Toyota Venza: Noise Occurs

Toyota Venza Service Manual / Navigation / Multi Info Display / Navigation System / Noise Occurs

PROCEDURE

1.	CHECK NOISE CONDITION

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

OK:

The location of the noise source can be determined.

GO TO STEP 3

2.	CHECK SPEAKERS

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

Result	Proceed to
No malfunction is found.	A
A speaker is installed incorrectly.	B
Foreign matter is in a speaker.	C
A speaker cone paper is broken.	D

REINSTALL SPEAKER

REMOVE FOREIGN MATTER

REPLACE SPEAKER

3.	CHECK NOISE CONDITIONS

(a) 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.

Condition under which Noise Occurs	Noise Source
Noise increases when the accelerator pedal is depressed, but stops when the engine is stopped.	Generator
Noise occurs during A/C or heater operation.	Blower motor
Noise occurs when the horn switch is pressed and released or when pressed and held.	Horn
Noise occurs synchronously with the turn signal blinking pattern.	Flasher
Noise occurs during window washer operation.	Washer
Noise occurs during wiper operation.	Wiper
Noise occurs when the brake pedal is depressed.	Stop light switch
Others	Static electricity

HINT:

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

Result	Proceed to
The noise source cannot be determined.	A
The noise source can be determined.	B

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE NOISE SOURCE

Satellite Radio Broadcast cannot be Selected or After Selecting Broadcast, Broadcast cannot be Added into Memory

CAUTION / NOTICE / HINT NOTICE: Some satellite radio broadcasts require payment. A contract must be made between a satellite radio company and the user. If the contract expires, it will not be p ...

Traffic Information is not Displayed

PROCEDURE 1. CHECK DISPLAY (a) Check which communication is not being used for displaying traffic information. HINT: Display of traffic information received via HD ...

Other materials about Toyota Venza:

Data List / Active Test
DATA LIST / ACTIVE TEST 1. DATA LIST Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because in ...

Inspection
INSPECTION PROCEDURE 1. INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (w/o Smart Key System) (a) Measure the voltage according to the value(s) in the table below. Text in Illustration *1 Component with harness c ...

Front Power Seat does not Operate with Front Power Seat Switch
DESCRIPTION Signals are input into the position control ECU and switch assembly. The built-in ECU manages the signals received from the position control ECU and switch assembly, and operates each motor. If the position control ECU and switch assembly rece ...