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Home >> Lexus >> 2019 >> IS 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System - Diagnostic Codes (2 Of 2) & Symptom Tests (1 Of 2) >> Navigation System >> Voice Guidance does not Function [04/2013 - 09/2020] >> Procedure

Voice Guidance does not Function [04/2013 - 09/2020]: Procedure

  1. CHECK VOICE GUIDANCE SETTING 
    1. Check that the voice guidance settings are not off.

      OK

      Voice guidance settings are not off.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    CHANGE THE VOICE GUIDANCE SETTINGS TO ON 

    Result: 

    OK 

    See step  2

  2. CHECK AUDIO FUNCTION 
    1. Check that sound can be heard from a front speaker.

      OK

      Sound can be heard.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [04/2013 - 09/2020] 

    Result: 

    NG 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [04/2013 - 09/2018]  , or refer to  PROBLEM SYMPTOMS TABLE [09/2018 - 09/2020]