Door Lock/Unlock Switch Check

1. 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: Consult-II Display - DATA Monitor

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

   Without CONSULT-II

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

   TERMINALS CONDITION CONTINUITY CHART
   
   

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

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

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

   OK or NG 

   OK: Door lock/unlock switch circuit is OK.

   NG: GO TO 2.

2. CHECK DOOR LOCK/UNLOCK SWITCH 
   1. Turn ignition switch OFF.
   2. Disconnect door lock/unlock switch.
   3. Check continuity between main power window and door lock/ unlock switch terminals 10,11 and 14.
      TERMINALS CONDITION CONTINUITY CHART
      
      

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

   4. Check continuity between power window and door lock/unlock switch RH terminals 1, 2 and 3.
   TERMINALS CONDITION CONTINUITY CHART
   
   

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

   Fig 3: Checking Continuity Between Power Window And Door Lock/Unlock Switch RH Terminals

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

   OK or NG 

   OK: GO TO 3.

   NG: Replace door lock/unlock switch.

3. 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 Main Power Window And Door Lock/ Unlock Switch

      Courtesy of NISSAN MOTOR CO., U.S.A.
   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 Power Window And Door Lock/Unlock Switch Rh Connector

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

   OK or NG 

   OK: GO TO 4.

   NG: Repair or replace harness.

4. 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 And Ground

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

   5. Check continuity between BCM connector M19 terminal 46 and ground.

      46 - Ground: Continuity should not exist  .

      OK or NG 

   Fig 7: Checking Continuity Between BCM Connector M19 Terminal And Ground

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

   OK: GO TO 5.

   NG: Repair or replace harness.

5. CHECK BCM OUTPUT VOLTAGE 
   1. Connect BCM.
   2. Check voltage between BCM connector M19 terminals 45, 46 and ground.

      45 - Ground: Battery voltage 

      46 - Ground: Battery voltage 

Fig 8: Checking Voltage Between BCM Connector M19 Terminals And Ground

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

OK or NG 

OK: Check condition of the harness and connector.

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