left *4 Right
      *5 Enter *6 Back
      *7 Tel *8 Voice
      *9 Volume+ *10 Volume-
      *11 Main *12 Cancel
      *13 Seek+ *14 Seek-
      *15 MODE *16 +RES
      *17 -SET *18 Distance Control
      *19 Lane Departure Alert Main - -
      *a Component without harness connected
      (Steering Pad Switch Assembly)
      - -

      Standard Resistance

      Tester Connection Condition Specified Condition
      z6-3(AU1) -z6-10(EAU) No switch pushed 95 to 105 kΩ
      Seek+ switch pushed Below 2.5 Ω
      Seek- switch pushed 313 to 345 Ω
      Volume+ switch pushed 950 to 1050 Ω
      Volume- switch pushed 2955 to 3265 Ω
      z6-9(AU2) - z6-10(EAU) No switch pushed 95 to 105 kΩ
      MODE switch pushed Below 2.5 Ω
      Tel switch pushed 950 to 1050 Ω
      Voice switch pushed 2955 to 3265 Ω
      z6-5(+DP2) - z6-10(EAU) No switch pushed 95 to 105 kΩ
      Left switch pushed Below 2.5 Ω
      Up switch pushed 313 to 345 Ω
      Down switch pushed 950 to 1050 Ω
      Right switch pushed 2955 to 3265 Ω
      z6-4(+DP) - z6-10(EAU) No switch pushed 95 to 105 kΩ
      Enter switch pushed Below 2.5 Ω
      Back switch pushed 313 to 345 Ω
      z6-8(DIST) - z6-12(ECC) No switch pushed 1 MΩ or higher
      Distance control switch pushed Below 2.5 Ω
      Lane departure alert main switch pushed 228 to 252 Ω
      z6-2(CCS) - z6-12(ECC) No switch pushed 1 MΩ or higher
      Main switch pushed Below 2.5 Ω
      Cancel switch pushed 228 to 252 Ω
      +RES switch pushed 599 to 661 Ω
      -SET switch pushed 1463 to 1617 Ω
      z6-11(GND1) - A-1(VGRS) Always Below 2.5 Ω

      HINT: 

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

    2. Check the illumination.
      1. Apply battery voltage between the terminals of the switch, and check the illumination condition of the steering pad switch assembly.

        Standard

        Tester Connection Specified Condition
        Battery positive (+) → z6-1 (IL+2) Battery negative (-) → z6-6 (ILL-) Illuminates

        HINT: 

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