Diagnosis Procedure

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

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

CHECK FRONT DOOR SWITCH

Check voltage between BCM connector and ground.

Terminals			Door condition		Voltage (V) (Approx.)
(+)		(-)
BCM connector	Terminal	(-)
M18	12	Ground	Front door RH	OPEN	0
M18	12		Front door RH	CLOSE	Battery voltage
M19	47		Front door LH	OPEN	0
M19	47		Front door LH	CLOSE	Battery voltage

Fig 1: Checking Voltage Between BCM Connector And Ground

Courtesy of NISSAN NORTH AMERICA, INC.

Is the measurement value within the specification?

YES: Door switch circuit is OK.

NO: GO TO 2

CHECK HARNESS CONTINUITY

Turn ignition switch OFF.
Disconnect BCM and front door switch.

Check continuity between BCM connector and front door switch connector.

BCM connector	Terminal	Front door switch connector	Terminal	Continuity
M18	12	RH: B108	2	Yes
M19	47	LH: B8	2	Yes

Fig 2: Checking Continuity Between Front Door Switch Connector And Ground

Courtesy of NISSAN NORTH AMERICA, INC.

Check continuity between front door switch connector and ground.

Front door switch connector	Terminal	Ground	Continuity
B8 (LH)	2		No
B108 (RH)

Is the inspection result normal?

YES: GO TO 3

NO: Repair or replace harness.

CHECK FRONT DOOR SWITCH
Check front door switch.

Refer to "COMPONENT INSPECTION ".

Is the inspection result normal?

YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

NO: Replace front door switch.