Car wiring diagrams: 3 Way Switch Schematic Diagram, wiring diagram, wire wiring harness, schematic circuit diagram, wiring diagran, wireing diagram, wirring diagram, wiring daigram, wiring diagrams. See Alternate Way Switch Wiring Configuration for another way way switches may be wired. Conventional Way Switch Wiring Configuration. Usually, the common wire is wrapped around the traveler wires for identification in the way light switch electrical boxes..Looking for a way switch wiring diagram? Here are a few that may be of interest .This story features diagrams that show how to wire three way switches. The wiring is more complicated than a traditional single pole switch, but we ll explain Feed a length of type NM cable or , if you re connecting to gauge .