Toyota Sienna Service Manual: The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted

Toyota Sienna Service Manual / Navigation / Navigation system / Diagnostic trouble code chart / The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted

INSPECTION PROCEDURE

1 CHECK CELLULAR PHONE

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

OK: Voice can be heard

2 CHECK NAVIGATION SYSTEM

Check that navigation sound can be heard from the driver side speaker.

OK: Audio sound can be heard

3 CHECK SETTINGS

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

OK: The level is not set low

CHECK SETTINGS

4 CHECK SETTINGS

CHECK SETTINGS

Enter the "Handsfree Voice Quality Set" mode.
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.
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".

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Cannot Call in a Certain Place

INSPECTION PROCEDURE 1 CHECK SURROUNDING CONDITIONS Check if the cellular phone can make calls in a certain place. OK: It can make calls 2 CHECK RECEPTION Enter the "Informati ...

The Other Caller cannot Hear Your Voice, or Your Voice is too Quiet or Distorted

INSPECTION PROCEDURE 1 CHECK CELLULAR PHONE Check if the other side can hear your voice properly. OK: Your voice can be heard correctly. 2 CHECK SETTINGS Check if the mute switch is ...

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Problem symptoms table
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