Door Switch Check

WARNING: This page is about a different car, the 2007 Nissan Quest. 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 switches ("DOOR SW-DR" and "DOOR SW-AS") in "DATA MONITOR" mode with CONSULT-II.

DATA MONITOR REFERENCE

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

Fig 1: CONSULT-II Display - DATA MONITOR

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

Without CONSULT-II

Turn ignition switch OFF.

Check voltage between BCM connector and ground.

Fig 2: Checking Voltage Between BCM Connector And Ground

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

TERMINALS VOLTAGE CHART

Item	Connector	Terminals		Condition	Voltage (Approx.)
Item	Connector	(+)	(-)	Condition	Voltage (Approx.)
RH	M18	12	Ground	Door open (switch closed)	0
RH	M18	12		Door closed (switch open)	Battery voltage
LH	M19	47		Door open (switch closed)	0
LH	M19	47		Door closed (switch open)	Battery voltage

OK or NG

OK: Door switches are OK.

NG: GO TO 2.

CHECK DOOR SWITCH CIRCUIT
1. Disconnect front door switches and BCM connectors.
2. Check continuity between front door switch connector B8 (LH) or B108 (RH) (B) terminal 1 and BCM connector M18, M19 (A) terminals 12 and 47.
  Front door switch LH 1 - 47 : Continuity should exist.
  
  Front door switch RH 1 - 12 : Continuity should exist.
3. Check continuity between front door switch connector B8 (LH) or B108 (RH) (B) terminal 1 and ground.
  1 - Ground : Continuity should not exist.
  
  Fig 3: Checking Continuity Between Front Door Switch Connector Terminal 1 And BCM Connector Terminals 12 & 47, And Between Front Door Switch Connector Terminal 1 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: GO TO 3.

NG: Repair or replace harness between BCM and sunroof motor assembly.

CHECK DOOR SWITCHES

Check continuity between each door switch terminal 1 and body ground part of door switch.

TERMINALS CONTINUITY CHART

Terminal		Condition	Continuity
1	Body ground part of door switch	Door switch pushed	No
1	Body ground part of door switch	Door switch released	Yes

Fig 4: Checking Continuity Between Door Switch Terminal 1 And Body Ground Part Of Door Switch

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

OK or NG

OK: GO TO 4.

NG: Replace malfunctioning door switch.

CHECK BCM OUTPUT SIGNAL
1. Connect BCM connectors.
2. Check voltage between BCM connector M18 terminal 12, M19 terminal 47 and ground.
  12 - Ground : Battery voltage
  
  47 - Ground : Battery voltage
OK or NG

OK: Check the condition of the harness and the connector.

NG: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".

Fig 5: Checking Voltage Between BCM Connector M18, M19 Terminals 12, 47 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.