Volume Does Not Change

Audio System Symptom Troubleshooting - Volume does not change

Volume does not change

NOTE:

- Check the vehicle battery condition first Battery Test.
- Check the connectors for poor connections or loose terminals.
- Set the fader and balance positions to the center.
- On vehicles with navigation, audio button operation can be checked by doing the hard key status testing the audio-navigation unit check screen. See the navigation system diagnostic mode Navigation System Diagnostic Mode.

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 the sound normal?

YES -

Go to step 3.

NO -

Go to sound quality diagnosis Audio System Sound Quality Diagnosis and no sound is heard from the speaker(s) (display is normal).

- with navigation.�
- without navigation No Sound Is Heard From The Speaker(s) (Display Is Normal) (Without Navigation).�

3. Operate the volume knob to see if the volume changes.

Does the volume change?

YES -

Operation is normal at this time.�

NO -

- With navigation: Replace audio-navigation unit Audio-Navigation Unit Removal/Installation.
- Without navigation: Replace audio unit Audio Unit Removal/Installation (Without Navigation).�