Toyota Tacoma (2015-2018) Service Manual: 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.
| NG | .gif) |
GO TO STEP 3 |
|
.gif)
|
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 |
| B | |
REINSTALL SPEAKER |
| C | |
REMOVE FOREIGN OBJECT |
| D | |
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.
| OK | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
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:
Installation
INSTALLATION
PROCEDURE
1. INSTALL ENGINE WATER PUMP ASSEMBLY
(a) Install the engine water pump assembly and a new gasket to the timing
chain cover assembly with the 15 bolts.
Torque:
for Bolt A and B :
11 N·m {112 kgf·cm, 8 ft·lbf}
for Bolt C :
21 N·m {214 kgf ...
Parking Brake Switch
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT PARKING BRAKE SWITCH ASSEMBLY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Text in Illustration
On
Off
...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
After replacing the stereo component tuner assembly of vehicles subscribed
to pay-type satellite radio broadcasts, XM radio ID registration is necessary
(w/ SDARS System).
HINT:
Use the table below to help determine the cause of proble ...
