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:
Cargo net hooks
Raise the hook to use.
Pattern 1
Pattern 2
NOTICE
To prevent damage to the cargo net hooks, avoid hanging things other
than
a cargo net on them.
Storage box (if equipped)
Engage the latch buckle. ...
Right Rear Wheel Speed Sensor Signal
DESCRIPTION
Refer to DTCs C0200/31, C0205/32, C1235/35 and C1236/36 (See page BC-92).
HINT:
DTC C0210/33 and C1238/38 are for the right rear speed sensor.
DTC C0215/34 and C1239/39 are for the left rear speed sensor.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 READ VALUE ON INTELL ...
Camshaft Position "B" Actuator Circuit
DESCRIPTION
The Variable Valve Timing (VVT) system includes the ECM, OCV and VVT
controller. The ECM sends a
target duty-cycle control signal to the OCV. This control signal regulates the
oil pressure supplied to the
VVT controller. Camshaft timing control is performed according to engine ...
