In a method of operating a turn signal lighting system, in a flashing cycle a first group of a plurality of LED groups arranged in a row is initially activated, with each of the LED groups including at least one light emitting diode. The method also includes coating the second meltable material with a refractory material to produce a second mold, removing the first and second meltable material, and casting a component in the second mold. A first sprocket mounted to the first receiving surface and a second sprocket mounted to the second receiving surface. The present invention records the relevant events related to the execution of a computer program, as opposed to a comprehensive history of the read instructions and write instructions.