Door Switch Check

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FRONT DOOR SWITCH INPUT SIGNAL

With CONSULT-II

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

MONITOR ITEM AND CONDITION

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: Display CONSULT II (Data Monitor)

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

Without CONSULT-II

Check voltage between BCM connector and ground.

BCM CONNECTORS VOLTAGE

Item	Connector	Terminals (Wire color)		Condition	Voltage (V) (Approx.)
		(+)	(-)
Front RH	M18	12 (GY/L)	Ground	OPEN	0
				CLOSE	Battery voltage
Front LH	M20	62 (GY/R)		OPEN	0
				CLOSE	Battery voltage

OK or NG

OK: Front door switch is OK.
NG: GO TO 2.

Fig 2: Checking Voltage Between BCM Connectors And Ground

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

CHECK FRONT DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front door switch LH or RH and BCM connector.
3. Check continuity between front door switch connector B8 (LH) or B108 (RH) terminal 1 and BCM connector M18 terminal 12 and connector M20 terminal 62.
  1. Front LH
  2. 1 (GY/R) -62 (GY/R): Continuity should exist.
  3. Front RH
  4. 1 (GY/L) -12 (GY/L): Continuity should exist.
4. Check continuity between front door switch connector B8 (LH) or B108 (RH) terminal 2 and ground.
  1. 1 (GY/R or GY/L) - Ground: Continuity should not exist.
  Fig 3: Checking Continuity Between Front Door Switch Connector Terminals And BCM Connector Terminals
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  OK or NG
  1. OK: GO TO 3.
  2. NG: Repair or replace harness.

CHECK DOOR SWITCH

Disconnect front door switch LH or RH.
Check continuity between each front door switch terminal 1 and body ground part of front door switch.

FRONT DOOR SWITCH TERMINALS CONTINUITY

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

OK or NG

OK: Further inspection is necessary. Refer to symptom chart.
NG: Replace malfunctioning front door switch.

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

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