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.

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 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 - Substitute a known-good audio unit and recheck. If the symptom/indication goes away, replace the original audio unit. If the symptom is still present, substitute a known-good audio panel and recheck. If the symptom/indication goes away, replace the original audio panel.