Inspection Procedure 15

INSPECTION PROCEDURE 15: Ever-present noise.

DIAGNOSIS

Use the Symptom Chart to diagnose the possible cause(s) of the noise. Noise is often created by the following factors:

- Traveling conditions of the vehicle

- Terrain of area travelled through

- Surrounding buildings

- Signal conditions

- Time period
If
there are still problems with noise, even after performing inspection procedures 7 to 14, obtain information on the factors listed above. Determine whether the problem occurs on AM or FM, the station names, frequencies, etc. and contact the radio manufacturer's service center.