Key Switch Check

With CONSULT 

Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT. Refer to , "CONSULT FUNCTION (BCM) ".

• 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 

Check voltage between BCM connector and ground.

Fig 1: Checking Key Switch Input Signal

Courtesy of NISSAN NORTH AMERICA, INC.

OK or NG 

OK: Key switch circuit is OK.

NG: GO TO 2.

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

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

   Fig 2: Checking Key Switch

   Courtesy of NISSAN NORTH AMERICA, INC.

   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.