engine INFINITI FX35 2006 Service Manual

BL-94
INTELLIGENT KEY SYSTEM
Revision: 2006 December 2006 FX35/FX45
CHANGE SETTINGS FUNCTION
The settings for each function can be changed with the CONSULT-II or Intelligent Key operation.
Changing Settings With the Intelligent Key
Intelligent Key remote controller button and door request switch operations change the engine startup function
settings (startup enabled/disabled) for each Intelligent Key independently.
Settings Change Procedure
1. With the ignition switch is in the LOCK position (ignition knob not pressed), hold down both the LOCK and UNLOCK remote control buttons on the Intelligent Key at the same time for at least 10 seconds (The yard-
stick is that the Intelligent Key LED flashes 20 times.)
2. Within 5 seconds of releasing the Intelligent Key remote controller buttons, press the driver door request switch.
3. The KEY warning lamp in combination meter lights up for 3 seconds (engine starting enabled → starting
disabled: lights up red, engine starting disabled → flashes green). This completes the settings change.
Changing Settings Using CONSULT-II
The settings for the Intelligent Key system functions can be changed using CONSULT-II (WORK SUPPORT).
Refer to BL-116, "
WORK SUPPORT" .
NOTE:
Once a function setting is changed, it will remain effective even if the battery is disconnected.
Changing Settings Using Display Unit
The settings of the Intelligent Key system can be changed, using CONSULT-II, display unit, Intelligent Key and
door request switch in the center of the instrument panel.
NOTE:
Once a function setting is changed, it will remain effective even if the battery is disconnected.
INTELLIGENT KEY REGISTRATION
Intelligent Key-ID registration is executed using the CONSULT-II. Up to 4 can be registered.
CAUTION:

After a new Intelligent Key-ID is registered, be sure to check the function.

When registering an additional Intelligent Key-ID, take any Intelligent Keys already registered and
Intelligent Keys for any other vehicles out of the vehicle before starting.
CONSULT-II can be used to check and delete Intelligent Key-IDs.
For future information, see the CONSULT-II Operation Manual NATS.
STEERING LOCK UNIT REGISTRATION
Steering Lock Unit ID Registration
CAUTION:

The method for registering a steering lock unit ID depends on the status of the steering lock unit
and Intelligent Key unit (new or old unit).

After registration is completed, press ignition knob with a portable unit in the vehicle so that it can
be rotated, and confirm that it cannot be rotated even when ignition switch is pressed without a
portable unit in the vehicle.
For further information, see the CONSULT-II Operation Manual NATS.
Setting item Description
Intelligent Key Lock Response-Sound The sound pattern of the Intelligent Key operation can be set as desired. (Setting value:
OFF, Beeper or Horn chirp)
Intelligent Key Unlock Response-Beep
Sound The beep sound when unlocking door with the Intelligent Key operation can be turned ON
or OFF.
Intelligent Key Engine Start Function This function can be performed to ON or OFF.
Intelligent Key Lock/Unlock Function The door handle request switch lock/unlock operation with the Intelligent Key can be can-
celed or activated.
Return All Settings to Default The all settings made by VEHICLE ELECTRONICS will return to default.

BL-116
INTELLIGENT KEY SYSTEM
Revision: 2006 December 2006 FX35/FX45
CONSULT-II Functions (INTELLIGENT KEY)NIS001NG

CONSULT-II has display and inspection functions for work support, self-diagnosis, data monitor, and con-
trol unit part number by combining data reception and command transmission via communication lines
from the Intelligent Key unit.
CONSULT-II Start ProcedureNIS001NH
Refer to GI-38, "CONSULT-II Start Procedure" .
CONSULT-II Application ItemsNIS001NI
WORK SUPPORT
SELF-DIAGNOSTIC RESULTS
Part to be diagnosed Inspection Item, Diagnosis Mode Description
Intelligent Key WORK SUPPORT

Performs Intelligent Key-ID registration, check, and deletion.

Performs steering lock unit ID registration.

Changes settings for each function (ON/OFF).
SELF-DIAG RESULTS Intelligent Key unit performs CAN communication diagnosis.
DATA MONITOR Displays Intelligent Key unit input data in real time.
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can
be read.
ACTIVE TEST Sends drive signals door lock actuator, buzzer or combination meter
to perform operation check.
ECU PART NUMBER Displays Intelligent Key unit part No.
Monitor item Description
CONFIRM KEY FOB ID The Intelligent Key ID can be confirmed.
TAKE OUT FROM WINDOW WARN The condition of Intelligent Key warning function can be changed.
LOW BATT OF KEY FOB WARN The condition of low battery warning function can be changed.
I-KEY FUNCTION The condition of Intelligent Key's function can be changed.
ANSWER BACK FUNCTION The condition of answer back function can be changed.
HORN WITH KEYLESS LOCK The condition of key reminder function can be set.
SELECTIVE UNLOCK FUNCTION The condition of selective unlock function can be changed.
HAZARD ANSWER BACK The condition of key reminder function can be set.
ANSWER BACK WITH I-KEY LOCK The condition of key reminder function (LOCK) can be changed.
ANSWER BACK WITH I-KEY UNLOCK The condition of key reminder function (UNLOCK) can be changed.
AUTO RELOCK TIMER This mode is able confirm and changed auto door lock function operation time
setting.
PANIC ALARM DELAY This mode is able to confirm and change panic alarm function operation delay
time setting.
P/W DOWN DELAY This mode is able to confirm and change remote window open function.
ENGINE START BY I-KEY This mode is able to confirm and change start function ON - OFF setting.
LOCK/UNLOCK BY I-KEY The condition of lock/unlock function can be set.
LUG ROOM ENGINE START This mode is able to confirm and change operation range.
Self-diag results Description Diagnosis procedure Reference page
CAN COMM
[U1000] Malfunction is detected in CAN communication. Check CAN communication system.
BL-124
STRG COMM1
[B2013] Malfunction is detected in communication of
Intelligent Key unit and steering lock unit. Check steering lock unit.
BL-139
STRG COMM2
[B2014] Malfunction is detected in communication of
Intelligent Key unit and steering lock unit. Check steering lock unit.
BL-139

BL-118
INTELLIGENT KEY SYSTEM
Revision: 2006 December 2006 FX35/FX45
List of Operation Related PartsNIS001NJ
Parts marked with × are the parts related to operation.
Will not operate if there is a malfunction in
the area where there is a ×.
Intelligent Key
Key switch
Ignition knob switch ACC switch
Ignition switch
Door unlock sensor
Door switch
Door request switch
Inside key antenna
Out side key antenna
Intelligent Key warning buzzer Intelligent Key unit
CAN communication system
BCM
Combination meter
Steering lock unitStop lamp switch Detention switch
Passenger side select unlock relay
Door lock/unlock operation using Intelligent
Key remote controller button operation ×××××××
Door lock/unlock operation using door
request switch operation ×××××××××
Selective door unlock function using door
request switch operation ××××××× ×
Selective door unlock function using Intelli-
gent Key remote controller button opera-
tion ××× ×××
Door lock/unlock operation using mechani-
cal key ×
Ignition knob rotation permission using
Intelligent Key ××× × × × × ×
Ignition knob rotation permission using
mechanical key ×× × × ×× ×
Engine start using Intelligent Key ×× ×××××××
Engine start using mechanical key ×× × × × × ×
Key reminder door lock operation ××××××××
Selector lever reminder operation ×× ××× ×
Ignition switch return forgotten warning ××× × × × ×
Ignition key warning (when using mechani-
cal key) ××××
Ignition switch OFF position warning (for
inside car: when door closed) ×××× × × ×
Ignition switch OFF position warning (for
outside car: when door opened/closed) ×××× × ×× × ××
Warning for removal of Intelligent Key to
outside the car (when door open/closed) ××× × × ×× × × ×
Warning for removal of Intelligent Key to
outside the car (from window) ××× × × × × ×
Door lock non-operation warning ×××××××××
Intelligent key low battery warning ×× ×××

INTELLIGENT KEY SYSTEM BL-119
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Revision: 2006 December 2006 FX35/FX45
Trouble Diagnosis Symptom ChartNIS001NK
ALL FUNCTIONS OF THE INTELLIGENT KEY ARE NOT OPERATING
REMOTE CONTROL ENTRY FUNCTION MALFUNCTION
Symptom Diagnoses service procedure Refer to page
“KEY” and “P shift” warning lamps in combination
meter do not light up at all. 1.
Check Intelligent Key unit power supply and ground
circuit BL-124
2. Check CAN communication
BL-124
3. Replace Intelligent Key unitBL-146
“KEY” and “P shift” warning lamps in combination
meter turn on, but doors cannot be locked/
unlocked or the engine can not be started using
Intelligent Key. 1.
Use CONSULT-II to check if the Intelligent Key has
been registered Refer to
CONSULT-II Operation Manual
2. Use CONSULT-II setting change function to check if
Intelligent Key system has been cancelled BL-116
3. Intelligent Key battery inspection
BL-147
4. Replace Intelligent Key unitBL-146
Symptom Diagnoses service procedure Refer to page
Door lock/unlock does not operate (other func-
tions normal) when Intelligent Key remote con-
troller button is operated. 1. Check door lock/unlock setting
BL-116
2. Intelligent Key battery inspectionBL-147
3. Check door unlock sensorBL-131
4. Check door switchBL-129
5. Replace BCMBCS-15
6. Replace Intelligent Key unit BL-146
Driver side selective door unlock function does
not operate, when Intelligent Key remote control-
ler button is operated.
(All other remote control entry function is OK.) 1. Check selective door unlock setting
BL-116
2. Replace BCMBCS-15
3. Replace Intelligent Key unit BL-146
Panic alarm (horn and headlamp) do not acti-
vate, when panic alarm button is continuously
pressed.
(All other remote control entry function is OK.) 1. Check panic alarm mode
BL-116
2. Check headlamp functionBL-145
3. Check horn functionBL-145
4. Check IPDM E/R operationBL-145
5. Check key switch (Intelligent Key unit input)BL-125
6. Check ignition knob switchBL-127
7. Replace Intelligent Key unitBL-146
Hazard lamps do not flash during door lock oper-
ation using Intelligent Key remote controller but-
ton operated.
(Turn signal lamp operation is OK.)
(All other remote control entry function is OK.) 1. Check key reminder setting
BL-116
2. Replace BCMBCS-15
3. Replace Intelligent Key unit BL-146
Hazard lamps do not flash during door lock oper-
ation using Intelligent Key remote controller but-
ton operated.
(Turn signal lamps do not operate.) Check hazard function
BL-145
Intelligent Key warning buzzer does not sound
during door lock/unlock operation using Intelli-
gent Key remote controller button is operated.
(All other remote control entry function is OK.) 1.
Check if the operation confirmation Intelligent Key
warning buzzer was cancelled by the CONSULT-II set-
tings change function BL-116
2. Check Intelligent Key warning buzzer
BL-134
3. Replace Intelligent Key unitBL-146

INTELLIGENT KEY SYSTEM BL-121
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Revision: 2006 December 2006 FX35/FX45
ENGINE START FUNCTION MALFUNCTION
Intelligent Key Operation Inspection
Mechanical Key Operation Inspection
WARNING CHIME FUNCTION MALFUNCTION
Before conducting the diagnosis in the following table, check “key reminder function” with power door lock sys-
tem.
Symptom Diagnoses service procedure Refer to page
Ignition knob can not turn
KEY warning lamp on combination meter
lights up in red when ignition knob is
pressed. (door lock functions normal) 1. Intelligent Key battery inspection
BL-147
2. Check inside key antennaBL-138
3. Replace Intelligent Key unitBL-146
KEY warning lamp on combination meter
lights up in green when ignition knob is
pressed. 1. Check ignition knob switch
BL-1272. Check steering lock unitBL-139
3. Check Intelligent Key unit power supply and ground circuitBL-124
4. Replace Intelligent Key unitBL-146
Ignition knob turns even without both Intelli-
gent Key and mechanical key. Replace steering lock unit —
Security indicator will still flash when igni-
tion knob is pressed. 1. Check key switch (Intelligent Key unit input)
BL-125
2. Replace Intelligent Key unitBL-146
Security indicator does not flash with igni-
tion knob released at LOCK position. (push
switch OFF) 1. CAN communication system
BL-124
2. Ignition knob switch systemBL-127
3. Intelligent Key unit power supply and ground circuitBL-124
Starter motor does not cranking.
(Ignition knob can turn) 1. Check detention switch
BL-1422. Check stop lamp switchBL-141
3. Replace Intelligent Key unitBL-146
Symptom Diagnoses service procedure Refer to page
Ignition knob can not turn
Security indicator remains flashing with
mechanical key inserted. 1. Check key switch (BCM input)
BL-126
2. Replace Intelligent Key unitBL-146
KEY indicator and security indicator does
not flashing with mechanical key inserted. 1. Check stop lamp switch
BL-141
2. Replace Intelligent Key unitBL-146
Starter motor does not cranking.
(Ignition knob can turn) 1. Check detention switch
BL-1422. Check stop lamp switchBL-141
3. Replace Intelligent Key unitBL-146
Symptom Diagnoses service procedure Refer to page
Ignition key warning chime is inoperative.
(When mechanical key used) 1. Check CAN communication
BL-124
2. Check key switch (Intelligent Key unit input)BL-125
3. Check door switchBL-129
4. Inspect combination meter (warning) DI-5
5. Replace Intelligent Key unitBL-146
Ignition knob OFF position warning
chime (for inside vehicle) does not
sound.
(Ignition key warning chime operates) 1. Check CAN communication
BL-1242. Check ignition knob switchBL-127
3. Check key switch (Intelligent Key unit input)BL-125
4. Replace Intelligent Key unitBL-146

BL-206
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 December 2006 FX35/FX45
System DescriptionNIS001PL
DESCRIPTION
IVIS (Infiniti Vehicle Immobilizer System – NATS) has the following immobilizer functions:

Engine immobilizer shows high anti-theft performance to prevent engine start by other than the owner
(registered key: ignition key, mechanical key and Intelligent Key).

Only a key with key ID registered in BCM and ECM can start engine, and shows high anti-theft perfor-
mance to prevent key from being copied or stolen.

In the vehicle without Intelligent Key system, security indicator always flashes with other than ignition
switch ON or START position.

In the vehicle with Intelligent Key system, security indicator always flashes with mechanical key removed
condition (key switch OFF) and ignition knob released condition on LOCK position (ignition knob switch
OFF).

Therefore, IVIS (NATS) warns outsiders that the vehicle is equipped with the anti-theft system.

If system detects malfunction, it turns on security indicator in ignition switch ON position.

If the owner requires, mechanical key ID can be registered for up to 5 keys.

During trouble diagnosis or when the following parts have been replaced, and if ignition key or mechanical
key is added, registration* is required.
*: All keys kept by the owner of the vehicle should be registered with ignition key or mechanical key.
–ECM
–BCM
–Ignition key (models without Intelligent Key system)
–Mechanical key (models with Intelligent Key system)

IVIS (NATS) trouble diagnoses, system initialization and additional registration of other IVIS (NATS) igni-
tion key or mechanical key IDs must be carried out using CONSULT-II hardware and CONSULT-II IVIS
(NATS) software. When IVIS (NATS) initialization has been completed, the ID of the inserted ignition key
or mechanical key or mechanical key IDs can be carried out.
Regarding the procedures of IVIS (NATS) initialization and ignition key or mechanical key ID registration,
refer to CONSULT-II operation manual, NATS-IVIS/NVIS.
SECURITY INDICATOR

Warns that the vehicle has IVIS (NATS).

In the vehicle without Intelligent Key system, security indicator always flashes with other than ignition
switch ON or START position. In the vehicle with Intelligent Key system, security indicator always flashes
with mechanical key removed condition (key switch OFF) and ignition knob released condition on LOCK
position (ignition knob switch OFF).
NOTE:
Because security indicator is highly efficient, the battery is barely affected.
Condition of Security Indicator
WITHOUT INTELLIGENT KEY SYSTEM
WITH INTELLIGENT KEY SYSTEM

In ignition knob operation with Intelligent Key, it always turns on with pushing ignition knob, and always
flashes with ignition knob released (ignition knob switch OFF) condition on ignition knob “LOCK” position.

In ignition knob operation with mechanical key, it turns off on the condition that mechanical key is inserted
in key cylinder, and always flashes with ignition knob released (ignition knob switch OFF) condition on
mechanical key removed condition.
Security indicator
condition Ignition key
Operation or condition of ignition key
Ignition switch: ON position Ignition switch:
ACC position Ignition switch:
OFF position
(Key is inserted.) Ignition switch:
OFF position
(Remove key.)
Register key OFF Flashing Flashing Flashing
Ignition key not
registered ON Flashing Flashing Flashing

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-207
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Revision: 2006 December 2006 FX35/FX45
System CompositionNIS001PM
The immobilizer function of the IVIS (NATS) consists of the following:

Ignition key (models without Intelligent Key system)

Mechanical key (models with Intelligent Key system)

NATS antenna amp.

Steering lock unit. (models with Intelligent Key system)

BCM

Intelligent Key unit (models with Intelligent Key system)

Engine control module (ECM)

Security indicator
NOTE:
The communication between ECM, BCM and/or Intelligent Key unit uses the CAN communication sys-
tem.
ECM Re-Communicating FunctionNIS001PN
Performing following procedure can automatically perform re-communication of ECM and BCM or Intelligent
Key unit, but only when the ECM has been replaced with a new one (*1).
*1: New one means a virgin ECM 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.
1. Install ECM.
2. Using a registered key (*2), turn ignition switch to “ON”. *2: To perform this step, use the key that has been used before performing ECM replacement.
3. Maintain ignition switch in “ON” position for at least 5 seconds.
4. Turn ignition switch to “OFF”.
5. 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.
PIIA6948E

BL-214
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 December 2006 FX35/FX45
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-215
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Revision: 2006 December 2006 FX35/FX45
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-218, "
Diagnostic
Procedure 1" .
CHAIN OF ECM-IMMU P1612 Communication impossible between
ECM and BCM. Refer to
BL-219, "
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-220, "
Diagnostic
Procedure 3" .
CHAIN OF IMMU-KEY P1614 BCM cannot receive the key ID signal. Refer to
BL-223, "
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-221, "
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-222, "
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-216, "
WORK
FLOW" .

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-217
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Revision: 2006 December 2006 FX35/FX45
Trouble Diagnosis Symptom ChartNIS001PU
*: When IVIS (NATS) detects trouble, the security indicator lights up while electronic key is in the “ON” position.
Security Indicator InspectionNIS001PV
*: 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-218, "
Diag-
nostic Procedure 1" . ECM
CHAIN OF ECM-IMMU [P1612] Refer to
BL-219, "
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-220, "
Diag-
nostic Procedure 3" . Unregistered key
NATS IMMU
CHAIN OF IMMU-KEY
[P1614] Refer to
BL-223, "
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-221, "
Diag-
nostic Procedure 4"
System initialization has not yet been completed.
ECM
LOCK MODE [P1610] Refer to
BL-222, "
Diag-
nostic Procedure 5" . LOCK MODE

MIL staying ON

Security indicator
lighting up* DON'T ERASE
BEFORE CHECKING
ENG DIAG Refer to
BL-216, "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-225, "
Diagnostic
Procedure 7" .
Open circuit between Fuse and BCM (NATS
IMMU)
Continuation of initialization mode
BCM (NATS IMMU)