Check Key Switch

With CONSULT-II 

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

• When key is inserted in ignition key cylinder

  KEY ON SW : ON 

• When key is removed from ignition key cylinder

  KEY ON SW : OFF 

  Fig 1: CONSULT-II DISPLAY - "KEY ON SW"

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

Without CONSULT-II 

Check voltage between BCM connector M3 terminal 37 (B/W) and ground.

Fig 2: Identifying Voltage Between BCM Connector M3 Terminal 37 (B/W) And Ground

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

OK or NG 

OK : Key switch circuit is OK.

NG : GO TO 2.

1. Disconnect key switch connector.
2. Check continuity between key switch terminals 1 and 2.
   CONTINUITY SPECIFICATIONS
   
   

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

   Fig 3: Identifying Continuity Between Key Switch Terminals 1 And 2

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

OK or NG 

OK : Check the following.

• 15A fuse [No. 22, 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.