Door Lock/Unlock Switch Check

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.

CHECKDOO R LOCK/UNLOCK SWITCH INPUT SIGNAL
With CONSULT-II

Check door lock/unlock switch ("CDL LOCK SW", "CDL UNLOCK SW") in DATA MONITOR mode in CONSULT-II. Refer to , "DATA MONITOR "
- When door lock/unlock switch is turned to LOCK:
  CDL LOCK SW: ON
- When door lock/unlock switch is turned to UNLOCK:
  CDL UNLOCK SW: ON
Fig 1: Data Monitor Display
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II
1. Remove key from ignition key cylinder.
2. Check the signal between BCM connector M18 terminal 22 and ground with oscilloscope when door lock/unlock switch is turned to LOCK or UNLOCK.
3. Make sure the signals which are shown in the figure can be detected during 10 seconds just after the door lock/unlock switch is turned to LOCK or UNLOCK.
Fig 2: Connector Terminals Voltage Table
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking The Signal Between BCM Connector M18 Terminal 22 & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: Door lock and unlock switch circuit is OK.
2. NG: GO TO 2
CHECK BCM OUTPUT SIGNAL
Check ("POWER WINDOW DOWN") in ACTIVE TEST mode for "REMOVE KEYLESS ENTRY SYSTEM" with CONSULT-II. Refer to ACTIVE TEST . .

When "ACTIVE TEST" is performed, are the front windows lowered?

Fig 4: Active Test Display
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 3
2. NG: Replace BCM.
CHECKDOO R LOCK/UNLOCK SWITCH GROUND HARNESS
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch or front power window switch RH
3. Check continuity between main power window and door lock/unlock switch connector D7 terminal 15 (without back door auto closure system) or D8 terminal 17 (with automatic back door system) and ground.
  15 (B) - Ground: Continuity should exist.
  
  17 (B) - Ground: Continuity should exist.
  
  Fig 5: Checking Continuity Between Main Power Window & Door Lock/Unlock Switch Connector
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between front power window switch RH connector D105 terminal 11 and ground
  11 (B) - Ground: Continuity should exist.
OK or NG
1. OK: GO TO 4
2. NG: Repair or replace harness.
Fig 6: Checking Continuity Between Front Power Window Switch RH Connector D105 Terminal 11 & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECKPOW ER WINDOW SERIAL LINK CIRCUIT
1. Disconnect BCM.
2. Check continuity between BCM connector M18 terminal 22 and main power window and door lock/unlock switch connector D7 terminal 14.
  22 (Y/B) - 14 (Y/B): Continuity should exist.
  
  Fig 7: Checking Continuity Between BCM Connector M18 Terminal 22 & Main Power Window & Door Lock/Unlock Switch Connector
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check continuity between BCM connector M18 terminal 22 and front power window switch RH connector D105 terminal 16.
  22 (Y/B) - 16 (Y/B): Continuity should exist.
Fig 8: Checking Continuity Between BCM Connector M18 Terminal 22 & Front Power Window Switch RH Connector
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: Replace main power window and door lock/unlock switch or front power window switch RH
2. NG: Repair or replace harness.