2005 INFINITI QX4 Factory Service Manual

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INFINITI QX4 2005 Factory Service Manual BL-138
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: October 20052005 QX56
System DescriptionEIS008RX
IVIS (Infinity Vehicle Immobilizer System-NATS) has the following immobilizer function

BL-138
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: October 20052005 QX56
System DescriptionEIS008RX
IVIS (Infinity Vehicle Immobilizer System-NATS) has the following immobilizer functions:
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) com-
ponents.
The security indicator blinks when the ignition switch is in OFF or ACC position. IVIS (NATS) warns out-
siders 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) igni-
tion 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 origi-
nal key identification. Therefore, be sure to receive ALL KEYS from vehicle owner.
System CompositionEIS008RY
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.
PIIA1121E

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INFINITI QX4 2005 Factory Service Manual IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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ECM Re-communicating FunctionEIS0 08 RZ
The following procedure can automatically perfo

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INFINITI QX4 2005 Factory Service Manual BL-140
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: October 20052005 QX56
Wiring Diagram — NATS —EIS008S0
WIWA1318E

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INFINITI QX4 2005 Factory Service Manual IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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Terminals and Reference Value for BCMEIS008S1
CONSULT-IIEIS008S2
CONSULT-II INSPECTION

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INFINITI QX4 2005 Factory Service Manual BL-142
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: October 20052005 QX56
6. Touch "OTHER".
7. Select “NATS V.5.0”.
If “NATS V5.0” is not indicated, go to GI-39, "
CONSULT-II Data

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INFINITI QX4 2005 Factory Service Manual IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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HOW TO READ SELF-DIAGNOSTIC RESULTS
IVIS (NATS) SELF-DIAGNOSTIC RESULTS ITEM CHART
PIIA

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INFINITI QX4 2005 Factory Service Manual BL-144
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: October 20052005 QX56
Work FlowEIS008S3
SEL024X

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INFINITI QX4 2005 Factory Service Manual IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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Trouble DiagnosesEIS008S4
SYMPTOM MATRIX CHART 1
Self-diagnosis related item
*: When IV

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