Volume Does Not Change

Audio System Symptom Troubleshooting - Volume does not change

Volume does not change

NOTE:

- Check the vehicle battery condition first 12 Volt Battery Test.
- Check the connectors for poor connections or loose terminals.
- Set the fader and balance positions to the center.
- If the volume button does not change volume with the audio remote switch on the steering wheel, go to Audio remote switch does not work properly (with navigation) Audio Remote Switch Does Not Work Properly (With Navigation), (without navigation) Audio Remote Switch Does Not Work Properly (Without Navigation).

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

2. Turn on the audio-navigation unit or 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 Audio system sound is weak or distorted, or No sound is heard from the speaker(s)(with navigation), (without navigation).

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

Does the volume change?

YES -

Operation is normal.

NO -

- With navigation: 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 Audio Unit Removal / Installation, and recheck. If the symptom/indication goes away, replace the original audio unit Audio Unit Removal / Installation.