Noise Occurs

AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM (w/ Navigation System): Noise Occurs
- Noise Occurs

INSPECTION PROCEDURE

PROCEDURE

1. NOISE CONDITION

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

OK:

The location of the noise source can be determined.

NG -- CHECK NOISE CONDITION
OK -- Continue to next step.

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 malfunctions.

Result:





C -- REPLACE SPEAKER

B -- REMOVE FOREIGN OBJECT

A -- REINSTALL SPEAKER
D -- Continue to next step.

3. CHECK NOISE CONDITION

(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.





HINT
* In the left column of the chart, 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:





B -- REPAIR OR REPLACE NOISE SOURCE

A -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table