Inspection Procedure 16

INSPECTION PROCEDURE 16: Constant 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 traveled through
- Surrounding buildings
- Signal conditions
- Time period
If there are still problems with noise, even after performing inspection procedures 8 to 15, 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.