To provide a technique by which an accumulated tolerance caused by the arrangement of terminal fittings is eliminated to improve the workability in a multipole cell-voltage detection connector. When all of receptacle terminals (94) are inserted into receptacle insertion groove parts (22), each of the receptacle terminals (94) is buckled at a bending hole (97) and a mark-off part (98) formed as a boundary of a receptacle root part (95) and a receptacle front part (96). Because the receptacle insertion groove parts (22) are formed in a state where there is substantially no tolerance, the terminal pitch tolerance correction housing (10) is fitted to receptacle units (90), and the receptacle terminals (94) (receptacle front parts (96)) protruded from the receptacle insertion groove parts (22) toward a bottom inner surface (15) are corrected to a state where there is no tolerance.