INFINITI FX35 2005 Service Manual

BL-216
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2005 July 2005 FX
Wiring Diagram – NATS –AIS004PE
MODELS WITH INTELLIGENT KEY SYSTEM
TIWM0422E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-217
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Revision: 2005 July 2005 FX
TIWM0423E

BL-218
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2005 July 2005 FX
MODELS WITHOUT INTELLIGENT KEY SYSTEM
TIWM0339E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-219
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Revision: 2005 July 2005 FX
Terminals and Reference Value for Steering Lock Unit/with Intelligent Key Sys-
tem
AIS004PF
Terminals and Reference Value for Intelligent Key Unit/with Intelligent Key Sys-
tem
AIS004PG
Te r -
minal
No. Wire
color Signal Designation Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1 L/R Power source (Fuse) LOCK — Battery voltage
2R/W Steering lock unit
power supply LOCK — 5
3R/B Steering lock unit com-
munication signal LOCK Press ignition knob with Intelligent Key
inside vehicle.
Other than the above 5
4Y/B Steering lock unit
ground —— 0
SIIA1911J
Te r -
minal
No. Wire
color Signal designation Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1R/W Steering lock unit
power supply LOCK — 5
2 L CAN-H — — —
3 R CAN-L — — —
6G/R Ignition power supply
(ON) ON Ignition knob ON or START position Battery voltage
7 B/W Key switch LOCK Insert mechanical key into ignition key
cylinder. Battery voltage
Remove mechanical key from ignition
key cylinder. 0
11 L/R Power source (Fuse) — — Battery voltage
12 B Ground — — 0
27 L/W Ignition knob switch — Press ignition knob. Battery voltage
Return ignition knob to LOCK position. 0
31 Y/B Steering lock unit
ground —— 0
32 R/B Steering lock unit com-
munication signal LOCK Press ignition knob with Intelligent Key
inside vehicle.
Other than the above 5
SIIA1911J

BL-220
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2005 July 2005 FX
Terminals and Reference Value for BCMAIS004PH
*: With Intelligent Key system Te r -
minal No. Wire
color Signal designation Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
21 G/B NATS antenna apm. — Ignition knob OFF → ON position Tester pointer should move just
after turning ignition knob “ON”
23 G/OR Security indicator lamp LOCK Goes OFF
→ illuminates (Every 2.4
seconds) Battery voltage
→ 0
25 BR NATS antenna amp. — Ignition knob or switch OFF
→ ON posi-
tion Tester pointer should move just
after turning ignition knob “ON”
37* B/W Key switch — Insert mechanical key into ignition key
cylinder Battery voltage
Remove mechanical key from ignition
key cylinder 0
38 W/L Ignition power supply
(ON) ON Ignition knob ON or START position Battery voltage
39 L CAN-H — — —
40 R CAN-L — — —
42 L/R Power source (Fuse) — — Battery voltage
49 B Ground — — 0
52 B Ground — — 0
55 G Power source (Fuse) — — Battery voltage

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-221
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Revision: 2005 July 2005 FX
CONSULT-IIAIS004PI
CONSULT-II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection CONSULT-II CONVERTER, malfunctions might be detected
in self-diagnosis depending on control unit which carry out CAN Communication.
1. Turn ignition switch OFF.
2. Insert IVIS (NATS) program card into CONSULT-II.
3. Connect CONSULT-II and “CONSULT-II CONVERTER” to data link connector.
4. Turn ignition switch ON.
5. Touch “START”.
6. Touch “OTHER”.
7. Perform each diagnostic test mode according to each service procedure.
For further information, see the CONSULT-II Operation Manual,
NATS-IVIS/NVIS. Program card : NATS (AEN02C)
PBIB0196E
PBR455D
PIIA6816E
SEL150X

BL-222
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2005 July 2005 FX
CONSULT-II DIAGNOSTIC TEST MODE FUNCTION
NOTE:
When any initialization is performed, all ID numbers previously registered will be erased and all ignition key or
mechanical key must be registered again. The engine cannot be started with an unregistered key. The system
will show “DIFFERENCE OF KEY” or “LOCK MODE” as a self-diagnostic result on the CONSULT-II screen.
HOW TO READ SELF-DIAGNOSTIC RESULTS
CONSULT- II DIAGNOSTIC TEST MODE Description
C/U INITIALIZATION When replacing any of the following three components, C/U initialization is necessary.
[IVIS (NATS) ignition key/ BCM/ ECM]
SELF- DIAGNOSTIC RESULTS Detected items (screen terms) are as shown in the chart.
PIN READ Individual control unit number can be read.
For future information, refer to operation manual NATS-IVIS/NVIS
PIIA1124E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-223
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Revision: 2005 July 2005 FX
NATS SELF-DIAGNOSTIC RESULT ITEM CHART
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 BCM communication line is detected. Refer to
BL-226, "
Diagnostic
Procedure 1" .
CHAIN OF ECM-IMMU P1612 Communication impossible between
ECM and BCM. Refer to
BL-227, "
Diagnostic
Procedure 2" .
DIFFERENCE OF KEY P1615 BCM can receive the key ID signal but
the result of ID verification between key
ID and BCM is NG. Refer to
BL-228, "
Diagnostic
Procedure 3" .
CHAIN OF IMMU-KEY P1614 BCM cannot receive the key ID signal. Refer to
BL-231, "
Diagnostic
Procedure 6" .
ID DISCORD, IMM-ECM P1611 The result of ID verification between
BCM and ECM is NG. System initializa-
tion is required. Refer to
BL-229, "
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 prevent the engine
start.

unregistered ignition key is used (with-
out intelligent key system)

BCM or ECM malfunctioning Refer to
BL-230, "
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-224, "
WORK
FLOW" .

BL-224
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2005 July 2005 FX
Diagnosis ProcedureAIS004PJ
WORK FLOW
MIIB0391E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-225
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Revision: 2005 July 2005 FX
Trouble Diagnosis Symptom ChartAIS004PK
*: When IVIS (NATS) detects trouble, the security indicator lights up while electronic key is in the “ON” position.
Security Indicator InspectionAIS004PL
*: CONSULT-II self-diagnostic results display screen “no malfunction is detected”. SYMPTOM
Displayed “SELF-DIAG
RESULTS” on CON- SULT-II screen. DIAGNOSTIC PROCE-
DURE SYSTEM (Malfunctioning part or mode)

Security indicator
lighting up*

Engine hard to start ECM INT CIRC-IMMU
[P1613] Refer to
BL-226, "
Diag-
nostic Procedure 1" . ECM
CHAIN OF ECM-IMMU [P1612] Refer to
BL-227, "
Diag-
nostic Procedure 2" . Open circuit in battery voltage line to BCM (NATS
IMMU) circuit
Open circuit in ignition line to BCM (NATS IMMU)
circuit
Open circuit in ground line to BCM (NATS IMMU)
circuit
Open or short circuit between BCM (NATS IMMU)
and ECM communication line.
ECM
BCM (NATS IMMU)
DIFFERENCE OF KEY [P1615] Refer to
BL-228, "
Diag-
nostic Procedure 3" . Unregistered key
NATS IMMU
CHAIN OF IMMU-KEY
[P1614] Refer to
BL-231, "
Diag-
nostic Procedure 6" . Open or short circuit between BCM (NATS IMMU)
and NATS antenna amp.
Malfunction of key ID chip
BCM (NATS IMMU)
Antenna amp.
ID DISCORD, IMM-ECM [P1611] Refer to
BL-229, "
Diag-
nostic Procedure 4"
System initialization has not yet been completed.
ECM
LOCK MODE [P1610] Refer to
BL-230, "
Diag-
nostic Procedure 5" . LOCK MODE

MIL staying ON

Security indicator
lighting up* DON'T ERASE
BEFORE CHECKING
ENG DIAG Refer to
BL-224, "WORK FLOW" . Engine trouble data and IVIS (NATS) trouble data
have been detected in ECM
SYMPTOM SYSTEM
(Malfunctioning part or mode) DIAGNOSTIC PROCEDURE
Security indicator does not operate* Security indicator
Refer to BL-233, "
Diagnostic
Procedure 7" .
Open circuit between Fuse and BCM (NATS
IMMU)
Continuation of initialization mode
BCM (NATS IMMU)