What is this 2-pin connector under my 2005 Fabia 1.4 TDI ?

Hi,

The car is a 2005 Skoda Fabia Mk1, 1.4 TDI, 75 hp.

I found this 2-pin connector/component underneath my car while it was on a lift, but I don't know what it is.

It appears to have a 2-pin electrical connector, but currently:

• One pin has a wire connected to it.

• The second pin is completely empty/broken.

• There is also a separate loose wire, marked with the green circle in image, which is not connected to anything.

I'm wondering if this loose wire is supposed to connect to the empty second pin of the blue-marked component.

Does anyone know exactly what this component is and what the two wires/pins are for?

Thanks!