2008 NISSAN LATIO door lock

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Page 496 of 2771

NISSAN LATIO 2008 Service Repair Manual BL-62
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
Check keyfob function using Remote Keyless Entry Tester J-43241.
OK or NG
OK >> Keyfob is OK.
NG1 >> (Without CONSULT-III) Replace keyfob.
NG2

Page 497 of 2771

NISSAN LATIO 2008 Service Repair Manual REMOTE KEYLESS ENTRY SYSTEM
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• When doors are closed:
Without CONSULT-III
Check voltage between BCM connector M18 or M19 terminals 12, 13

Page 498 of 2771

NISSAN LATIO 2008 Service Repair Manual BL-64
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
4. Check continuity between door switch connector (B) B8 (front
LH), B108 (front RH) terminal 2 or (C) B6 (rear LH), B116 (rear
RH) terminal

Page 499 of 2771

NISSAN LATIO 2008 Service Repair Manual REMOTE KEYLESS ENTRY SYSTEM
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Check continuity between back door lock assembly connector D405
terminal 4 and ground.
OK or NG
OK >> Back doo

Page 509 of 2771

NISSAN LATIO 2008 Service Repair Manual INTELLIGENT KEY SYSTEM
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1. Horn (Low) E18, E20
(view with front fascia removed)2. Horn (High) E21, E22 3. Horn relay H-1
4. Instrument pane

Page 510 of 2771

NISSAN LATIO 2008 Service Repair Manual BL-76
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
System Description
INFOID:0000000001703999
• The Intelligent Key system is a system that makes it possible to lock and unlock the door locks (doo

BL-76
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
System Description
INFOID:0000000001703999
• The Intelligent Key system is a system that makes it possible to lock and unlock the door locks (door lock/
unlock function), and start the engine (engine start function) by carrying around the Intelligent Key (without
some key operation), which operates based on the results of electronic ID verification using two-way com-
munications between the Intelligent Key and the vehicle (Intelligent Key unit).
• Vehicles equipped with a manual transmission include a key interlock solenoid located in the steering col-
umn to prevent accidental shut-off of the ignition switch and locking of the steering wheel during driving con-
dition when the vehicle is moving.
CAUTION:
The driver should always carry the Intelligent Key
• Operation of the remote controller buttons on the Intelligent Key also provides the same functions as the
remote control entry system. (Remote keyless entry functions)
• If an action that does not meet the operating conditions of the Intelligent Key system is taken, the buzzer
goes off to inform the driver. (Warning chime functions)
• When a door lock is locked or unlocked with request switch or remote controller button operation, the hazard
lamps flash and the buzzer (outside vehicle) sounds (Hazard and buzzer reminder function).
• Even if the Intelligent Key battery is completely discharged, the door locks can be locked and unlocked and
the engine started with the mechanical key built into the Intelligent Key.
• The settings for each function can be changed with the CONSULT-III.
• If an Intelligent Key is lost, a new Intelligent Key can be registered. A maximum of 4 Intelligent Keys can be
registered.
• It has been made possible to diagnose the system and register an Intelligent Key with the CONSULT-III.
DOOR LOCK/UNLOCK FUNCTION
Only when pressing the request switch, it is possible to lock and unlock the door by carrying around the Intelli-
gent Key (without some key operation).
System Diagram
Operation Description
• When the Intelligent Key unit detects that each request switch is pressed, it starts the outside key antenna
and inside key antenna corresponding to the pressed request 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 antenna 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 Key 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 operates 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 lock/unlock operations are not performed even if the request
switch is operated.
LIIA2926E

Page 511 of 2771

NISSAN LATIO 2008 Service Repair Manual INTELLIGENT KEY SYSTEM
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*: Even with a registered Intelligent Key remaining inside the vehicle, door locks can be unlocked from outside of

INTELLIGENT KEY SYSTEM
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*: 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/unlock 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 switch 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-
101, "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 areaAll 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 unlock
Request switch operation Hazard warning lamp flashIntelligent Key warning buzzer (front door LH)
Intelligent Key warning buzzer (trunk)*
Unlock Once Once
Lock Twice Twice

Page 512 of 2771

NISSAN LATIO 2008 Service Repair Manual BL-78
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
* : Hatchback
** : Sedan
KEY REMINDER FUNCTION
Key reminder functions have the following 2 functions.
CAUTION:
• The above function operates whe

BL-78
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
* : Hatchback
** : Sedan
KEY REMINDER FUNCTION
Key reminder functions have the following 2 functions.
CAUTION:
• The above function operates when the Intelligent Key is inside the vehicle. However, there may be
times when the Intelligent Key cannot be detected, and this function will not operate when the Intelli-
gent Key is on the instrument panel, rear parcel shelf or in the glove box. Also, this system some-
times does not operate if the Intelligent Key is in the door pocket of an open door.
List of Operation Related Parts
Parts marked with × are the parts related to operation
REMOTE KEYLESS ENTRY FUNCTIONS
The Intelligent Key has the same functions as the remote keyless entry system. Therefore, it can be used in
the same manner as the keyfob by operating the door lock/unlock button.
Door lock open function
Intelligent Key
Key switch
Ignition knob switch
Door switch
Back door lock assembly (back door switch)
*
Request switch (driver, passenger, back)
Door lock actuator
Inside key antenna
Outside key antenna
Intelligent Key warning buzzer (front door LH)
Intelligent Key warning buzzer (trunk)
**
Intelligent Key unit
CAN communication system
BCM
Hazard warning lamp
Door lock/unlock function by request switch××××××××××
Door lock/unlock function by mechanical key××
Hazard and buzzer reminder function××××××
Auto door lock function×××× × ×××
Key reminder function Operation condition Operation
Door is open to closeRight after all doors are closed under the following conditions.
• Intelligent Key is inside the vehicle
• Any door is opened
• All doors are locked by door lock and unlock switch or door
lock knob• All doors unlock operation
• Sound Intelligent Key warn-
ing buzzer for 3 seconds
Key reminder functions
Intelligent 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 to close×××××××××

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