Power Window Serial Link Check

1. Remove Intelligent Key, and close front door LH and RH.
2. Check signal between BCM connector and ground with oscilloscope when door lock and unlock switch (LH and RH) is turned to "LOCK" or "UNLOCK".
3. Check that signals which are shown in the figure below can be detected during 10 second just after door lock and unlock switch (LH and RH) is turned to "LOCK" or "UNLOCK".

   Terminal			Signal (Reference value)
   (+)		(-)
   BCM connector	Terminal
   M19	54	Ground	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

Power window serial link is OK.

NO

GO TO 2 .

1. Turn ignition switch OFF.
2. Disconnect BCM and main power window and door lock/unlock switch.
3. Check continuity between BCM connector M19 and main power window and door lock/unlock switch connector D25.

   BCM connector	Terminal	Main power window and door lock/unlock switch connector	Terminal	Continuity
   M19	54	D25	11	Yes

4. Check continuity between BCM connector M19 and ground.

   BCM connector	Terminal	Ground	Continuity
   M19	54		No

Is the inspection result normal?

YES

Replace main power window and door lock/unlock switch. Refer to Removal and Installation . After that, refer to Work Procedure .

NO

Repair or replace harness or connectors.