Rear Air Control
WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
When the rear blower switch (front) (integral to the front air control) is in the REAR position the rear blower motor speeds and the rear temperature/mode are controlled by the rear blower switch (rear) and the rear temperature switch (rear) (both integral to the rear air control).