Electrical plug under car. ID please

[adyadad]

Morning all.

We've just had a new transmission in my daughter's car and I've noticed a wire hanging down from the floor area in the centre. I haven't had a chance to get underneath and see where it goes yet.
It's got 2 grey wires inside a black nylon sleeve and it's been dragging on the ground. There is obviously wear on the security clip but the rest is still ok.
Can anyone ID what it is for and where it plugs in?
Apologies for the poor photos but I had to crop and compress to upload.
Everything seems to be working well at the moment.
It's in a 2015 MD diesel Ambiente wagon.
Thanks in advance.

[Peter B - CV8]

Reverse light connector ??. Maybe check & see if they're working when in R.

[adyadad]

Originally Posted by Peter B - CV8

Reverse light connector ??. Maybe check & see if they're working when in R.

Good point but I know they were working the other day. It could have become disconnected though.
This is why I'd prefer to do everything myself. That way I know it's done properly, although this was on warranty having recently bought the car.
I won't get a chance to check till tomorrow.
Thanks Peter B.

[chris.j]

Looks like an oxygen sensor plug. Check around the exhaust area.

[adyadad]

Originally Posted by chris.j

Looks like an oxygen sensor plug. Check around the exhaust area.

Chris.j you hit the nail on the head. It took me longer to put it on axle stands than it dit to fix.
I can only presume it was left off when the transmission was replaced. No codes either😀
Thanks for the insight.

[chris.j]

Great stuff, glad it was an easy fix.