Infiniti F50. Manual — part 240
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-207
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D
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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
to NATS IMMU communication line is
detected.
Refer to
.
CHAIN OF ECM-IMMU
P1612
Communication impossible between
ECM and NATS IMMU.
Refer to
.
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
.
CHAIN OF IMMU-KEY
P1614
NATS IMMU cannot receive the key ID
signal.
Refer to
.
ID DISCORD, IMM-ECM
P1611
The result of ID verification between
NATS IMMU and ECM is NG. System ini-
tialization is required.
Refer to
.
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 prevent the engine
start.
●
unregistered electronic key is used
●
NATS IMMU or ECM malfunctioning
Refer to
.
DON'T ERASE BEFORE
CHECKING ENG DIAG
—
Engine trouble data and IVIS (NATS)
trouble data have been detected in ECM.
Refer to
.
BL-208
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Work Flow
EIS0012E
PIIA0379E
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-209
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Symptom Chart 1
EIS0028Z
*: 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
.
ECM
B
CHAIN OF ECM-IMMU
[P1612]
Refer to
.
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
.
Unregistered key
D
NATS IMMU
A
CHAIN OF IMMU-KEY
[P1614]
Refer to
.
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
System initialization has
not yet been completed.
F
ECM
B
LOCK MODE
[P1610]
Refer to
.
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
prevent the engine start.
●
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
Refer to
Engine trouble data and
IVIS (NATS) trouble data
have been detected in
ECM
—
BL-210
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Symptom Chart 2
EIS00159
*: CONSULT-II self-diagnostic results display screen “no malfunction is detected”.
Diagnostic System Diagram
EIS0015A
Diagnostic Procedure 1
EIS00291
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
NO
>> GO TO
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
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