Audio And Visual System (For Sedan) Noise Occurs
INSPECTION PROCEDURE
CHECK SPEAKER INSTALLATION
AUDIO AND VISUAL SYSTEM (for Sedan) - Noise Occurs |
INSPECTION PROCEDURE
| 1.CHECK SPEAKER INSTALLATION |
Check that each speaker is securely installed.
- OK:
- Speakers are installed securely.
- HINT:
- The radio has a noise prevention function to reduce noise when listening to the radio. If severe noise occurs, check whether the ground at the antenna mounting base and the noise prevention unit are installed and wired correctly.
Condition in Which Noise Occurs
| Noise Type
|
Increases when accelerator pedal is depressed, and stops immediately when engine is stopped
| Generator noise
|
When A/C or heater is operating
| Blower motor noise
|
- When vehicle is rapidly accelerated on unpaved road
- When ignition switch is ON
| Fuel pump noise
|
- When horn switch is pressed and released
- When horn switch is pressed and held down
| Horn noise
|
Occurs faintly when engine is running, and stops immediately when engine is stopped
| Ignition noise
|
When turn signal is operating
| Flasher noise
|
When window washer is operating
| Washer noise
|
When engine is running, and continues even when engine is stopped
| Engine coolant temperature noise
|
When wipers are operating
| Wiper noise
|
When brake pedal is depressed
| Stop light switch noise
|
Other than above
| Static electricity on vehicle
|
- HINT:
- Use the table above to identify 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.