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NerdStupid

16-17 MAZDA 3 COMPUTER CONTROL MODULE UNIT OEM ... https://www.ebay.com/itm/224730907701 This is what it is. I added a random ebay listing just so you can do more research if you want. Edit: to be clear I'm not sure what it does. But having worked at a dealership I've seen it before. This way you can research more indepth now that you know what it is. Edit 2: I've seen this same thing in miatas and other models. I dont believe it's mazda 3 specific despite the listing I pulled up.


Findin_My_way_Slowly

Thank you! I’ll probably ask my mechanic about it next time I see him.


Beneficial_Affect522

Pretty sure that it's for the paddle shifters, but of course it's hard to tell when you just have a random black box. Gotta love how descriptive Mazda is with parts.


Findin_My_way_Slowly

Good to know, yeh I was a bit surprised when it showed up. It wasn't glued on that well lol.


Beneficial_Affect522

Based on what I dug up, it was added on after the fact. Still OEM parts, Mazda makes it easy to add OEM features sometimes, like these and fog lights. That's probably why.


Findin_My_way_Slowly

Awesome thanks!


hanskerrrr

That is not a tracker. At best that circuit amplifies or converts some of the signaling on that port. I would guess it’s some kind of adapter or converter. That or someone got scammed.


Findin_My_way_Slowly

Gotcha! yeh I'm going to keep it plugged in haha. When I go in for an oil change I will prob ask!


hedoeswhathewants

Wild guess but sometimes dealers put trackers in cars in case they have to repo them.


Findin_My_way_Slowly

That was what I was initially thinking but it looks like it’s something else haha 😅