Door Switch Check

WARNING: This page is about a different car, the 2006 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.

DOOR CONDITION DATA MONITOR CHART

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

Fig 1: CONSULT II Display - Data Monitor

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

Without CONSULT-II

Check voltage between BCM connector and ground.

VOLTAGE MEASURING CHART

Item	Connector	Terminals		Condition of door	Voltage (V)(Approx.)
Item	Connector	(+)	(-)	Condition of door	Voltage (V)(Approx.)
RH	M18	12	Ground	OPEN	0
RH	M18	12		CLOSED	Battery voltage
LH	M20	62		OPEN	0
LH	M20	62		CLOSED	Battery voltage

OK or NG

OK: Door switches are OK.

NG: GO TO 2.

Fig 2: Checking Voltage Between BCM Connector And Ground

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

CHECK DOOR SWITCH CIRCUIT

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

Check continuity between front door switch connector (B) B8 (LH) or B108 (RH) terminal 1 and BCM connector (A) M18 or M20 terminals 12, 62.

CONTINUITY CHECK CHART

A		B		Continuity
Connector	Terminal	Connector	Terminal	Continuity
BCM: M18	12	Front door switch RH: B108	1	Yes
BCM: M20	62	Front door switch LH: B8	1	Yes

Fig 3: Checking Continuity Front Door Switch Terminal 1 And BCM Terminals 12, 62 And Ground

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

Check continuity between front door switch connector (B) B8 (LH) or B108 (RH) terminal 1 and ground.

CONTINUITY CHART

B		Ground	Continuity
Connector	Terminal
Front door switch LH: B8	1		No
Front door switch RH: B108	1

OK or NG

OK: GO TO 3.

NG: Repair or replace harness between BCM and front door switch.

CHECK DOOR SWITCH

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

TERMINAL CONTINUITY CHECK CHART

Terminal		Door switch	Continuity
1	Body ground part of door switch	Pushed	No
1	Body ground part of door switch	Released	Yes

OK or NG

OK: GO TO 4.

NG: Replace malfunctioning door switch.

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

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

CHECK BCM OUTPUT SIGNAL
1. Connect BCM connectors.
2. Check voltage between BCM connector M18 terminal 12 (RH), M20 terminal 62 (LH) and ground.
  12 - Ground: Battery voltage
  
  62 - 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 Terminals 12, 62 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.