Volume Does Not Change

Volume does not change

NOTE:
- Set the fader and balance positions to the center.
- Check the vehicle battery condition first.
- Always check the connectors for poor connection 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, XM, and disc).

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 speaker(s).

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

Does the volume change?

YES - Operation is normal.

NO - Replace the audio unit.