2011 INFINITI QX56 door

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

DLK-32
< SYSTEM DESCRIPTION >
SYSTEM (AUTOMATIC BACK DOOR SYSTEM)
Open Function
When back door opener switch is pressed and automatic back door main switch in the OFF position, BCM
transmits the back door open request signal to automatic back door control unit via CAN communication, and
automatic back door control unit opens back door lock assembly.
Closure Function
When the back door is closed to the half-latch position, the motor drives to rotate the latch lever and pulls it in
from half latched to fully latched and automatically clos es the door. Then, reverse the closure motor to the
neutral position.
WARNING FUNCTION
The warning function is as follows and gives the user warning information and warnings using automatic back
door buzzer and hazard.
Buzzer Operation Condition
ANTI-PINCH FUNCTION
During auto operation, if an object is detected by encoder pulse in the door's path, a warning chime sounds
and the back door operates in the reverse direction to prevent pinching.
During auto close operation, if an object is detected by the touch sensors in the door's path, a warning chime
sounds and the back door operates in the open direction until it is fully open.
Operation Condition
Pattern Time Description
A 0.75 sec. Operation start announcement
Anti-pinch operation start announcement
B Pi--- 2.0 sec. During the closure operation, the touch
sensor detects any trapped foreign materi-
al and stops halfway
C Pi------ Back door fully closed or vehi-
cle is stoppedThe conditions are not satisfied in the fully
open position or during the operation, and
then the operation continues
D During open/close operation During operation announcement
JMKIA1862ZZ
JMKIA1863ZZ
Detection method Encoder pulse Touch sensor
Applicable operation Open/close operation Close operation
Operation when
any trapped for-
eign material is de-
tected Stop the vehicle
Buzzer sounds (pattern A)
and reverse operation  Buzzer sounds (pattern A) and the back door stops in
the fully-open position after reverse operation
 During closure (close) operation (at main switch OFF): Closure [open (neutral position return)] operation
Running the ve-
hicle No reverse operation (buzzer
sounds, pattern C)  The back door reverses a certain amount, and then it
reverses automatically to perform the auto close oper-
ation
 During closure (close) operation (at main switch ON):
Closure (open) operation
Revision: 2010 May2011 QX56

SYSTEM (AUTOMATIC BACK DOOR SYSTEM)
DLK-33
< SYSTEM DESCRIPTION >
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INTERMITTENT CLUTCH FUNCTION
If the main switch is turned to OFF during auto operation, the back door may be closed suddenly because the
operation is interrupted immediately when the operati on cannot be continued because of the detection of a
system malfunction. Therefore, operat e the clutch intermittently to stabilize the back door behavior and ensure
safety.
AUTOMATIC BACK DOOR OPEN/CLOSE OPERATION CONDITION
*: If the registered Intelligent Key is used, the operation can be performed even if the back door is in the LOCK position
CONTROL IF NOT WITHIN THE OPERAT ION CONDITIONS DURING THE OPERATION
If the back door is not within the operation conditions dur ing the operation, the automatic back door control unit
performs the control as follows.
Non-reverse area  Just after starting the mo-
tor operation
 Full range of closure oper- ation
Driving  Back door open operation
 Closure [open (return the latch to the neutral position)]
Switch operation during reverse op-
eration Receive
Number of allowable reverse opera-
tions Perform the intermittent clutch function after 2 reverse operations regardless of the oper-
ation direction
Detection method Encoder pulse Touch sensor
Automatic back door switch Intelligent Key
Automat-
ic back
door close switch Back door opener
switch
Operating direction Fully closed → Open Fully open
→ Closed Fully
closed →
Open Fully open
→ Closed Fully open
→ Closed Fully closed
→ Open
Main switch — — — — ON ON
Ignition position ON ACC/
LOCK ———ON
ACC/
LOCK
Shift selector lever P position — — — — — P position —
Vehicle speed 0 km/h
Back door lock condition — — — — — Unlock*
Touch sensor Normal
Power supply
(Automatic power back
door control unit) Approx. 11 V or more
Item
(Condition) Back door condition
Main Switch (ON → OFF) Motor: OFF
 Clutch: OFF (Intermittent clutch function)
Vehicle stop condition (open operation)
 IGN ON and shift P position →IGN ON and
other than P position
 IGN OFF and shift N position → IGN ON and
N position The operation is continued
Operation condition release during the opera-
tion start announcement condition Automatic back door function does not operate
Revision: 2010 May2011 QX56

DLK-34
< SYSTEM DESCRIPTION >
SYSTEM (AUTOMATIC BACK DOOR SYSTEM)
TIME CHART FOR AUTOMATIC POWER BACK DOOR SYSTEM
Fully Closed to Fully Open Operation
When operating the automatic back door switch, automatic back door opener switch and Intelligent Key in the
fully closed position, the system operates as follows.
Vehicle speed
(0 km/h → More than 0 km/h) Open operation
Operation stop and intermittent clutch function [Back
door fully closed or buzzer sounds until the vehicle
stops (pattern C)]
Close operation The operation is continued [buzzer sounds (pattern C)
until back door fully closed]
Touch sensor
(Normal → Open) Open operation
The operation is continued (If the pinch is detected af-
ter that, the system switches to the intermittent clutch
function)
Close operation Intermittent clutch function
Closure (close) opera-
tion Closure (open) operation and buzzer sounds (pattern
B)
Closure [open (return
the latch to the neutral
position)] The operation is continued
Operation time
(More than approx. 30 sec.) Intermittent clutch function
Back door opener switch
(OFF → ON) Open/close operation The operation is continued
Closure (close) opera-
tion
Closure (open) operation and back door open
Closure [open (return
the latch to the neutral
position)] Back door open
Malfunction detected
(IGN circuit, half latch switch and back door
state) Intermittent clutch function
Item
(Condition) Back door condition
Revision: 2010 May2011 QX56

SYSTEM (AUTOMATIC BACK DOOR SYSTEM)
DLK-35
< SYSTEM DESCRIPTION >
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1. Operates the buzzer and hazard after the operation enable conditions are established
2. The back door closure motor performs the open operat ion after the buzzer (pattern A) stops sounding
3. Stops the back door closure motor open operation after turning the open switch to ON Then, operate the automatic back door motor and clutch to perform the back door open operation
4. The back door closure motor performs the close operation after turning the half latch switch to ON
5. Stop the back door closure motor close operation and return the latch to the neutral position after turning the close switch to OFF
NOTE:
In the operation of steps 3 and 4, the inputs of half la tch switch, open switch, and close switch may be different
according to the reaction force of the back door weather-strip. Refer to the area encircled by a broken line in
the Time chart (Fully closed to fully open operation)
Fully Open to Fully Closed Operation
When operating the automatic back door switch, automatic back door close switch and Intelligent Key, the
automatic back door system operates as follows.
JMKIA5203GB
Revision: 2010 May2011 QX56