1. Check PNP Switch Ground Circuit For Open And Short

1. Turn ignition switch OFF.
2. Disconnect PNP switch harness connector.
3. Check harness continuity between PNP switch terminal 2 and body ground.

   Refer to WIRING DIAGRAM.

   1. Continuity should exist. 
4. Also check harness for short to power.

OK or NG 

1. OK: GO TO 3 
2. NG: GO TO 2.

Fig 1: Disconnect PNP switch harness connector

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