WARNING: This page is about a different car, the 2011 Infiniti FX50 and 2011 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Power Consumption Control System Diagram
Courtesy of NISSAN MOTOR CO., U.S.A.
NOTE:
Combination meter is received via unified meter and A/C amp.