Infiniti M45 (Y34). Manual - part 239

 

  Index      Infiniti     Infiniti M45 (Y34) - service repair manual 2004 year

 

Search            copyright infringement  

 

 

 

 

 

 

 



 

 

Content   ..  237  238  239  240   ..

 

 

Infiniti M45 (Y34). Manual - part 239

 

 

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

BL-181

C

D

E

F

G

H

J

K

L

M

A

B

BL

HOW TO READ SELF-DIAGNOSTIC RESULTS

NATS SELF-DIAGNOSTIC RESULT ITEM CHART

PIIA1124E

Detected items (Screen terms)

P No.Code

(Self-diagnostic 

result of 

“ENGINE”)

Description

Diagnostic procedure 

ECM INT CIRC-IMMU

P1613

The malfunction of ECM internal circuit 
of NATS IMMU communication line is 
detected.

Refer to 

BL-184, "Diagnostic 

Procedure 1"

 .

CHAIN OF ECM-IMMU

P1612

Communication impossible between 
ECM and NATS IMMU.

Refer to 

BL-185, "Diagnostic 

Procedure 2"

 .

DIFFERENCE OF KEY

P1615

NATS IMMU can receive the key ID sig-
nal but the result of ID verification 
between key ID and NATS IMMU is NG.

Refer to 

BL-187, "Diagnostic 

Procedure 3"

 .

CHAIN OF IMMU-KEY

P1614

NATS IMMU cannot receive the key ID 
signal.

Refer to 

BL-189, "Diagnostic 

Procedure 6"

 .

ID DISCORD, IMM-ECM

P1611

The result of ID verification between 
NATS IMMU and ECM is NG. System ini-
tialization is required.

Refer to 

BL-187, "Diagnostic 

Procedure 4"

 .

LOCK MODE

P1610

When the starting operation is carried 
out 5 or more times consecutively under 
the following conditions, IVIS(NATS) will 
shift the mode to one which prevents the 
engine from being started.

unregistered electronic key is used

NATS IMMU or ECM malfunctioning

Refer to 

BL-188, "Diagnostic 

Procedure 5"

 .

DON'T ERASE BEFORE 
CHECKING ENG DIAG

Engine trouble data and IVIS (NATS) 
trouble data have been detected in ECM.

Refer to 

BL-182, "Work Flow"

 .

BL-182

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

Work Flow

AIS002AW

PIIA0379E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

BL-183

C

D

E

F

G

H

J

K

L

M

A

B

BL

Symptom Chart 1

AIS002AX

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

SYMPTOM

Displayed “SELF-DIAG 

RESULTS” on CON-

SULT-II screen.

DIAGNOSTIC PROCE-

DURE

SYSTEM (Malfunction-

ing part or mode)

REFERENCE PART 

NO. OF ILLUSTRATION

Security indicator 
lighting up*

Engine hard to start

ECM INT CIRC-IMMU

[P1613]

Refer to 

BL-184, "Diag-

nostic Procedure 1"

 .

ECM

B

CHAIN OF ECM-IMMU

[P1612]

Refer to 

BL-185, "Diag-

nostic Procedure 2"

 .

Open circuit in battery 
voltage line of NATS 
IMMU circuit

C1

Open circuit in ignition 
line of NATS IMMU cir-
cuit

C2

Open circuit in ground 
line of NATS IMMU cir-
cuit

C3

Open or short circuit 
between NATS IMMU 
and ECM communica-
tion line.

C4

ECM

B

NATS IMMU

A

DIFFERENCE OF KEY

[P1615]

Refer to 

BL-187, "Diag-

nostic Procedure 3"

 .

Unregistered key

D

NATS IMMU

A

CHAIN OF IMMU-KEY
[P1614]

Refer to 

BL-189, "Diag-

nostic Procedure 6"

 .

Open or short circuit 
between NATS IMMU 
and NATS antenna amp.

E1 - E4

Malfunction of key ID 
chip

D

NATS IMMU

A

Antenna amp.

E

ID DISCORD, IMM-ECM

[P1611]

Refer to 

BL-187, "Diag-

nostic Procedure 4"

System initialization has 
not yet been completed.

F

ECM

B

LOCK MODE

[P1610]

Refer to 

BL-188, "Diag-

nostic Procedure 5"

 .

LOCK MODE

When the starting opera-
tion is carried out 5 or 
more times consecu-
tively under the following 
conditions, IVIS(NATS) 
will shift the mode to one 
which prevents the 
engine from being 
started.

unregistered elec-
tronic key is used

NATS IMMU or ECM 
malfunctioning

MIL staying ON

Security indicator 
lighting up*

DON'T ERASE 
BEFORE CHECKING 
ENG DIAG

WORK FLOW

Engine trouble data and 
IVIS (NATS) trouble data 
have been detected in 
ECM

BL-184

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

Symptom Chart 2

AIS002AY

*: CONSULT-II self-diagnostic results display screen “no malfunction is detected”.

Diagnostic System Diagram

AIS002AZ

Diagnostic Procedure 1

AIS002B0

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

1. 

CONFIRM SELF-DIAGNOSTIC RESULTS

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

Is CONSULT-II screen displayed as above?

YES

>> ECM is malfunctioning.

Replace ECM. Ref. part No. B

Perform initialization or re-communicating function.

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

For re-communicating function, refer to 

BL-174, "ECM

Re-Communicating Function"

 .

NO

>> GO TO 

BL-183, "Symptom Chart 1"

 .

SYMPTOM

SYSTEM

(Malfunctioning part or mode)

Security indicator does not light up*

Security indicator

Open circuit between Fuse and NATS IMMU

Continuation of initialization mode

NATS IMMU

PIIA0378E

SEL314W

 

 

 

 

 

 

 

Content   ..  237  238  239  240   ..