Door Switch Check

WARNING: This page is about a different car, the 2005 Nissan Titan. 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 SWITCH INPUT WITH CONSULT-II

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: Identifying CONSULT-II Display

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.

DOOR SWITCH INPUT WITHOUT CONSULT-II

Item	Connector	Terminals (Wire color)		Condition	Voltage (Approx.)
Item	Connector	(+)	(-)	Condition	Voltage (Approx.)
RH	M18	12 (R/L)	Ground	Door switch OPEN	0
RH	M18	12 (R/L)		Door switch CLOSE	Battery voltage
LH	M19	47 (SB)		Door switch OPEN	0
LH	M19	47 (SB)		Door switch CLOSE	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) terminal 2 (SB or R/L) and BCM connectors M18, M19 terminals 12 (R/L), 47 (SB).
  
  Fig 3: Checking Continuity Between Front Door Switch Connector B8 Or B108 Terminal 2 And BCM Connectors M18, M19 Terminals 12, 47
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Front door switch LH
  
  2 (SB) - 47 (SB) : Continuity should exist .
  
  Front door switch RH
  
  2 (R/L) - 12 (R/L) : Continuity should exist .
3. Check continuity between front door switch LH connector B8 or front door switch RH connector B108 terminal 2 (SB or R/L) and ground.
  2 (SB or R/L) - Ground : Continuity should not exist .
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 2 and body ground part of door switch.

Fig 4: Checking Continuity Between Door Switch Terminal 2 And Body Ground

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

DOOR SWITCHES CONTINUITY CHECK

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

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 (R/L), M19 terminal 47 (SB) and ground.
  
  Fig 5: Checking Voltage Between BCM Connector M18 Terminal 12 (R/L), M19 Terminal 47 (SB) And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  12 (R/L) - Ground : Battery voltage
  
  47 (SB) - 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 ".