A disclosed harness assembly includes a base including a mounting surface and an opening that receives a mount end of a harness clip. The parts are clamped between a head and anvil support of the friction stir spot welding tool or the self-piercing riveting tool. The modulation frequency and the intensity of the supervisory signal are modulated in phase to the information signals by a cross phase modulation effect, thereby broadening a line width of the information signal. The server includes a module to check a consistency of the component data block and a module to store the consistency checked data block in a database.