Volume Does Not Change (Without Navigation)

Symptom Troubleshooting: Volume does not change

Volume does not change (without navigation)

NOTE:

- Check the vehicle battery condition first.

- Check the connectors for poor connections or loose terminals.

- Set the fader and balance positions to the center.

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

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 Sound Quality Diagnosis Sound Quality Diagnosis - Left/Right Channel ID or no sound is heard from speaker(s). No Sound Is Heard From the Speaker(s) (Display Is Normal) (Without Navigation)


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

Does the volume change?
YES - Operation is normal.

NO - Substitute a known-good audio unit, Audio Unit Removal/Installation (Without Navigation) and recheck. If the symptom/indication goes away, replace the original audio unit.