Audio System - Front Center Speaker Buzzing Noises
07-037December 4, 2010
Applies To:
2007 MDX With Navigation - From VIN 2HNYD2.. .7H500001 thru 2HNYD2...7H516118
2007 MDX Without Navigation - ALL
2008 MDX Without Navigation - From VIN 2HNYD2...8H500001 thru 2HNYD2...8H514947
*2009 MDX - From VIN 2HNYD2...9H500001 thru 2HNYD2...9H528581*
Buzzing From Front Center Speaker
(Supersedes 07-037, dated April 10, 2008, to revise the information marked by the asterisks)
*REVISION SUMMARY
Under Applies To, some 2009 models were added.*
SYMPTOM
The front center speaker buzzes when the audio is at medium to high volume.
PROBABLE CAUSE
The speaker grille vibrates against the center upper panel.
CORRECTIVE ACTION
Replace the center upper panel.
PARTS INFORMATION
WARRANTY CLAIM INFORMATION
The normal warranty applies.
Operation Number: 8411N2
Flat Rate Time: 0.2 hour
Failed Part: P/N 77271-STX-A11ZA
Defect Code: 00401
Symptom Code: 04201
Template ID:
With navigation:
07-037A (graphite black)
07-037B (medium gray)
07-037C (beige)
Without navigation:
07-037D (graphite black)
07-037E (medium gray)
07-037F (beige)
Skill Level: Repair Technician
TOOL INFORMATION
Diagnostic CD: T/N 07AAZ-SDBA100
DIAGNOSIS
Play the diagnostic CD to recreate the noise complaint. When you hear the buzz, apply pressure to the speaker grille with your hand.
^ If the noise goes away, go to REPAIR PROCEDURE.
^ If the noise does not go away, disregard this service bulletin and continue with your normal diagnosis.
REPAIR PROCEDURE
1. Remove the center upper panel:
^ Refer to page 20-121 of the 2007-09 MDX Service Manual, or
^ Online, enter keyword UPPER, and select
Dashboard Center Upper Panel Removal/
Installation from the list.
2. Transfer the speaker (two screws) from the original center upper panel to the new one.
3. Install the center upper panel.
4. Make sure the noise is gone by playing the diagnostic CD.
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