Wiring module

A wiring module for use in an automobile, the wiring module being attached to a battery module including a single cell group in which a plurality of single cells having a plurality of electrode terminals are lined up, the plurality of electrode terminals including a plurality of positive electrode terminals and a plurality of negative electrode terminals, the wiring module comprising:

• a voltage detection wire formed by coating a core wire made of aluminum or an aluminum alloy and being coated with an insulation coating;
• a connection member made of aluminum or an aluminum alloy, the connection member electrically connecting adjacent electrode terminals of the plurality of electrode terminals to each other, the connection member including:
• a wire connection portion having a crimping portion being crimped onto a coated portion of the voltage detection wire that is coated with the insulation coating,
• a terminal connection portion connected to the plurality of electrode terminals;
• and
• an upwardly extending portion connecting the terminal connection portion to the wire connection portion, the terminal connection portion and the wire connection portion being vertically offset to each other, and the upwardly extending portion being perpendicular to the terminal connection portion and the wire connection portion, wherein:
• the voltage detection wire includes an exposed core wire that is exposed at an end portion of the voltage detection wire, and the exposed core wire is connected between the crimping portion and the terminal connection portion of the connection member by welding.