Power Window Serial Link Check

WARNING: This page is about a different car, the 2005 Nissan 350Z. 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 with CONSULT-II. Refer to "DATA MONITOR "

Fig 1: Data Monitor Specifications Table
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Scan Tool Display "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 signal between BCM connector and ground with oscilloscope when door lock and unlock switch (driver side and passenger side) 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 (driver side and passenger side) is turned "LOCK" or "UNLOCK".
  
  Fig 3: BCM Connector & Ground Signal Specifications Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: BCM Connector & Ground Signal Test
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 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 perform, is the window of driver side and passenger side lowered?

OK or NG
- OK: Further inspection is necessary. Refer to symptom chart.
- NG: Replace BCM.
Fig 5: Scan Tool Display "Active Test"
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK POWER WINDOW SWITCH GROUND
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.
  - 15 (B) - Ground: Continuity should exist.
  Fig 6: Power Window Main Switch Connector D7 Terminals 15 & Ground Continuity Test
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between power window sub-switch connector D37 terminal 11 and ground.
  - 11 (B) - Ground: Continuity should exist.
OK or NG
- OK: GO TO 4.
- NG: Repair or replace harness.
Fig 7: Check Continuity Between Power Window Sub-Switch Connector D37 Terminal 11 & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK POWER WINDOW SERIAL LINK CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM connector M90 terminal 22 and power window main switch connector D7 terminal 12.
  - 22 (Y) - 12 (PU): Continuity should exist.
  Fig 8: BCM Connector M90 Terminal 22 & Power Window Main Switch Connector D7 Terminal 12 Continuity Test
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check continuity between BCM connector M90 terminal 22 and power window sub-switch connector D37 terminal 16.
  - 22 (Y) - 16 (SB): Continuity should exist.
OK or NG
- OK: Replace power window main switch.
- NG: Repair or replace harness.
Fig 9: BCM Connector M90 Terminal 22 & Power Window Sub-Switch Connector D37 Terminal 16 Continuity Test
Courtesy of NISSAN MOTOR CO., U.S.A.