Toyota Sienna Service Manual: 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 set to ON.
OK: Mute switch is not set to ON.
3 CHECK SETTINGS
- Enter the "Handsfree Voice Quality Set" mode.
- Check if the Send Voice Level is set to "0".
HINT: The Send Voice Level can be set to 11 different levels, -5 to +5, with a 3 dB difference.
- Check if the Send Voice Level minimum or maximum level.
HINT: When the Send Voice Level is set to the minimum or maximum level, the sound may be distorted.
OK: The Send Voice Level is set to "0".
4 CHECK MICROPHONE (NAVIGATION CHECK MODE)
- Enter the "MICROPHONE & VOICE RECOGNITION CHECK" mode.
- When voice is input into the microphone, check that the microphone input level meter changes according to the input voice.
- Push the recording switch and perform voice recording.
HINT: Voice can be recorded up to 5 seconds.
- 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.
REPLACE RADIO AND NAVIGATION ASSEMBLY
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 naviga ...
Black Screen
INSPECTION PROCEDURE
1 CHECK DISPLAY SETTING
Check that the display is not in "Screen OFF" mode.
OK:
The display setting is not in "Screen OFF" mode.
2 CHECK IMAGE QUALIT ...
Other materials:
Reassembly
1. INSTALL LIGHT CONTROL ECU (DISCHARGE HEADLIGHT)
Install a new headlight leveling motor base packing.
Install the headlight leveling motor assembly as
shown in the illustration.
Connect the connector with the claw
Install the light control ECU with the 2 ...
Rear Air Conditioning Control Panel Circuit
DESCRIPTION
This is the rear A/C system control signal circuit as well as the power
supply circuit of the rear A/C control
assembly.
Pulse signals regarding rear A/C control panel switch operation are transmitted
between the A/C amplifier
and rear A/C control assembly.
WIRING DIAGRAM
...
SRS Warning Light Remains ON
DESCRIPTION
The SRS warning light is located on the combination meter assembly.
When the SRS is normal, the SRS warning light comes on for approximately 6
seconds after the ignition
switch is turned from the LOCK position to ON position, and then goes off
automatically.
If there is a mal ...
