What is this?

[BenO]

I was doing some rewiring and had my center console apart when I found this... probably something really basic, but I know little about cars

https://sl-i.net/FORUM/images/imported/2008/11/2998413802_de5335240e_b-2.jpg

[2.5GT]

That, I believe is the E-brake sensor thingie.

[AussieDan]

ABS G-sensor, don't mess with it!

[Huffer]

Yeah, it clearly says DO NOT DISCONNECT on it...