STEERING PAD SWITCH INSPECTION


  1. INSPECT STEERING PAD SWITCH ASSEMBLY


    1. Measure the resistance according to the value(s) in the table below.

      A0163EWE04
      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      k1-1 (HO) - Terminal A Always Below 1 Ω
      k1-4 (DIST) - k1-6 (ECC)*1 No switch pushed 10 kΩ or higher
      k1-4 (DIST) - k1-6 (ECC)*1 Distance control switch: ON Below 2.5 Ω
      k1-7 (DISP) - k1-8 (EAU) No switch pushed 10 kΩ or higher
      k1-7 (DISP) - k1-8 (EAU) DISP switch: pushed Below 2.5 Ω
      k1-9 (AU2) - k1-8 (EAU) No switch pushed 95 to 105 kΩ
      k1-9 (AU2) - k1-8 (EAU) MODE switch: pushed Below 2.5 Ω
      k1-9 (AU2) - k1-8 (EAU)*2 Voice switch: pushed 2954 to 3265 Ω
      k1-9 (AU2) - k1-8 (EAU)*2 On Hook switch: pushed 312 to 345 Ω
      k1-9 (AU2) - k1-8 (EAU)*2 Off Hook switch: pushed 950 to 1050 Ω
      k1-10 (AU1) - k1-8 (EAU) No switch pushed 95 to 105 kΩ
      k1-10 (AU1) - k1-8 (EAU) Seek+ switch: pushed Below 2.5 Ω
      k1-10 (AU1) - k1-8 (EAU) Seek- switch: pushed 312 to 345 Ω
      k1-10 (AU1) - k1-8 (EAU) Volume+ switch: pushed 950 to 1050 Ω
      k1-10 (AU1) - k1-8 (EAU) Volume- switch: pushed 2954 to 3265 Ω
      k1-2 (SFTU) - j1-2 (SFTU) Always Below 1 Ω
      k1-3 (SFTD) - j1-1 (SFTD) Always Below 1 Ω
      k1-6 (ECC) - j1-4 (ECC) Always Below 1 Ω

      • *1: w/ Dynamic Radar Cruise Control System

      • *2: w/ Microphone

      Tech Tips

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

      Text in Illustration
      *A w/ Microphone *B w/o Microphone
      *C w/ Dynamic Radar Cruise Control System - -
      *1

      Component without harness connected

      (Steering Pad Switch Assembly)

      		 *2 Volume+
      *3 Volume- *4 Seek-
      *5 MODE *6 Seek+
      *7 Off Hook *8 On Hook
      *9 Voice switch *10 DISP switch
      *11 Distance control switch *12 Terminal-A

    2. Check the illumination

      A0162OCE01

      1. Connect a positive (+) lead to terminal IL+2 and a negative (-) lead to terminal EAU of the steering pad switch assembly connector.

      2. Check that the switch illumination comes on.

        OK
        Steering pad switch illumination comes on.

        Tech Tips

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

        Text in Illustration
        *A w/ Microphone *B w/o Microphone
        *1

        Component without harness connected

        (Steering Pad Switch Assembly)

        		 - -