How to Wire a Touch Lamp | Hunker Wiring a touch module in your lamp will enable you to transform your old lamp into something new and different. There are different type modules you can buy such as 3-way or 2-way. These replacement modules have wiring diagrams with them. Please be sure to compare these general steps with your wiring diagram that was included with your touch module. Touch Switch – Circuit Wiring Diagrams This schematic diagram is about touch switch circuit. Separate ON and OFF switch improves the ergonomics for safety, since the touching off button when the state is off doesn’t make the system acts in the opposite way: turning ON the system.