STEERING WHEEL INSPECTION


  1. INSPECT STEERING PAD SWITCH ASSEMBLY


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

      A01NJJDE04
      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      z39-1 (HO) - Terminal A Always Below 2.5 Ω
      z39-2 (DISP) - z39-3 (GND1) No switch pushed 95 to 105 Ω
      z39-2 (DISP) - z39-3 (GND1) Menu switch pushed Below 2.5 Ω
      z39-2 (DISP) - z39-3 (GND1) ENTER switch pushed 313 to 345 Ω
      z39-2 (DISP) - z39-3 (GND1) Down switch pushed 950 to 1050 Ω
      z39-2 (DISP) - z39-3 (GND1) Up switch pushed 2955 to 3265 Ω
      z39-4 (DIST) - z39-7 (ECC)*1 Distance control switch pushed Below 2.5 Ω
      z39-4 (DIST) - z39-7 (ECC)*1 No switch pushed 10 kΩ or higher
      z39-8 (+DP) - z39-9 (EAU)*2 Monitor switch pushed Below 2.5 Ω
      z39-8 (+DP) - z39-9 (EAU)*2 No switch pushed 10 kΩ or higher
      z39-10 (AU2) - z39-9 (EAU) No switch pushed 95 to 105 kΩ
      z39-10 (AU2) - z39-9 (EAU) MODE switch pushed Below 2.5 Ω
      z39-10 (AU2) - z39-9 (EAU) Voice switch pushed 2955 to 3265 Ω
      z39-10 (AU2) - z39-9 (EAU) On Hook switch pushed 313 to 345 Ω
      z39-10 (AU2) - z39-9 (EAU) Off Hook switch pushed 950 to 1050 Ω
      z39-11 (AU1) - z39-9 (EAU) No switch pushed 95 to 105 kΩ
      z39-11 (AU1) - z39-9 (EAU) Seek+ switch pushed Below 2.5 Ω
      z39-11 (AU1) - z39-9 (EAU) Seek- switch pushed 313 to 345 Ω
      z39-11 (AU1) - z39-9 (EAU) Volume+ switch pushed 950 to 1050 Ω
      z39-11 (AU1) - z39-9 (EAU) Volume- switch pushed 2955 to 3265 Ω
      A-1 (SUP) - z39-6 (SUP) Always Below 2.5 Ω
      A-2 (SDN) - z39-12 (SDN) Always Below 2.5 Ω
      A-3 (ECC) - z39-7 (ECC) Always Below 2.5 Ω

      • *1: w/ Dynamic Radar Cruise Control System

      • *2: w/ Side Monitor System

      Tech Tips

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

      Text in Illustration
      *A w/ Side Monitor System *B w/ Dynamic Radar Cruise Control System
      *a

      Component without harness connected

      (Steering Pad Switch Assembly)

      		 *b Seek+
      *c Volume+ *d Volume-
      *e MODE *f Seek-
      *g Up Switch *h Enter Switch
      *i Down Switch *j Off Hook
      *k On Hook *l Voice Switch
      *m Distance Control Switch *n Menu Switch
      *o Terminal A *p Monitor Switch

    2. Check the illumination.

      A01NM9XE05

      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


        • The characters on the ENTER switch do not illuminate.

        • 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)

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