Brake Pedal Switch Wiring

[GasManLS7]

I'm looking to wire a brake light switch into my pedal box and currently have this type:

I still have the connector and wiring for the original brake light switch but it has 4 wires:

Does anyone know what each of the 4 wires is? Can I wire my new brake light switch into those?

 

[Brigsy]

All on visu see attached pdf.

160 is the brake light switch.
1016 is passenger side fuse box.
120 is injection ecu.
172 & 173 are rear lights.

Be easy enough. Id stick it in between pins A1/B1 & A3 to test, prob work ok..pins will be marked on the plug.

 

[GasManLS7]

Awesome mate thanks a lot!