Infiniti FX35, FX50 (S51). Manual — part 474
INTELLIGENT KEY SYSTEM
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< SYSTEM DESCRIPTION >
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INTELLIGENT KEY SYSTEM : Component Description
INFOID:0000000005239489
DOOR LOCK FUNCTION
DOOR LOCK FUNCTION : System Diagram
INFOID:0000000005239490
DOOR LOCK FUNCTION : System Description
INFOID:0000000005239491
Only when pressing the request switch, is it possible to lock and unlock the door by carrying the Intelligent
Key.
OPERATION DESCRIPTION
• When the BCM detects that each door request switch is pressed, it activates the outside key antenna and
inside key antenna corresponding to the pressed door request switch and transmits the request signal to the
Intelligent Key. And then, checks 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
transmits the key ID signal to the BCM via remote keyless entry receiver.
• BCM receives the key ID signal and compares it with the registered key ID.
10. Back door lock assembly D122
11.
Back door opener request switch
D116
A.
View with luggage floor finisher front
removed
B.
View with back door finisher inner re-
moved
Item
Function
BCM
Controls the Intelligent Key system.
Door lock actuator
Output lock/unlock signal from BCM and locks/unlocks each door.
Door switch
Input door open/close condition to BCM.
Remote keyless entry receiver
Receives lock/unlock signal from the Intelligent Key, and then transmits to BCM.
Request switch
Input lock/unlock operation to BCM.
Intelligent Key
Transmits button operation to remote keyless entry receiver.
Outside key antenna
Detects if Intelligent Key is outside the vehicle.
Inside key antenna
Detects if Intelligent Key is inside the vehicle.
Unified meter and A/C amp.
• Receive buzzer signal from BCM via CAN communication line, and sounds the buzzer.
• Transmits vehicle speed signal to BCM via CAN communication line.
Combination meter
Display, buzzer (combination meter) and KEY warning lamp are installed to combination meter.
Intelligent Key warning buzzer
Warns the user of the lock/unlock condition and inappropriate operations with the buzzer sound.
JMKIA2274GB
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< SYSTEM DESCRIPTION >
INTELLIGENT KEY SYSTEM
• BCM lock/unlock each door (except back door) and fuel lid lock actuator and sounds Intelligent Key buzzer
warning (lock: 2 times, unlock: 1 time) at the same time as a reminder.
OPERATION CONDITION
If the following conditions are satisfied, door lock/unlock operation is performed if the request switch is oper-
ated.
*: 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
driver and passenger door handles (1) and the back door request
switch (2). However, this operating range depends on the ambient
conditions.
SELECTIVE UNLOCK FUNCTION
When a LOCK signal is sent from door request switch (driver side or passenger side), all doors and fuel lid are
locked.
When an UNLOCK signal is sent from door request switch (driver side or passenger side) once, driver's door
and fuel lid are unlocked.
Then, if an UNLOCK signal is sent from door request switch (driver side and passenger side) again within 60
seconds, all other doors are unlocked.
HAZARD AND BUZZER REMINDER FUNCTION
During lock and unlock operation by each request switch, the hazard warning lamps and Intelligent Key warn-
ing buzzer blink or honk as a reminder.
When doors are locked or unlocked by each request switch, BCM sounds Intelligent Key warning buzzer as a
reminder and blinks.
Operating Function of Hazard and Buzzer Reminder
How to Change Hazard and Buzzer Reminder Mode
SEC-25, "INTELLIGENT KEY : CONSULT-III Function (BCM - INTELLIGENT KEY)"
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AUTO DOOR LOCK FUNCTION
When all doors are locked, ignition switch is in the OFF position, and key switch is OFF (Intelligent Key is not
inserted in key slot), doors are unlocked with door request switch
When BCM does not receive the following signals within 60 seconds, all doors and fuel lid 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)
Each request switch operation
Operation condition
Lock operation
• All doors are closed
• Ignition switch is in the 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 *
JMKIA1954ZZ
Operation
Hazard warning lamp blinks
Intelligent Key warning buzzer sounds
Unlock
Once
Once
Lock
Twice
Twice
INTELLIGENT KEY SYSTEM
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< SYSTEM DESCRIPTION >
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Auto door lock mode can be changed in “AUTO LOCK SET” mode in “WORK SUPPORT”. Refer to
"INTELLIGENT KEY : CONSULT-III Function (BCM - INTELLIGENT KEY)"
INTERIOR ROOM LAMP CONTROL
Intelligent Key system turns on interior lamp by receiving UNLOCK signal from door request switch. For
detailed description, refer to
LIST OF OPERATION RELATED PARTS
Parts marked with
×
are the parts related to operation.
Door lock function
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Door lock/unlock function by request switch
×
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Hazard and buzzer reminder function for door lock/
unlock operation
×
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Key reminder function
×
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Selective unlock function by request switch
(Driver side)
×
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Selective unlock function by request switch
(Passenger side)
×
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Selective unlock function by request switch (back
door)
×
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Auto door lock function
×
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×
×
×
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×
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< SYSTEM DESCRIPTION >
INTELLIGENT KEY SYSTEM
DOOR LOCK FUNCTION : Component Parts Location
INFOID:0000000005239492
1.
BCM M118, M119, M120, M121,
M122, M123
2.
Combination meter M53
3.
Key slot M22
4.
IPDM E/R E5, E6
5.
Remote keyless entry receiver M104 6.
A/T shift selector (detention switch)
M137
JMKIA2606ZZ
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