WIRING MODULE

A battery wiring module (20) that is attachable to an electric cell set (10) configured with a plurality of electric cells (11) that are lined up in a line-up direction, and that have metal terminals (13), namely a positive electrode (12A) and a negative electrode (12B). The battery wiring module (20) includes: a bus bar (21) for electrically connecting the metal terminals (13) of adjacent electric cells (11) out of the plurality of electric cells (11) to each other; a resin protector (30) that is made of insulating resin, that has a bus bar holding section (32) for holding the bus bar (21), and that is attachable to the electric cell set (10); and an electronic control unit (60) for detecting a state of at least one electric cell (11) out of the plurality of electric cells (11). The resin protector (30) is configured to accommodate a tolerance in the line-up direction of the plurality of electric cells (11), and the electronic control unit (60) is attached to the insulating protector (30) so as to be movable in the line-up direction relative to the insulating protector (30).