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 | ![]() |
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 |
Proceed to |
---|---|
No malfunction is found. |
A |
A speaker is installed incorrectly. |
B |
Foreign matter is in the speaker. |
C |
A speaker cone paper is broken. |
D |
B | ![]() |
REINSTALL SPEAKER |
C | ![]() |
REMOVE FOREIGN MATTER |
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:
OK:
The noise source cannot be determined.
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPAIR OR REPLACE NOISE SOURCE |
Using the steering wheel audio switches
Some audio features can be controlled using the switches on the steering
wheel.
Operation may differ depending on the type of audio system or navigation
system. For details, refer to the manual provided with the audio system or
navigation system.
1. ...
Inspection
INSPECTION
PROCEDURE
1. CHECK PAD LINING THICKNESS
(a) Using a ruler, measure the pad lining thickness.
Standard thickness:
10.0 mm (0.394 in.)
Minimum thickness:
1.0 mm (0.0394 in.)
If the pad lining thickness is less than the m ...