Key Switch (Insert) Check

WARNING: This page is about a different car, the 2005 Infiniti QX56. 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 "DATA MONITOR ".
- When key is inserted to ignition key cylinder:
  1. KEY ON SW: ON
- When key is removed from ignition key cylinder:
  1. KEY ON SW: OFF
  Fig 1: Identifying "KEY ON SW" In Data Monitor Mode
  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 And Ground Voltage Specification Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking Voltage Between BCM Connector M18 Terminal 37 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: System is OK.
2. NG: GO TO 2.
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 And Key Lock Solenoid Terminals Continuity Specification Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 5: Checking Continuity Between Key Switch And Key Lock Solenoid Terminals 3 And 4
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Repair or replace harness.
2. NG: Replace key switch.