A wiring module includes: an insulating protector that has connection member holding portions for holding connection members that electrically connect adjacent electrode terminals; and a temperature detection member that detects the temperature of one of the connection members. The temperature detection member has a temperature detection element, electrical wires that are connected to the temperature detection element, an element accommodating portion that accommodates the temperature detection element and from which the electrical wires extend, and a detection portion that is continuous with the element accommodating portion and is arranged to be in contact with the connection member. The insulating protector has a locking portion that locks the element accommodating portion on the outer side of the connection member holding portions.