Key Switch (Insert) Check

With CONSULT-III 

Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT-III. Refer to XX-XX, "*****".

• When key is inserted into ignition key cylinder:

  KEY ON SW : ON 

• When key is removed from ignition key cylinder:

  KEY ON SW : OFF 

  Without CONSULT-III 

  Check voltage between BCM connector and ground.

  VOLTAGE SPECIFICATION
  
  

  Connector	Terminals		Condition	Voltage (V) (Approx.)
  	(+)	(-)
  M18	37	Ground	Key is inserted.	Battery voltage
  			Key is removed.	0

  Fig 1: Checking Voltage Between BCM Connector And Ground

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

  OK or NG 

  OK: Key switch circuit is OK.

  NG-1: GO TO 2 (with Intelligent Key).

  NG-2: GO TO  3 (without Intelligent Key).

1. Turn ignition switch OFF.
2. Disconnect key switch and ignition knob switch connector.
3. Check continuity between key switch and ignition knob switch terminals.
   CONTINUITY CHART
   
   

   Terminal		Condition		Continuity
   Key switch and ignition knob switch
   1	2	Key	Inserted	Yes
   			Removed	No

   Fig 2: Checking Continuity Between Key Switch And Ignition Knob Switch Terminals

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

   OK or NG 

   OK: Check the following.

   • 10A fuse (No. 9, located in fuse and fusible link block)
   • Harness for open or short between key switch and ignition knob switch and fuse
   • Harness for open or short between BCM and key switch and ignition knob switch

   NG: Replace key switch and ignition knob switch.

1. Turn ignition switch OFF.
2. Disconnect key switch connector.
3. Check key switch.
   CONTINUITY CHART
   
   

   Terminals	Condition	Continuity
   1 - 2	Key is inserted.	Yes
   	Key is removed.	No

   Fig 3: Checking Key Switch (Without Intelligent Key)

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

   OK or NG 

   OK: Check the following.

   • 10A fuse [No. 19, located in fuse block (J/B)]
   • Harness for open or short between key switch and fuse
   • Harness for open or short between BCM and key switch

   NG: Replace key switch.