help brake light switch

I need to order a new brake light switch thing is the store says is it 2 or 1 wire.Well i pulled the harness out in the fall back in i just pulled the switch out one wire it is.But there is a white wire and pink wire witch one goes to the switch or do white and pink go to the switch could someone put the wrong switch in at some time.Thanksssssss Don.
Author: admin