Navigation System The Other Caller'S Voice Cannot Be Heard, Is Too Quiet, Or Distorted

Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Navigation. Lexus Is250, Is220D. Gse20 Ale20

INSPECTION PROCEDURE

CHECK CELLULAR PHONE

CHECK NAVIGATION SYSTEM

CHECK SETTINGS

CHECK SETTINGS

NAVIGATION SYSTEM - The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted


INSPECTION PROCEDURE

1.CHECK CELLULAR PHONE

  1. Check if the voice on the other side can be heard using a cellular phone.

    OK:
    Voice can be heard.


NG
REPAIR OR REPLACE CELLULAR PHONE
OK


2.CHECK NAVIGATION SYSTEM

  1. Check that voice guidance can be heard from the driver side speaker.

    OK:
    Voice guidance can be heard.


NG
GO TO "VOICE GUIDANCE DOES NOT FUNCTION" IN PROBLEM SYMPTOMS TABLE
OK


3.CHECK SETTINGS


    Lexus Is250, Is220D. Gse20 Ale20.Navigation.Navigation System.Navigation System The Other Caller'S Voice Cannot Be Heard, Is Too Quiet, Or Distorted

  1. Check if the volume level is set to low on the CALL screen.

    OK:
    The level is not set low.


NG
SET VOLUME TO HIGH
OK


4.CHECK SETTINGS


    Lexus Is250, Is220D. Gse20 Ale20.Navigation.Navigation System.Navigation System The Other Caller'S Voice Cannot Be Heard, Is Too Quiet, Or Distorted

  1. Enter the "Handsfree Voice Quality Set" mode (Click here).

  1. Check if the Receive Voice Level is set to "0".

    HINT:
    The Receive Voice Level can be set to 11 different levels, -5 to +5, with a 3 dB difference.

  1. Check if the Receive Voice Level is set to the minimum or maximum level.

    HINT:
    When the Receive Voice Level is set to the minimum or maximum level, the sound may be distorted.
    OK:
    The Receive Voice Level is set to "0".


NG
SET RECEIVE VOICE LEVEL TO "0"
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE