STEERING PAD SWITCH INSPECTION


  1. INSPECT STEERING PAD SWITCH ASSEMBLY


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

      A003SI8E04
      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1 (HO) - Terminal-A Always Below 1 Ω
      7 (DISP) - 8 (EAU)*1 No switch pushed 95 to 105 kΩ
      DISP switch pushed Below 2.5 Ω
      10 (AU1) - 8 (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
      9 (AU2) - 8 (EAU) No switch pushed 95 to 105 kΩ
      MODE switch pushed Below 2.5 Ω
      On hook switch pushed*2 313 to 345 Ω
      Off hook switch pushed*2 950 to 1050 Ω
      Voice switch pushed*2 2955 to 3265 Ω

      • *1: w/ DISP Switch of Steering Pad Switch Assembly

      • *2: w/ Telephone Microphone Assembly

      Tech Tips

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

      Text in Illustration
      *A w/ Telephone Microphone Assembly *B w/ DISP Switch of Steering Pad Switch Assembly
      *a

      Component without harness connected

      (Steering Pad Switch Assembly)

      		 *b Seek+
      *c Seek- *d Volume+
      *e Volume- *f MODE
      *g On hook *h Off hook
      *i DISP *j Voice
      *k Terminal-A - -

    2. Check the illumination.

      A003S55E04

      1. Connect an auxiliary battery 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

        Component without harness connected

        (Steering Pad Switch Assembly)

        		 - -