A conductive module comprising: interterminal connection component groups (15, 16) attached to a battery module and each provided with a plurality of interterminal connection components, the battery module being an array of a plurality of battery cells each including a positive electrode terminal and a negative electrode terminal, the battery module including two lines of electrode terminal groups in each of which the electrode terminals are arranged in series, the interterminal connection components being provided for each of the electrode terminal groups (BC5, BC6) and electrically connecting the electrode terminals; and a flexible wiring component provided for each of the two interterminal connection component groups (15, 16), and including a plurality of voltage detection lines arranged in parallel and measuring an interterminal potential between the electrode terminals, wherein the flexible wiring component includes a transforming portion, which is a bending transforming portion, enabling transformation into a temporary mounted form and a formal mounted form by bending transformation, the temporary mounted form is used when each of the interterminal connection components serving as a connection target is physically and electrically connected with the electrode terminals, and the formal mounted form is used after work of the connecting, each of the voltage detection lines includes a main conductive portion and a subsidiary conductive portion, the main conductive portion includes an extending portion extending in an array direction of the battery cells and electrically connected at one end with an electrical connection target and a crossing portion (31 b) extending from the other end of the extending portion in a crossing direction crossing the array direction, the subsidiary conductive portion extends from one end of the crossing portion in an extending direction of the crossing portion and electrically connected at one end with the interterminal connection component serving as the connection target, the main conductive portions and an insulating portion covering the main conductive portions in the flexible wiring component are formed in a size capable of covering at least part of a corresponding one of the interterminal connection component groups (15, 16) serving as the connection target together with the electrode terminals in the formal mounted form, and the transforming portion is provided in part of the crossing portion on the subsidiary conductive portion side and/or in the subsidiary conductive portion, and displacing a portion between a main conductive portion side and the subsidiary conductive portion side between the temporary mounted form and the formal mounted form by the transformation. interterminal connection component groups (15, 16) attached to a battery module and each provided with a plurality of interterminal connection components, the battery module being an array of a plurality of battery cells each including a positive electrode terminal and a negative electrode terminal, the battery module including two lines of electrode terminal groups in each of which the electrode terminals are arranged in series, the interterminal connection components being provided for each of the electrode terminal groups (BC5, BC6) and electrically connecting the electrode terminals; and a flexible wiring component provided for each of the two interterminal connection component groups (15, 16), and including a plurality of voltage detection lines arranged in parallel and measuring an interterminal potential between the electrode terminals, wherein the flexible wiring component includes a transforming portion, which is a bending transforming portion, enabling transformation into a temporary mounted form and a formal mounted form by bending transformation, the temporary mounted form is used when each of the interterminal connection components serving as a connection target is physically and electrically connected with the electrode terminals, and the formal mounted form is used after work of the connecting, each of the voltage detection lines includes a main conductive portion and a subsidiary conductive portion, the main conductive portion includes an extending portion extending in an array direction of the battery cells and electrically connected at one end with an electrical connection target and a crossing portion (31 b) extending from the other end of the extending portion in a crossing direction crossing the array direction, the subsidiary conductive portion extends from one end of the crossing portion in an extending direction of the crossing portion and electrically connected at one end with the interterminal connection component serving as the connection target, the main conductive portions and an insulating portion covering the main conductive portions in the flexible wiring component are formed in a size capable of covering at least part of a corresponding one of the interterminal connection component groups (15, 16) serving as the connection target together with the electrode terminals in the formal mounted form, and the transforming portion is provided in part of the crossing portion on the subsidiary conductive portion side and/or in the subsidiary conductive portion, and displacing a portion between a main conductive portion side and the subsidiary conductive portion side between the temporary mounted form and the formal mounted form by the transformation.