2020-2022 Honda Pilot ANC Module: Fixing Buzzing, Humming, and Audio Problems
This guide explains how to diagnose and replace the Active Noise Cancellation (ANC) module in your 2020-2022 Honda Pilot, and how to tell if your audio problem is something else entirely.
- This module only fits 2020-2022 Pilot models with the Elite or Black Edition trim levels.
- A humming/booming noise points to the ANC module, but a popping/crackling noise is a different issue related to the MOST bus network (Honda TSB 21-012).
- The easiest way to confirm a bad ANC module is to unplug it (located behind the glove box) and see if the humming stops.
- A replacement module, new or used, may require programming or initialization by a technician to function correctly.
Is Your Audio Problem the ANC Module or Something Else?
Many 2020-2022 Honda Pilot owners experience audio system problems, but it's important to know there are two common but very different issues. Diagnosing the symptom correctly can save you from buying a part you don't need.
- Loud Popping or Crackling: If you hear loud, sharp popping or crackling sounds from the speakers, sometimes accompanied by the audio cutting out or a 'Network Communication Lost' message, the problem is most likely NOT your ANC module. This is a widely known issue with the MOST bus network connectors. Honda issued Technical Service Bulletin (TSB) 21-012 and a warranty extension for this problem, which involves replacing faulty FAKRA connectors in the audio system wiring. 🎬 Watch this guide on fixing Honda audio crackling and popping If you have these symptoms, contact a Honda dealer to see if your vehicle is covered under the warranty extension.
- Deep Humming, Booming, or Rumbling: If you hear a low-frequency hum, drone, or rumble that seems to come from the speakers (especially when the stereo is off), this is the classic symptom of a failing Active Noise Cancellation module or its related microphones. This noise may change with engine RPM and can be particularly noticeable when an aftermarket subwoofer is installed.
Symptoms of a Failing ANC Module
When the ANC module fails, it can no longer correctly process the microphone inputs or generate the proper 'anti-noise' signal. This can lead to several noticeable issues.
- Persistent Humming or Booming Noise: The most common symptom is a constant low-frequency hum or drone coming through the vehicle's speakers. This can occur even when the radio is off and may sound like a nearby car has a loud stereo system.
- Feedback with Aftermarket Subwoofers: The ANC system can react to the bass from an aftermarket subwoofer, creating a loud, oscillating bass tone or rumble as it tries to 'cancel' the music. Many audio installers will simply unplug the ANC module as part of a subwoofer installation.
- No Specific Check Engine Lights: A failing ANC module typically does not trigger the check engine light or store specific powertrain fault codes. However, severe faults in the audio network could potentially log communication codes (U-codes).
Pro Tip: A simple way to diagnose a faulty ANC module is to unplug it. The module is located behind the glove box on the passenger side. 🎬 Watch a video walkthrough on how to access and unplug the ANC module If you disconnect the module and the humming or booming noise disappears, you have confirmed the ANC module is the source of the problem.
Known Issues, TSBs, and Recalls
As of mid-2026, there are no specific recalls for the Active Noise Cancellation module on the 2020-2022 Honda Pilot. However, the audio system is subject to other service campaigns.
- Honda TSB 21-012: This bulletin addresses popping or crackling from the speakers caused by a loose connection in the MOST bus network. It applies to 2019-2020 Pilot models (all except LX) and involves installing updated connectors. While the TSB doesn't officially cover 2021-2022 models, the issue is known to persist and has been the subject of class-action lawsuits.
- Honda TSB 21-053 & 22-014: These bulletins were for other Honda models (Accord and Insight) but describe the 'booming or rumbling' noise caused by a faulty ANC unit or its microphones, confirming the failure pattern. 🎬 See how to diagnose the ANC humming noise issue
Programming and Installation Requirements
The question of programming is a common one for electronic modules. For the 2020-2022 Pilot ANC module, the information is mixed.
Warning: While many Honda modules are pre-programmed and do not require a dealer visit, some used part listings for this specific module state that it 'may need to be reprogrammed to the vehicle for interchange.' It is not tied to the vehicle's immobilizer system, so the car will start and run with a replacement module installed. However, for the ANC function to work correctly, an 'initialization' or programming procedure with a compatible scan tool may be required. It is best to assume this step may be necessary and confirm with a qualified technician before beginning the repair.
Buying a Used 2020-2022 Pilot ANC Module
A used OEM module is an excellent, cost-effective repair option, as aftermarket versions are not available. Here’s what to look for:
- Verify Trim Level Compatibility: This is critical. The ANC module is specific to the Elite (AWD) and Black Edition (AWD) trim levels for the 2020-2022 model years. Ensure the donor vehicle matches these trims.
- Match the Part Number: The most common OEM part number is 39200-TG7-B01. You may also see the number 39200-TG7-B012-M1. Verify the part number on your original module before purchasing a replacement.
- Inspect for Damage: When buying a used module, check the electrical connector pins for any signs of corrosion, moisture, or damage. Ensure the plastic housing is not cracked or broken.
- Choose a Reputable Seller: Buy from a seller that offers a warranty and a clear return policy. This protects you in case the module is defective or does not resolve your issue.
Replacement Cost Breakdown
Replacing the ANC module is relatively inexpensive compared to other electronic repairs. The module's location behind the glove box makes for a straightforward replacement.
| Part or Service | Estimated Cost |
|---|---|
| New OEM Module | $85 - $130 |
| New Aftermarket Module | Not Available |
| Used OEM Module | $70 - $180 |
| Shop Labor | $75 - $225 (0.5 - 1.5 hours) |
Frequently Asked Questions (FAQ)
Where is the ANC module located on a 2020-2022 Honda Pilot?
The Active Noise Cancellation module is located on the passenger side of the vehicle, behind the glove box assembly, mounted to a dash support. You will need to remove the glove box to access it.
Can I just unplug the ANC module to fix the humming noise?
Yes. Unplugging the module is a common diagnostic step and a permanent solution for many, especially those installing aftermarket audio systems. This will stop the humming noise but will also disable the noise-canceling feature, so you may notice a slight increase in low-frequency cabin noise while driving.
Does a used ANC module need to be programmed?
It might. While it is not linked to the anti-theft system, some evidence suggests the module may need to be initialized or programmed to the vehicle to function correctly. It's best to consult with a professional shop that has access to Honda-specific diagnostic tools.
Will a bad ANC module cause a popping or crackling sound?
It is unlikely. A loud, intermittent popping or crackling sound is a well-documented symptom of a problem with the MOST bus network connectors, addressed by Honda TSB 21-012. A bad ANC module typically causes a constant, low-frequency hum or drone.
Helpful Videos
Technical Specifications
OEM Part Numbers: 39200-TG7-B01 39200-TG7-B012-M1
Fits 2020-2022 Honda Pilot Elite (AWD) and Black Edition (AWD) trims. Located at the right-hand (passenger side) of the dashboard.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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- 🛍️ Shop This Part
- Is Your Audio Problem the ANC Module or Something Else?
- Symptoms of a Failing ANC Module
- Known Issues, TSBs, and Recalls
- Programming and Installation Requirements
- Buying a Used 2020-2022 Pilot ANC Module
- Replacement Cost Breakdown
- Frequently Asked Questions (FAQ)
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