Check Key Switch

With CONSULT-III 

Check ignition key switch "KEY ON SW" in "DATA MONITOR" mode with CONSULT-III.

• When key is inserted in 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.

Fig 1: Identifying 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: GO TO 2. (With Intelligent Key)

NG: GO TO  3. (Without Intelligent Key)

1. Disconnect key switch and ignition knob switch connector.
2. Check continuity between key switch or key switch and ignition knob switch terminals 3 and 4.
   Fig 2: Identifying Continuity Between Key Switch And Ignition Knob Switch Connector Terminals 3 And 4

   Courtesy of NISSAN MOTOR CO., U.S.A.
   KEY SWITCH (WITH INTELLIGENT KEY)
   
   

   Terminal		Condition of key switch	Continuity
   3	4	Key is inserted in IGN key cylinder.	Yes
   		Key is removed from IGN key cylinder.	No

OK or NG 

OK: Check the following.

• 15A fuse (No. 22, located in fuse and fusible link block)
• Harness for open or short between key switch and fuse
• Harness for open or short between BCM and key switch

NG: Replace key switch or key switch and ignition knob switch.

1. Disconnect key switch connector.
2. Check continuity between key switch terminals 1 and 2.
   Fig 3: Identifying Continuity Between Key Switch Terminals 1 And 2

   Courtesy of NISSAN MOTOR CO., U.S.A.
   KEY SWITCH (WITHOUT INTELLIGENT KEY)
   
   

   Terminal		Condition of key switch	Continuity
   1	2	Key is inserted in IGN key cylinder.	Yes
   		Key is removed from IGN key cylinder.	No

OK or NG 

OK: Check the following.

• 15A fuse (No. 22, located in fuse and fusible link block)
• Harness for open or short between key switch and fuse
• Harness for open or short between BCM and key switch

NG: Replace key switch or key switch and ignition knob switch.