"Security Indicator Lamp Does Not Light Up"

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 FUSE
Check 10A fuse [No.19, located in the fuse block (J/B)]

OK or NG
1. OK: GO TO 2.
2. NG: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
CHECK SECURITY INDICATOR LAMP
1. Start engine and turn ignition switch OFF.
2. Check the security indicator lamp lights up.
  1. Security indicator lamp should light up.
OK or NG
1. OK: Inspection End.
2. NG: GO TO 3.
CHECK SECURITY INDICATOR LAMP POWER SUPPLY CIRCUIT
1. Disconnect security indicator lamp.
2. Check voltage between security indicator lamp connector M24 terminal 8 and ground.
  1. 8 (Y/R) - Ground: Battery voltage
OK or NG
1. OK: GO TO 4.
2. NG: Repair or replace harness.
Fig 1: Checking Voltage Between Security Indicator Lamp Connector M24 Terminal 8 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK BCM (NATS CONTROL UNIT) FUNCTION
1. Connect security indicator lamp.
2. Disconnect BCM.
3. Check voltage between BCM connector M18 terminal 23 and ground.
  1. 23 (G/O) - Ground: Battery voltage
OK or NG
1. OK: BCM is malfunctioning.
  - Replace BCM.
    Ref. part No. A
  - Perform initialization with CONSULT-II.
  - For initialization, refer to "CONSULT-II Operation Manual NATS-IVIS/NVIS".
2. NG: Check the following.
  - Harness for open or short between security indicator lamp and BCM (NATS control unit).
  - Indicator lamp condition
Fig 2: Checking Voltage Between BCM Connector M18 Terminal 23 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.