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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-205
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Revision: 2006 July 2007 FX35/FX45
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)PFP:28591
Component Parts and Harness Connector LocationNIS001PK
NOTE:
If customer reports a “NO START” condition, request ALL ignition key (without intelligent key system)
or mechanical key (with intelligent key system) to be brought to the dealer to check for a NATS mal-
function.
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 July 2007 FX35/FX45
System DescriptionNIS001PL
DESCRIPTION
IVIS (Infiniti Vehicle Immobilizer System – NATS) has the following immobilizer functions:
Engine immobilizer shows high anti-theft performance to prevent engine start by other than the owner
(registered key: ignition key, mechanical key and Intelligent Key).
Only a key with key ID registered in BCM and ECM can start engine, and shows high anti-theft perfor-
mance to prevent key from being copied or stolen.
In the vehicle without Intelligent Key system, security indicator always flashes with other than ignition
switch ON or START position.
In the vehicle with Intelligent Key system, security indicator always flashes with mechanical key removed
condition (key switch OFF) and ignition knob released condition on LOCK position (ignition knob switch
OFF).
Therefore, IVIS (NATS) warns outsiders that the vehicle is equipped with the anti-theft system.
If system detects malfunction, it turns on security indicator in ignition switch ON position.
If the owner requires, mechanical key ID can be registered for up to 5 keys.
During trouble diagnosis or when the following parts have been replaced, and if ignition key or mechanical
key is added, registration* is required.
*: All keys kept by the owner of the vehicle should be registered with ignition key or mechanical key.
–ECM
–BCM
–Ignition key (models without Intelligent Key system)
–Mechanical key (models with Intelligent Key system)
IVIS (NATS) trouble diagnoses, system initialization and additional registration of other IVIS (NATS) igni-
tion key or mechanical 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
or mechanical key or mechanical key IDs can be carried out.
Regarding the procedures of IVIS (NATS) initialization and ignition key or mechanical key ID registration,
refer to CONSULT-II operation manual, NATS-IVIS/NVIS.
SECURITY INDICATOR
Warns that the vehicle has IVIS (NATS).
In the vehicle without Intelligent Key system, security indicator always flashes with other than ignition
switch ON or START position. In the vehicle with Intelligent Key system, security indicator always flashes
with mechanical key removed condition (key switch OFF) and ignition knob released condition on LOCK
position (ignition knob switch OFF).
NOTE:
Because security indicator is highly efficient, the battery is barely affected.
Condition of Security Indicator
WITHOUT INTELLIGENT KEY SYSTEM
WITH INTELLIGENT KEY SYSTEM
In ignition knob operation with Intelligent Key, it always turns on with pushing ignition knob, and always
flashes with ignition knob released (ignition knob switch OFF) condition on ignition knob “LOCK” position.
In ignition knob operation with mechanical key, it turns off on the condition that mechanical key is inserted
in key cylinder, and always flashes with ignition knob released (ignition knob switch OFF) condition on
mechanical key removed condition.
Security indicator
condition Ignition key
Operation or condition of ignition key
Ignition switch: ON position Ignition switch:
ACC position Ignition switch:
OFF position
(Key is inserted.) Ignition switch:
OFF position
(Remove key.)
Register key OFF Flashing Flashing Flashing
Ignition key not
registered ON Flashing Flashing Flashing
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Revision: 2006 July 2007 FX35/FX45
System CompositionNIS001PM
The immobilizer function of the IVIS (NATS) consists of the following:
Ignition key (models without Intelligent Key system)
Mechanical key (models with Intelligent Key system)
NATS antenna amp.
Steering lock unit. (models with Intelligent Key system)
BCM
Intelligent Key unit (models with Intelligent Key system)
Engine control module (ECM)
Security indicator
NOTE:
The communication between ECM, BCM and/or Intelligent Key unit uses the CAN communication sys-
tem.
ECM Re-Communicating FunctionNIS001PN
Performing following procedure can automatically perform re-communication of ECM and BCM or Intelligent
Key unit, but only when the ECM has been replaced with a new one (*1).
*1: New one means a virgin ECM 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
Operation 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.
1. Install ECM.
2. Using a registered key (*2), turn ignition switch to “ON”. *2: 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.
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 July 2007 FX35/FX45
Wiring Diagram – NATS –NIS001PO
MODELS WITH INTELLIGENT KEY SYSTEM
TIWM1677E
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TIWM1678E
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MODELS WITHOUT INTELLIGENT KEY SYSTEM
TIWM1679E
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Terminals and Reference Value for Steering Lock Unit/with Intelligent Key Sys-
tem
NIS001PP
Terminals and Reference Value for Intelligent Key Unit/with Intelligent Key Sys-
tem
NIS001PQ
Te r -
minal Wire
color Signal Designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1 L/R Power source (Fuse) Input LOCK — Battery voltage
2R/W Steering lock unit
power supply Input LOCK — 5
3R/B Steering lock unit com-
munication signal Input LOCK Press ignition knob with Intel-
ligent Key inside vehicle.
Other than the above 5
4Y/B Steering lock unit
ground —— — 0
SIIA1911J
Te r -
minal Wire
color Signal designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1R/W Steering lock unit power
supply Output LOCK — 5
2 L CAN-H Input/
Output —— —
3 P CAN-L Input/
Output —— —
6W Ignition power supply
(ON) Input ONIgnition knob ON or START
position Battery voltage
7 B/W Key switch Input LOCK Insert mechanical key into
ignition key cylinder. Battery voltage
Remove mechanical key
from ignition key cylinder. 0
11 L/R Power source (Fuse) Input — — Battery voltage
12 B Ground — — — 0
27 L/W Ignition knob switch Input — Press ignition knob. Battery voltage
Return ignition knob to
LOCK position. 0
31 Y/B Steering lock unit
ground —— — 0
32 R/B Steering lock unit com-
munication signal Output LOCK Press ignition knob with
Intelligent Key inside vehi-
cle.
Other than the above 5
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Terminals and Reference Value for BCMNIS001PR
*: With Intelligent Key system Te r -
minal Wire
color Signal designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
21 G/B NATS antenna amp. Input/
Output —
Ignition knob OFF
→ ON
position Tester pointer should move just
after turning ignition knob “ON”
23 G/OR Security indicator lamp Output LOCK Goes OFF
→ illuminates
(Every 2.4 seconds) Battery voltage
→ 0
25 BR NATS antenna amp. Input/
Output —Ignition knob or switch OFF
→ ON position Tester pointer should move just
after turning ignition knob “ON”
37* B/W Key switch Input — Insert mechanical key into
ignition key cylinder Battery voltage
Remove mechanical key
from ignition key cylinder 0
38 W/L Ignition power supply
(ON) Input ONIgnition knob ON or START
position Battery voltage
39 L CAN-H Input/
Output —— —
40 P CAN-L Input/
Output —— —
42 L/R Power source (Fuse) Input — — Battery voltage
49 B Ground — — — 0
52 B Ground — — — 0
55 G Power source (Fuse) Input — — Battery voltage