Symptom Troubleshooting

Symptom Troubleshooting: Audio system sound is weak or distorted (display is normal)

Audio system sound is weak or distorted (display is normal)

NOTE:

- Check the vehicle battery condition first.

- Check the connectors for poor connections or loose terminals.

- Set the fader and balance positions to the center.

1. Turn the ignition switch to ON (II).

2. Turn on the audio unit or audio-navigation unit, and check for sound in each mode (AM, FM, and CD).

Is there sound from the speakers, and is the sound quality normal in each mode?
YES - Intermittent failure. The system is OK at this time. Check for loose connections at the audio-navigation unit, the audio unit, and each speaker.

NO - Speakers all work normally, but the sound quality is poor.

- If the sound quality is poor only with AM or FM radio, go to poor AM or FM radio reception or interference.
- with navigation Symptom Troubleshooting

- without navigation Symptom Troubleshooting

- If sound is poor in all modes, go to sound quality diagnosis. Sound Quality Diagnosis - Left/Right Channel ID