lock INFINITI QX56 2011 Factory Service Manual

DLK-22
< SYSTEM DESCRIPTION >
SYSTEM (INTELLIGENT KEY SYSTEM)
 The back door open function can open the back door by pressing the back door opener switch while carryingthe Intelligent Key and all doors (except back door) are locked.
 The back door open function enables the back door to be opened by pressing back door opener switch after
BCM transmits UNLOCK signal to each door.Refer to DLK-31, "
System Description".
BACK DOOR OPEN
While back door open in the permitted state, back door opens when back door opener switch is pressed after
back door request switch is operated. Back door open also can be operated according to the following proce-
dure.
 When the BCM detects that back door opener switch is pressed, it activates the outside key antenna (back
door) and inside key antenna and transmits the request signal to the Intelligent Key. And then, check that the
Intelligent Key is near the back door.
 If the Intelligent Key is within the outside key ant enna 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.
 If the verification result is OK, BCM transmits the back door open request signal to automatic back door con- trol unit via CAN communication.
 Automatic back door control unit transmits back door open request signal to back door lock assembly and
back door is open.
 When the back door is open, automatic back door sys tem performs waiting operation for next back door
close operation.
The operation of then back door open is the same as the automatic back door system, refer to DLK-31,
"System Description".
OPERATION CONDITION
If the following conditions are not satisfied, ba ck door open operation is not performed even if the back door
opener switch is operated.
OUTSIDE KEY ANTENNA DETECTION AREA
The outside key antenna detection area of back door open function
is in the range of approximately 80 cm (31.50 in) surrounding the
outside key antenna (back door) (1). However, this operating range
depends on the ambient conditions.
LIST OF OPERATION RELATED PARTS
Parts marked with × are the parts related to operation.
Back door opener switch operation Operation condition
Back door open  Vehicle speed is less than 5 km/h (3 MPH)
 Intelligent Key is within outside key antenna (back door) de-
tection area
 Back door is closed
 Panic alarm is not activated
JMKIA5225ZZ
Revision: 2010 May2011 QX56

SYSTEM (INTELLIGENT KEY SYSTEM)
DLK-23
< SYSTEM DESCRIPTION >
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REMOTE KEYLESS ENTRY FUNCTION
REMOTE KEYLESS ENTRY F UNCTION : System DiagramINFOID:0000000006225845
REMOTE KEYLESS ENTRY FUNCT ION : System DescriptionINFOID:0000000006225846
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.
OPERATION
Remote keyless entry system controls operation of the following items.
 Door lock/unlock function
 Selective unlock function
 Auto door lock function
 Hazard and horn reminder function
 Automatic back door open/close function
OPERATION AREA
To check that the Intelligent Key works normally, use within 1 m (3 ft) range of each doors, however the opera-
ble range may differ according to surroundings.
DOOR LOCK/UNLOCK FUNCTION
 When door lock/unlock button of the Intelligent Key is pr essed, lock signal or unlock signal transmitted from
Intelligent Key to BCM via remote keyless entry receiver.
 When BCM receives the door lock/unlock signal, it operates all door lock actuators and fuel lid lock actuator,
blinks the hazard lamp (lock: 2 time, unlock: 1 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.
Function
Intelligent Key
Remote keyless entry receiver Back door opener switch
Back door lock assembly Inside key antenna
Outside key antenna (back door) CAN communication system BCM
Automatic back door control module
Back door open function ×××××××××
JMKIA5435GB
Revision: 2010 May2011 QX56

DLK-24
< SYSTEM DESCRIPTION >
SYSTEM (INTELLIGENT KEY SYSTEM)
OPERATION CONDITION
If the following condition are satisfied, remote keyless entry operation is performed when the Intelligent Key is
operated.
SELECTIVE UNLOCK FUNCTION
 When an LOCK signal is transmitted from Intelligent Key, all doors and fuel filler lid are locked.
 When an UNLOCK signal is transmitted from Intelligent Key once, driver side door and fuel filler lid are
unlocked.
 Then, if an UNLOCK signal is transmitted from Inte lligent Key again within 60 seconds, all other doors
(except for back door) are unlocked.
How to change selective unlock operation mode.
Selective unlock operation mode can be changed using CONSULT-III.
Refer to DLK-39, "
DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)".
AUTO DOOR LOCK FUNCTION
After door is unlocked by Intelligent Key button operati on and if 60 seconds or more passes without performing
the following operation, all doors are locked. Howe ver, operation check function does not activate.
How to change auto door lock operation mode.
Auto door lock mode can be changed using CONSULT-III.
Refer to DLK-41, "
INTELLIGENT KEY : CONSULT-III Function (BCM - INTELLIGENT KEY)".
HAZARD AND HORN REMINDER FUNCTION
When doors are locked or unlocked by Intelligent Key, BCM blinks hazard warning lamps as a reminder.
The hazard and horn reminder has a horn chirp mode (C mode) and a non-horn chirp mode (S mode).
Operating Function of Hazard and Horn Reminder
Hazard and horn reminder does not operate in the following conditions.
 Ignition switch position is ON.
 Door is open (only lock operation)
How to Change Hazard and Horn Reminder Mode
With CONSULT-III
Hazard and horn reminder operation mode can be changed using CONSULT-III.
Refer to DLK-41, "
INTELLIGENT KEY : CONSULT-III Function (BCM - INTELLIGENT KEY)".
Without CONSULT-III
Remote controller operation Operation condition
Lock  Panic alarm is not activated
 P position warning is not activated
Unlock Panic alarm is not activated
Operating condition  Door switch is ON
(door is open)
Door is locked
 Push switch is pressed
C mode S mode
Intelligent Key operation Lock Unlock Lock Unlock
Hazard warning lamp blinks Twice Once Twice —
Horn sound Once — — —
Revision: 2010 May2011 QX56

SYSTEM (INTELLIGENT KEY SYSTEM)
DLK-25
< SYSTEM DESCRIPTION >
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When LOCK and UNLOCK signals are sent from the Intelligent Key for more than 2 seconds at the same time,
the hazard and horn reminder mode is changed and hazard warning lamp blinks and horn sounds as per the
following items:
AUTOMATIC BACK DOOR OPEN/CLOSE FUNCTION
When back door button of Intelligent Key is pressed fo r 0.4 second or more, back door open automatically for
detailed description, refer to DLK-31, "
System Description".
LIST OF OPERATION RELATED PARTS
Parts marked with × are the parts related to operation.
KEY REMINDER FUNCTION
KEY REMINDER FUNCTION : System DiagramINFOID:0000000006225847
JMKIA2755GB
Function
Intelligent Key
Door switch
Door lock actuator
Fuel lid lock actuator
Push-button ignition switch
CAN communication system BCM
IPDM E/R
Horn
Combination meter
Hazard warning lamp
Automatic back door control module
Back door lock assembly
Door lock/unlock function ×××× ×
Selective unlock function ×××× ×
Auto door lock function ××××× ×
Hazard and horn reminder function ××××××
Automatic back door open/close function ×××××
JMKIA5084GB
Revision: 2010 May2011 QX56

DLK-26
< SYSTEM DESCRIPTION >
SYSTEM (INTELLIGENT KEY SYSTEM)
KEY REMINDER FUNCTION : System Description
INFOID:0000000006225848
Key reminder is the function that prevents the key from being left in the vehicle.
Key reminder has 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 is perform in 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 does not operate when the Intel-
ligent 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 for the open door.
WELCOME LIGHT FUNCTION
WELCOME LIGHT FUNCTION : System DiagramINFOID:0000000006225849
WELCOME LIGHT FUNCTION : System DescriptionINFOID:0000000006225850
The welcome light function operates as per the following. When the Intelligent Key is within the outside key
antenna detection area, the BCM turns on interior room lamp
* and operates heart beat operation of the push-
button ignition switch.
*: Settings for map lamp, foot lamp, personal lamp, and puddle lamp are available.
OPERATION DESCRIPTION
Key remainder func-
tion Operation condition Operation
Driver door closed* Right after driver side door is closed under the following conditions
 Door lock operation is performed
 Driver side door is open
 Driver side door is in lock state All doors (except back door)
and fuel filler lid unlock
Door is open or closed Right after all doors are closed under the following conditions
 Intelligent Key is inside the vehicle
 Any door is open
 All doors (except back door) are locked by door lock and unlock switch
or door lock knob  All doors (except back
door) and fuel filler lid un-
lock
 Honk Intelligent Key warn- ing buzzer
Back door is closed Right after back door is closed under the following conditions
 Intelligent Key is inside vehicle
 All doors (except for back door) are closed
 All doors (except for back door) are locked  All doors (except for back
door) and fuel filler lid un-
lock
 Back door can open with back door opener switch
 Honk Intelligent Key warn-
ing buzzer
JMKIA5072GB
Revision: 2010 May2011 QX56

SYSTEM (INTELLIGENT KEY SYSTEM)
DLK-27
< SYSTEM DESCRIPTION >
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 When the BCM detects that the Intelligent Key is within the outside key antenna detection area. BCM trans-
mits the request signal to the Intelligent Key and check it is near the door.
 Intelligent Key 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.
 BCM illuminates lamps that are set, when key ID verification is OK.
TIMER FUNCTION
BCM can operate welcome light function, using the timer function, for 9 days, after key switch is turned OFF.
The timer function resets when the engine is started
*.Operating period of timer function may differ depending
on battery size.
*: Timer function does not stop if another Intelligent Key that has a different key ID is detected within the inte-
rior antenna detection area, when starting the engine.
OPERATION CONDITION
If the following condition are satisfi ed, welcome light function is operated.
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, passenger door handles (1) and back door handle (2). How-
ever, this operating range depends on the ambient conditions.
WELCOME LIGHT FUNCTION SETTING
Welcome light function operation mode can be changed using CONSULT-III
With CONSULT-III
Refer to DLK-41, "
INTELLIGENT KEY : CONSULT-III F unction (BCM - INTELLIGENT KEY)".
Without CONSULT-III
The welcome light function ON/OFF can be s witched by performing the following operation.
1. Turn ignition switch: OFF →ON
2. Press and hold the driver side door request switch for 5 seconds or more within 20 seconds after turning the ignition switch ON.
3. The switching is complete when combination meter buzzer sounds.
WARNING FUNCTION
WARNING FUNCTION : System DescriptionINFOID:0000000006225851
OPERATION DESCRIPTION
The warning function are as per the following items and are given to the user as warning information and
warnings using combinations of Intelligent Key warning buzzer, combination meter buzzer, KEY warning lamp
and information display in combination meter.
 Intelligent Key system malfunction
 OFF position warning
 P position warning
 ACC warning
Function Operation condition
Welcome light function  All door are closed
 All doors is locked
 Ignition switch: OFF position
 Shift position: P position
 Intelligent Key is outside the vehicle
 Timer function is activated
JMKIA5224ZZ
Revision: 2010 May2011 QX56

DLK-28
< SYSTEM DESCRIPTION >
SYSTEM (INTELLIGENT KEY SYSTEM)
 Take away warning
 Door lock operation warning
 Engine start information
 Steering lock information
 Intelligent Key low battery warning
 Key ID warning
 Key ID verification information
OPERATION CONDITION
Once the following condition from below is established, alert or warning is executed.
WARNING METHOD
The following table shows the alarm or warning methods with chime.
Warning/Information functions Operation procedure
Intelligent Key system malfunction When a malfun ction is detected on BCM, “KEY” warning lamp illuminates
OFF position warning For internal
 Ignition switch: ACC position
 Door switch (driver side
): ON (Door is open)
For external OFF position warning (For internal) is in active mode, driver side door is
closed
NOTE:
OFF position (For external) active only when each of the sequence occurs
as below: P position warning
→ ACC warning → OFF position warning (For
internal) → OFF position warning (For internal)
P position warning For internal
 Shift position: Except P position
 Engine is running to stopped (Ignition switch is ON to OFF)
For external Warning is activated when driver door is closed from the open position
while the P position warning (for inside vehicle) is ON
ACC warning  When P position warning is in active mode, shift position changes P po-
sition
 Ignition switch: ACC position
Ta k e a w a y w a r n i n g Door is open to close
 Ignition switch: Except LOCK position
 Door switch: ON to OFF (Door is open to close)
 Intelligent Key cannot be detected inside the vehicle
Door is open  Door switch: ON (Door is open)
 Key ID verification every 5 seconds when registered Intelligent Key can-
not be detected inside the vehicle
Push-button ignition
switch operation  Ignition switch: Except LOCK position
 Press push-button ignition switch
 Intelligent Key cannot be detected inside the vehicle
Door lock operation warning When door lock operation is requested while door lock operating condition
of door request switch or Intelligent Key are not satisfied
Engine start information Ignition switch is ON po-
sition
 Ignition switch: ON position
 Shift position: P position*
 Engine is stopped
Ignition switch is except
ON position  Ignition switch: Except ON position
 Shift position: P position*
 Intelligent Key is inserted in key slot or Intelligent Key can be detected
inside the vehicle
Steering lock information When steering lock cannot be released after ignition switch is turned ON
Intelligent Key low battery warning When Intelligent Key is low battery, BCM is detected after ignition switch is
turned ON
Key ID warning When registered Intelligent Key cannot be detected inside the vehicle after
ignition switch is turned ON
Key ID verification information  When registered Intelligent Key cannot be detected inside the vehicle
 Intelligent Key battery is discharged
 When NATS antenna amp cannot be detected NATS ID
Revision: 2010 May2011 QX56

SYSTEM (INTELLIGENT KEY SYSTEM)
DLK-29
< SYSTEM DESCRIPTION >
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Warning/Information functions “KEY”
warning
lamp Information display
(combination meter) Warning chime
Combination
meter buzzer Intelligent Key
warning buzzer
Intelligent Key system malfunction Indicate — — —
OFF position
warning For internal — — Activate —
For external — — — Activate
P position
warning For internal
— Activate —
For external —Active
ACC warning — Activate —
Ta k e a w a y
warning Door is open to
close
— Activate Activate
Door is open ——
Push button-igni-
tion switch opera-
tion Activate —
Door lock op-
eration warn-
ing Request switch
operation
—— —Activate
Intelligent Key — — — Activate
Key ID warning — — —
Engine start information — — —
Steering lock information — — —
JMKIA0037GB
JMKIA0047GB
JMKIA4906ZZ
JMKIA4906ZZ
JMKIA0032GB
JMKIA0033GB
Revision: 2010 May2011 QX56

DLK-30
< SYSTEM DESCRIPTION >
SYSTEM (INTELLIGENT KEY SYSTEM)
LIST OF OPERATION RELATED PARTS
Parts marked with × are the parts related to operation.
Intelligent Key low battery warning — — —
Key ID verification information — — — Warning/Information functions
“KEY”
warning lamp Information display
(combination meter) Warning chime
Combination
meter buzzer Intelligent Key
warning buzzer
JMKIA3049ZZ
JMKIA4907ZZ
Warning function
Intelligent Key
Ignition switch
Door switch
Door request switch Inside key antenna
Outside key antenna
Intelligent Key warning buzzer Combination meter buzzer
CAN communication system BCM
Information display
“KEY” warning lamp
Intelligent Key system malfunction ×× ×
OFF position warning For internal
××××
For external ×××
P position warning × ×××××
ACC warning ×××××
Take away warning Door is open or close
× × × ××××××
Door is open × × × ××××
Push-button ignition switch
operation ×× × ×××××
Door lock operation warning × ××××× ×
Key ID warning × × ××××
Engine start information Ignition switch is ON position
×× × ×××
Ignition switch is except ON
position ×× × ×××
Steering lock information ××××
Intelligent Key low battery warning × × ××××
Key ID verification information ×××××
Revision: 2010 May2011 QX56

SYSTEM (AUTOMATIC BACK DOOR SYSTEM)
DLK-31
< SYSTEM DESCRIPTION >
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SYSTEM (AUTOMATIC BACK DOOR SYSTEM)
System DiagramINFOID:0000000006225852
System DescriptionINFOID:0000000006225853
The automatic back door system performs the automat ic open/close operation of the back door by operating
the automatic back door switch, the automatic back door close switch, the back door opener switch, and Intel-
ligent Key.
AUTOMATIC BACK DOOR OPEN/CLOSE FUNCTION
 In the case of the back door fully closed, operate t he automatic back door switch, Intelligent Key or back
door opener switch with the back door unlock. The back door closure motor releases the latch, then the
automatic back door motor opens the back door to the fu lly open position. Reverse the closure motor to the
neutral position simultaneously.
 In the case of the back door fully open, operate the aut omatic back door switch, Intelligent Key or automatic
back door close switch. The automatic back door motor cl oses the back door to the half-latch position, then
the back door closure motor to the full latch position. Then, reverse the closure motor to the neutral position.
BACK DOOR AUTO CLOSURE FUNCTION
JMKIA5198GB
Revision: 2010 May2011 QX56