Symptom Troubleshooting

Audio System Symptom Troubleshooting - USB device does not function

USB device does not function (with navigation)

NOTE:

- Check the vehicle battery condition first 12 Volt Battery Test.
- Check the connectors for poor connections or loose terminals.
- Check the USB device compatibility:
- Mass-storage class ready digital audio player with USB 2.0 port
- More than 256 MB of RAM
- Supports MP3, WMA, and AAC (encoded with the iTunes) files, DRM files are not supported

- 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-navigation unit.

3. Press the CD/AUX button to select USB mode.

NOTE: Do not connect the USB device at this time.

Is NO DATA displayed in the navigation display?

YES -

Go to step 4.

NO -

Substitute a known-good audio-navigation unit Audio-Navigation Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.

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

5. Connect the customer's USB device to a known-good vehicle (same year/trim) that is equipped with a USB adapter control unit, and check the USB device operation.

Is the USB device working properly in the known-good vehicle?

YES -

Go to step 6.

NO -

If UNSUPPORTED is displayed in the audio-navigation unit display, the USB device may not be supported or the wrong type music files are on the device. If NO SONG is displayed in the audio-navigation unit display, the USB device may have no music files. See the owner's manual for details on USB device requirements and approved file types.

6. On the customer's vehicle, connect the customer's USB device to the USB port.

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

8. Turn on the audio-navigation unit.

9. Check the USB device operation in the customer's vehicle.

Does the USB device work properly in the customer's vehicle?

YES -

The system is OK at this time. Inspect the connectors of the USB device, USB port and USB adapter for wear.

NO -

Substitute a known-good audio-navigation unit Audio-Navigation Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.