Noise Occurs

AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Noise Occurs

Noise Occurs

INSPECTION PROCEDURE

PROCEDURE

1. CHECK SPEAKER INSTALLATION
(a) Check that each speaker is securely installed.
OK:
Each speaker is securely installed.
NG -- INSTALL SPEAKER PROPERLY
OK -- Continue to next step.
2. IDENTIFY NOISE SOURCE
(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 chart's left column, find the situation that matches the customer's vehicle. Then, in the right column, find the part that is causing the noise. Check the noise filter on the part.
- To save time and avoid a misdiagnosis, first make sure that the noise is not originating from outside the vehicle.
- Troubleshoot noise problems in order of loudness, starting with the loudest noise.
- Setting the radio to a frequency that receives no signal may make recognition of the noise problem easier.

OK:
The noise source can be determined.
NG -- REPLACE RADIO RECEIVER ASSEMBLY
OK -- REPAIR OR REPLACE NOISE SOURCE