The USB adapter data cannot be replayed. < Vehicles with MMCS >: Diagnosis

Required Special Tools: 

• MB991223: Harness Set
• MB992006: Extra Fine Probe

1. STEP 1. Check the multivision display operation. 

   Check if the multivision display work normally and the sound is output.

   Q: Is the check result normal? 

   • YES:  Go to Step 2.
   • NO:  Troubleshoot the MMCS (Refer to TROUBLE SYMPTOM CHART ).
2. STEP 2. Check the USB adapter. 

   Check that the continuity exists between the front side terminals of USB adapter and rear side terminals of USB adapter.

   Q: Is the check result normal? 

   • YES:  Go to Step 3.
   • NO:  Replace the USB adapter.
3. STEP 3. Check the USB cable. 

   Check that the USB cable is connected to the USB adapter or USB box normally. Or check the USB cable for damage such as bend.

   Q: Is the check result normal? 

   • YES:  Go to Step 4.
   • NO:  Replace or repair the USB cable.
4. STEP 4. Check the trouble symptom. 

   Check that the sound is output from the speaker.

   Q: Is the check result normal? 

   • YES:  The trouble can be an intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
   • NO:  Replace the multivision display.