2007 INFINITI M35 Factory Service Manual

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INFINITI M35 2007 Factory Service Manual BL-44
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
7. Unified meter and A/C amp. M64, M65 8. Trunk opener cancel switch M99 9. Front door switch (Driver side) B11
10. Rear door switch LH B5

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INFINITI M35 2007 Factory Service Manual INTELLIGENT KEY SYSTEM
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INFINITI M35 2007 Factory Service Manual BL-46
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
1. Intelligent Key warning buzzer E37 2. Remote keyless entry receiver M89
(View with instrument lower panel
RH removed) 3. Intelligen

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INFINITI M35 2007 Factory Service Manual INTELLIGENT KEY SYSTEM
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System DescriptionNIS001X8
The Intelligent Key system is a system that makes it possible to lock and unlock the

INTELLIGENT KEY SYSTEM
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System DescriptionNIS001X8
The Intelligent Key system is a system that makes it possible to lock and unlock the door locks (door lock/
unlock function), open the trunk (trunk open function), and start the engine (engine start function) by carry-
ing around the Intelligent Key (without some key operation), which operates based on the results of elec-
tronic ID verification using two-way communications between the Intelligent Key and the vehicle
(Intelligent Key unit).
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 controller 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, unlocked or trunk open with request switch or remote controller button opera-
tion, the hazard lamps flash and the Intelligent Key warning buzzer or horn sounds (Hazard and buzzer/
horn reminder function).
Even if the Intelligent Key battery is completely discharged, the door locks can be locked and unlocked
with the mechanical key built into the Intelligent Key, and then initiates engine by inserting Intelligent Key
into key slot.
The settings for each function can be changed with the CONSULT-II.
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-II.
DOOR LOCK/UNLOCK/TRUNK OPEN FUNCTION
Only when pressing the request switch, it is possible to lock and unlock the door and open the trunk by carry-
ing around the Intelligent Key (without some key operation).
System Diagram
Operation Description/Door Lock/Unlock
When the Intelligent Key unit detects that each door request switch is pressed, it starts the outside key
antenna and inside key antenna corresponding to the pressed door request switch and sends the request
signal to the Intelligent Key. And then, make sure that the Intelligent Key is near the 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 via remote keyless entry receiver.
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 buzzer warning (lock: 1
time, unlock: 2 times) at the same time.
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INFINITI M35 2007 Factory Service Manual BL-48
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
When BCM receives the door lock/unlock signal, it operates door lock actuator and flashes the hazard
lamp (lock: 1 time, unlock: 2 times)

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INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
When BCM receives the door lock/unlock signal, it operates door lock actuator and flashes the hazard
lamp (lock: 1 time, unlock: 2 times) at the same time as a reminder.
Operation Description/Trunk Open
When the Intelligent Key unit detects that trunk open request switch is pressed, it starts the outside key
antenna (trunk room) and inside key antenna corresponding to the pressed trunk open request switch and
sends the request signal to the Intelligent Key. And then, make sure that the Intelligent Key is near the
trunk.
If the Intelligent Key is within the outside key antenna (trunk room) detection area, it receives the request
signal and sends the key ID signal to the Intelligent Key unit via remote keyless entry receiver.
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 trunk open request signal to BCM (Body
control module) via CAN communication line.
Intelligent Key unit sends the trunk open request signal and sounds Intelligent Key warning buzzer 4 times
at the same time.
When BCM receives the trunk open request signal, it operates the trunk lid opener actuator and opens the
trunk.
Operation Condition
If the following conditions are not satisfied, door lock/unlock or trunk open operations are not performed even
if the request switch is operated.
*: Even with a registered Intelligent Key remain inside the vehicle, door locks can be unlock from outside of the vehicle with a spare Intel-
ligent 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
driver and passenger door handles (1). The outside key antenna
detection area of trunk open function is in the range of approximately
80 cm (31.50 in) surrounding Trunk opener request switch (2). How-
ever, this operating range depends on the ambient conditions.
Each request switch operation Operation condition
Lock operation
All doors are closed
Ignition switch is in OFF position
Intelligent Key is out of key slot
Intelligent Key is outside the vehicle
Intelligent Key is within outside key antenna detection area
Unlock Operation
Intelligent Key is outside the vehicle
Intelligent Key is within outside key antenna detection area *
Trunk open operation
Intelligent Key is within outside key antenna (trunk room) detection area*
Trunk cancel switch is ON
Key reminder functions operate (trunk)
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INFINITI M35 2007 Factory Service Manual INTELLIGENT KEY SYSTEM
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Key Reminder Function
Key reminder functions have the following 3 functions.
*:If the door closing impact shocks

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Key Reminder Function
Key reminder functions have the following 3 functions.
*:If the door closing impact shocks the door lock knob, or contacts against baggage with the door lock knob might activate the door locks
accidentally but unlock operation will be perform at these cases.
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
Intelligent Key is on the instrument panel, rear parcel shelf, or in the glove box. Also, this system
sometimes does not operate if the Intelligent Key is in the door pocket for the open door.
When the key reminder function is operated when the trunk is open/closed and the buzzers sound,
if the following operations are performed, the key reminder function is cleared and buzzer sounds
are stopped.
–Remote controller door lock button operation of Intelligent Key
–Remote controller door unlock button operation of Intelligent Key
–When the trunk is closed, the Intelligent Key is not inside the vehicle
–When any door is open
Selective Unlock Function
When an LOCK signal is sent from door request switch (driver side or passenger side), all doors will be locked.
When an UNLOCK signal is sent from door request switch (driver side or passenger side) once, driver's door
will be unlocked.
Then, if an UNLOCK signal is sent from door request switch (driver side and passenger side) again within 5
seconds, all other door will be unlocked.
Hazard and Buzzer Reminder Function
During lock, unlock, or trunk opening operation by each request switch, the hazard warning lamps and Intelli-
gent Key warning buzzer will flashes or honk as a reminder.
When doors are locked, unlocked or trunk open by each request switch, Intelligent Key unit honks Intelligent
Key warning buzzer as a reminder and sends hazard request signal to BCM via CAN communication line.
BCM flashes hazard warning lamps as a reminder.
Operating function of hazard and buzzer reminder
How to change hazard and buzzer reminder mode
With CONSULT-II
Key remainder function Operation condition Operation
Driver door close*Right after driver side door is closed under the following conditions
Door lock operation is performed
Driver side door is opened
Driver side door is in unlock stateAll doors unlock
Door is open or closedRight 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
Honk Intelligent Key warning
buzzer
Trunk is closedRight after trunk is closed under the following conditions
Intelligent Key is inside trunk room
all doors are closed
all doors are locked
Trunk open
Honk Intelligent Key warning
buzzer
Operation Hazard warning lamp flash Intelligent Key warning buzzer honk
Unlock Once Once
Lock Twice Twice
Trunk open — Fourth

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INFINITI M35 2007 Factory Service Manual BL-50
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Hazard and buzzer reminder can be changed using “HAZARD ANSWER BACK”, “ANSWER BACK WITH I-
KEY LOCK” and “ANSWER BACK WITH I-KEY

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INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Hazard and buzzer reminder can be changed using “HAZARD ANSWER BACK”, “ANSWER BACK WITH I-
KEY LOCK” and “ANSWER BACK WITH I-KEY UNLOCK” mode in “WORK SUPPORT”.Refer to BL-81,
"WORK SUPPORT" .
Auto Door Lock Function
When all doors are locked, ignition switch is in OFF position and key switch is OFF (Intelligent Key is not
inserted in key slot), doors are unlocked with door request switch
When Intelligent Key unit does not receive the following signals within 60 seconds, all doors are locked.
Door switch is ON (door is opened)
Door is locked
Ignition switch is ON (ignition switch is pressed)
Key switch is ON (Intelligent Key is inserted in key slot)
Auto door lock mode can be changed by “AUTO RELOCK TIMER” mode in “WORK SUPPORT”. Refer to BL-
81, "WORK SUPPORT" .
Room Lamp Operation
When the following conditions are met:
Condition of interior lamp switch is in DOOR position
Door switch OFF (all the doors are closed)
Intelligent Key system turns on interior lamp (for 30 seconds) by receiving UNLOCK signal from door request
switch. For detailed description, refer to LT- 2 6 9 , "
ROOM LAMP TIMER OPERATION" .
List of Operation Related Parts
Parts marked with × are the parts related to operation.
Door lock/trunk open function
Intelligent Key
Key slot
Remote keyless entry receiver
Door switch
Trunk room lamp switch
Door request switch (Driver, Passenger)
Trunk opener request switch
Door lock actuator
Trunk lid opener actuator
Inside key antenna
Outside key antenna (Driver, Passenger)
Outside key antenna (Trunk)
Intelligent Key warning buzzer
Intelligent Key unit
CAN communication system
BCM
Hazard warning lamp
Trunk lid opener cancel switch
Push-button ignition switch
Door lock/unlock function by request switch×××××××× ×××
Trunk open function by the trunk opener
request switch××××××××××××
Hazard and buzzer reminder function for door
lock/unlock operation×××××
Buzzer reminder for trunk open operation××××
Key reminder function×××× × × ××××××××
Selective unlock function by request switch
(Driver side)× ×××× ×××
Selective unlock function by request switch
(Passenger side)× ×××× ×××
Auto door lock function××××× ××× ×

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INFINITI M35 2007 Factory Service Manual INTELLIGENT KEY SYSTEM
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REMOTE KEYLESS ENTRY FUNCTIONS
The Intelligent Key has the same functions as the remote control entry system. Th

INTELLIGENT KEY SYSTEM
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REMOTE KEYLESS ENTRY FUNCTIONS
The Intelligent Key has the same functions as the remote control entry system. Therefore, it can be used in the
same manner as the remote controller by operating the door lock/unlock button and trunk open button.
System Diagram
Operation Description/Door Lock/Unlock Function
When door lock/unlock button of the Intelligent Key is pressed, lock signal or unlock signal is sent from
Intelligent Key to Intelligent Key unit via remote keyless entry receiver.
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 to BCM.
When BCM receives the door lock/unlock signal, it operates door lock actuator, flashes the hazard lamp
(lock: 1 time, unlock: 2 times) and horn chirp signal to IPDM E/R at the same time as a reminder.
IPDM E/R honks horn (lock: 1 time) as a reminder
Operation Description/Trunk Open Function
When trunk button of the Intelligent Key is pressed, the trunk open signal is sent from the Intelligent Key to
the Intelligent Key unit via remote keyless entry receiver.
Intelligent Key unit sends trunk open request signal to BCM via CAN communication line.
When BCM receives the trunk open request signal, it operates the trunk lid opener actuator and opens the
trunk.
Operation Condition
Operation Area
Operating Range
To ensure the Intelligent Key works effectively, use within 100 cm range of each doors, however the oper-
able range might be differ by surroundings.
Selective Unlock Function
When an LOCK signal is sent from Intelligent Key, all doors will be locked.
When an UNLOCK signal is sent from Intelligent Key once, driver's door will be unlocked.
Then, if an UNLOCK signal is sent from Intelligent Key again within 5 seconds, all other door will be unlocked.
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Remote controller operation Operation condition Operation
Lock
All doors closed All doors lock
Unlock
Intelligent Key is out of key slot All doors unlock
Trunk open
Press and hold the trunk open button for 0.5 second or more Trunk open

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