The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted: Procedure

1. Check if the other caller's voice can be heard properly.

   OK

   Voice can be heard.

   HINT: 

   The purpose of this step is to inspect the cellular phone when it is not connected to the vehicle.

NG → REPAIR OR REPLACE CELLULAR PHONE 

OK: Go to next step 

1. Check that navigation sound can be heard from the front speaker.

   OK

   Sound can be heard from the audio system.

NG → See step   6 

OK: Go to next step 

1. Display the "Call" screen.
2. Check if the volume level is not set to low.
   Fig 1: Checking Volume Lever On Call Screen

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   OK

   The level is not set to low.

   TEXT IN ILLUSTRATION
   
   

   *a

   Example

NG → SET VOLUME TO HIGH 

OK: Go to next step 

1. Enter the "Hands-free Volume Setting" screen. Refer to Check Hands-free Volume Setting in Operation Check, refer to OPERATION CHECK .
   Fig 2: Identifying Hands-Free Volume Setting Screen

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. 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.

3. 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 → See step   5