Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
USB device does not function (with navigation)
- Check the vehicle battery condition first (see BATTERY TEST ).
- Check the connectors for poor connections or loose terminals.
- Check the USB device requirement:
- Mass-storage class ready digital audio player with USB 2.0 port
- More than 256 MB of RAM
- Support 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 clients 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 order vehicles of the same model.
- If UNSUPPORTED appears on the display, the vehicle is OK, there is a software problem with the USB device.
- Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
- Turn on the audio system.
- Press the HDD/AUX button, and check if it changes to USB mode.NOTE: Do not connect the USB device.
Is USB NO DATA displayed in the audio display?
YES -Go to step 5.
NO -Go to step 4.
- Go into the System Diagnostic Mode (see
SYSTEM DIAGNOSTIC MODE
), and check the System Link (see
SYSTEM LINK
).
Is the USB icon green?
YES -Substitute a known-good audio-navigation unit (including the HDD) (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).
NO -Go to step 11.
- Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
- Connect the client's USB device to a known-good vehicle (same year/trim) that is equipped with a USB adapter, and check the USB device operation.
Is the USB device working properly in the known-good vehicle?
YES -Go to step 7.
NO -If the audio display displays UNSUPPORTED or MEDIA ERROR, the USB device may not be supported or is defective. If the audio display displays USB NO MUSIC, the USB device may have no music files or wrong type music files are on the device. See the Owner's Manual for details on USB device requirements and approved file types.
- On the client's vehicle, connect the client's USB device to the USB port.
- Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
- Turn on the audio system.
- Check the USB device operation in the client's vehicle.
Does the USB device work properly in the client'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 -Check the navigation system hard error code (see HOW TO CHECK ERROR HISTORY (NAVIGATION DTCS) ).
- Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
- Disconnect audio-navigation unit connector F (7P).
- Check for continuity between audio-navigation unit connector F (7P) terminals No. 6 and No. 7.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Substitute a known-good audio-navigation unit (including the HDD) (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).
NO -Replace the USB main harness, then recheck.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.