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Home >> Toyota >> 2016 >> Corolla L, Automatic Trans >> Repair and Diagnosis >> Steering >> Steering Column >> Steering Column (Service Information) (Model Code: ZRE172) >> Steering Pad Switch >> Inspection [08/2016 - ] >> Procedure
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Inspection [08/2016 - ]: Procedure

  1. INSPECT STEERING PAD SWITCH ASSEMBLY (Type A) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY722259Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Steering Pad Switch Assembly)      		 *b Volume+
      *c Volume- *d Voice
      *e MODE/HOLD *f Seek+
      *g Seek- *h Off Hook
      *i On Hook *j Enter
      *k Up *l Down
      *m Left *n Right
      *o Back *p TRIP
      *q Lane Departure Alert *r Distance Control

      HINT: 

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      A-1 - C-1 Always Below 2.5 Ω
      A-11 - A-8 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
      A-10 - A-8 No switch pushed 95 to 105 kΩ
      MODE switch pushed Below 2.5 Ω
      On hook switch pushed 313 to 345 Ω
      Off hook switch pushed 950 to 1050 Ω
      Voice switch pushed 2955 to 3265 Ω
      A-2 - A-8 No switch pushed 95 to 105 kΩ
      Enter switch pushed Below 2.5 Ω
      TRIP switch pushed 313 to 345 Ω
      Back switch pushed 950 to 1050 Ω
      A-3 - A-8 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
      A-4 - A-7 No switch pushed 1 MΩ or higher
      Lane departure alert switch pushed 228 to 252 Ω
      Distance control switch pushed Below 2.5 Ω
      A-6 - B-2* Always Below 2.5 Ω
      A-7 - B-7* Always Below 2.5 Ω
      A-12 - B-3* Always Below 2.5 Ω
      1. *: w/ Shift Paddle Switch
    2. Check the illumination.
      GTY703902Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Steering Pad Switch Assembly)      		 - -
      1. Connect a battery positive (+) lead to terminal 5 and a negative (-) lead to terminal 9 of the steering pad switch assembly connector.
      2. Check that the steering pad switch assembly illumination illuminates.

        OK

        The steering pad switch assembly illumination illuminates.

        HINT: 

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

  2. INSPECT STEERING PAD SWITCH ASSEMBLY (Type B) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY688112Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Steering Pad Switch Assembly)      		 *b Volume+
      *c Volume- *d Seek-
      *e Seek+ *f MODE/HOLD
      *g DISP *h Off Hook
      *i On Hook *j Voice
      *k Lane Departure Alert *l Distance Control

      Standard Resistance

      Tester Connection Condition Specified Condition
      A-1 - B-1 Always Below 2.5 Ω
      A-11 - A-8 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
      A-10 - A-8 No switch pushed 95 to 105 kΩ
      MODE/HOLD switch pushed Below 2.5 Ω
      On hook switch pushed 313 to 345 Ω
      Off hook switch pushed 950 to 1050 Ω
      Voice switch pushed 2955 to 3265 Ω
      A-2 - A-8 No switch pushed 1 MΩ or higher
      DISP switch pushed Below 2.5 Ω
      A-4 - A-7 No switch pushed 1 MΩ or higher
      Lane departure alert switch pushed 228 to 252 Ω
      Distance control switch pushed Below 2.5 Ω

      HINT: 

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

    2. Check the illumination.
      GTY734533Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Steering Pad Switch Assembly)      		 - -
      1. Connect a battery positive (+) lead to terminal 5 and a negative (-) lead to terminal 9 of the steering pad switch assembly connector.
      2. Check that the steering pad switch assembly illumination illuminates.

        OK

        The steering pad switch assembly illumination illuminates.

        HINT: 

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

  3. INSPECT STEERING PAD SWITCH ASSEMBLY (Type C) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY732759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Steering Pad Switch Assembly)      		 *b Volume+
      *c Volume- *d Seek-
      *e Seek+ *f MODE/HOLD
      *g DISP *h Off Hook
      *i On Hook *j Voice

      Standard Resistance

      Tester Connection Condition Specified Condition
      A-1 - B-1 Always Below 2.5 Ω
      A-11 - A-8 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
      A-10 - A-8 No switch pushed 95 to 105 kΩ
      MODE/HOLD switch pushed Below 2.5 Ω
      On hook switch pushed 313 to 345 Ω
      Off hook switch pushed 950 to 1050 Ω
      Voice switch pushed 2955 to 3265 Ω
      A-2 - A-8 No switch pushed 1 MΩ or higher
      DISP switch pushed Below 2.5 Ω
      A-6 - B-2* Always Below 2.5 Ω
      A-7 - B-7* Always Below 2.5 Ω
      A-12 - B-3* Always Below 2.5 Ω
      1. *: w/ Shift Paddle Switch

      HINT: 

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

    2. Check the illumination.
      GTY699237Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Steering Pad Switch Assembly)      		 - -
      1. Connect a battery positive (+) lead to terminal 5 and a negative (-) lead to terminal 9 of the steering pad switch assembly connector.
      2. Check that the steering pad switch assembly illumination illuminates.

        OK

        The steering pad switch assembly illumination illuminates.

        HINT: 

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

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