When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
There are actually two sensors there. The black connector is for your outside ambient temperature sensor (used for climate control and shown on the center dash multi-display). All yellow wire harness plugs indicate SRS system, the one in the front under the latch is your front impact sensor. There's a steel Z bracket that mounts there with 2x10mm nuts (you can see the posts in your pic).
Hope that helps!
-Icer
I have only been a Z owner for a little over a year and im still getting to know these cars. Always good to read through these threads. Good info even if youre not the one asking for help.