USB device does not function (without navigation)
- Check the vehicle battery condition first (see 12 VOLT BATTERY TEST ).
- Check the connectors for poor connections or loose terminals.
- Check the USB device compatibility:
- Mass-storage class ready digital audio player with USB 2.0 port
- More than 256 MB of RAM
- Supports MP3, WMA, and AAC (encorded with the i-Tunes) 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 customers USB device in a known-good vehicle of the same year and trim (if possible). Technologies change and are updated frequently which may result in USB devices working in newer vehicles, but not in older vehicles of the same model.
- Turn the ignition switch to ON (II).
- Turn on the audio unit.
- Press the AUX button to select USB mode.NOTE: Do not connect the USB device.
Is USB NO DATA displayed in the audio display?
YES -go to step 4.
NO -go to step 14.
- Turn the ignition switch to LOCK (0).
- 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.
Is the USB device working properly in the known-good vehicle?
YES -go to step 6.
NO -lf the audio unit displays UNSUPPORTED or UNSUPPORTED VER, the USB device may not be supported or the wrong type of music files are on the device. If the audio unit displays USB NO SONG/iPod NO SONG, the USB device may have no music files. See the owner's manual for details on USB device compatibility and approved file types.
- On the customer's vehicle, connect the customer's USB device to the USB adapter.
- Turn the ignition switch to ON (II).
- Turn on the audio system.
- Check the USB device operation in the customer's vehicle.
Does the USB device work properly in the customer's vehicle?
YES -The system is OK at this time. Inspect the connectors of the USB device, USB cable and USB adapter for wear.
NO -go to step 10.
- Turn the ignition switch to LOCK (0).
- On the customer's vehicle, remove the USB device.
- Disconnect USB adapter unit connector B (5P).
- Check for continuity between terminals of USB adapter connector B (5P) and the USB adapter 5P connector according to the table.USB ADAPTER UNIT CONNECTOR CHART
USB adapter unit connector USB port connector B1 No. 4 B2 No. 3 B3 No. 2 B4 No. 1 B5 No. 5 Is there continuity?
YES -Substitute a known-good USB adapter control unit (see USB ADAPTER UNIT REPLACEMENT ), and recheck. If the symptom/indication goes away, replace the original USB adapter control unit. If the symptom/indication is still present, go to step 15.
NO -Replace the USB adapter, then recheck.
- Turn the ignition switch to LOCK (0).
- Measure the voltage between USB adapter unit connector A (14P) terminal No. 1 and body ground.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES -go to step 18.
NO -Go to step 16.
- Disconnect audio unit connector E (14P) and USB adapter control unit connector A (14P).
- Check for continuity between USB adapter unit connector A (14P) terminal No. 2 and audio unit connector E (14P) terminal No. 2.Fig 4: Checking Continuity Between USB Adapter Unit Connector A (14P) And Audio Unit Connector E (14P) Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Replace the audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ).
NO -Repair an open in the wire between the USB adapter unit and the audio unit.
- Disconnect audio unit connector E (14P) and USB adapter control unit connector A (14P).
- Check for continuity between USB adapter control unit connector A (14P) terminal No. 11 and audio-navigation unit connector E (14P) terminal No. 11.Fig 5: Checking Continuity Between USB Adapter Unit Connector A (14P) Terminal No. 11 And Audio-Navigation Unit Connector E (14P) Terminal No. 11
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Go to step 20.
NO -Repair an open in the wire between the USB adapter unit and the audio-navigation unit.
- Check for continuity between USB adapter control unit connector A (14P) terminal No. 2 and body ground.Fig 6: Checking Continuity Between USB Adapter Unit Connector A (14P) Terminal No. 2 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Repair a short to body ground in the wire between the USB adapter control unit and the audio-navigation unit.
NO -Go to step 21.
- Check for continuity between USB adapter unit connector A (14P) terminal No. 2 and audio-navigation unit connector E (14P) terminal No. 2.Fig 7: Checking Continuity Between USB Adapter Unit Connector A (14P) And Audio-Navigation Unit Connector E (14P) Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Go to step 22.
NO -Repair an open in the wire between the USB adapter unit and the audio-navigation unit.
- Check for continuity between body ground and audio-navigation unit connector E (14P) according to the table.AUDIO-NAVIGATION UNIT CONNECTOR CHART
Audio-Navigation unit connector Wire color E9 YEL E10 BRN Is there continuity?
YES -There is a short to body ground in the wire(s) between the audio-navigation unit and the USB adapter control unit. Replace the affected shielded harness.
NO -Go to step 23.
- Check for continuity between terminals of audio unit connector E (14P) according to the table.AUDIO UNIT CONNECTOR CHART
From terminal To terminals E3 (GRY) E9 (YEL), E10 (BRN) E9 (YEL) E10 (BRN) Is there continuity between any of the terminals?
YES -There is a short in the wires between the audio unit and the USB adapter unit. Replace the affected shielded harness.
NO -go to step 24.
- Check for continuity between terminals of audio unit connector E (14P) and USB adapter unit connector A (14P) according to the table.AUDIO UNIT CONNECTOR CHART
Audio unit connector USB adapter unit connector Wire color E9 A9 YEL E10 A10 BRN Is there continuity?
YES -Substitute a known-good USB adapter unit (see USB ADAPTER UNIT REPLACEMENT ), then reconnect all of the connectors, and recheck. If the symptom/indication goes away, replace the original USB adapter unit (see USB ADAPTER UNIT REPLACEMENT ). If the symptom/indication is still present, replace the audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ).
NO -There is an open in the wire(s) between the audio unit and the USB adapter unit. Replace the affected shielded harness.