TSB & Wiring Diagrams - BBB Industries Search our free TSB & wiring diagram database. All makes and models. Complete technical service bulletins.TSB's & Wiring Diagrams · E-Catalog · Training Materials · Inventory Search TSB End-User License Agreement - BBB Industries technical service bulletin (tsb) & wiring diagram database please read and accept the end-user license agreement to access the database. end-user license agreement . this is a legal and binding agreement between you, the end-user (“you”), and motor information systems, hearst business media, inc. (“motor”).