Audio System - USB Device Is Not Detected
SI B65 07 08Audio, Navigation, Monitors, Alarms, SRS
April 2008
Technical Service
SUBJECT
USB Device Is Not Detected
MODEL
E90, E91, E92, E93 *(3 Series)
E60, E61 *(5 Series)
E63, E64 *(6 Series)
*with option 6FL (USB-/AUDIO INTERFACE)
Vehicles produced from September 4th, 2007 to September 19th, 2007
SITUATION
The name of the connected USB device is not displayed in the "AUX-In" menu.
No tracks are displayed and no songs can be played through the USB audio interface.
CAUSE
The USB-HUB control unit is defective.
If the USB-HUB control unit is without power (vehicle in deep sleep mode or battery disconnected) for a period of two days or more, the internal capacitors get discharged. The next time the USB-HUB control unit is powered up, the increased current can cause permanent damage to the internal AVX fuse.
CORRECTION
Follow the test plan in Diagnostics using the latest diagnosis version.
1. Connect the vehicle to a battery charger.
2. Perform a short test.
3. Select "Function selection".
4. Select "Complete vehicle".
5. Select "Body".
6. Select "Audio, Video, Telephone, Navigation" in the left column.
7. Select "Telecommunication" in the center column.
8. Select "ULF-SBX-H-interface box High".
9. Select "Read out USB device data" and press the "Test plan" button.
10. Highlight "Read out USB device data B8400_00126" in the "Diagnostics test plan" screen and press the continue button (green arrow pointing to the right).
11. Connect a USB device (iPod or USB stick) to the USB audio interface and continue.
12. Follow the menu in "Diagnosis Test information" for the test module "B8400_00126/USB device data".
13. In the next screen, the "Vendor ID and Product ID" of the current and previously connected USB devices is displayed.
14. If "TEL_Antwort" or nothing at all is displayed, the device is not recognized or no device is connected.
15. When an iPod is connected via the Y-cable, check the function of the Y-cable first by connecting a Y-cable that functions properly.
16. Connect a USB stick or iPod (via Y-cable) that functions properly.
17. If the connected USB device is still not recognized, replace the USB-HUB control unit.
18. When ending the test module, a diagnosis code is displayed. Be sure to include the code in the "Comments" section of the warranty claim.
PARTS INFORMATION
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.
Disclaimer