Warning Chime System Inspection

WARNING: This page is about a different car, the 2005 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

WARNING CHIME OUTPUT SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. Operate the sliding door and check voltage waveform between sliding door control unit connector terminal 8 and ground using an oscilloscope.
  
  Fig 1: Voltage Waveform Graph Description Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Checking Voltage Waveform Between Sliding Door Control Unit Connector Terminal 8 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: Warning chime system is OK.
- NG: Replace sliding door control unit.