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Power Window Serial Link Check

WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. 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 .

    MONITOR ITEM CONDITION CHART

    Monitor item Condition
    LOCK SW DR / AS LOCK :ON
    UNLOCK :OFF
    UNLK SW DR / AS LOCK :ON
    UNLOCK :OFF
    Fig 1: Display LOCK SW DR/AS A d UNLK SW DR/AS in DATA MONITOR Mode
    G03358924Courtesy 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 (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 seconds just after door lock and unlock switch (driver side and passenger side) is turned "LOCK" or "UNLOCK".
    Fig 2: Reference Value Chart
    G03358925Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 3: Checking Signal Between BCM Connector And Ground
    G03358926Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK : GO TO 2.
    2. NG : GO TO  3 .
  2. CHECK BCM OUTPUT SIGNAL 

    Check power window serial link ("POWER WINDOW DOWN") in "ACTIVE TEST" mode with CONSULT-II.

    Refer to ACTIVE TEST .

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

    OK or NG

    1. OK : Further inspection is necessary. Refer to TROUBLE DIAGNOSIS SYMPTOM CHART  .
    2. NG : Replace BCM.
    Fig 4: Displaying POWER WINDOW DOWN In ACTIVE TEST Mode
    G03358927Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK POWER WINDOW SWITCH GROUND 
    1. Turn ignition switch OFF.
    2. Disconnect power window main switch and front power window switch (passenger side) connector.
    3. Check continuity between power window main switch connector D7 terminal 17 and ground.
      1. 17 (B) - Ground : Continuity should exist. 
      Fig 5: Checking Continuity Between Power Window Main Switch Connector D7 Terminal 17 And Ground
      G03358928Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check continuity between front power window switch (passenger side) connector D35 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 Switch (Passenger Side) Connector D35 Terminal 11 And Ground
    G03358929Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK POWER WINDOW SERIAL LINK CIRCUIT 
    1. Disconnect BCM connector.
    2. Check continuity between BCM connector M37 terminal 74 and power window main switch connector D6 terminal 14.
      1. 74 (BR/W) - 14 (BR/W) : Continuity should exist. 
      Fig 7: Checking Continuity Between BCM Connector M37 Terminal 74 And Power Window Main Switch Connector D6 terminal 14
      G03358930Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between BCM connector M37 terminal 74 and front power window switch (passenger side) connector D35 terminal 16.
      1. 74 (BR/W) - 16 (BR/W) : Continuity should exist. 

    OK or NG

    1. OK : Replace power window main switch.
    2. NG : Repair or replace harness.
    Fig 8: Checking Continuity Between BCM Connector M37 Terminal 74 And Front Power Window Switch (Passenger Side) Connector D35 Terminal 16
    G03358931Courtesy of NISSAN MOTOR CO., U.S.A.