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Nissan Pathfinder (2006 year). Manual - part 100

NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

BL-101

2006 Pathfinder

System Description

EIS007QA

NVIS (Nissan Vehicle Immobilizer System-NATS) has the following immobilizer functions:

●

Since only NVIS (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 NVIS (NATS) registered key is prevented by NVIS
(NATS).
NVIS (NATS) will immobilize the engine if someone tries to start it without the registered key of NVIS
(NATS).

●

All of the originally supplied ignition key IDs have been NVIS (NATS) registered.
If requested by the vehicle owner, a maximum of five key IDs can be registered into the NVIS (NATS)
components.

●

The security indicator blinks when the ignition switch is in OFF or ACC position. NVIS (NATS) warns out-
siders that the vehicle is equipped with the anti-theft system.

●

When NVIS (NATS) detects a malfunction, the security indicator lamp lights up while ignition key is in the
ON position.

●

NVIS (NATS) trouble diagnoses, system initialization and additional registration of other NVIS (NATS)
ignition key IDs must be carried out using CONSULT-II hardware and CONSULT-II NVIS (NATS) software.
When NVIS (NATS) initialization has been completed, the ID of the inserted ignition key is automatically
NVIS (NATS) registered. Then, if necessary, additional registration of other NVIS (NATS) ignition key IDs
can be carried out.
Regarding the procedures of NVIS (NATS) initialization and NVIS (NATS) ignition key ID registration, refer
to CONSULT-II Operation Manual NATS-IVIS/NVIS.

●

When servicing a malfunction of the NVIS (NATS) (indicated by lighting up of Security Indicator
Lamp) or registering another NVIS (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 Composition

EIS007QB

The immobilizer function of the NVIS (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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NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

2006 Pathfinder

ECM Re-communicating Function

EIS007QC

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
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.

Install ECM.

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.

Maintain ignition switch in ON position for at least 5 seconds.

Turn ignition switch to OFF.

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.

NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

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2006 Pathfinder

Wiring Diagram — NATS —

EIS007QD

WIWA1620E

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NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

2006 Pathfinder

Terminals and Reference Value for BCM

EIS007QE

Refer to

BCS-12, "Terminals and Reference Values for BCM"

CONSULT-II

EIS007QF

CONSULT-II INSPECTION PROCEDURE

CAUTION:

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.

Turn ignition switch OFF.

Insert NVIS (NATS) program card into CONSULT-II.

Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector.

Turn ignition switch ON.

Touch “START”.

Touch "OTHER".

Select “NATS V.5.0”.
If “NATS V5.0” is not indicated, go to

GI-40, "CONSULT-II Data

Link Connector (DLC) Circuit"

Program card

: NATS (AEN04A-1) or later

BBIA0538E

PBR455D

LIIA0556E

SEL027X

NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

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2006 Pathfinder

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
procedure, even if the system is not malfunctioning.

HOW TO READ SELF-DIAGNOSTIC RESULTS

SEL150X

CONSULT-II DIAGNOSTIC TEST

MODE

Description

C/U INITIALIZATION

When 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 RESULTS

Detected items (screen terms) are as shown in the chart.
Refer to

BL-106, "NVIS (NATS) SELF-DIAGNOSTIC RESULTS ITEM CHART"

PIIA1124E

BL-106

NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

2006 Pathfinder

NVIS (NATS) SELF-DIAGNOSTIC RESULTS ITEM CHART

Detected items

[NVIS (NATS) program card screen

terms]

P No. Code

(Self-diagnostic

result of

“ENGINE”)

Malfunction is detected when.....

Reference

page

CHAIN OF ECM-IMMU
[P1612]

NATS MAL-
FUNCTION
P1612

Communication 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-110

DIFFERENCE OF KEY
[P1615]

NATS MAL-
FUNCTION
P1615

BCM can receive the key ID signal but the result of ID
verification between key ID and BCM is NG.

Refer to

BL-111

CHAIN OF IMMU-KEY
[P1614]

NATS MAL-
FUNCTION
P1614

BCM cannot receive the key ID signal.

Refer to

BL-114

ID DISCORD, IMM-ECM
[P1611]

NATS MAL-
FUNCTION
P1611

The result of ID verification between BCM and ECM is
NG. System initialization is required.

Refer to

BL-112

LOCK MODE
[P1610]

NATS MAL-
FUNCTION
P1610

When the starting operation is carried out five or more
times consecutively under the following conditions, NVIS
(NATS) will shift the mode to one which prevents the
engine from being started.

●

Unregistered ignition key is used.

●

BCM or ECM malfunctioning.

Refer to

BL-113

DON'T ERASE BEFORE CHECK-
ING ENG DIAG

—

All engine trouble codes except NVIS (NATS) trouble
code has been detected in ECM.

Refer to

BL-107