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Home >> Toyota >> 2011 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio / Visual System (Diagnostic Codes & Symptom Tests) (Hybrid) >> Audio And Visual System >> Poor Sound Quality in All Modes (Low Volume) >> Procedure

Poor Sound Quality in All Modes (Low Volume): Procedure

  1. CHECK AUDIO SETTINGS 
    1. Set "BASS", "MID" and "TREB" to the initial values and check that sound is normal.

      OK

      Malfunction disappears.

    NG → See step   2 

    OK → END 

  2. COMPARE WITH ANOTHER VEHICLE OF SAME MODEL 
    1. Compare with another vehicle of the same model.
      1. Compare with another vehicle of the same model which does not have trouble to see if there is any difference in the sound quality.

        OK

        No difference is found.

    NG → See step   3 

    OK → END 

  3. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE