Cinch Latch Motor System Inspection

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

CINCH LATCH MOTOR SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. While fully opening and closing the sliding door, check voltage between sliding door latch control unit connector terminals 3, 9 and ground.
Fig 1: Sliding Door Latch Control Unit Connector Terminals 3, 9 And Ground Waveform
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Checking Voltage Between Sliding Door Latch Control Unit Connector Terminals 3, 9 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 2.
2. NG: Replace the sliding door latch control unit.
CINCH LATCH MOTOR CIRCUIT INSPECTION
1. Disconnect cinch latch switch and sliding door latch control unit connector.
2. Check continuity between cinch latch switch connector terminals 1, 2 and sliding door latch control unit connectors terminals 3, 9.
  1 - 3: Continuity should exist.
  
  2 - 9: Continuity should exist.
OK or NG
1. OK: GO TO 3.
2. NG: Repair the harness between the cinch latch switch and the sliding door latch control unit.
Fig 3: Checking Continuity Between Cinch Latch Switch And Sliding Door Latch Control Unit Connectors Terminals
Courtesy of NISSAN MOTOR CO., U.S.A.
CINCH LATCH MOTOR OPERATION INSPECTION
Connect battery power to terminals 1 and 1 on the cinch latch motor and check motor operation.

1 (+) - 2 (-): It operates.

1 (-) - 2 (+): It operates. (Reverse rotation)

OK or NG
1. OK: Motor is OK.
2. NG: Replace the cinch latch motor.
Fig 4: Connecting Battery Power To Terminals 1 And 1 On The Cinch Latch Motor
Courtesy of NISSAN MOTOR CO., U.S.A.