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Infiniti QX56 (Z62). Manual - part 1157

SEC-18

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SYSTEM

VEHICLE SECURITY SYSTEM : System Description

INFOID:0000000006226185

• The vehicle security system has two alarm functions (theft warning alarm and panic alarm), and reduces the

possibility of a theft or mischief by activating horns and headlamps intermittently.

• The panic alarm does not start when the theft warning alarm is activating, and the panic alarm stops when

the theft warning alarm is activated.
The priority of the functions are as per the following.

THEFT WARNING ALARM

• The theft warning alarm function activates horns and headlamps intermittently when BCM detects that any

door or hood is opened by unauthorized means, while the system is in the ARMED state.

• Security indicator lamp on combination meter always blinks when power supply position is any position other

than ON. Security indicator lamp blinking warns that the vehicle is equipped with a vehicle security system.

Operation Flow

Priority

Function

Theft warning alarm

Panic alarm

JMKIA5416GB

No.

System state

Switching condition

DISARMED to
PRE-ARMED

When all conditions of A and
one condition of B is satis-
fied.

• Power supply position: OFF/LOCK
• All doors: Closed
• Hood: Closed

All doors are locked by:
• Door key cylinder LOCK switch
• LOCK button of Intelligent Key
• Door request switch

PRE-ARMED
to ARMED

When all of the following
conditions are satisfied for
30 seconds.

• Power supply position: OFF/LOCK
• All doors: Locked
• Hood: Closed

ARMED to
ALARM

When one condition of A and
one condition of B are satis-
fied.

Intelligent Key: Not used

• Any door: Open
• Hood: Open

DISARMED to
PRE-RESET

When all conditions of A and
one condition of B is satis-
fied.

• Power supply position: OFF/LOCK
• All doors: Closed
• Hood: Open

All doors are locked by:
• Door key cylinder LOCK switch
• LOCK button of Intelligent Key
• Door request switch

PRE-ARMED
to PRE-RESET

When one of the following
conditions is satisfied.

• Hood: Open

SYSTEM

SEC-19

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SEC

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 Intelligent Key or door request switch, Intelligent Key must be within

the detection area of outside key antenna. For details, refer to

DLK-18, "INTELLIGENT KEY SYSTEM : System Description"

• To open back door by operating back door opener switch, Intelligent Key must be within the detection area of outside key antenna. For

details, refer to

DLK-18, "INTELLIGENT KEY SYSTEM : 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 or hood is opened with-
out using Intelligent Key, 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 IPDM
E/R via CAN communication. In this phase, horns and headlamps are activated intermittently for approxi-
mately 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

ARMED to
PRE-RESET

No conditions.

ALARM to
PRE-RESET

PRE-RESET to
DISARMED

When one of the following
conditions is satisfied.

• Power supply position: ACC/ON/CRANKING/RUN
• Door key cylinder UNLOCK switch: ON
• UNLOCK button of Intelligent Key: ON
• Door request switch: ON
• Back door opener switch: ON
• UNLOCK switch of door lock and unlock switch: ON
• Any door: Open

PRE-RESET to
PRE-ARMED

When all of the following
conditions are satisfied.

• Power supply position: OFF/LOCK
• All doors: Closed
• Hood: Closed

PRE-ARMED
to DISARMED

When one of the following
condition is satisfied.

• Power supply position: ACC/ON/CRANKING/RUN
• Door key cylinder UNLOCK switch: ON
• UNLOCK button of Intelligent Key: ON
• AUTO BACK DOOR button of Intelligent Key: ON
• Door request switch: ON
• Back door opener switch: ON
• Any door: Open

ARMED to
DISARMED

When one of the following
condition is satisfied.

ALARM to
DISARMED

RE-ALARM

When one of the following
condition is satisfied after the
ALARM operation is finished.

• Any door: Open
• Hood: Open

No.

System state

Switching condition

SEC-20

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SYSTEM

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. If only the condi-
tion of hood is not satisfied, the system switches to the PRE-RESET phase. Then, when any condition is
changed, the system switches to the DISARMED phase or PRE-ARMED phase.

PANIC ALARM

• The panic alarm function activates horns and headlamps intermittently when the owner presses the PANIC

ALARM button of Intelligent Key outside the vehicle while the power supply position is OFF or LOCK.

• When BCM receives panic alarm signal from Intelligent Key, BCM transmits “Theft Warning Horn Request”

signal and “High Beam Request” signal intermittently to IPDM E/R via CAN communication. To prevent the
activation due to mis-operation of Intelligent Key by owner, the panic alarm function is activated when BCM
receives the signal for 0.4 - 0.6 seconds.

• Panic alarm operation is maintained for 25 seconds.
• Panic alarm operation is cancelled when BCM receives one of the following signals.
- LOCK button of Intelligent Key: ON
- UNLOCK button of Intelligent Key: ON
- PANIC ALARM button of Intelligent Key: Long pressed
- Any door request switch: ON

DIAGNOSIS SYSTEM (BCM)

SEC-21

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SEC

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)

INFOID:0000000006365349

APPLICATION ITEM

CONSULT-III performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.

: Applicable item

*: This item is indicated, but not used.

FREEZE FRAME DATA (FFD)

The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT-III.

Diagnosis mode

Function Description

Work Support

Changes the setting for each system function.

Self Diagnostic Result

Displays the diagnosis results judged by BCM. Refer to

BCS-57, "DTC Index"

CAN Diag Support Monitor

Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.

Data Monitor

The BCM input/output signals are displayed.

Active Test

The signals used to activate each device are forcibly supplied from BCM.

Ecu Identification

The BCM part number is displayed.

Configuration

• Read and save the vehicle specification.
• Write the vehicle specification when replacing BCM.

System

Sub system selection item

Diagnosis mode

Work Support

Data Monitor

Active Test

Door lock

DOOR LOCK

Rear window defogger

REAR DEFOGGER

Warning chime

BUZZER

Interior room lamp timer

INT LAMP

Exterior lamp

HEAD LAMP

Wiper and washer

WIPER

Turn signal and hazard warning lamps

FLASHER

—

AIR CONDITONER*

• Intelligent Key system
• Engine start system

INTELLIGENT KEY

Combination switch

COMB SW

Body control system

BCM

IVIS

IMMU

Interior room lamp battery saver

BATTERY SAVER

Back door

TRUNK

Vehicle security system

THEFT ALM

RAP system

RETAINED PWR

Signal buffer system

SIGNAL BUFFER

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