Car wiring diagrams: 3 Way Fan Switch Wiring Wiring Diagram, wiring diagram, wire wiring harness, schematic circuit diagram, wiring diagran, wireing diagram, wirring diagram, wiring daigram, wiring diagrams. Clear easy to read wiring diagrams for a ceiling fan with light kit including dimmer and speed controller. wiring diagram, fan light kit and way switches..Clear, easy to read way switch wiring diagrams with instructions..Feed a length of type NM cable or , if you re connecting to gauge wire between the two boxes. The cable has three insulated conductors white, black and red plus a bare ground wire . Connect the wires to the new three way switches with ground screws using one of the two wiring diagrams Fig..