2007 INFINITI QX56 key

BL-110
< SERVICE INFORMATION >
FRONT DOOR LOCK
FRONT DOOR LOCK
Component StructureINFOID:0000000003532979
Removal and InstallationINFOID:0000000003532980
REMOVAL
1. Remove the front door window regulator. Refer to GW-59, "Removal and Installation".
2. Remove the front door window rear glass run.
3. Remove the door side grommet, and the bolt (TORX T30) from
the grommet hole.
1. Grommet 2. Front door striker 3. Door lock assembly
4. Outside handle cable 5. Inside handle assembly 6. Inside handle cable
7. Door lock cable 8. Key cylinder rod (Driver side only) 9. Key cylinder
10. Outside handle bracket 11. Front gasket 12. Outside handle
13. Door key cylinder assembly (Driver
side) Outside handle escutcheon
(Passenger side)14. Rear gasket
WIIA0891E
PIIA3553E

FRONT DOOR LOCK
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4. While pulling the outside handle, remove the door key cylinder
assembly or escutcheon.
5. Separate the key cylinder rod from the door key cylinder assembly (if equipped).
6. While pulling the outside handle, slide it toward rear of vehicle to
remove.
7. Remove the front and rear gaskets.
8. Remove the TORX bolts (T30), and the door lock assembly.
PIIA3554E
LIIA0532E
PIIA3557E
PIIA1090E

BL-112
< SERVICE INFORMATION >
FRONT DOOR LOCK
9. While pulling the outside handle bracket, slide it toward the rear
of vehicle to remove it and the door lock assembly.
10. Disconnect the door lock actuator electrical connector.
11. Separate the outside handle cable connection from the outside
handle bracket.
INSTALLATION
Installation in the reverse order of removal.
CAUTION:
To install each rod, be sure to rotate the rod holder until a click is felt.
Disassembly and AssemblyINFOID:0000000003532981
DOOR KEY CYLINDER ASSEMBLY
Remove the key cylinder escutcheon pawl and remove the door key cylinder.
PIIA3558E
PIIA5059E
PIIA4136E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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• Since only IVIS (NATS) ignition keys, whose IDs have been registered into the ECM and BCM, allow the
engine to run, operation of a stolen vehicle without a IVIS (NATS) registered key is prevented by IVIS
(NATS).
IVIS (NATS) will immobilize the engine if someone tries to start it without the registered key of IVIS (NATS).
• All of the originally supplied ignition key IDs have been IVIS (NATS) registered.
If requested by the vehicle owner, a maximum of five key IDs can be registered into the IVIS (NATS) compo-
nents.
• The security indicator blinks when the ignition switch is in OFF or ACC position. IVIS (NATS) warns outsiders
that the vehicle is equipped with the anti-theft system.
• When IVIS (NATS) detects a malfunction, the security indicator lamp lights up while ignition key is in the ON
position.
• IVIS (NATS) trouble diagnoses, system initialization and additional registration of other IVIS (NATS) ignition
key IDs must be carried out using CONSULT-II hardware and CONSULT-II IVIS (NATS) software.
When IVIS (NATS) initialization has been completed, the ID of the inserted ignition key is automatically IVIS
(NATS) registered. Then, if necessary, additional registration of other IVIS (NATS) ignition key IDs can be
carried out.
Regarding the procedures of IVIS (NATS) initialization and IVIS (NATS) ignition key ID registration, refer to
CONSULT-II Operation Manual NATS-IVIS/NVIS.
•When servicing a malfunction of the IVIS (NATS) (indicated by lighting up of Security Indicator
Lamp) or registering another IVIS (NATS) ignition key ID, it may be necessary to re-register original
key identification. Therefore, be sure to receive ALL KEYS from vehicle owner.
System CompositionINFOID:0000000003532988
The immobilizer function of the IVIS (NATS) consists of the following:
• NATS ignition key
• NATS antenna amp. located in the ignition key cylinder
• Body control module (BCM)
• Engine control module (ECM)
• Security indicator
NOTE:
The communication between ECM and BCM uses the CAN communication system.
ECM Re-communicating FunctionINFOID:0000000003532989
The following procedure can automatically perform re-communication of ECM and BCM, but only when the
ECM has been replaced with a new one which has never been energized on-board.
(In this step, initialization procedure by CONSULT-II is not necessary)
NOTE:
•When registering new key IDs or replacing the ECM other than brand new, refer to CONSULT-II Oper-
ation Manual NATS-IVIS/NVIS.
•If multiple keys are attached to the key holder, separate them before work.
•Distinguish keys with unregistered key ID from those with registered ID.
PIIA1121E

BL-118
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
1. Install ECM.
2. Using a registered key (*1), turn ignition switch to ON.
*1: To perform this step, use the key that has been used before performing ECM replacement.
3. Maintain ignition switch in ON position for at least 5 seconds.
4. Turn ignition switch to OFF.
5. Start engine.
If engine can be started, procedure is completed.
If engine cannot be started, refer to CONSULT-II Operation Manual NATS-IVIS/NVIS and initialize control
unit.

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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8. Perform each diagnostic test mode according to each service
procedure.
For further information, see the CONSULT-II Operation Manual
NATS-IVIS/NVIS.
CONSULT-II DIAGNOSTIC TEST MODE FUNCTION
NOTE:
• When any initialization is performed, all IDs previously registered will be erased and all NATS ignition keys
must be registered again.
• The engine cannot be started with an unregistered key. In this case, the system will show “DIFFERENCE OF
KEY” or “LOCK MODE” as a self-diagnostic result on the CONSULT-II screen.
• In rare case, “CHAIN OF ECM-IMMU” might be stored as a self-diagnostic result during key registration pro-
cedure, even if the system is not malfunctioning.
HOW TO READ SELF-DIAGNOSTIC RESULTS
IVIS (NATS) SELF-DIAGNOSTIC RESULTS ITEM CHART
SEL150X
CONSULT-II DIAGNOSTIC TEST
MODEDescription
C/U INITIALIZATIONWhen replacing any of the following components, C/U initialization and re-registration of all
NATS ignition keys are necessary.
[(NATS ignition key/ BCM/ ECM]
SELF-DIAG RESULTSDetected items (screen terms) are as shown in the chart.
Refer to "IVIS (NATS) SELF-DIAGNOSTIC RESULTS ITEM CHART".
PIIA1124E

BL-122
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Detected items
[IVIS (NATS) program card screen
terms]P No. Code
(Self-diagnostic
result of “EN-
GINE”)Malfunction is detected when.....Reference
page
CHAIN OF ECM-IMMU
[P1612]NATS MAL-
FUNCTION
P1612Communication impossible between ECM and BCM
In rare case, “CHAIN OF ECM-IMMU” might be stored
during key registration procedure, even if the system is not
malfunctioning.Refer to
BL-125
.
DIFFERENCE OF KEY
[P1615]NATS MAL-
FUNCTION
P1615BCM can receive the key ID signal but the result of ID ver-
ification between key ID and BCM is NG.Refer to
BL-126
.
CHAIN OF IMMU-KEY
[P1614]NATS MAL-
FUNCTION
P1614BCM cannot receive the key ID signal.Refer to
BL-129
.
ID DISCORD, IMM-ECM
[P1611]NATS MAL-
FUNCTION
P1611The result of ID verification between BCM and ECM is NG.
System initialization is required.Refer to
BL-127
.
LOCK MODE
[P1610]NATS MAL-
FUNCTION
P1610When the starting operation is carried out five or more
times consecutively under the following conditions, IVIS
(NATS) will shift the mode to one which prevents the en-
gine from being started.
• Unregistered ignition key is used.
• BCM or ECM malfunctioning.Refer to
BL-128
.
DON'T ERASE BEFORE CHECK-
ING ENG DIAG—All engine trouble codes except IVIS (NATS) trouble code
has been detected in ECM.Refer to
BL-123
.

BL-124
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Self-diagnosis related item
*: When IVIS (NATS) detects a malfunction, the security indicator lights up while ignition key is in the “ON” position.
SYMPTOM MATRIX CHART 2
SymptomDisplayed “SELF-DIAG
RESULTS” on CON-
SULT-II screen.Diagnostic Procedure
(Reference page)System
(Malfunctioning part or
mode)Reference Part No. Of Il-
lustration On System Di-
agram
• Security indicator light-
ing up*
• Engine cannot be
startedCHAIN OF ECM-IMMU
[P1612]PROCEDURE 1
(BL-125
)In rare case, “CHAIN OF
ECM-IMMU” might be
stored during key regis-
tration procedure, even if
the system is not mal-
functioning.—
Open circuit in battery
voltage line of BCM cir-
cuitC1
Open circuit in ignition
line of BCM circuitC2
Open circuit in ground
line of BCM circuitC3
Open or short circuit be-
tween BCM and ECM
communication lineC4
ECM B
BCM A
DIFFERENCE OF KEY
[P1615]PROCEDURE 2
(BL-126
)Unregistered key D
BCM A
CHAIN OF IMMU-KEY
[P1614]PROCEDURE 5
(BL-129
)Malfunction of key ID
chipE5
Communication line be-
tween ANT/ AMP and
BCM:
Open circuit or short cir-
cuit of battery voltage
line or ground lineE1
E2
Open circuit in power
source line of ANT/ AMP
circuitE3
Open circuit in ground
line of ANT/ AMP circuitE4
NATS antenna amp. E6
BCM A
ID DISCORD, IMM-ECM
[P1611]PROCEDURE 3
(BL-127
)System initialization has
not yet been completed.F
ECM B
LOCK MODE
[P1610]PROCEDURE 4
(BL-128
)LOCK MODE D
Security indicator lighting
up*DON'T ERASE BEFORE
CHECKING ENG DIAGWORK FLOW
(BL-123
)Engine trouble data and
IVIS (NATS) trouble data
have been detected in
ECM—