WARNING: This page is about a different car, the 2018 Nissan NV3500 HD and 2018 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of NISSAN NORTH AMERICA, INC.
NOTE:
Both "Engine coolant temperature sensor" and "Engine coolant temperature sensor 1" are used in this information. These indicate the same part.