Full-Latch Switch System Inspection

WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

FULL-LATCH SWITCH SIGNAL INSPECTION

Turn ignition switch OFF.

While fully closing and opening the sliding door, check voltage waveform between sliding door latch control unit connector D204 (LH) or D304 (RH) terminal 7 and ground using an oscilloscope.

TERMINALS VOLTAGE REFERENCE

7 - Ground

Fig 1: Identifying Voltage Waveform Between Sliding Door Latch Control Unit Connector D204 (LH) Terminal 7 And 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 D202 (LH) or D302 (RH) terminal 3 and sliding door latch control unit connector D204 (LH) or D304 (RH) terminal 7.
  3 - 7: Continuity should exist.
OK or NG

OK: GO TO 3.

NG: Repair or replace harness.

Fig 2: Identifying Continuity Between Cinch Latch Switch Connector Terminal And Sliding Door Latch Control Unit Connector Terminal
Courtesy of NISSAN MOTOR CO., U.S.A.
FULL-LATCH SWITCH GROUND INSPECTION
1. Close the sliding door.
2. Check continuity between cinch latch switch connector D202 (LH) or D302 (RH) terminal 1 and ground.
  1 - Ground: Continuity should exist.
OK or NG

OK: Replace the cinch latch switch.

NG: Repair or replace harness.

Fig 3: Identifying Continuity Between Cinch Latch Switch Connector D202 (LH) Or D302 (RH) Terminal 1 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.