Door Lock/Unlock 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 LOCK/UNLOCK SWITCH INPUT SIGNAL

With CONSULT-II

Check door lock/unlock switch ("CDL LOCK SW", "CDL UNLOCK SW") in DATA MONITOR mode in CONSULT-II. Refer to "DATA MONITOR ".

When door lock/unlock switch is turned to LOCK:
CDL LOCK SW : ON
When door lock/unlock switch is turned to UNLOCK:
CDL UNLOCK SW : ON

Fig 1: Identifying CONSULT-II Display - DATA MONITOR

Without CONSULT-II

Check voltage between BCM connector M19 terminals 45, 46 and ground.

VOLTAGE CHART

Connector	Terminal		Condition	Voltage (V) (Approx.)
Connector	(+)	(-)	Condition	Voltage (V) (Approx.)
M19	46	Ground	Door lock/unlock switch is neutral.	Battery voltage
	46	Ground	Door lock/unlock switch is turned to UNLOCK.	0
	45	Ground	Door lock/unlock switch is neutral.	Battery voltage
	45	Ground	Door lock/unlock switch is turned to LOCK.	0

Fig 2: Checking Voltage Between BCM Connector M19 Terminals 45, 46 And Ground

OK or NG

OK: Door lock/unlock switch circuit is OK.

NG: GO TO 2.

CHECK DOOR LOCK/UNLOCK SWITCH

Turn ignition switch OFF.
Disconnect door lock/unlock switch.

Check continuity between main power window and door lock/unlock switch terminals 10, 11 and 14.

CONTINUITY REFERENCE CHART

Terminal		Condition	Continuity
10	14	Lock	Yes
10		Unlock/Neutral	No
11		Unlock	Yes
11		Lock/Neutral	No

Check continuity between power window and door lock/unlock switch RH terminals 1, 2 and 3.

CONTINUITY REFERENCE CHART

Terminal		Condition	Continuity
1	3	Lock	Yes
1		Unlock/Neutral	No
2		Unlock	Yes
2		Lock/Neutral	No

Fig 3: Checking Continuity Between Power Window And Door Lock/Unlock Switch Rh Terminals 1, 2 And 3

OK or NG

OK: GO TO 3.

NG: Replace door lock/unlock switch.

CHECK DOOR LOCK/UNLOCK SWITCH GROUND HARNESS
1. Disconnect main power window and door lock/unlock switch or power window and door lock/unlock switch RH.
2. Check continuity between main power window and door lock/unlock switch connector D7 terminal 14 and ground.
  14 - Ground : Continuity should exist.
  
  Fig 4: Checking Continuity Between Connector D7 Terminal 14 And Ground
3. Check continuity between power window and door lock/unlock switch RH connector D105 terminal 3 and ground
  3 - Ground : Continuity should exist.
  
  Fig 5: Checking Continuity Between Connector D105 Terminal 3 And Ground
OK or NG

OK: GO TO 4.

NG: Repair or replace harness.
CHECK DOOR LOCK SWITCH CIRCUIT
1. Disconnect BCM.
2. Check continuity between BCM connector M19 terminal 45 and main power window and door lock/unlock switch connector D7 terminal 10 or power window and door lock/unlock switch RH connector D105 terminal 1.
  1 - 45 : Continuity should exist.
  
  10 - 45 : Continuity should exist.
3. Check continuity between BCM connector M19 terminal 45 and ground.
  45 - Ground : Continuity should not exist.
  
  Fig 6: Checking Continuity Between BCM Connector M19 Terminal 45 And Ground
4. Check continuity between BCM connector M19 terminal 46 and main power window and door lock/unlock switch LH connector D7 terminal 11 or power window and door lock/unlock switch RH connector D105 terminal 2.
  2 - 46 : Continuity should exist.
  
  11 - 46 : Continuity should exist.
  
  Fig 7: Checking Continuity Between BCM Connector M19 Terminal 46 And Ground
5. Check continuity between BCM connector M19 terminal 46 and ground.
  46 - Ground : Continuity should not exist.
OK or NG

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

NG: Repair or replace harness.