Sensor on Master Cylinder

[32valvesftw]

There is a sensor with two wires going to it on my master cylinder, the wires are disconnected and it looks I may have broken the connection somehow. I drove the car the brakes feel fine and no warning lights are on, what does that sensor do? Low brake fluid warning perhaps?

[BigJohn]

Are your brake lights working?

[32valvesftw]

Dunno I'll check

[32valvesftw]

Its the differential pressure warning switch. The connection pulled out and the wire ends are stuck in the switch, so I need to replace the connector.