2008 INFINITI QX56 Factory Service Manual

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Page 801 of 4083

INFINITI QX56 2008 Factory Service Manual DLK-8
< BASIC INSPECTION >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS AND REPAIR WORKFLOW
The Diagnostic Procedure described based on open circuit inspection. A short circuit inspection is also
required f

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INFINITI QX56 2008 Factory Service Manual INSPECTION AND ADJUSTMENTDLK-9
< BASIC INSPECTION > [WITH INTELLIGENT KEY SYSTEM]
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INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REMOVI NG BATTERY NEGATIVE TERMINA

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INFINITI QX56 2008 Factory Service Manual DLK-10
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK FUNCTION
FUNCTION DIAGNOSIS
DOOR LOCK FUNCTION
DOOR LOCK AND UNLOCK SWITCH
DOOR LOCK AND UNLOCK SWITCH : System DiagramINFOID:00000

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INFINITI QX56 2008 Factory Service Manual DOOR LOCK FUNCTIONDLK-11
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DOOR LOCK AND UNLOCK SWITCH : Component Parts LocationINFOID:0000000001538908
DOOR LOCK

Page 805 of 4083

INFINITI QX56 2008 Factory Service Manual DLK-12
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK FUNCTION
DOOR REQUEST SWITCH
DOOR REQUEST SWITCH : System DiagramINFOID:0000000001538910
DOOR REQUEST SWITCH : System DescriptionIN

DLK-12
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK FUNCTION
DOOR REQUEST SWITCH
DOOR REQUEST SWITCH : System DiagramINFOID:0000000001538910
DOOR REQUEST SWITCH : System DescriptionINFOID:0000000001538911
Only when pressing the request switch, it is possible
to lock and unlock the door by carrying the Intelligent
Key.
• The Intelligent Key system is a system that makes it possible to lock and unlock the door locks (door lock/
unlock function) by carrying the Intelligent Key, which operates based on the results of electronic ID verifica-
tion using two-way communications between the Intelligent Key and the vehicle (BCM).
CAUTION:
The driver should always carry the Intelligent Key
• 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 function).
• When a door lock is locked or unlocked with request switch or remote controller button operation, the hazard
lamps flash and the Intelligent Key warning buzzer or horn sounds (Hazard and buzzer/horn reminder func-
tion).
• 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 is possible to perform a diagnosis on the system and register an Intelligent Key with the CONSULT-III.
OPERATION DESCRIPTION/DOOR LOCK/UNLOCK
• When the BCM detects that each door request switch is pressed, it starts the outside key antenna and inside
key antenna corresponding to the pressed door request swit ch and transmits the request signal to the Intelli-
gent Key. And then, check that t he Intelligent Key is near the 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.
• BCM sends the door lock/unlock signal and sounds Intelli gent Key buzzer warning (lock: 2 times, unlock: 1
time) at the same time as a reminder.
OPERATION CONDITION
If the following conditions are not satisfied, door lock/unlock operation is not performed even if the request
switch is operated.
Door switch Transmits door open/close condition to BCM.
Passenger select unlock relay Enables or disables the unlocking of rear doors when this Intelligent Key option is selected. Item
Function
ALKIA0704GB
Revision: March 2010 2008 QX56

Page 806 of 4083

INFINITI QX56 2008 Factory Service Manual DOOR LOCK FUNCTIONDLK-13
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*: Even with a registered Intelligent Key remaining inside the vehicle, door locks can b

DOOR LOCK FUNCTIONDLK-13
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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
driver and passenger door handles (1).
OUTSIDE KEY ANTENNA DETECTION AREA
The outside key antenna detection area of back door lock/unlock
function is in the range of approximately 80 cm (31.50 in) surround-
ing the back door handle (1).
SELECTIVE UNLOCK FUNCTION
When a 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 doors will be unlocked.
HAZARD AND BUZZER REMINDER FUNCTION
During lock or unlock operation by each request switch, the hazard warning lamps and Intelligent Key warning
buzzer will blink or honk as a reminder.
When doors are locked, unlocked by each request switch, IPDM E/R honks Intelligent Key warning buzzer as
a reminder and transmits hazard request signal to BCM via CAN communication line.
BCM flashes hazard warning lamps as a reminder.
Operating function of hazard warning lamps and buzzer reminder
How to change hazard and buzzer reminder mode
Refer to DLK-51, "
INTELLIGENT KEY : CONSULT-III F unction (BCM - INTELLIGENT KEY)".
AUTO DOOR LOCK FUNCTION
Each request switch operation Operation condition
Lock operation • All doors are closed
• Ignition switch is in OFF position
• 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 *
ALKIA0582ZZ
ALKIA0581ZZ
Operation
Hazard warning lamps flash Intelligent Key warning buzzer sounds
Unlock OnceOnce
Lock Twice Twice
Back door open —Four times
Revision: March 2010 2008 QX56

Page 807 of 4083

INFINITI QX56 2008 Factory Service Manual DLK-14
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK FUNCTION
When all doors are locked, ignition switch is in OFF
position and key switch is OFF, doors are unlocked with
door request

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INFINITI QX56 2008 Factory Service Manual DOOR LOCK FUNCTIONDLK-15
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DOOR REQUEST SWITCH : Component Parts LocationINFOID:0000000001538912
ALKIA0965ZZ
Revisi

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