Content .. 227 228 229 230 ..

Infiniti FX35 / FX45. Manual - part 229

VEHICLE SECURITY (THEFT WARNING) SYSTEM

BL-183

< SERVICE INFORMATION >

With CONSULT-III

Check (“THEFT IND”) in “ACTIVE TEST” mode with CONSULT-III.

Without CONSULT-III

Check voltage between BCM connector and ground.

OK or NG

>> Security indicator lamp is OK.

>> GO TO 2.

CHECK HARNESS CONTINUITY

Turn ignition switch OFF.

Disconnect BCM and security indicator lamp connector.

Check continuity between BCM connector M3 terminal 23 and
security indicator lamp connector M38 terminal 2.

OK or NG

Check the following.

• Harness for open or short between BCM and security

indicator lamp.

• 10A fuse [No.19, located in fuse block (J/B)]

>> Repair or replace harness between BCM and security

indicator lamp.

Diagnosis Procedure 3

INFOID:0000000001327918

FRONT DOOR KEY CYLINDER SWITCH CHECK

CHECK KEY CYLINDER SWITCH OPERATION

Check door key cylinder switch using key.

Do doors lock / unlock when using the key?

YES

>> Front door key cylinder switch operation is OK.

>> Check door key cylinder switch circuit. Refer to

GW-43, "Check Front Door Key Cylinder Switch"

Diagnosis Procedure 4

INFOID:0000000001327919

VEHICLE SECURITY HORN ALARM CHECK

CHECK HORN OPERATION

Check if horn sounds with horn switch.

Does horn operate?

YES

>> Check harness for open or short between IPDM E/R and horn relay.

>> Check horn circuit. Refer to

WW-48

Diagnosis Procedure 5

INFOID:0000000001327920

VEHICLE SECURITY HEADLAMP ALARM CHECK

Perform operation shown on display indicator lamp
should illuminate.

Connector

Terminals (Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(-)

23 (G/OR)

Ground

Illuminates

Goes off

Battery voltage

PIIA6230E

23 (G/OR) – 2 (G/OR)

: Continuity should exist.

PIIA6231E

BL-184

< SERVICE INFORMATION >

VEHICLE SECURITY (THEFT WARNING) SYSTEM

CHECK HEADLAMP OPERATION

Check if headlamp operates by lighting switch.
Does headlamp come on when turning switch “ON”?

YES

>> Headlamp alarm circuit is OK.

>> Check headlamp system. Refer to

LT-5

LT-32

Diagnosis Procedure 6

INFOID:0000000001327921

DOOR LOCK AND UNLOCK SWITCH CHECK

CHECK DOOR LOCK AND UNLOCK SWITCH INPUT SIGNAL

Check if power door lock operated by door lock and unlock switch.

Do doors lock / unlock when using each door lock and unlock switches?

YES

>> Door lock and unlock switch is OK.

>> Check door lock and unlock switch. Refer to

BL-43, "Check Door Lock and Unlock Switch"

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

BL-185

< SERVICE INFORMATION >

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

Component Parts and Harness Connector Location

INFOID:0000000001327922

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.

System Description

INFOID:0000000001327923

DESCRIPTION

IVIS (Infinity 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 (regis-

tered 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 performance

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.

PIIA6649E

BL-186

< SERVICE INFORMATION >

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

• 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) ignition

key or mechanical key IDs must be carried out using CONSULT-III hardware and CONSULT-III IVIS (NATS)
software. When IVIS (NATS) initialization has been completed, the ID of the inserted ignition key or mechan-
ical 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-III 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.

System Composition

INFOID:0000000001327924

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:

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 (Re-

move key.)

OFF

Flashing

Ignition key not
registered

Flashing

Content .. 227 228 229 230 ..