POWER WINDOW SUB-SWITCH : Diagnosis Procedure

CHECK POWER WINDOW SWITCH OUTPUT SIGNAL

Door of driver side and passenger side is closed.
Check signal between BCM harness connector and ground with oscilloscope when door lock and unlock switch (driver side and passenger side) is turned to "LOCK" or "UNLOCK".
Check that 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 to "LOCK" or "UNLOCK".

SIGNAL REFERENCE CHART

Terminal			Signal (Reference value)
(+)		(-)
BCM connector	Terminal	(-)
M123	132	Ground	Courtesy of NISSAN MOTOR CO., U.S.A.

Is the inspection result normal?

YES: GO TO 2.

NO: GO TO 3.

CHECK BCM OUTPUT SIGNAL

Check power window serial link ("PW REMOTO DOWN SET") in "ACTIVE TEST" mode with CONSULT-III.

TEST ITEM DESCRIPTION CHART

Test item		Description
POWER WINDOW DOWN	ON	Driver side window and passenger side window	OPEN

Is the inspection result normal?

YES: GO TO 4.

NO: Replace BCM. Refer to "EXPLODED VIEW ".

CHECK POWER WINDOW SERIAL LINK CIRCUIT

Check continuity between BCM connector and power window sub-switch connector.

TERMINAL CONTINUITY REFERENCE CHART

BCM connector	Terminal	Power window sub-switch connector	Terminal	Continuity
M123	132	D38	16	Existed

TERMINAL CONTINUITY REFERENCE CHART

BCM connector	Terminal	Ground	Continuity
M123	132	Ground	Not existed

Is the inspection result normal?

YES: Replace power window sub-switch. Refer to "REMOVAL AND INSTALLATION ".

NO: Repair or replace harness.