An approach is provided for determining vehicle accident risk. The input line is disposed on the base substrate, The IC Chip is electrically connected to the input line. Battery blocks are set by dividing the full capacity, if an input is entered when the first image is displayed to provide a battery blocks set up. The first gear meshes with the third gear, and the second gear meshes with the fourth gear. The assembly carrier holds pre-assemblable components and to which assembly carrier is fastened a rear-end trim panel and which assembly carrier is fixedly connected to the two inner side parts by screw devices and forms a stiffening body cross member.