Check Door Lock and Unlock Switch

WARNING: This page is about a different car, the 2006 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK POWER WINDOW OPERATION
Does power window system operate normally?

OK or NG?
- OK: GO TO 2.
- NG: Refer to "POWER WINDOW SYSTEM ".

CHECK DOOR LOCK AND UNLOCK SWITCH INPUT SIGNAL

With CONSULT-II

Check door lock and unlock switch ("CDL LOCK SW""CDL UNLOCK SW") in DATA MONITOR mode with CONSULT-II.

When door lock and unlock switch is turned to LOCK
CDL LOCK SW :ON
When door lock and unlock switch is turned to UNLOCK
CDL UNLOCK SW :ON

Fig 1: Display CONSULT-II - Data Monitor Screen

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

Without CONSULT-II

Remove key from ignition key cylinder,
Check the signal between BCM connector M1 terminal 22 and ground with oscilloscope when door lock and unlock switch 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 is turned "LOCK" or "UNLOCK".

TERMINALS SIGNALS REFERENCE

Connector	Terminal (wire color)		Signal (Reference value)
Connector	(+)	(-)	Signal (Reference value)
M1	22 (Y)	Ground

Fig 2: Identifying Signal Between BCM Connector M1 Terminal 22 And Ground

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

OK or NG

OK: Door lock and unlock switch is OK.
NG: GO TO 3.

CHECK POWER WINDOW SERIAL LINK CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM, power window main switch and power window sub-switch connectors.
3. Check continuity between BCM connector M1 terminal 22 and power window main switch (door lock and unlock switch) connector D7 terminal 14.
  
  Fig 3: Identifying Continuity Between Connector M1 Terminal 22 And Connector D7 Terminal 14
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  22 (Y) - 14 (Y) : Continuity should exist.
4. Check continuity between BCM connector M1 terminal 22 and ground.
  22 (Y) - Ground : Continuity should not exist.
5. Check continuity between BCM connector M1 terminal 22 and power window sub-switch (door lock and unlock switch) connector D36 terminal 16.
  
  Fig 4: Identifying Continuity Between Connector M1 Terminal 22 And Connector D36 Terminal 16
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  22 (Y) - 16 (Y) : Continuity should exist.
6. Check continuity between BCM connector M1 terminal 22 and ground.
  22 (Y) - Ground : Continuity should not exist.
OK or NG
- OK: GO TO 4.
- NG: Repair or replace harness.
CHECK DOOR LOCK AND UNLOCK SWITCH GROUND CIRCUIT
1. Check continuity between power window main switch (door lock and unlock switch) connector D8 terminal 17 and ground.
  
  Fig 5: Identifying Continuity Between Power Window Main Switch Connector D8 Terminal 17 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  17 (B) - Ground : Continuity should exist.
2. Check continuity between power window sub-switch (front passenger side) (door lock and unlock switch) connector D36 terminal 11 and ground.
  
  Fig 6: Identifying Continuity Between Power Window Sub-Switch Connector D36 Terminal 11 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  11 (B) - Ground : Continuity should exist.
OK or NG
- OK: Replace power window main switch or power window sub-switch.
- NG: Repair or replace ground harness.