Half-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.

HALF-LATCH SWITCH SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. While fully opening and closing the sliding door, check voltage waveform between sliding door latch 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 Latch Control Unit Connector Terminal 8 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: Half-latch switch is OK.
- NG: GO TO 2.
HALF-LATCH SWITCH CIRCUIT INSPECTION
1. Disconnect cinch latch switch and sliding door latch control unit.
2. Check continuity between cinch latch switch connector terminal 2 and sliding door latch control unit connector terminal 8.
  - 2 (O/B) - 8 (O/B): Continuity should exist.
OK or NG
- OK: GO TO 3.
- NG: Repair or replace harness.
  
  Fig 3: Checking Continuity Between Cinch Latch Switch Connector Terminal 2 And Sliding Door Latch Control Unit Connector Terminal 8
  Courtesy of NISSAN MOTOR CO., U.S.A.
HALF-LATCH SWITCH GROUND INSPECTION
1. Close the sliding door.
2. Check continuity between cinch latch switch connector terminal 1 and ground.
  - 1 (Y) - Ground: Continuity should exist.
OK or NG
- OK: Replace the cinch latch switch.
- NG: Repair or replace harness.
  
  Fig 4: Checking Continuity Between Cinch Latch Switch Connector Terminal 1 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.