Check Key Switch Circuit (Without Intelligent Key)

1. CHECK KEY SWITCH (WITH CONSULT-II) 

   With CONSULT-II 

   Touch "BCM". With "IGN KEY SW" on the DATA MONITOR, Check ON/OFF operation.

   *: Refer to "DATA MONITOR "

   Fig 1: Identifying CONSULT II Display - DATA MONITOR

   Courtesy of NISSAN MOTOR CO., U.S.A.
   KEY SWITCH (WITH CONSULT-II)
   
   

   Monitor item [OPERATION or UNIT]		Contents
   IGN KEY SW*	"ON/OFF"	Key inserted (ON)/key removed (OFF) status judged from the key-in detection switch is displayed.

   OK or NG 

   OK: Key switch circuit is OK.

   NG: GO TO 2.

2. CHECK KEY SWITCH AND KEY LOCK SOLENOID POWER SUPPLY CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect key switch connector.
   3. Check voltage between key switch connector M23 terminal 2 and ground.

      2 (L/R) - Ground : Battery voltage. 

      Fig 2: Identifying Voltage Between Key Switch Connector M23 Terminal 2 And Ground

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

   OK or NG 

   OK: GO TO 3.

   NG: Check harness between key switch and fuse.

3. CHECK KEY SWITCH 

   Check continuity between key switch connector M23 terminal 1 and 2.

   Fig 3: Identifying CONSULT II Display - DATA MONITOR

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

   Connector	Terminal		Condition	Continuity
   M23	1	2	Key is inserted in ignition key cylinder.	Yes
   			Key is removed from ignition key cylinder.	No

   OK or NG 

   OK: GO TO 4.

   NG: Replace key switch.

4. CHECK HARNESS CONTINUITY 

1. Disconnect key switch connector and BCM connector.
2. Check continuity between key switch connector M23 terminal 1 and BCM connector M3 terminal 37.

   1 (B/W) - 37 (B/W) : Continuity should exist. 

3. Check continuity between key switch connector M23 terminal 1 and ground.

   1 (B/W) - Ground : Continuity should not exist. 

   Fig 4: Identifying Continuity Between Key Switch Connector M23 Terminal 1 And Ground

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

OK or NG 

OK: Key switch circuit is OK.

NG: Repair or replace harness between key switch and BCM.