Symptom Troubleshooting

Symptom Troubleshooting: Volume does not change

Volume does not change

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.

- On vehicles with navigation, audio button operation can be checked by doing the hard key status test in the audio-navigation unit check screen See the navigation system diagnostic mode.. Navigation System Diagnostic Mode (With Navigation)

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 Sound Quality Diagnosis - Left/Right Channel ID and no sound is heard from speaker(s) (display is normal).

- with navigation. No Sound Is Heard From the Speaker(s) (Display Is Normal) (With Navigation)

- without navigation. Symptom Troubleshooting



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 (With Navigation)

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