Door Switch Check

CHECK DOOR SWITCH INPUT SIGNAL

With CONSULT

Check ("DOOR SW-DR" and "DOOR SW-AS") in BCM "DATA MONITOR" mode with CONSULT.

Monitor item	Condition
DOOR SW-DR	DOOR OPEN: ON
DOOR SW-DR	DOOR CLOSED: OFF
DOOR SW-AS	DOOR OPEN: ON
DOOR SW-AS	DOOR CLOSED: OFF

Without CONSULT

Check voltage between BCM connector M18, M19 terminals 12, 47 and ground.

Item	Terminal		Condition	Voltage (Approx.)
Item	(+)	(-)	Condition	Voltage (Approx.)
Front door switch RH	12	Ground	DOOR OPEN (Switch closed)	0
Front door switch RH	12		DOOR CLOSED (Switch open)	Battery voltage
Front door switch LH	47		DOOR OPEN (Switch closed)	0
Front door switch LH	47		DOOR CLOSED (Switch open)	Battery voltage

Fig 1: Checking Door Switch Input Signal

G04902885

Courtesy of NISSAN NORTH AMERICA, INC.

OK or NG

OK: Door switch circuit is OK.

NG: GO TO 2.

CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch and BCM.
3. Check continuity between BCM connector M18, M19 terminals 12, 47 and door switch connectors B8, B108 terminal 2.
  Front door LH
  
  47 - 2: Continuity should exist .
  
  Front door RH
  
  12 - 2: Continuity should exist .
4. Check continuity between BCM connector M18, M19 terminals 12, 47 and ground.
  12 - Ground: Continuity should not exist .
  
  47 - Ground: Continuity should not exist .
  
  Fig 2: Checking Door Switch Circuit
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  OK or NG
  
  OK: GO TO 3.
  
  NG: Repair or replace harness.

CHECK DOOR SWITCH

Check continuity between door switches terminal 2 and ground part of door switch.

Terminal		Door switch	Continuity
2	Ground part of door switch	Pushed	No
2	Ground part of door switch	Released	Yes

Fig 3: Checking Door Switch

G04902776

Courtesy of NISSAN NORTH AMERICA, INC.

OK or NG

OK: GO TO 4.

NG: Replace malfunctioning door switch.

CHECK BCM OUTPUT SIGNAL
1. Connect BCM.
2. Check voltage between BCM connector M18, M19 terminals 12, 47 and ground.
  12 - Ground: Battery voltage
  
  47 - Ground: Battery voltage
  
  Fig 4: Checking BCM Output Signal
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  OK or NG
  
  OK: Further inspection is necessary. Refer to , "TROUBLE DIAGNOSIS CHART BY SYMPTOM ".
  
  NG: Replace BCM. Refer to , "REMOVAL AND INSTALLATION OF BCM ".