Door Switch Check

WARNING: This page is about a different car, the 2005 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DOOR SWITCH INPUT SIGNAL

With CONSULT-II

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

DOOR SWITCH INPUT SIGNAL CHART

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

Fig 1: CONSULT-II Diagnosis Function Display

Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

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

BCM CONNECTORS M18, M19 TERMINALS 12, 47 VOLTAGE CHART

Item	BCM		Condition	Voltage (V) (Approx.)
	Terminal
	(+)	(-)
RH door switch	12	Ground	OPEN	0
RH door switch	12		CLOSED	Battery voltage
LH door switch	47		OPEN	0
LH door switch	47		CLOSED	Battery voltage

OK or NG

OK : Door switches are OK.
NG : GO TO 2.

Fig 2: Checking Voltage Between BCM Connectors M18, M19 Terminals 12, 47 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch and BCM connectors.
3. Check continuity between BCM connectors 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.
OK or NG
- OK : GO TO 3.
- NG : Repair or replace harness.
  
  Fig 3: Checking Continuity Between BCM Connectors M18, M19 Terminals 12, 47 And Door Switch Connectors B8, B108 Terminal 2
  Courtesy of NISSAN MOTOR CO., U.S.A.

CHECK DOOR SWITCH

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

TERMINAL CONTINUITY CHART

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

OK or NG

OK : GO TO 4.
NG : Replace malfunctioning door switch.

Fig 4: Checking Continuity Between Terminal 2 And Door Switch Body
Courtesy of NISSAN MOTOR CO., U.S.A.

CHECK BCM OUTPUT SIGNAL
1. Connect BCM connectors.
2. Check voltage between BCM connectors M18, M19 terminals 12, 47 and ground.
  12 - Ground : Battery voltage
  
  47 - Ground : Battery voltage
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 ".
  
  Fig 5: Checking Voltage Between BCM Connectors M18, M19 Terminals 12, 47 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.