1. Check Fuel Filler Cap Design

1. Turn ignition switch OFF.
2. Check for genuine NISSAN fuel filler cap design.

OK or NG 

1. OK: GO TO 2.
2. NG: Replace with genuine NISSAN fuel filler cap.
   Fig 1: Identifying Genuine NISSAN Fuel Filler Cap

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