Toyota Sienna Service Manual: Poor Sound Quality in All Modes (Low Volume)
INSPECTION PROCEDURE
1 CHECK AUDIO SETTINGS
- Set "BASS", "MID" and "TREB" to the initial values and check that sound is normal.
OK: Malfunction disappears.
2 COMPARE WITH ANOTHER VEHICLE OF SAME MODEL
- Compare with another vehicle of the same model.
- Compare with another vehicle of the same model which does not have trouble to see if there is any difference in the sound quality.
OK: No difference is found
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Screen Flicker or Color Distortion
INSPECTION PROCEDURE
1 CHECK DISPLAY SETTING
Enter the display adjustment screen by pressing the
"DISPLAY" switch.
Reset display settings (contrast, brightness) and check
...
Map Disc cannot be Inserted
INSPECTION PROCEDURE
1 CHECK RADIO AND NAVIGATION ASSEMBLY
Check if a disc is inserted into the MAP disc slot.
Check if "DISC IN" is displayed.
OK:
"DISC IN&quo ...
Other materials:
Inspection procedure
1 BASIC INSPECTION
Conditions necessary for the power slide door to open:
Power slide door main switch is in the ON position
(switch free: orange paint on the top of the switch
appears).
Slide door is unlocked (door lock position switch is
in the ON position when the slide do ...
Diagnostic trouble code chart
If a trouble code is displayed during the DTCs check (sensor
check), check the circuit listed for the code in the table below
(Proceed to the page given for that circuit).
AIR CONDITIONING SYSTEM
HINT:
*1: If the cabin temperature is approximately -18.6°C (-
3.7°F) or lo ...
Installation
1. INSTALL SIDE REAR WINDOW WEATHERSTRIP LH
2. INSTALL QUARTER WINDOW LOCK ASSEMBLY LH
3. INSTALL POWER VENT WINDOW MOTOR
ASSEMBLY LH
4. INSTALL SIDE WINDOW ASSEMBLY REAR LH
5. INSTALL RR WINDOW SIDE GARNISH ASSEMBLY
LH
6. INSTALL RR WINDOW SIDE GARNISH ASSEMBLY
NO.2 LH
7. REMOVE QUARTER TR ...
