Volume Does Not Change

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.

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

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

Is the sound normal?
YES - Go to step 3.

NO - Go to Sound Quality Diagnosis Sound Quality Diagnosis - Left/Right Channel ID or no sound is heard from speaker(s) with premium audio system No Sound Is Heard From the Speaker(s) (Display Is Normal) (With Premium Audio System), without premium audio system. No Sound Is Heard From the Speaker(s) (Display Is Normal) (Without Premium Audio System)


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

Does the volume change?
YES - Operation is normal.

NO - Substitute a known-good audio unit with navigation, Audio Unit Removal/Installation (With Navigation) without navigation, Audio Unit Removal/Installation (Without Navigation) and recheck. If the symptom/indication goes away, replace the audio unit with navigation, Audio Unit Removal/Installation (With Navigation) without navigation. Audio Unit Removal/Installation (Without Navigation)