Power Window Serial Link Check

WARNING: This page is about a different car, the 2004 Nissan Murano. 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 "

MONITOR ITEM AND CONDITION CHART

Monitor item	Condition
LOCK SW DR / AS	LOCK: ON
LOCK SW DR / AS	UNLOCK: OFF
UNLK SW DR / AS	LOCK: ON
UNLK SW DR / AS	UNLOCK: OFF

Fig 1: Displaying Data Monitor

Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Remove key from ignition switch, and the door of driver side and passenger side is closed.
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".
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 2: Reference Value Chart
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

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 executed, is the window of driver and passenger side lowered.

Fig 4: Displaying Active Test
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: Further inspection is necessary. Refer to TROUBLE DIAGNOSIS SYMPTOM CHART .
2. NG: Replace BCM.
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.
  17 (B) - Ground Continuity should exist.
  
  Fig 5: Checking Continuity Between Power Window Main Switch Connector D7 Terminal 17 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between front power window switch (passenger side) connector D35 terminal 11 and ground.
  11 (B) - Ground Continuity should exist.
  
  Fig 6: Checking Continuity Between Front Power Window Switch (Passenger Side) Connector D35 Terminal 11 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
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 M34 terminal 22 and power window main switch connector D6 terminal 14.
  22 (BR/W) - 14 (BR/W) Continuity should exist.
  
  Fig 7: Checking Continuity Between BCM Connector M34 Terminal 22 And Power Window Main Switch Connector D6 Terminal 14
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check continuity between BCM connector M34 terminal 22 and front power window switch (passenger side) connector D35 terminal 16.
  22 (BR/W) - 16 (BR/W) Continuity should exist.
  
  Fig 8: Checking Continuity Between BCM Connector M34 Terminal 22
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace power window main switch.
2. NG: Repair or replace harness.