Full-Latch Switch 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.

FULL-LATCH SWITCH SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. While fully closing and opening the sliding door, check voltage waveform between sliding door latch control unit connector terminal 7 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 Latch Control Unit Connector Terminal 7 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: Full-latch switch is OK.
- NG: GO TO 2.
FULL-LATCH SWITCH CIRCUIT INSPECTION
1. Disconnect cinch latch switch and sliding door latch control unit.
2. Check continuity between cinch latch switch connector terminal 3 and sliding door latch control unit connector terminal 7.
  
  Fig 3: Checking Continuity Between Cinch Latch Switch Connector Terminal 3 & Sliding Door Latch Control Unit Connector Terminal 7
  Courtesy of NISSAN MOTOR CO., U.S.A.
  - 3 (LG) - 7 (LG): Continuity should exist.
OK or NG
- OK: GO TO 3.
- NG: Repair or replace harness.
FULL-LATCH SWITCH GROUND INSPECTION
1. Close the sliding door.
2. Check continuity between cinch latch switch connector terminal 1 and ground.
  
  Fig 4: Checking Continuity Between Cinch Latch Switch Connector Terminal 1 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  - 1 (Y) - Ground: Continuity should exist.
OK or NG
- OK: Replace the cinch latch switch.
- NG: Repair or replace harness.