USB device does not function

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.
Display audio type: Before doing this troubleshooting, check the hard error code;
- With navigation
- Without navigation

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 2.

NO

See the Owner's Manual for details about the USB device requirements and approved file types.
Problem verification 1
-1. On the customer's vehicle, connect the customer's USB device to the USB port A.

-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: With USB port B

Go to step 3.

YES: Without USB port B

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

NO: With USB port B

The failure is duplicated, go to step 4.

NO: Without USB port B

The failure is duplicated, go to step 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.

-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 and USB port for wear.

NO

The failure is duplicated, go to step 6.
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 5.

NO: With navigation

Replace the audio-navigation unit .

NO: Without navigation

Replace the audio unit .

Open wire check (USB1 lines)

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

-2. Disconnect the following connector.

Audio-navigation unit connector F (5P) (with navigation)Audio unit connector F (5P) (without navigation)

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

Test condition	Vehicle OFF (LOCK) mode
	Audio-navigation unit connector F (5P) (with navigation): disconnected Audio unit connector F (5P) (without navigation): disconnected

Test point 1:Audio-navigation unit connector F (5P) (with navigation) Audio unit connector F (5P) (without navigation)	Test point 2:USB port A 5P connector (female terminals):
No. 1	No. 1
No. 2	No. 4
No. 3	No. 2
No. 4	No. 3

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

Is there continuity?

YES: With navigation

Replace the audio-navigation unit .

YES: Without navigation

Replace the audio unit .

There is an open in the wire(s). Replace the affected shielded harness.

Open wire check (USB2 lines)