3. Check Sliding Switch

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 power seat switch LH as follows.

Fig 1: Sliding Switch Continuity Chart

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

Fig 2: Checking Sliding Switch Continuity

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

OK or NG

OK >> Check the condition of the harness and connector.
NG >> Replace power seat switch LH.