NAVIGATION SYSTEM (for HDD) The Other Caller cannot Hear Your Voice, or Your Voice is too Quiet or Distorted

INSPECTION PROCEDURE

Tech Tips

If an outlet of the air conditioning system is facing the microphone, noise may be recorded and the other caller may not be able to hear your voice properly.

PROCEDURE


  1. CHECK CELLULAR PHONE


    1. Check if the other caller can hear your voice properly.

      OK
      Your voice can be heard properly.

      Tech Tips

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


    NG

    REPLACE CELLULAR PHONE

    OK

  2. CHECK SETTINGS


    1. A003Y8HE02
      Text in Illustration
      *a Example

      Check if the "Mute" switch is set to on.

      OK
      "Mute" switch is not set to on.

    NG

    TURN MUTE SWITCH OFF

    OK

  3. CHECK SETTINGS (OPERATION CHECK)


    1. A003Y05

      Enter the "Hands-free Volume Setting" screen. Refer to Check Hands-free Volume Setting in Operation Check Click here.

    2. Adjust "Send Voice Level" and check that the other caller can hear your voice.

      Tech Tips


      • Adjusting "Send Voice Level" may deteriorate the sound quality.

      • The "Send Voice Level" can be set to 10 different levels, -5 to +4.

      OK
      Malfunction disappears.

    NG

    CHECK MICROPHONE (OPERATION CHECK) Click here

    OK

    END

  4. CHECK MICROPHONE (OPERATION CHECK)


    1. A003ZCHE09
      Text in Illustration
      *a Microphone Input Level Meter
      *b Recording Switch
      *c Stop Switch
      *d Play Switch
      *e Recording Indicator

      Enter the "Microphone & Voice Recognition Check" screen. Refer to Check Mic & Voice Recognition in Operation Check Click here.

    2. When voice is input into the microphone, check that the microphone input level meter changes according to the input voice.

    3. Select the recording switch and perform voice recording.

      Tech Tips


      • Select the recording switch with the blower motor of the air conditioning system stopped. If an outlet of the air conditioning system is facing the microphone, noise may be recorded.

      • Voice can be recorded up to 5 seconds.

    4. Check that the recording indicator remains on while recording and that the recorded voice is played normally without noise or distortion.

      OK
      All check results are normal.

    NG

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    OK

  5. REPLACE RADIO RECEIVER ASSEMBLY


    1. Replace the radio receiver assembly Click here.

    2. Check for symptoms again.

      OK
      The other caller can hear your voice loud enough without noise or distortion.

    NG

    REPLACE NAVIGATION COMPUTER SUB-ASSEMBLY Click here

    OK

    END