WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Rear Washer Tube Layout
NOTE:
Connect the check valve (2) to the washer fluid tube (1) so that the directional arrow on the check valve (2) points towards the washer nozzle tube (3).
Fig 2: Connecting Check Valve To Washer Fluid Reservoir Tube