Toyota Sienna Service Manual: Noise Occurs

Toyota Sienna Service Manual / Audio / visual / Audio and visual system / Diagnostic trouble code chart / Noise Occurs

INSPECTION PROCEDURE

1 NOISE CONDITION

Check in which direction the noise comes from (front left or right, or rear left or right).

Check in which direction the noise comes from.

OK: The location of the noise source can be determined

2 CHECK SPEAKERS

Check the installation conditions of the speaker units that are located near the noise source and that there are no cracks, scratches, deformation, or other failures.

Result

Result

3 CHECK NOISE CONDITIONS

Check the noise condition.

HINT: The radio has a noise prevention function to reduce noise when listening to the radio. If a loud noise occurs, check whether the ground at the antenna mounting base and the noise prevention unit are installed and wired correctly

CHECK NOISE CONDITIONS

HINT:

In the chart's left column, find the situation that matches the customer's complaint. Then, in the right column, find the part that is causing the noise. Check the noise filter on or for the part.
To save time and avoid a misdiagnosis, first make sure that the noise is not coming from outside the vehicle.
Noise should be removed in descending order of loudness.
Setting the radio to a frequency where no signal is received may make recognition of the noise problem easier.

OK: The noise source can not be determined.

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Disc cannot be Played/ No Playable Files/ Copyright Protection Error/ Disc cannot be Played/ No Playable Files/ Copyright Protection Error

DTC 62-7D Disc cannot be Played DTC 62-7E No Playable Files DTC 62-7F Copyright Protection Error DTC 63-7D Disc cannot be Played DTC 63-7E No Playable Files DTC 63-7F Copyright Protection Error ...

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 ...

Other materials:

Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 2. REMOVE ENGINE UNDER COVER NO.1 3. DRAIN AUTOMATIC TRANSAXLE FLUID (a) Remove the drain plug and gasket, and drain the ATF. (b) Install a new gasket and the drain plug. Torque: 49 N*m (500 kgf*cm, 36 ft.*lbf) 4. REMOVE AUTOMATIC TRANSA ...

Release Actuator Circuit
DESCRIPTION The fold seat control ECU receives a switch operation signal from the fold seat switch and activates the release actuator. The release actuator releases the lock of the stowed seat based on a drive voltage received from the ECU. WIRING DIAGRAM INSPECTION PROCEDURE 1 INSPECT ...

Manual headlight leveling dial (vehicles with discharge headlights)
The level of the headlight aim can be adjusted according to the number of passengers and the loading condition of the vehicle. Raises the level of the headlights Lowers the level of the headlights Guide to dial settings Daytime running light system (if equipped) Bulb type: To ...