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Toyota Sienna Service Manual: No Sound can be Heard from Speakers

INSPECTION PROCEDURE

1 CHECK RADIO RECEIVER

  1. Check radio receiver setting.
  1.  Check that the volume is not set to "0".
  2.  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:

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. ...

Initialization not Completed
DTC C2177/77 Initialization not Completed DESCRIPTION Initialization is necessary after replacing any of the ECUs, tires with different tire pressure, or tire pressure warning valve and transmitter, after rotating the tires or when a new vehicle is delivered. WIRING DIAGRAM INSPECTI ...

Dtc clear
(A) when using the obd ii scan tool or intelligent tester: clearing the dtcs. (1) Connect the intelligent tester together with the CAN VIM (controller area network vehicle interface module) to the DLC3. (2) Turn the ignition switch to the ON position and turn the OBD II scan tool or the inte ...

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