Power Window Serial Link Check

WARNING: This page is about a different car, the 2004 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK POWER WINDOW SWITCH OUTPUT SIGNAL
With CONSULT-II

Check door lock and unlock switch ("LOCK SW DR/AS", "UNLK SW DR/AS") in DATA MONITOR mode for "POWER DOOR LOCK SYSTEM" with CONSULT-II. Refer to WORK SUPPORT .

Fig 1: Data Monitor Display
Courtesy of NISSAN MOTOR CO., U.S.A.
- When door lock and unlock switch is turned to LOCK
  LOCK SW DR/AS: ON
- When door lock and unlock switch is turned to UNLOCK
  UNLK SW DR/AS: ON
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 (driver side and passenger side) is turned "LOCK" or "UNLOCK".
  
  Fig 2: Oscilloscope Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Make sure signals which are shown in the Fig 3 can be detected during 10 second just after door lock and unlock switch (driver side and passenger side) is turned "LOCK" or "UNLOCK".
  
  Fig 3: Checking Signal Between BCM Connector Terminal 22 & 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 for "REMOTE KEYLESS ENTRY SYSTEM" with CONSULT-II. Refer to ACTIVE TEST .

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

Fig 4: Active Test Display
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 CHECK
1. Turn ignition switch OFF.
2. Disconnect power window main switch and power window sub-switch connector.
3. Check continuity between power window main switch connector D7 terminals 15 and ground.
  
  Fig 5: Checking Continuity Between Terminals 15 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  15 (B) - Ground: Continuity should exist .
4. Check continuity between power window sub-switch connector D43 terminal 11 and ground.
  
  Fig 6: Checking Continuity Between Terminal 11 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  11 (B) - Ground: Continuity should exist .
OK or NG
1. OK: GO TO 4 .
2. NG: Repair or replace harness.
CHECK POWER WINDOW SERIAL LINK CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM connector M1 terminal 22 and power window main switch connector D7 terminal 12.
  
  Fig 7: Checking Continuity Between BCM Terminal 22 & Terminal 12
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  22 (Y) - 12 (BR): Continuity should exist .
3. Check continuity between BCM connector M1 terminal 22 and power window sub-switch connector D43 terminal 16.
  
  Fig 8: Checking Continuity Between Terminal 22 & Terminal 16
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  22 (Y) - 16 (Y): Continuity should exist .
OK or NG
1. OK: Replace power window main switch.
2. NG: Repair or replace harness.