USB device does not function (With Display Audio (7-inch Screen), Without Navigation)

NOTE: 

• Check the vehicle 12 volt battery condition first .
• 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. DTC check:

   - 1. Turn the vehicle to the ON mode.

   - 2. Check for hard error codes - Refer to: How to Troubleshoot the Audio System,  or Audio System Self-Diagnostic Function .

   Are there any audio DTCs indicated?

   YES 

   Go to indicated DTC's troubleshooting.

   NO 

   Go to step 2.

2. Determine possible failure area (USB device, others):

   - 1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. 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?

   YES 

   Go to step 3.

   NO 

   See the Owner's Manual for details about the USB device requirements and approved file types.

3. Problem verification 1:

   - 1. On the customer's vehicle, connect the customer's USB device to the USB port A 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?

   YES 

   Go to step 5.

   NO 

   The failure is duplicated, go to step 4.

4. Determine possible failure area (USB1 line, others):

   - 1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. Disconnect the customer's USB device from the USB port A.

   - 3. Connect the customer's USB device to the USB port B located in the center console.

   - 4. Turn the vehicle to the ON mode.

   - 5. Check the USB device operation in the customer's vehicle.

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

   YES 

   Go to step 6.

   NO 

   Replace the audio unit - Refer to: Audio Unit Removal and Installation(With Normal Audio), or Audio Unit Removal and Installation(With Display Audio (7-inch Screen)), or Audio Unit Removal and Installation(With Color Audio (5-inch Screen)) .

5. Problem verification 2:

   - 1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. Disconnect the customer's USB device from the USB port A.

   - 3. Connect the customer's USB device to the USB port B located in the center console.

   - 4. Turn the vehicle to the ON mode.

   - 5. Check the USB device operation in the customer's vehicle.

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

   YES 

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

   NO 

   The failure is duplicated, go to step 7.

6. 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 1:Audio unit connector F (5P) - Refer to: Audio Unit Connector for Inputs and Outputs(With Normal Audio),  or Audio Unit Connector for Inputs and Outputs(With Display Audio (7-inch Screen)),  or Audio Unit Connector for Inputs and Outputs(With Color Audio (5-inch Screen))	Test point 2:USB port A 5P connector
   No. 1	No. 4
   No. 2	No. 1
   No. 3	No. 3
   No. 4	No. 2

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   Replace the audio unit - Refer to: Audio Unit Removal and Installation(With Normal Audio), or Audio Unit Removal and Installation(With Display Audio (7-inch Screen)), or Audio Unit Removal and Installation(With Color Audio (5-inch Screen)) .

   NO 

   There is an open in the wire(s) between the audio unit and the USB port A. Replace the affected shielded harness or the USB adapter .

7. Open wire check (USB2 lines):

   - 1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. Disconnect the following connector.

   Audio unit connector G (5P)

   - 3. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Audio unit connector G (5P): disconnected

   Test point 1:Audio unit connector G (5P) - Refer to: Audio Unit Connector for Inputs and Outputs(With Normal Audio),  or Audio Unit Connector for Inputs and Outputs(With Display Audio (7-inch Screen)),  or Audio Unit Connector for Inputs and Outputs(With Color Audio (5-inch Screen))	Test point 2:USB port B 5P connector
   No. 1	No. 4
   No. 2	No. 1
   No. 3	No. 3
   No. 4	No. 2

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   Replace the audio unit - Refer to: Audio Unit Removal and Installation(With Normal Audio), or Audio Unit Removal and Installation(With Display Audio (7-inch Screen)), or Audio Unit Removal and Installation(With Color Audio (5-inch Screen)) .

   NO 

   There is an open in the wire(s) between the audio unit and the USB port B. Replace the affected shielded harness or the USB adapter .