Diagnostic Procedure

Step	INSPECTION		Action
1	VERIFY MUSIC FILES IN USB DEVICE/iPod Is there any playable music file in the iPod?	Yes	Go to the next step.
1		No	System is normal. (No playable file in USB device/iPod) Go to Step 3.
2	INSPECT iPod Connect the iPod to a same-model vehicle (model/unit). Is the iPod connection detected/unit plays back.	Yes	Replace the center panel unit, then go to Step 3.
2		No	System is normal. (iPod malfunction or incompatible USB device.) Go to the next step.
3	VERIFY THAT REPAIRS HAVE BEEN COMPLETED Reconnect all the disconnected connectors. Connect the negative battery cable. Clear the center panel unit DTCs. (See CLEARING DTC [AUDIO] .) Perform the audio unit DTC inspection. (See DTC INSPECTION [AUDIO] .) Is the same DTC displayed?	Yes	Return to Step 1 and inspect for other possible causes. If the malfunction recurs, replace the center panel unit, then go to the next step. (See DTC TABLE [AUDIO] .)
3		No	Go to the next step.
4	VERIFY IF OTHER DTCs ARE DISPLAYED Are any other DTCs displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [AUDIO] .)
4		No	DTC troubleshooting completed.