Door Switch Check

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. 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.

MONITORED ITEM DESCRIPTION CHART

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

Fig 1: Identifying CONSULT II Display - DATA MONITOR

Without CONSULT-II

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

VOLTAGE SPECIFICATION CHART

Item	Terminal		Condition	Voltage (Approx.)
Item	(+)	(-)	Condition	Voltage (Approx.)
RH door switch	12	Ground	DOOR OPEN (Switch closed)	0
RH door switch	12		DOOR CLOSED (Switch open)	Battery voltage
LH door switch	47		DOOR OPEN (Switch closed)	0
LH door switch	47		DOOR CLOSED (Switch open)	Battery voltage

Fig 2: Checking Voltage Between BCM Connector M18, M19 Terminals 12, 47 And Ground

OK or NG

OK: Door switch circuit is OK.

NG: GO TO 2.

CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch and BCM connectors.
3. Check continuity between BCM connector 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.
  
  Fig 3: Checking Continuity Between BCM Connector M18, M19 Terminals 12, 47 And Ground
OK or NG

OK: GO TO 3.

NG: Repair or replace harness.

CHECK DOOR SWITCH

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

TERMINAL CONTINUITY REFERENCE CHART

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

Fig 4: Checking Continuity Between Door Switches Terminal 2 And Ground Part Of Door Switch

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, M19 terminals 12, 47 and ground.
  12 - Ground : Battery voltage
  
  47 - Ground : Battery voltage
  
  Fig 5: Checking Voltage Between BCM Connector M18, M19 Terminals 12, 47 And Ground
OK or NG

OK: Further inspection is necessary. Refer to "TROUBLE DIAGNOSIS CHART BY SYMPTOM ".

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