WARNING: This page is about a different car, the 2012 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Engine Mechanical & Other System Symptoms Chart (1 Of 3)
Courtesy of NISSAN NORTH AMERICA, INC.
Fig 2: Engine Mechanical & Other System Symptoms Chart (2 Of 3)
Courtesy of NISSAN NORTH AMERICA, INC.
Fig 3: Engine Mechanical & Other System Symptoms Chart (3 Of 3)