2009 NISSAN LATIO Service Repair Manual

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NISSAN LATIO 2009 Service Repair Manual BL
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• When registering an additional keyfob, the existing ID codes
in memory may or may not be erased. If five ID
codes are stored in memory, when an additional code is registered,

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NISSAN LATIO 2009 Service Repair Manual BL
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NISSAN LATIO 2009 Service Repair Manual BL
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Operation Description
• When the Intelligent Key unit detects that each request sw itch is pressed, it starts the outside key antenna
and inside key antenna corresponding to the pr

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Operation Description
• When the Intelligent Key unit detects that each request sw itch is pressed, it starts the outside key antenna
and inside key antenna corresponding to the pressed r equest switch and sends the request signal to the
Intelligent Key. And then, make sure that the Intelligent Key is near door.
• If the Intelligent Key is within the outside key ant enna detection area, it receives the request signal and
sends the key ID signal to the Intelligent Key unit.
• Intelligent Key unit receives the key ID signal and compares it with the registered key ID.
• If the key ID check result is OK, the Intelligent Ke y unit sends the door lock/unlock request signal to BCM
(Body control module) via CAN communication line.
• Intelligent Key unit sends the door lock/unlock signal and sounds Intelligent Key warning buzzer (lock: 2 times, unlock: 1 time) at the same time.
• When BCM receives the door lock/unlock signal, it oper ates door lock actuator and flashes the hazard warn-
ing lamp (lock: 2 times, unlock: 1 time) at the same time as reminder.
Operation Condition If the following conditions are not satisfied, door lo ck/unlock operations are not performed even if the request
switch is operated.
*: Even with a registered Intelligent Key remaining inside the vehicle, door locks can be unlocked from outside of the vehicle with a spare
Intelligent Key as long as Key IDs are different.
Outside Key Antenna Detection Area The outside key antenna detection area of door lock/unloc k function is in the range of approximately 80 cm
(31.50 in) surrounding the request switch (driver side, passenger side and back door or trunk area).
Hazard and Buzzer Reminder When all doors and trunk (sedan) are locked or unlocked by each request switch, Intelligent Key unit sends
hazard request signal to BCM via CAN communication line.
BCM flashes hazard warning lamps as a reminder and Intelligent Key unit sounds Intelligent Key warning
buzzer(s) as a reminder.
Operating function of hazard and buzzer reminder
* : Sedan only
Auto Door Lock Function When all doors and trunk (sedan) are locked, ignition knob sw itch is OFF (when ignition switch is not pressed)
and key switch is OFF (when mechanical key is out of ignition key cylinder), all doors are unlocked with each
request switch.
When Intelligent Key unit does not receive the following signals within 1 minute, all doors are locked.
• Door switch is ON (door is opened)
• Trunk lamp switch (sedan) is ON (trunk is opened)
• Door lock signal from Intelligent Key button
• Ignition knob switch is ON (ignition switch is pressed)
• Key switch is ON (mechanical key is inserted in ignition key cylinder)
Auto door lock mode can be changed by “AUTO RELOCK TIMER” mode in “WORK SUPPORT”. Refer to BL-117, " CONSULT-III Application Item " .
List of Operation Related Parts Parts marked with × are the parts related to operation.
Each request switch operation Operation condition Operation
Lock operation • All doors and trunk (sedan) are closed
• Intelligent Key is outside of the vehicle
• Intelligent Key is within outside key antenna detection area All doors lock
Unlock Operation • All doors and trunk (sedan) are closed
• Intelligent Key is outside of the vehicle
• Intelligent Key is within outside key antenna detection area* All doors unlockRequest switch operation Hazard warning lamp flash
Intelligent Key warning buzzer (front door LH)
Intelligent Key warning buzzer (trunk) *
Unlock Once Once Lock Twice Twice

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NISSAN LATIO 2009 Service Repair Manual Key reminder functionsIntelligent Key
Door switch
Unlock sensor
Door lock actuator
Inside key antenna
Intelligent Key warning buzzer(s)
Intelligent Key unit
CAN communication system
BCM
Any door open

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NISSAN LATIO 2009 Service Repair Manual BL
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System Diagram
Door Lock/Unlock Function • When door lock/unlock button of the Intelligent Key is pr essed, lock signal or unlock signal is sent from Intel-
ligent Key to Intelligent Key un

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System Diagram
Door Lock/Unlock Function • When door lock/unlock button of the Intelligent Key is pr essed, lock signal or unlock signal is sent from Intel-
ligent Key to Intelligent Key unit.
• Intelligent Key unit sends the door lock/unlock request signal to BCM via CAN communication line.
• Intelligent Key unit sends the door lock/unlock signal and sounds Intelligent Key warning buzzer(s) (lock: 2 times, unlock: 1 time) at the same time.
• When BCM receives the door lock/unlock signal, it oper ates door lock actuator and flashes the hazard warn-
ing lamp (lock: 2 times, unlock: 1 time) at the same time as reminder.
Operation Condition
Hazard and Buzzer Reminder When all doors are locked or unlocked by Intelligent Ke y button, Intelligent Key unit sends hazard request sig-
nal to BCM via CAN communication line.
BCM flashes hazard warning lamps as a reminder and Intelligent Key unit sounds Intelligent Key warning
buzzer as a reminder.
Operating function of hazard and buzzer reminder
Auto Door Lock Function When all doors are locked, ignition knob switch is OFF (when ignition switch is not pressed) and key switch is
OFF (when mechanical key is out of ignition key cyli nder), doors are unlocked with Intelligent Key button.
When Intelligent Key unit does not receive the following signals within 1 minute, all doors are locked.
• Door switch is ON (door is opened)
• Trunk lamp switch (sedan) is ON (trunk is opened)
• Door is locked
• Ignition knob switch is ON (ignition switch is pressed)
• Key switch is ON (mechanical key is inserted in ignition switch)
Auto door lock mode can be changed by “AUTO RELOCK TIMER” mode in “WORK SUPPORT”. Refer to BL-117, " CONSULT-III Application Item " .
Panic Alarm Function When ignition knob switch is OFF (ignition switch is not pressed), or key switch is OFF (mechanical key is not
inserted in key cylinder), pressing and holding the panic alarm button on Intelligent Key will send a panic alarm
signal to Intelligent Key unit.
Intelligent Key unit sends alarm request signal to BCM via CAN communication line.
BCM sends headlamp request signal and horn signal to IPDM E/R. Then, IPDM E/R turns on and off head-
lamp and horn intermittently. Intelligent Key button operation Hazard warning lamp flash Intelligent Key warning buzzer(s) Horn
Lock Twice — Once
Unlock Once — —

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