Volume Does Not Change

Audio System Symptom Troubleshooting - Volume does not change

Volume does not change

NOTE:

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

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

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

Is the sound normal?

YES -

Go to step 3.

NO -

Go to audio system sound is weak or distorted Audio System Sound Is Weak Or Distorted (Display Is Normal), or no sound is heard from the speaker(s); with rear entertainment system and/or navigation No Sound Is Heard From The Speaker(s) From All Inputs (Display Is Normal) (With Rear Entertainment System And/Or Navigation), without navigation and rear entertainment system No Sound Is Heard From The Speaker(s) From All Inputs (Display Is Normal) (Without Navigation And Rear Entertainment System).�

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

Does the volume change?

YES -

Operation is normal at this time.�

NO -

Substitute a known-good audio unit Audio Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio unit Audio Unit Removal/Installation.�