WIRING MODULE

Adjacent coupling units (21A to 21E) of a plurality of coupling units (21A to 21E) are slidably coupled via connecting members (14) in a connection direction of the connecting members. Of the plurality of coupling units (21A to 21E), one coupling unit (21E) of adjacent coupling units that are not coupled to each other via the corresponding connecting member (14) includes an extension portion (37) that is extended toward another connecting member (15A) that is different from the connecting member (15B) that couples the one coupling unit (21E). The extension portion (37) holds the other connecting member (15A).