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Theft Warning Alarm

OPERATION FLOW

Fig 1: Theft Warning Alarm Operation Flow Diagram
G06936224Courtesy of NISSAN NORTH AMERICA, INC.
No. System state Switching condition
1 DISARMED to PRE-ARMED When all conditions of A and one condition of B is satisfied. A B
  • Ignition switch: OFF
  • All doors: Closed
All doors are locked by:
  • Door key cylinder LOCK switch
  • LOCK button of Keyfob
  • Door lock and unlock switch
2 PRE-ARMED to ARMED When all of the following conditions are satisfied for 30 seconds.
  • Ignition switch: OFF
  • All doors: Locked
3 ARMED to ALARM When all conditions of A and B are satisfied. A B
Keyfob: Not used
  • Any door: Open
4 DISARMED to PRE-RESET No conditions.  
5 PRE-ARMED to PRE-RESET
6 ARMED to PRE-RESET
7 ALARM to PRE-RESET
8 PRE-RESET to DISARMED
9 PRE-RESET to PRE-ARMED
10 PRE-ARMED to DISARMED When one of the following condition is satisfied.
  • Ignition switch: ACC/ON
  • Door key cylinder UNLOCK switch: ON
  • UNLOCK button of Keyfob: ON
  • UNLOCK switch of door lock and unlock switch: ON
  • Any door: Open
11 ARMED to
DISARMED
When one of the following condition is satisfied.
  • Ignition switch: ACC/ON
  • Door key cylinder UNLOCK switch: ON
  • UNLOCK button of Keyfob: ON
12 ALARM to
DISARMED
13 RE-ALARM When the following condition is satisfied after the ALARM operation is finished.
  • Any door: Open
NOTE:
  • BCM ignores the door key cylinder UNLOCK switch signal input for 1 second after the door key cylinder LOCK switch signal input.
  • To lock/unlock all doors by operating remote controller button of Keyfob, the Keyfob must be within the detection area of remote keyless entry receiver. For details, refer to SYSTEM DESCRIPTION .

DISARMED PHASE

The vehicle security system is not set in the DISARMED phase. The vehicle security system stays in this phase while any door is open, because it is assumed that the owner is inside or nearby the vehicle. Security indicator lamp blinks every 2.4 seconds.

When the vehicle security system is reset, each phase switches to the DISARMED phase directly.

PRE-ARMED PHASE

The PRE-ARMED phase is the transient state between the DISARMED phase and the ARMED phase. This phase is maintained for 30 seconds, so that the owner can reset the setting due to a mis-operation. This phase switches to the ARMED phase when vehicle conditions are not changed for 30 seconds. Security indicator lamp illuminates while being in this phase.

To reset the PRE-ARMED phase, refer to the switching condition of No. 10 in the table above.

ARMED PHASE

The vehicle security system is set, and BCM monitors all necessary inputs. If any door is opened without using Keyfob, vehicle security system switches to the ALARM phase. Security indicator lamp blinks every 2.4 seconds.

To reset the ARMED phase, refer to the switching condition of No. 11 in the table above.

ALARM PHASE

BCM transmits "Theft Warning Horn Request" signal and "High Beam Request" signal intermittently to EPDM E/R via CAN communication. In this phase, horns and headlamps are activated intermittently for approximately 50 seconds to warn that the vehicle is accessed by unauthorized means. ON/OFF timing of horns and headlamps are synchronized. After 50 seconds, the vehicle security system returns to the ARMED phase. At this time, if BCM still detects unauthorized access to the vehicle, the system is switched to the ALARM phase again. This RE-ALARM operation is carried out a maximum of 2 times.

To cancel the ALARM operation, refer to the switching condition of No. 12 in the table above.

NOTE:

If a battery terminal is disconnected during the ALARM phase, theft warning alarm stops. But when the battery terminal is reconnected, theft warning alarm is activated again.

PRE-RESET PHASE

The PRE-RESET phase is the transient state between each phase and DISARMED phase.

PRE-ARMED phase is not available for this models.