NO USB AUDIO SOUND OUTPUT
NO USB AUDIO SOUND OUTPUT
SM2337304
id160300000600
Outline
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Possible cause
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• USB device malfunction
• USB port/SD card slot hub malfunction
• Connectivity master unit (CMU) malfunction
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Diagnostic Procedure
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Step |
Inspection |
Results |
Action |
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1
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VERIFY ALL SYSTEM DTCs
• Perform the DTC inspection. (Refer to the [DTC INSPECTION] in the workshop manual)
• Are any DTCs displayed?
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Yes
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Repair the malfunctioning location according to the applicable DTC troubleshooting.
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No
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Go to the next step.
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2
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INSPECT USB DEVICE FOR MALFUNCTION
• After obtaining the customer’s consent, replace with a USB device that was not used when the malfunction occurred.
• Select the USB audio mode by operating the commander switch or the center display.
• Is sound from the USB audio output?
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Yes
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System is normal. (Explain to the customer that the USB device or internal data has a malfunction)
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No
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Go to the next step.
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3
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INSPECT USB PORT/SD CARD SLOT HUB FOR MALFUNCTION
• Inspect the applicable part. (Refer to the [USB PORT/SD CARD SLOT HUB INSPECTION] in the workshop manual)
• Is the part normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
(Refer to the [USB PORT/SD CARD SLOT HUB REMOVAL/INSTALLATION] in the workshop manual)
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Repair completion verification
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VERIFY THAT VEHICLE IS REPAIRED
• Install/connect the part removed/disconnected during the troubleshooting procedure.
• Has the malfunction symptom been eliminated?
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Yes
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Complete the symptom troubleshooting. (Explain contents of repair to customer)
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No
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Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
(Refer to the [CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW] in the workshop manual)
If the CAN communication is normal, perform the diagnosis from Step 1.
• If the malfunction is not resolved, replace the connectivity master unit (CMU). (Refer to the [CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION] in the workshop manual)
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