Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL 
   1. Turn ignition switch ON.
   2. Check voltage between main power window and door lock/unlock switch connector and ground.

      Terminals			Key position	Voltage (V) (Approx.)
      (+)		(-)
      Main power window and door lock/unlock switch connector	Terminal
      D7	4	Ground	Lock	0
      			Neutral/Unlock	5
      	6		Unlock	0
      			Neutral/Lock	5

      Fig 1: Checking Voltage Between Main Power Window And Door Lock/Unlock Switch Connector And Ground

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the measurement value within the specification? 

      YES: Replace main power window and door lock/unlock switch. Refer to "REMOVAL AND INSTALLATION ".

      NO: GO TO 2

2. CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect main power window and door lock/unlock switch and front door lock assembly LH (key cylinder switch).
   3. Check continuity between main power window and door lock/unlock switch connector and front door lock assembly LH (key cylinder switch) connector.

      Main power window and door lock/unlock switch connector	Terminal	Front door lock assembly LH (key cylinder switch) connector	Terminal	Continuity
      D7 (A)	4	D14 (B)	1	Yes
      	6		6

   4. Check continuity between main power window and door lock/unlock switch connector and ground.

      Main power window and door lock/unlock switch connector	Terminal	Ground	Continuity
      D7 (A)	4		No
      	6

      Fig 2: Checking Continuity Between Main Power Window And Door Lock/Unlock Switch Connector And Ground

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO 3

      NO: Repair or replace harness.

3. CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT 

   Check continuity between front door lock assembly LH (key cylinder switch) connector and ground.

   Front door lock assembly LH (key cylinder switch) connector	Terminal	Ground	Continuity
   D14	5		Yes

   Fig 3: Checking Continuity Between Front Door Lock Assembly LH Connector And Ground

   Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal? 

   YES: GO TO 4

   NO: Repair or replace harness.

4. CHECK DOOR KEY CYLINDER SWITCH 

   Check door key cylinder switch.

   Refer to "COMPONENT INSPECTION ".

   Is the inspection result normal? 

   YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

   NO: Replace front door lock assembly LH (door key cylinder switch). Refer to "REMOVAL AND INSTALLATION " (with Intelligent Key) or "REMOVAL AND INSTALLATION " (without Intelligent Key).