Operation Flow

Fig 1: Vehicle Security (Theft Warning) System Operation Flow

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

Setting the Vehicle Security System 

Initial condition 

• Ignition switch is in OFF position.

Disarmed phase 

• When doors or back door is open, the vehicle security system is set in the disarmed phase on the assumption that the owner is inside or near the vehicle.
• When the vehicle security system is in the disarmed phase, the security indicator lamp blinks every 2.4 seconds.

Pre-armed phase and armed phase 

When the following operation 1 or 2 is performed, the vehicle security system turns into the "pre-armed" phase. (The security indicator lamp illuminates.)

1. BCM receives LOCK signal from front door key cylinder switch or key fob after, back door and all doors are closed.
2. Back door and all doors are closed after front doors are locked by key or door lock and unlock switch. The security indicator lamp illuminates for 30 seconds. Then, the system automatically shifts into the "armed" phase.

Canceling the Set Vehicle Security System 

When one of the following operations is performed, the armed phase is canceled.

1. Unlock the doors with the key or the key fob.
2. Turn ignition switch "ON" or "ACC" position.

Canceling the Alarm Operation of the Vehicle Security System 

When unlocking the door with the key or key fob the alarm operation is canceled.

Activating the Alarm Operation of the Vehicle Security System 

Make sure the system is in the armed phase. (The security indicator lamp blinks every 2.4 seconds.) When the following operation 1 or 2 is performed, the system sounds the horns and flashes the headlamps for about 50 seconds.

1. Back door or any door is opened during armed phase.
2. Disconnecting and connecting the battery connector before canceling armed phase.