5717. Mount bracket bolt. A Bolt used to attach the Engine Control Module Cover to its mounting point. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Fuse Box Cover to it's mounting point. Anti-Theft Alarm Siren Bolt. Anti - Theft Alarm Siren. Engine Control Module (ECM). Engine Control Unit (ECU). Fuse Box. Mount bracket.