Starter Control Relay
WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.
Starter control relay and starter relay are used for the engine starting function.
Both relays are integrated in IPDM E/R. Starter relay is controlled by BCM, and starter control relay is controlled by IPDM E/R while communicating with BCM.
IPDM E/R transmits starter relay and starter control relay status signal to BCM via CAN communication.