Volume Does Not Change

Audio System Symptom Troubleshooting - Volume does not change

Volume does not change

NOTE:

- Check the vehicle battery condition first Testing and Inspection.
- 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 unit check screen. See navigation diagnostic mode.�
- '07-09 models,
- '10-11 models Navigation System Diagnostic Mode

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 Volume Does Not Change.

NO -

Go to Audio system sound is weak or distorted, or No sound is heard from speakers.

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 ('07-09 models): Substitute a known-good audio-navigation unit Audio-Navigation Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.�
- With navigation ('10-11 models): Substitute a known-good audio-navigation unit Audio-Navigation Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.�
- Without navigation: Substitute a known-good audio unit, and recheck. If the symptom/indication goes away, replace the original audio unit.�