4. Check BCM (NATS Control Unit) Function

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Connect security indicator lamp.
Disconnect BCM.
Check voltage between BCM connector M18 terminal 23 and ground.
1. 23 (G/O) - Ground: Battery voltage

OK or NG

OK >> BCM is malfunctioning.
- Replace BCM.
  Ref. part No. A
- Perform initialization with CONSULT-II.
- For initialization, refer to CONSULT-II Operation Manual for NATS-IVIS/NVIS".
NG >> Check the following.
- Harness for open or short between security indicator lamp and BCM (NATS control unit).
- Indicator lamp condition

Fig 1: Checking Voltage Between BCM Connector M18 Terminal 23 & Ground

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