Connecting electric motor on washer bottle

Going from foot pump to electric motor on washer bottle. Just removed wiper switch from dash, it has 6 pins on back of which 5 are wired up. I was informed that the pin shouild be marked with a 'W' for it to be a electric motor connection (can't find a 'W' on the spare pin) would this be the right awitch to connect up to run motor?