USB audio device does not work
NOTE:
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Check the vehicle battery condition first.
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Check the connectors for poor connections or loose terminals.
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Check the USB device requirement:
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Mass-storage class ready digital audio player with USB 2.0 port
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More than 256 MB of RAM
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Supports MP3, WMA, and AAC (encorded with the i-Tunes) files, DRM files are not supported
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Turn the ignition switch to ON (II) and turn on the audio unit.
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Push the AUX button to select USB mode.
Is USB NO DATA displayed?
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Turn the ignition switch to LOCK (0).
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Connect the customer's USB device to a known-good vehicle that equipped with the USB adapter and check the USB device operation.
Is the USB device working properly?
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YES
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NO
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USB device is faulty. Also check the USB cable and USB adapter connector condition.■
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Disconnect USB adapter unit connector B (5P).
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Check for continuity between the terminals of USB adapter unit connector B (5P) and USB adapter 5P connector according to the table.
USB adapterunit connector
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USB adapterconnector
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B1
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1
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B2
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2
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B3
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3
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B4
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4
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YES
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Substitute a known-good USB adapter cable and recheck. If the symptom/indication goes away, replace the original USB adapter cable. If the symptom/indication still present, go to
Step 9
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NO
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Open in the wire(s) between the USB adapter unit and the USB adapter. Replace the affected shielded harness.■
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Turn the ignition switch to LOCK (0).
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Remove the audio unit.
Check that the audio unit connectors and the USB adapter unit connectors properly connected.
Is the connectors properly connected?
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YES
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NO
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Connect the connectors and recheck.■
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Disconnect USB adapter unit connector A (14P).
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Turn the ignition switch to ON (II).
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