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Hello all. I recently spent several weeks taking my car apart on the interior wiring new speakers, two amplifiers, and a line output converter. I subsequently needed to disable my active noise cancellation module as anytime you have an amplified system, particularly subwoofers, the active noise cancellation system detects the subwoofer notes and thinks it's road noise and then puts out an opposing sound wave in an attempt to cancel it out and it sounds atrocious. I also am not at all a fan of the pedestrian warning sound that the car gives off at low speeds in EV mode. Recent legislation in the US has made it law that EV's come equipped with audible pedestrian warning systems, but I think it's pretty silly for the most part. I'm a grown up who is more than capable of avoiding pedestrians and honestly don't appreciate this noisy module being forced on me. So after doing some research, here is how to disable both of these modules.
First, you're going to need to remove your glove box. This is simple. Open your glove box reach towards the back sides of it and pull them in and it will lower further than usual at which point you can pull on it and it will become unclipped from its plastic hinges. Along the top of the glove box interior, you'll see four black screws that you'll need to remove along with a fifth screw at the bottom left of the glove box area. At this point you will need your passenger door open to remove the plastic panel on the side of the dash that is typically not visible when your door is shut. This simply clips on and can be pulled off with no tools. Now that that part is out of the way, you can pull the plastic glove box frame down from the top portion of it. This piece will require a little more effort than the side panel but again just clips back into place. There is no need to completely remove it, just open it enough to where you can see inside the dash over it. Just a little left of the middle of the glove box area you will find your active noise cancellation module. It can be disabled by simply unplugging it. You may also disable it if you have taken apart your head unit by disconnecting/ cutting the green wire in the middle of the 24 pin connector that plugs into the back of the radio, which is also the connector you will use if you are doing custom audio work. The green wire simply sends an on/off signal to that module.
Now to disable the audible pedestrian warning system. You'll find this in between the head unit and the glove box but can be accessed easiest from the glove box area. Simply unplugging this module will cause a fault code, and your car will relentlessly indicate that there is a malfunction and to see your dealer. It will drive just fine you'll just have that annoying warning on your dash. To avoid this, cut the red and blue wire that are next to each other in the center of wire connector. This may take a little bit of work as there's not much leeway for the wiring making it semi-difficult to cut, but still only took a few minutes. I used liquid electrical tape to cover the ends of the cut wires. Plug it back in and your good! The red and blue wires go to the exterior speaker that's located under the headlight, so if I cutting those, the car still thinks it's sending a signal to the speakers but it never reaches the speaker of course, so you don't get the sound or a malfunction notice. My car now stays perfectly silent at low speeds, with no warning lights on.
The link below highlights where exactly these two modules are located.
https://photos.app.goo.gl/HK844UQecAmSGEL59
First, you're going to need to remove your glove box. This is simple. Open your glove box reach towards the back sides of it and pull them in and it will lower further than usual at which point you can pull on it and it will become unclipped from its plastic hinges. Along the top of the glove box interior, you'll see four black screws that you'll need to remove along with a fifth screw at the bottom left of the glove box area. At this point you will need your passenger door open to remove the plastic panel on the side of the dash that is typically not visible when your door is shut. This simply clips on and can be pulled off with no tools. Now that that part is out of the way, you can pull the plastic glove box frame down from the top portion of it. This piece will require a little more effort than the side panel but again just clips back into place. There is no need to completely remove it, just open it enough to where you can see inside the dash over it. Just a little left of the middle of the glove box area you will find your active noise cancellation module. It can be disabled by simply unplugging it. You may also disable it if you have taken apart your head unit by disconnecting/ cutting the green wire in the middle of the 24 pin connector that plugs into the back of the radio, which is also the connector you will use if you are doing custom audio work. The green wire simply sends an on/off signal to that module.
Now to disable the audible pedestrian warning system. You'll find this in between the head unit and the glove box but can be accessed easiest from the glove box area. Simply unplugging this module will cause a fault code, and your car will relentlessly indicate that there is a malfunction and to see your dealer. It will drive just fine you'll just have that annoying warning on your dash. To avoid this, cut the red and blue wire that are next to each other in the center of wire connector. This may take a little bit of work as there's not much leeway for the wiring making it semi-difficult to cut, but still only took a few minutes. I used liquid electrical tape to cover the ends of the cut wires. Plug it back in and your good! The red and blue wires go to the exterior speaker that's located under the headlight, so if I cutting those, the car still thinks it's sending a signal to the speakers but it never reaches the speaker of course, so you don't get the sound or a malfunction notice. My car now stays perfectly silent at low speeds, with no warning lights on.
The link below highlights where exactly these two modules are located.
https://photos.app.goo.gl/HK844UQecAmSGEL59
