Almera Tino V10 (2003 year). Manual - part 179

registering another NATS ignition key ID no., it may be necessary to re-register original key iden-
tification. Therefore, be sure to receive ALL KEYS from vehicle owner.

System Composition

NLEL0586

The immobilizer function of the NATS consists of the following:

NATS ignition key

NATS immobilizer control unit (IMMU) located in the ignition key cylinder

Engine control module (ECM)

Dongle unit (RHD models)

Security indicator

Navigation control unit (Models with Navigation system)

NEL776

IDX

NATS (NISSAN ANTI-THEFT SYSTEM)

System Description (Cont’d)

EL-353

Wiring Diagram — NATS —

NLEL0587

YEL020E

NATS (NISSAN ANTI-THEFT SYSTEM)

Wiring Diagram — NATS —

EL-354

MBIB0906E

CONSULT-II

NLEL0588

CONSULT-II INSPECTION PROCEDURE

NLEL0588S01

Turn ignition switch OFF.

PBR455D

Insert NATS program card into CONSULT-II.

: Program card

NATS-AEN02C

Connect CONSULT-II to data link connector.

Turn ignition switch ON.

Touch “START”.

SOM952

Select “OTHER”.

SEL027X

Select “NATS V.5.0”.

SEL150X

Perform each diagnostic test mode according to each service
procedure.

For further information, see the CONSULT-II Operation
Manual, NATS.

IDX

NATS (NISSAN ANTI-THEFT SYSTEM)

CONSULT-II

EL-355

CONSULT-II DIAGNOSTIC TEST MODE FUNCTION

=NLEL0588S02

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/IMMU/ECM/Dongle unit]

SELF-DIAG RESULTS

Detected items (screen terms) are as shown in the chart EL-356.

NOTE:

When any initialization is performed, all ID previously reg-
istered 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 may show “DIFFERENCE OF KEY” or
“LOCK MODE” as a self-diagnostic result on the CONSULT-II
screen.

When initialization is performed for RHD models for Europe,
security indicator will flash six times to demonstrate recognition
of the dongle unit ID.

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

NLEL0588S03

SEL151X

NATS (NISSAN ANTI-THEFT SYSTEM)

CONSULT-II (Cont’d)

EL-356

NATS SELF-DIAGNOSTIC RESULTS ITEM CHART

=NLEL0588S04

Detected items (NATS program card

screen terms)

P No. Code

(Self-diag-

nostic result

of “ENGINE”

Malfunction is detected when .....

Reference page

ECM INT CIRC-IMMU

NATS MAL-
FUNCTION
P1613

The malfunction of ECM internal circuit of IMMU com-
munication line is detected.

EL-361

CHAIN OF ECM-IMMU

NATS MAL-
FUNCTION
P1612

Communication impossible between ECM and IMMU
(In rare case, “CHAIN OF ECM-IMMU” might be stored
during key registration procedure, even if the system is
not malfunctioning.)

EL-362

DIFFERENCE OF KEY

NATS MAL-
FUNCTION
P1615

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

EL-364

CHAIN OF IMMU-KEY

NATS MAL-
FUNCTION
P1614

IMMU cannot receive the key ID signal.

EL-365

ID DISCORD, IMM-ECM

NATS MAL-
FUNCTION
P1611

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

EL-368

LOCK MODE

NATS MAL-
FUNCTION
P1610

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

Unregistered ignition key is used.

IMMU or ECM’s malfunctioning.

EL-371

DON’T ERASE BEFORE
CHECKING ENG DIAG

—

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

EL-358

IDX

NATS (NISSAN ANTI-THEFT SYSTEM)

CONSULT-II (Cont’d)

EL-357

Trouble Diagnoses

NLEL0589

WORK FLOW

NLEL0589S01

SEL729WE

NATS (NISSAN ANTI-THEFT SYSTEM)

Trouble Diagnoses

EL-358

First perform the “SELF-DIAG RESULTS” in “SMART ENTRANCE”
with CONSULT-II, when perform the each trouble diagnosis. Refer
to EL-355, “CONSULT-II INSPECTION PROCEDURE”.

SYMPTOM MATRIX CHART 1

NLEL0589S02

Self-diagnosis related item

SYMPTOM

Displayed “SELF-DIAG

RESULTS” on CON-

SULT-II screen.

DIAGNOSTIC PROCE-

DURE

(Reference page)

SYSTEM

(Malfunctioning part or

mode)

REFERENCE PART

NO. OF ILLUSTRATION
ON SYSTEM DIAGRAM

Security indicator
lighting up*

Engine cannot be
started

ECM INT CIRC-IMMU

PROCEDURE 1

(EL-361, “Diagnostic

Procedure 1”)

ECM

CHAIN OF ECM-IMMU

PROCEDURE 2

(EL-362, “Diagnostic

Procedure 2”)

In rare case, “CHAIN
OF ECM-IMMU” might
be stored during key
registration procedure,
even if the system is not
malfunctioning.

—

Open circuit in battery
voltage line of IMMU
circuit

Open circuit in ignition
line of IMMU circuit

Open circuit in ground
line of IMMU circuit

Open circuit in commu-
nication line between
IMMU and ECM

Short circuit between
IMMU and ECM com-
munication line and bat-
tery voltage line

Short circuit between
IMMU and ECM com-
munication line and
ground line

ECM

IMMU

DIFFERENCE OF KEY

PROCEDURE 3

(EL-364, “Diagnostic

Procedure 3”)

Unregistered key

IMMU

IDX

NATS (NISSAN ANTI-THEFT SYSTEM)

Trouble Diagnoses (Cont’d)

EL-359

SYMPTOM

Displayed “SELF-DIAG

RESULTS” on CON-

SULT-II screen.

DIAGNOSTIC PROCE-

DURE

(Reference page)

SYSTEM

(Malfunctioning part or

mode)

REFERENCE PART

NO. OF ILLUSTRATION
ON SYSTEM DIAGRAM

Security indicator
lighting up*

Engine cannot be
started

CHAIN OF IMMU-KEY

PROCEDURE 4

(EL-365, “Diagnostic

Procedure 4”)

Malfunction of key ID
chip

Communication line
between ANT/ AMP and
IMMU:
Open circuit or short
circuit of battery voltage
line or ground line

Open circuit in power
source line of ANT/ AMP
circuit

Open circuit in ground
line of ANT/ AMP circuit

Antenna amp.

Dongle unit

IMMU

ID DISCORD, IMM-ECM

PROCEDURE 5

(EL-368, “Diagnostic

Procedure 5”)

System initialization has
not yet been completed.

ECM

LOCK MODE

PROCEDURE 7

(EL-371, “Diagnostic

Procedure 7”)

LOCK MODE

Security indicator light-
ing up*

DON’T ERASE
BEFORE CHECKING
ENG DIAG

WORK FLOW

(EL-358, “Work Flow”)

Engine trouble data and
NATS trouble data have
been detected in ECM

—

*: When NATS detects trouble, the security indicator lights up while ignition key is in the “ON” position.

SYMPTOM MATRIX CHART 2

NLEL0589S03

Non self-diagnosis related item

SYMPTOM

DIAGNOSTIC PROCEDURE

(Reference page)

SYSTEM

(Malfunctioning part or mode)

REFERENCE PART NO. OF

ILLUSTRATION ON SYSTEM

DIAGRAM

Security ind. does not light up.

PROCEDURE 6

(EL-369, “Diagnostic Proce-

dure 6”)

Security ind.

—

Open circuit between Fuse and
IMMU

—

Continuation of initialization
mode

—

IMMU

Security ind. does not blink just
after initialization even if the
vehicle is equipped with dongle
unit.

PROCEDURE 8

(EL-373, “RHD models only:

Diagnostic Procedure 8”)

NATS might be initialized with-
out connecting dongle unit
properly.

—

Security ind. does not blink just
after ignition switch is turned to
ON when some malfunction
related to NATS is detected
even if the vehicle is equipped
with dongle unit.

Open circuit in ground line of
dongle unit circuit

Open or short circuit in com-
munication line between IMMU
and dongle unit

Dongle unit

NATS (NISSAN ANTI-THEFT SYSTEM)

Trouble Diagnoses (Cont’d)

EL-360

DIAGNOSTIC SYSTEM DIAGRAM

NLEL0589S04

SIIA1667E

SEL152X

DIAGNOSTIC PROCEDURE 1

NLEL0589S05

Self-diagnostic results:
“ECM INT CIRC-IMMU” displayed on CONSULT-II screen
1.

Confirm SELF-DIAGNOSTIC RESULTS “ECM INT CIRC-
IMMU” displayed on CONSULT-II screen.

Replace ECM.
Ref. part No. B

Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II operation manual
NATS”.

IDX

NATS (NISSAN ANTI-THEFT SYSTEM)

Trouble Diagnoses (Cont’d)

EL-361

DIAGNOSTIC PROCEDURE 2

=NLEL0589S06

Self-diagnostic results:
“CHAIN OF ECM-IMMU” displayed on CONSULT-II screen

CONFIRM SELF-DIAGNOSTIC RESULTS

Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF ECM-IMMU” displayed on CONSULT-II screen.
NOTE:
In rare case, “CHAIN OF ECM-IMMU” might be stored during key registration procedure, even if the system is not mal-
functioning.

SEL292W

Is CONSULT-II screen displayed as above?

Yes

GO TO 2.

GO TO EL-359, “SYMPTOM MATRIX CHART 1”.

CHECK POWER SUPPLY CIRCUIT FOR IMMU

1. Disconnect IMMU connector.
2. Check voltage between IMMU (Smart entrance control unit) harness connector M101 terminal 56 (R/B) and ground.

YEL368E

Battery voltage should exist.

OK or NG

GO TO 3.

Check the following

10A fuse [No. 12, located in the fuse block (J/B)]

Harness for open or short between fuse and IMMU connector
Ref. Part No. C1

NATS (NISSAN ANTI-THEFT SYSTEM)

Trouble Diagnoses (Cont’d)

EL-362

CHECK IGN SW. ON SIGNAL

1. Turn ignition switch ON.
2. Check voltage between IMMU (Smart entrance control unit) harness connector M100 terminal 29 (Y/G) and ground.

SIIA1668E

Battery voltage should exist.

OK or NG

GO TO 4.

Check the following

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

Harness for open or short between fuse and IMMU (Smart entrance control unit)
Ref. part No. C2

CHECK GROUND CIRCUIT FOR IMMU

1. Turn ignition OFF.
2. Check continuity between IMMU (Smart entrance control unit) harness connector M101 terminal 53 (B) and ground.

SIIA1565E

Continuity should exist.

OK or NG

GO TO 5.

Repair harness. Ref. part No. C3

REPLACE IMMU (SMART ENTRANCE CONTROL UNIT)

1. Replace IMMU (Smart entrance control unit) Ref. part No. A
2. Perform initialization with CONSULT-II.

For initialization, refer to “CONSULT-II operation manual NATS”.

Does the engine start?

Yes

IMMU (Smart entrance control unit) is malfunctioning.

ECM is malfunctioning.

Replace ECM. Ref. part No. B

Perform initialization with CONSULT-II
For initialization, refer to “CONSULT-II operation manual NATS”

IDX

NATS (NISSAN ANTI-THEFT SYSTEM)

Trouble Diagnoses (Cont’d)

EL-363

DIAGNOSTIC PROCEDURE 3

NLEL0589S07

Self-diagnostic results:
“DIFFERENCE OF KEY” displayed on CONSULT-II screen

CONFIRM SELF-DIAGNOSTIC RESULTS

Confirm SELF-DIAGNOSTIC RESULTS “DIFFERENCE OF KEY” displayed on CONSULT-II screen.

SEL367X

Is CONSULT-II screen displayed as above?

Yes

GO TO 2.

GO TO EL-359, “SYMPTOM MATRIX CHART 1”.

PERFORM INITIALIZATION WITH CONSULT-II

Perform initialization with CONSULT-II. Re-register all NATS ignition key IDs.
For initialization and registration of NATS ignition key IDs, refer to “CONSULT-II operation manual NATS”.
NOTE:
If the initialization is not completed or fails, CONSULT-II shows above message on the screen.

SEL297W

Can the system be initialized and can the engine be started with re-registered NATS ignition key?

Yes

Ignition key ID was unregistered. Ref. part No. D

IMMU (Smart entrance control unit) is malfunctioning.

Replace IMMU (Smart entrance control unit). Ref. part No. A

Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II operation manual NATS”.

NATS (NISSAN ANTI-THEFT SYSTEM)

Trouble Diagnoses (Cont’d)

EL-364

DIAGNOSTIC PROCEDURE 4

=NLEL0589S08

Self-diagnostic results:
“CHAIN OF IMMU-KEY” displayed on CONSULT-II screen

CONFIRM SELF-DIAGNOSTIC RESULTS

Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF IMMU-KEY” displayed on CONSULT-II screen.

SEL957W

Is CONSULT-II screen displayed as above?

Yes

GO TO 2.

GO TO EL-359, “SYMPTOM MATRIX CHART 1”.

CHECK NATS ANTENNA AMP. INSTALLATION

Check NATS antenna amp. installation. Refer to EL-374, “How to Replace NATS Antenna Amp”.

OK or NG

Yes

GO TO 3.

Reinstall NATS antenna amp. correctly.

CHECK NATS IGNITION KEY ID CHIP

Start engine with another registered NATS ignition key.

Does the engine start?

Yes

Ignition key ID chip is malfunctioning.

Replace the ignition key.

Ref. part No. E5

Perform initialization with CONSULT-II.

For initialization, refer to “CONSULT-II Operation Manual NATS”.

GO TO 4.

IDX

NATS (NISSAN ANTI-THEFT SYSTEM)

Trouble Diagnoses (Cont’d)

EL-365

CHECK POWER SUPPLY FOR NATS ANTENNA AMP.

Check voltage between NATS antenna amp. harness connector M29 terminal 1 (G) and ground with analogue tester.

SIIA1670E

Before turning ignition switch “ON”

Voltage: 0V

Just after turning ignition switch “ON”:

Pointer of tester should move.

OK or NG

GO TO 5.

Check harness for open or short between NATS antenna amp and IMMU (Smart
entrance control unit).
NOTE:
If harness is OK, replace IMMU (Smart entrance control unit), perform initialization
with CONSULT-II. For initialization, refer to “CONSULT-II operation manual NATS”.

CHECK NATS ANTENNA AMP. SIGNAL LINE-1

Check voltage between NATS antenna amp. harness connector M29 terminal 3 (G/W) and ground with analogue tester.

SIIA1671E

Before turning ignition switch “ON”

Voltage: 0V

Just after turning ignition switch “ON”:

Pointer of tester should move.

OK or NG

GO TO 6.

NATS (NISSAN ANTI-THEFT SYSTEM)

Trouble Diagnoses (Cont’d)

EL-366

CHECK NATS ANTENNA AMP. SIGNAL LINE-2

Check voltage between NATS antenna amp. harness connector M29 terminal 7 (Y/G) and ground with analogue tester.

SIIA1672E

Before turning ignition switch “ON”

Voltage: 0V

Just after turning ignition switch “ON”:

Pointer of tester should move.

OK or NG

GO TO 7.

CHECK NATS ANTENNA AMP. GROUND LINE CIRCUIT

1. Turn ignition switch “OFF”
2. Disconnect NATS antenna amp connector.
3. Check continuity between NATS antenna amp. harness connector M29 terminal 5 (G/OR) and ground.

SIIA1673E

Continuity should exist.

OK or NG

NATS antenna amp. malfunctioning.
Ref. part No. E6

IDX

NATS (NISSAN ANTI-THEFT SYSTEM)

Trouble Diagnoses (Cont’d)

EL-367

DIAGNOSTIC PROCEDURE 5

=NLEL0589S09

Self-diagnostic results:
“ID DISCORD, IMM-ECM” displayed on CONSULT-II screen

CONFIRM SELF-DIAGNOSTIC RESULTS

Confirm SELF-DIAGNOSTIC RESULTS “ID DISCORD, IMM-ECM” displayed on CONSULT-II screen.
NOTE:
“ID DISCORD IMMU-ECM”:
Registered ID of IMMU is in discord with that of ECM.

SEL958W

Is CONSULT-II screen displayed as above?

Yes

GO TO 2.

GO TO EL-359, “SYMPTOM MATRIX CHART 1”.

PERFORM INITIALIZATION WITH CONSULT-II

Perform initialization with CONSULT-II. Re-register all NATS ignition key IDs.
For initialization, refer to “CONSULT-II operation manual NATS”.

SEL297W

NOTE:
If the initialization is not completed or fails, CONSULT-II shows above message on the screen.

Can the system be initialized?

Yes

Start engine. (END)

(System initialization had not been completed. Ref. part No. B)

ECM is malfunctioning.

Replace ECM. Ref. part No. B

Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II operation manual NATS”.

NATS (NISSAN ANTI-THEFT SYSTEM)

Trouble Diagnoses (Cont’d)

EL-368

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