Toyota Sienna Service Manual: No Sound can be Heard from Speakers
INSPECTION PROCEDURE
1 CHECK RADIO RECEIVER
- Check radio receiver setting.
- Check that the volume is not set to "0".
- Check that "MUTE" is off.
OK: The volume is not set to "0" and "MUTE" is off.
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Pressing Power Switch does not Turn on System
INSPECTION PROCEDURE
1 CHECK VEHICLE CONDITION
Check that conditions in the cabin are not likely to cause
condensation.
HINT:
This problem occurs when the cabin is humid and the
temperatur ...
Sound Quality is Bad Only when CD is Played (Volume is Too Low)
INSPECTION PROCEDURE
1 REPLACE CD WITH ANOTHER AND RECHECK
Replace the CD with another one and recheck.
Check if the problem recurs using another CD.
OK:
Malfunction disappears.
END ...
Other materials:
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 ...
Cold Start Ignition Timing Performance
DESCRIPTION
This monitor will run when the engine is started at -10 to 50°C (14 to 122°F)
of the engine coolant
temperature. The DTC will set after the engine idling for 13 seconds (2 trip
detection logic).
The DTC is designed to monitor the idle air control at cold start. When the
...
For rear air conditioning system
ON-VEHICLE INSPECTION
1. INSPECT REAR AIR MIX CONTROL SERVO MOTOR
(a) Inspect servo motor operation.
(1) Connect the positive (+) lead from the battery
to terminal 4 and negative (-) lead to terminal 5,
then check that the arm turns to "HOT" side
smoothly.
(2) Connect the po ...