Symptom Troubleshooting

Audio System Symptom Troubleshooting - USB input sound is low or cannot be heard

USB input sound is low or cannot be heard (with navigation)

NOTE:

- Check the vehicle battery condition first Battery Test.
- Check the connectors for poor connections or loose terminals.
- Not all players and player functions work with the USB adapter. Please see the Owner's Manual for more information. Always test the customers USB device in a known-good vehicle of the same year and trim (if possible). Technologies change and are updated frequently which may result in USB devices working in newer vehicles, but not in older vehicles of the same model.

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

2. Turn on the audio unit and check to see if there is a specific speaker that has no sound.

Do all speakers make a sound?

YES -

Go to step 3.

NO -

Go to No sound is heard from the speaker(s) No Sound Is Heard From The Speaker(s) (Display Is Normal) (With Navigation).

3. Turn the ignition switch to LOCK (0).

4. Connect the customer's USB device to a known-good vehicle (same year/trim) equipped with an USB adapter, and check the USB device operation.

Is the USB device working properly?

YES -

Go to step 5.

NO -

The USB device is faulty. Also check the USB adapter and the USB adapter connector condition.

5. On the customer's vehicle, connect the customer's USB device to the USB adapter.

6. Turn the ignition switch to ON (II), and turn on the audio-navigation unit.

7. Check if the USB device can be operated with the audio-navigation unit (Folders or Files UP/DOWN, etc.).

Can the USB device be operated but no sound is heard?

YES -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).

NO -

If the sound is normal, USB device is OK at this time. If the USB device cannot be operated, go to USB audio device does not function Symptom Troubleshooting.