Door Lock/Unlock Switch Check

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.

CHECK DOOR 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 ".

Fig 1: CONSULT-II Data Display CDL LOCK SW & CDL UNLOCK SW
Courtesy of NISSAN MOTOR CO., U.S.A.
- 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
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.
  
  Fig 2: Checking Signal Between BCM Connector M18 Terminal 22 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: Waveform Signal Graph & Voltage Specifications
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Make sure the signals which are shown in the figure below can be detected during 10 seconds just after the door lock/unlock switch is turned to LOCK or UNLOCK.
OK or NG
- OK: Door lock and unlock switch circuit is OK.
- NG: GO TO 2.
CHECK BCM OUTPUT SIGNAL
Check ("POWER WINDOW DOWN") in ACTIVE TEST mode for "REMOTE KEYLESS ENTRY SYSTEM" with CONSULT-II. Refer to "ACTIVE TEST ".

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

Fig 4: CONSULT-II Data Display ACTIVE TEST
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
- OK: GO TO 3.
- NG: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".
CHECK DOOR LOCK/UNLOCK SWITCH GROUND HARNESS
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch or power window and door lock/unlock switch RH.
3. Check continuity between main power window and door lock/unlock switch connector D7 terminal 15 (without automatic back door system) or D8 terminal 17 (with automatic back door system) and ground.
  
  Fig 5: Checking Continuity Between Main Power Window & Door Lock/Unlock Switch Connector D7 Terminals 15, 17 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  - 15 (B) - Ground: Continuity should exist.
  - 17 (B) - Ground: Continuity should exist.
4. Check continuity between power window and door lock/unlock switch RH connector D105 terminal 11 and ground.
  
  Fig 6: Checking Continuity Between Power Window & Door Lock/Unlock Switch RH Connector D105 Terminal 11 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  - 11 (B) - Ground: Continuity should exist.
OK or NG
- OK: GO TO 4.
- NG: Repair or replace harness.
CHECK POWER 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 12 (without automatic back door system) or terminal 14 (with automatic back door system).
  
  Fig 7: Checking Continuity Between BCM Connector M18 Terminal 22 & Main Power Window/Door Lock/Unlock Switch Connector D7 Terminal 12 or 14
  Courtesy of NISSAN MOTOR CO., U.S.A.
  - 22 (Y/B) - 12 (Y): Continuity should exist.
  - 22 (Y/B) - 14 (Y): Continuity should exist.
Check continuity between BCM connector M18 terminal 22 and power window and door lock/unlock switch RH connector D105 terminal 16.

Fig 8: Checking Continuity Between BCM Connector M18 Terminal 22 And Power Window/Door Lock/Unlock Switch RH Connector D105 Terminal 16
Courtesy of NISSAN MOTOR CO., U.S.A.
- 22 (Y/B) - 16 (Y/B): Continuity should exist.

OK or NG

OK: Replace main power window and door lock/unlock switch or power window and door lock/unlock switch RH. Refer to "REMOVAL AND INSTALLATION - WINDOW AND DOOR LOCK/UNLOCK SWITCH ".
NG: Repair or replace harness.