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Toyota Sienna Service Manual: Poor Sound Quality in All Modes (Low Volume)

Toyota Sienna Service Manual / Navigation / Navigation system / Diagnostic trouble code chart / Poor Sound Quality in All Modes (Low Volume)

INSPECTION PROCEDURE

1 CHECK AUDIO SETTINGS

  1. 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

  1. Compare with another vehicle of the same model.
  1. 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:

Installation
1. INSTALL POWER POINT SOCKET ASSEMBLY  Engage the 2 claws to install the power point socket assembly. 2. INSTALL QUARTER TRIM FRONT PANEL ASSEMBLY LH 3. INSTALL BACK DOOR SCUFF PLATE 4. INSTALL BACK DOOR WEATHERSTRIP 5. INSTALL REAR DOOR WEATHERSTRIP LH 6. INSTALL REAR DOOR S ...

TS and CG Terminal Circuit
DESCRIPTION In the sensor check mode, a malfunction of the speed sensor that cannot be detected when the vehicle is stopped is detected while driving. Transition to the sensor check mode can be performed by connecting terminals TS and CG of the DLC3 and turning the ignition switch from off ...

Brake fluid
Checking fluid level The brake fluid level should be between the “MAX” and “MIN” lines on the tank. “MAX” line “MIN” line Adding fluid Lift the cover off. Make sure to check the fluid type and prepare the necessary item. Brake fluid can absorb moisture from t ...

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