Nissan Leaf. Manual — part 1065
SEC-22
< SYSTEM DESCRIPTION >
[WITH INTELLIGENT KEY SYSTEM]
SYSTEM
INPUT/OUTPUT SIGNAL CHART
Input Signal Item
Output Signal Item
SYSTEM DESCRIPTION
• 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.
Transmit unit
Signal name
IPDM E/R
CAN communication
Power switch status signal
Remote keyless entry receiver
Key ID signal
Intelligent Key button operation signal
Hood switch
CAN communication
Hood switch signal
Power switch
Power switch operation signal
Each door switch
Door open/close condition signal
Each door request switch
Door lock/unlock request signal
Back door opener switch
Back door opener operation signal
Door key cylinder switch
Door key cylinder lock/unlock switch signal
Door lock and unlock switch
Door lock/unlock switch operation signal
Reception unit
Signal name
Combination meter
CAN communication
Security indicator lamp signal
IPDM E/R
Vehicle security horn request signal
High beam request signal
Outside key antenna
Key ID request signal
Priority
Function
1
Theft warning alarm
2
Panic alarm
SYSTEM
SEC-23
< SYSTEM DESCRIPTION >
[WITH INTELLIGENT KEY SYSTEM]
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Operation Flow
JMKIA5416GB
No.
System state
Switching condition
1
DISARMED to
PRE-ARMED
When all conditions of A and
one condition of B is satis-
fied.
A
B
• Power switch: OFF
• All doors: Closed
• Hood: Closed
All doors are locked by:
• Door key cylinder LOCK switch
• LOCK button of Intelligent Key
• Door request switch
• Door lock and unlock switch
2
PRE-ARMED
to ARMED
When all of the following
conditions are satisfied for
30 seconds.
• Power switch: OFF
• All doors: Locked
• Hood: Closed
3
ARMED to
ALARM
When condition A and one
condition of B are satisfied.
A
B
Intelligent Key: Not used
• Any door: Open
• Hood: Open
4
DISARMED to
PRE-RESET
When all conditions of A and
one condition of B are satis-
fied.
A
B
• Power switch: OFF
• All doors: Closed
• Hood: Open
All doors are locked by:
• Door key cylinder LOCK switch
• LOCK button of Intelligent Key
• Door request switch
5
PRE-ARMED
to PRE-RESET
When the following condition
is satisfied.
Hood: Open
6
ARMED to
PRE-RESET
No conditions.
7
ALARM to
PRE-RESET
8
PRE-RESET to
DISARMED
When one of the following
condition is satisfied.
• Power switch: ACC/ON
• 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
9
PRE-RESET to
PRE-ARMED
When one of the following
condition is satisfied.
• Power switch: OFF
• All doors: Locked
• Hood: Closed
10
PRE-ARMED
to DISARMED
When one of the following
condition is satisfied.
• Power switch: ACC/ON
• Door key cylinder UNLOCK switch: ON
• UNLOCK button of Intelligent Key: ON
• Door request switch: ON
• Back door opener switch: ON
• Any door: Open
SEC-24
< SYSTEM DESCRIPTION >
[WITH INTELLIGENT KEY SYSTEM]
SYSTEM
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-25, "DOOR LOCK FUNCTION : 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-25, "DOOR LOCK FUNCTION : 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
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.
• 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
11
ARMED to
DISARMED
When one of the following
condition is satisfied.
• Power switch: ACC/ON
• Door key cylinder UNLOCK switch: ON
• UNLOCK button of Intelligent Key: ON
• Door request switch: ON
• Back door opener switch: ON
12
ALARM to
DISARMED
13
RE-ALARM
When the following condition
is satisfied after the ALARM
operation is finished.
• Any door: Open
• Hood: Open
No.
System state
Switching condition
SYSTEM
SEC-25
< SYSTEM DESCRIPTION >
[WITH INTELLIGENT KEY SYSTEM]
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- PANIC ALARM button of Intelligent Key: Long pressed
- Any door request switch: ON
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