Power Window Serial Link Check Front LH and RH /Without Rear Power Vent Windows

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.

CHECK SERIAL LINK OUTPUT SIGNAL
With CONSULT-II

Check door lock and unlock switch ("LOCK SW DR/AS", "UNLK SW DR/AS") in DATA MONITOR mode for "REMOTE KEYLESS ENTRY SYSTEM" with CONSULT-II. Refer to "DATA MONITOR ".
- When door lock and unlock switch is turned to LOCK
  1. LOCK SW DR/AS: ON
- When door lock and unlock switch is turned to UNLOCK
1. UNLK SW DR/AS: ON
Fig 1: Display CONSULT II (Data Monitor)
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II
1. Remove key from ignition switch, and the door of driver side and passenger side is closed.
2. Check the signal between BCM connector and ground with oscilloscope when door lock and unlock switch (front LH and front RH) is turned "LOCK" or "UNLOCK".
3. Make sure signals which are shown in the figure below can be detected during 10 second just after door lock and unlock switch (front LH and front RH) is turned "LOCK" or "UNLOCK".
Fig 2: Identifying BCM Connectors Signal Waveform Graph
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking Signal Between BCM Connector And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 2.
2. NG: GO TO 3 .
CHECK BCM OUTPUT SIGNAL
Check power window serial link ("POWER WINDOW DOWN") in "ACTIVE TEST" mode with CONSULT-II. Refer to "ACTIVE TEST ".

When "ACTIVE TEST" is executed, is the window of driver side and passenger side lowered.

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

OK or NG
1. OK: Further inspection is necessary. Refer to symptom chart.
2. NG: Replace BCM.
CHECK POWER WINDOW SWITCH GROUND
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch and front power window and door lock/unlock switch RH.
3. Check continuity between main power window and door lock/unlock switch connector D7 terminal 15 and ground.
  1. 15 (B) - Ground: Continuity should exist.
  Fig 5: Checking Continuity Between Main Power Window And Door Lock/Unlock Switch Connector D7 Terminal 15 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between front power window and door lock/unlock switch RH connector D105 terminal 11 and ground.
  1. 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 And Door Lock/Unlock Switch Rh Connector D105 Terminal 11 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
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.
  1. 22 (Y/B) - 12 (Y/B): Continuity should exist.
  Fig 7: Checking Continuity Between BCM Connector M18 Terminal 22 And Main Power Window And Door Lock/Unlock Switch Connector D7 Terminal 12
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check continuity between BCM connector M18 terminal 22 and front power window and door lock/unlock switch RH connector D105 terminal 16.
  1. 22 (Y/B) - 16 (Y/B): Continuity should exist.
  Fig 8: Checking Continuity Between BCM Connector M18 Terminal 22 And Front Power Window And Door Lock/Unlock Switch RH Connector D105 Terminal 16
  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 and door lock/ unlock switch RH.
  2. NG: Repair or replace harness.