|
Audio System Symptom Troubleshooting - USB device does not function
USB device does not function
NOTE:
|
|
|
|
|
Check the USB's specifications: |
|
|
? |
Mass-storage class ready digital audio player with USB 2.0 port |
|
? |
More than 256 MB storage space |
|
? |
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 customer's USB device in a known-good vehicle of the same year and trim (if possible). Technologies change and are updated frequently which may result that USB devices may work in newer vehicles, but not in older vehicles of the same model. |
|
|
If Unsupported Ver appears on the display, the vehicle is OK, there is a software problem with the USB device. |
|
|
Check the connectors for poor connections or loose terminals. |
|
1. |
Determine possible failure area (USB device, others):
Determine possible failure area (USB device, others)
|
?1. |
Connect the customer's USB device to a known-good vehicle (same year/trim) that is equipped with a USB adapter, and check the USB device operation. | |
Does the USB device work properly in the known-good vehicle?
|
|
|
|
|
|
|
See the Owner's Manual for details about the USB device requirements and approved file types.? |
|
2. |
Problem verification:
Problem verification
|
?1. |
On the customer's vehicle, connect the customer's USB device to the USB port located on the center lower panel. |
|
?2. |
Turn the vehicle to the ON mode. |
|
?3. |
Check the USB device operation in the customer's vehicle. | |
Does the USB device work properly in the customer's vehicle?
|
|
|
Intermittent failure, the system is OK at this time. Inspect the connectors of the USB device and USB port for wear.? |
|
|
|
The failure is duplicated, go to step 3. |
|
3. |
Open wire check (USB1 lines):
Open wire check (USB1 lines)
|
?1. |
Turn the vehicle to the OFF (LOCK) mode. |
|
?2. |
Disconnect the following connector.
|
Audio unit connector F (5P) | |
| |
|
?3. |
Check for continuity between test points 1 and 2.
|
Test condition |
Vehicle OFF (LOCK) mode |
| |
Audio unit connector F (5P): disconnected | |
|
|
|
Test point 2:
USB port 5P connector |
|
No. 1 |
No. 1 |
|
No. 2 |
No. 4 |
|
No. 3 |
No. 2 |
|
No. 4 |
No. 3 | |
|
| |
Is there continuity?
|
|
|
|
|
|
|
There is an open in the wire(s) between the audio unit and the USB port. Replace the affected shielded harness.? | | 