IPDM E/R
WARNING: This page is about a different car, the 2011 Nissan Juke. However, it is still accessible from the selected car via links, so may be relevant.
IPDM E/R has starter relay and starter control relay inside. Starter relay and starter control relay are used for the engine starting function. Starter relay is controlled by BCM, and starter control relay is controlled by IPDM E/R while communicating with BCM.
During engine is running, IPDM E/R controls starter control relay according to the cranking request signal from ECM for Stop/Start System.