FRONT POWER WINDOW SWITCH: Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH
   1. Remove Intelligent Key or ignition key, and close the 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".
      Fig 1: Checking Signal Between BCM Connector And Ground

      Courtesy of NISSAN NORTH AMERICA, INC.

      Terminal			Signal (Reference value)
      (+)		(-)
      BCM connector	Terminal
      M18	22	Ground

      Is the inspection result normal? 

      YES: Power window serial link is OK.

      NO: GO TO 2

2. CHECK POWER WINDOW SERIAL LINK CIRCUIT
   1. Turn ignition switch OFF.
   2. Disconnect BCM.
   3. Check continuity between BCM connector (A) and power window and door lock/unlock switch RH connector (B).

      BCM connector	Terminal	Power window and door lock/unlock switch RH connector	Terminal	Continuity
      M18 (A)	22	D105 (B)	16	Yes

      Fig 2: Checking Continuity Between BCM Connector (A) And Ground

      Courtesy of NISSAN NORTH AMERICA, INC.
   4. Check continuity between BCM connector (A) and ground.

      BCM connector	Terminal	Ground	Continuity
      M18 (A)	22		No

      Is the inspection result normal? 

      YES: Replace power window and door lock/unlock switch RH. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.