For Shift:

WARNING: This page is about a different car, the 2004 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

Check continuity between terminals of the A/T device.

Fig 1: Continuity Table

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Checking Continuity

Courtesy of NISSAN MOTOR CO., U.S.A.