By Miles Nicholson
A point-to-point diagram contains the required information necessary to make or follow all wire connections and represents the actual physical wiring of an electrical system. It will show the devices as they’re physically connected to with wires, showing both connected and unconnected terminal designations. Often a point-to-point diagram will be a top-down view of each component with wires being shown in colour. This type of drawings is often used for servicing and within specific markets such as harness design.