Toyota Sienna Service Manual: Voice Guidance does not Function
INSPECTION PROCEDURE
1 CHECK NAVIGATION SYSTEM SETTING
- Enter the "Menu" screen by pressing the "MENU" switch.
- Select "Volume".
- Check that "OFF" is not selected.
OK: "OFF" is not selected
2 CHECK NAVIGATION SETTING
- Enter the "Menu" screen by pressing the "MENU" switch.
- Select "Set up".
- Check that "Voice Guidance in All Modes" is not OFF.
OK: Voice guidance in all modes is not OFF.
3 CHECK NAVIGATION SETTING
- Enter the "Menu" screen by pressing the "MENU" switch.
- Select "Setup".
- Check that "Auto Voice Guidance" is not OFF.
OK: Auto voice guidance is not OFF
4 CHECK MAP DISC
- Check that the map disc is not deformed or cracked.
OK: No deformations or cracks on map disc.
5 CHECK RADIO AND NAVIGATION ASSEMBLY
- Check that audio sound can be heard from the driver side speaker.
OK: Audio sound can be heard
REPLACE RADIO AND NAVIGATION ASSEMBLY
GPS Mark is not Displayed
INSPECTION PROCEDURE
1 CHECK CABIN
Check the cabin for any object that might interrupt radio
reception on the instrument panel. If such an object
exists, remove it and check if the GPS mark r ...
Map Display Incomplete
INSPECTION PROCEDURE
1 CHECK MAP DISC
Check that the map disc is not deformed or cracked.
OK:
No deformations or cracks on map disc.
2 CHECK DISPLAY
Check that displays other than th ...
Other materials:
Microphone Circuit between Microphone and Radio and Navigation
Assembly
DESCRIPTION
This circuit sends a microphone signal from the microphone to the radio and
navigation assembly.
It also supplies power from the radio and navigation assembly to the microphone.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT RADIO AND NAVIGATION ASSEMBLY
Measure the v ...
Emission inspection and
maintenance (I/M)
programs
Some states have vehicle emission inspection programs which
include OBD (On Board Diagnostics) checks. The OBD system
monitors the operation of the emission control system.
If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere in the
emission contr ...
Listening to an iPod
Connecting an iPod enables you to enjoy music from the vehicle
speakers.
Select “iPod” on the audio source selection screen.
When the iPod connected to the system includes iPod video, the
system can only output the sound by selecting the browse
screen.
Connecting an iPod
Audio control ...
