Key Switch (Insert) Check

WARNING: This page is about a different car, the 2005 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

CHECK KEY SWITCH INPUT SIGNAL
With CONSULT-II

Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT-II. Refer to "MULTI REMOTE ENT" .
- When key is inserted to 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 M18 terminal 37 and ground.

Fig 2: BCM Connector M18 Terminals Specification Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
- OK: System is OK.
- NG: GO TO 2.
Fig 3: Checking Voltage Between BCM Connector M18 Terminal 37 & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK KEY SWITCH (INSERT)
1. Turn ignition switch OFF.
2. Disconnect key switch and key lock solenoid.
3. Check continuity between key switch and key lock solenoid terminals 3, 4.
  
  Fig 4: Key Switch & Key Lock Solenoid Connector Terminals Continuity
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: Repair or replace harness.
- NG: Replace key switch.
Fig 5: Checking Continuity Between Key Switch & Key Lock Solenoid Connector Terminals
Courtesy of NISSAN MOTOR CO., U.S.A.