Toyota Tacoma (2015-2018) Service Manual: Noise Occurs

Toyota Tacoma (2015-2018) Service Manual / Navigation / Multi Info Display / Navigation System / Noise Occurs

PROCEDURE

1.	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 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	Proceed to
No malfunction is found	A
A speaker is installed incorrectly	B
Foreign objects are in the speaker	C
A speaker cone paper is broken	D

REINSTALL SPEAKER

REMOVE FOREIGN OBJECT

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.

OK:

The noise source cannot be determined.

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE NOISE SOURCE

Traffic Information is not Displayed

CAUTION / NOTICE / HINT NOTICE: Traffic information requires payment. An "XM Nav Traffic" contract must be made between the satellite radio company and the user. If the contrac ...

No Sound can be Heard from Speakers

PROCEDURE 1. CHECK AUDIO SETTINGS (a) Display the "Sound Settings" screen. (b) Set volume, fader and balance to the initial values and check that sound i ...

Other materials:

Correct driving posture
Drive in a good posture as follows: Sit upright and well back in the seat. Adjust the position of the seat forward or backward to ensure the pedals can be reached and easily depressed to the extent required. Adjust the seatback so that the controls are easily operable. Adjust the t ...

Steering Angle Sensor Zero Point Malfunction (C1290)
DESCRIPTION The skid control ECU (master cylinder solenoid) acquires steering angle sensor zero point every time the ignition switch is turned to ON and the vehicle is driven at 35 km/h (22 mph) or more for approximately 5 seconds. The ECU also stores the previous zero point. If the front wh ...

Removal
REMOVAL PROCEDURE 1. REMOVE MILLIMETER WAVE RADAR WIRE (a) for Type A: (1) Disconnect the 2 connectors. (2) Using a clip remover, disengage the 4 clamps to remove the millimeter wave radar wire. (b) for Type B: (1) Disc ...