Volume Does Not Change

Volume Does Not Change

NOTE:
- 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 navigation unit check screen. See navigation diagnosis mode. System Diagnostic Mode
- Check the vehicle battery condition first.
- Check the connectors for poor connections 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 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-
- With navigation: Replace navigation unit.
- Without navigation: Replace audio unit.