Menu +
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors

NO USB AUDIO SOUND OUTPUT

NO USB AUDIO SOUND OUTPUT

SM2337304


id160300000600



Outline

Possible cause
• USB device malfunction
• USB port/SD card slot hub malfunction
• Connectivity master unit (CMU) malfunction



Diagnostic Procedure

Step

Inspection

Results

Action

1
VERIFY ALL SYSTEM DTCs
• Perform the DTC inspection. (Refer to the [DTC INSPECTION] in the workshop manual)
• Are any DTCs displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
Go to the next step.
2
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?
Yes
System is normal. (Explain to the customer that the USB device or internal data has a malfunction)
No
Go to the next step.
3
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?
Yes
Go to the next step.
No
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)
Repair completion verification
VERIFY THAT VEHICLE IS REPAIRED
• Install/connect the part removed/disconnected during the troubleshooting procedure.
• Has the malfunction symptom been eliminated?
Yes
Complete the symptom troubleshooting. (Explain contents of repair to customer)
No
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)