Volume Does Not Change (With Premium Audio)

Audio System Symptom Troubleshooting - Volume does not change

Volume does not change (with premium audio)

NOTE:

- Check the vehicle battery condition first Battery Test.
- Set the fader and the balance positions to the center.
- Check the connectors for poor connections or loose terminals.

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

2. Turn on the audio 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 or No sound is heard from the speaker(s) (display is normal) troubleshooting No Sound Is Heard From the Speaker(s) (Display Is Normal) (With Premium Audio).

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 switch panel Audio Switch Panel Removal / Installation, and recheck. If the symptom/indication goes away, replace the original audio switch panel Audio Switch Panel Removal / Installation. If the symptom/indication is still present, replace the audio unit Audio Unit Removal / Installation.