DTC B2115: Seat Lifter RR: Description

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

The lifting motor (rear) is installed to the seat frame assembly.
The lifting motor (rear) is activated with the driver seat control unit.
Tilts the seat rear up/down by changing the rotation direction of lifting motor (rear).