ANC on 2006 EX-L

[duckloads]

I've read everything I can on the ANC induced drumming noise on my 2006 EX-L. I've turned the system off via the no. 1 & 6 preset buttons on the radio, and the noise goes away. It seems to reset itself when I restart the car.

Has anybody learned how to fix or permanently disarm the system?

[PILOTPETE]

Here's the Service Bulletin that addresses your problem. Did hear of someone that had the Dealership disable the ANC but didn't say how.

Reference Bulletin 06-092, 12/22/06

Service Bulletin
© 2006 American Honda Motor Co., Inc. – All Rights Reserved ATB 34078 (0612) 1 of 1
CUSTOMER INFORMATION: The information in this bulletin is intended for use only by skilled technicians who have the proper tools, equipment,
and training to correctly and safely maintain your vehicle. These procedures should not be attempted by “do-it-yourselfers,” and you should not assume
this bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an
authorized Honda automobile dealer.
December 22, 2006
06-092
Applies To: 2006 Pilot – All LX 2WD models
2007 Pilot – LX 2WD models from VIN 5FNYF2...7B000001 thru 5FNYF2...7B006392
Booming or Humming Noise From Speakers While Driving
SYMPTOM
A booming or humming noise is heard from the
speakers while driving with the radio on or off.
PROBABLE CAUSE
A faulty ANC (active noise control) unit.
CORRECTIVE ACTION
Replace the ANC control unit.
PARTS INFORMATION
ANC Control Unit: P/N 39200-STW-A02
H/C 8563413
WARRANTY CLAIM INFORMATION
In warranty: The normal warranty applies.
Operation Number: 0101C9
Flat Rate Time: 0.6 hour
Failed Part: P/N 39200-STW-A01
H/C 8159055
Defect Code: 03217
Symptom Code: 04201
Template ID: 06-092A
Skill Level: Repair Technician
Out of warranty: Any repair performed after warranty
expiration may be eligible for goodwill consideration by
the District Parts and Service Manager or your Zone
Office. You must request consideration, and get a
decision, before starting work.
DIAGNOSIS
1. Start the vehicle.
2. Turn the radio on, and make sure it operates
normally.
3. Turn the radio off.
4. Press and hold the preset buttons number 1 and
number 6, then press the VOL push PWR button.
The audio system enters its diagnostic mode and
Diagnosis (or Diag) appears on the display.
Release the preset buttons.
5. Press the number 1 preset button. ANC ON
appears on the display.
6. Press the number 1 preset button again to turn the
ANC OFF. You should hear a humming noise
coming from the speakers for about 60 seconds.
NOTE:
• To turn the humming off, press the number 1
preset button to turn the ANC ON, and wait for
the hum to stop. Press the number 1 preset
button again to turn the ANC OFF.
• Repeatedly pressing the number 1 preset button
cycles the audio unit ANC ON and ANC OFF, but
the ANC control unit won’t hum until the ignition
switch is turned on and off, and you put the audio
system back into Diagnosis mode.
• When the ignition switch is turned on and off
again, the audio system defaults to its ANC ON
mode.
7. With the ANC OFF (audio unit on), test-drive the
vehicle as described by the customer. If you can’t
reproduce the booming or humming noise, go to
the REPAIR PROCEDURE.
8. If you can still hear the booming or humming noise,
disregard this bulletin and do the ANC
troubleshooting in the service manual.
REPAIR PROCEDURE
1. Replace the ANC control unit.
• Refer to page 22-345 of the 2006–07 Pilot
Service Manual, or
• Online, enter keyword ACTIVE and select Active
Noise Control Removal/Installation (2WD)
from the list.
2. Test-drive the vehicle to confirm the repair.

[duckloads]

Thanks Pete. Do you know where the amplifier is located? The microphone is located about in the center of the headliner. I can't figure out how to remove it to unplug it. Any ideas?

[rocky]

I've been doing a search for conversation mirror as those instructions would help-not easy doing it on a phone!.

on the Collegehillshonda site under 03-05 Pilot there are instructions for installing homelink. Follow those instructions to take the sunglass etc holder apart-

[PILOTPETE]

I understand the Active Noise Control Unit is behind the radio so quite a job to get to it, particularly if you don't have an Overhaul Manual for removal procedure.

The SB states that if you are out of warranty, which you obviously will be, the "Goodwill" factor may apply. Maybe get it done a little cheaper or get the Dealership to disable it for you. Worth a try, so best of luck. Pete.