Audio System Sound Is Weak Or Distorted (Display Is Normal)

Audio System 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 Testing and Inspection.
- Check the connectors for poor connections or loose terminals.
- Do the individual speaker test Audio System Sound Quality Diagnosis.
- Set the fader and balance positions to the center.
- Check for aftermarket accessories including cell phones and chargers plugged into the vehicle accessory power sockets (including cell phones).

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, XM, 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 the XM radio, or the XM radio does not function, go to poor or no sound with XM radio.
- With navigation Poor Or No Sound With XM Radio (Audio-Navigation Unit Does Display XM Channels) (With Navigation)
- Without navigation Poor Or No Sound With XM Radio (Audio Unit Does Display XM Channels) (Without Navigation)
- If the sound quality is poor only with the audio disc changer, or the audio disc changer does not function, go to poor or no sound with audio disc changer Poor Or No Sound With Audio Disc Changer (With Navigation).
- If the sound quality is poor only with AM or FM radio, go to poor AM or FM radio reception or interference.
- With navigation ('07-09 models)
- With navigation ('10 model) Poor AM Or FM Radio Reception Or Interference (With Navigation)
- Without navigation Symptom Troubleshooting
- If sound is poor in all modes, go to sound quality diagnosis Audio System Sound Quality Diagnosis.