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
Radio Broadcast cannot be Received or Poor Reception
INSPECTION PROCEDURE
1 CHECK RADIO RECEIVER
Check the radio's automatic station search function.
Check the radio's automatic station search function
by activating it.
OK:
The ra ...
Vehicle Speed Signal Circuit between Radio Receiver and Combination
Meter
DESCRIPTION
This circuit is necessary for the ASL (Auto Sound Leveliser) built into the
radio receiver.
Speed signals are received from the combination meter and used for the ASL.
The ASL fun ...
Other materials:
Rear side sunshades
Rear door window
Rear quarter window
Pull the tab up.
Secure the sunshade using the hooks.
To retract the sunshade, pull the tab up slightly to unhook the sunshade,
and lower the sunshade slowly.
NOTICE
To ensure normal operation of the rear sunshades, observe ...
CD-ROM Abnormal/ CD-ROM Abnormal
DTC 62-43 CD-ROM Abnormal
DTC 63-43 CD-ROM Abnormal
DESCRIPTION
DTC No.
DTC Detecting Condition
Trouble Area
62-43
CD-ROM operation is abnormal
CD
Radio receiver
63-43
CD-ROM operation is abnormal
INSPECTION PROCEDURE
HIN ...
Removal
HINT:
Use the same procedures for the RH side and LH side.
The procedures listed below are for the LH side.
1. PRECAUTION
CAUTION:
Be sure to read "PRECAUTION" thoroughly before
servicing.
2. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
NOTICE:
Wait for 90 se ...