Mechanical INFINITI FX35 2006 Owner's Manual

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

INTELLIGENT KEY SYSTEM BL-125
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Revision: 2006 December 2006 FX35/FX45
Check Key Switch (Intelligent Key Unit Input)NIS001NN
1. CHECK KEY SWITCH
With CONSULT-II
Display “KEY SW” on DATA MONITOR screen, and check if ON-
OFF display is linked to insertion of mechanical key in ignition knob.
OK or NG
OK >> Key switch is OK.
NG >> GO TO 2.
2. CHECK KEY SWITCH POWER SUPPLY CIRCUIT
1. Remove mechanical key from ignition knob.
2. Disconnect key switch and ignition knob switch connector.
3. Check voltage between key switch and ignition knob switch connector M22 terminal 3 (L/R) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace key switch power supply circuit.
3. CHECK KEY SWITCH OPERATION
Check continuity between key switch and ignition knob switch terminals 3 and 4.
OK or NG
OK >> GO TO 4.
NG >> Replace key switch. When key is inserted in ignition knob : ON
When key is removed in ignition knob : OFF
PIIB1359E
3 (L/R) - Ground : Battery voltage
PIIA6738E
Terminals Condition Continuity
34 Key is inserted in ignition key cylinder. Yes
Key is removed from ignition key cylinder. No
PIIA6140E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-205
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Revision: 2006 December 2006 FX35/FX45
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)PFP:28591
Component Parts and Harness Connector LocationNIS001PK
NOTE:
If customer reports a “NO START” condition, request ALL ignition key (without intelligent key system) or
mechanical key (with intelligent key system) to be brought to the dealer to check for a NATS malfunction.
PIIA6649E

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

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-211
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Revision: 2006 December 2006 FX35/FX45
Terminals and Reference Value for Steering Lock Unit/with Intelligent Key Sys-
tem
NIS001PP
Terminals and Reference Value for Intelligent Key Unit/with Intelligent Key Sys-
tem
NIS001PQ
Te r -
minal Wire
color Signal Designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1 L/R Power source (Fuse) Input LOCK — Battery voltage
2R/W Steering lock unit
power supply Input LOCK — 5
3R/B Steering lock unit com-
munication signal Input LOCK Press ignition knob with Intel-
ligent Key inside vehicle.
Other than the above 5
4Y/B Steering lock unit
ground —— — 0
SIIA1911J
Te r -
minal Wire
color Signal designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1R/W Steering lock unit power
supply Output LOCK — 5
2 L CAN-H Input/
Output —— —
3 P CAN-L Input/
Output —— —
6W Ignition power supply
(ON) Input ONIgnition knob ON or START
position Battery voltage
7 B/W Key switch Input LOCK Insert mechanical key into
ignition key cylinder. Battery voltage
Remove mechanical key
from ignition key cylinder. 0
11 L/R Power source (Fuse) Input — — Battery voltage
12 B Ground — — — 0
27 L/W Ignition knob switch Input — 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 Output LOCK Press ignition knob with
Intelligent Key inside vehi-
cle.
Other than the above 5
SIIA1911J

BL-212
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 December 2006 FX35/FX45
Terminals and Reference Value for BCMNIS001PR
*: With Intelligent Key system Te r -
minal Wire
color Signal designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
21 G/B NATS antenna amp. Input/
Output —
Ignition knob OFF
→ ON
position Tester pointer should move just
after turning ignition knob “ON”
23 G/OR Security indicator lamp Output LOCK Goes OFF
→ illuminates
(Every 2.4 seconds) Battery voltage
→ 0
25 BR NATS antenna amp. Input/
Output —Ignition knob or switch OFF
→ ON position Tester pointer should move just
after turning ignition knob “ON”
37* B/W Key switch Input — Insert mechanical key into
ignition key cylinder Battery voltage
Remove mechanical key
from ignition key cylinder 0
38 W/L Ignition power supply
(ON) Input ONIgnition knob ON or START
position Battery voltage
39 L CAN-H Input/
Output —— —
40 P CAN-L Input/
Output —— —
42 L/R Power source (Fuse) Input — — Battery voltage
49 B Ground — — — 0
52 B Ground — — — 0
55 G Power source (Fuse) Input — — Battery voltage

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-221
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Revision: 2006 December 2006 FX35/FX45
2. PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II. Re-register all ignition key or mechanical key IDs.
For initialization and registration of ignition key or mechanical key IDs, refer to “CONSULT-II Operation Manual
NATS-IVIS/NVIS”.
NOTE:
If the initialization is not completed or malfunction, CONSULT-II
shows message on the screen.
Can the system be initialized and can the engine be started with re-
registered ignition key or mechanical key?
YES >> Ignition key ID was unregistered.
NO >> BCM is malfunctioning.

Replace BCM.

Perform initialization with CONSULT-II.

For initialization, refer to “CONSULT-II Operation
Manual NATS-IVIS/NVIS”.
Diagnostic Procedure 4NIS001PZ
Self-diagnostic results:
“ID DISCORD, IMM-ECM” is displayed on CONSULT-II screen
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm that SELF-DIAGNOSTIC RESULTS “ID DISCORD, IMM-ECM” is displayed on CONSULT-II screen.
NOTE:
“ID DISCORD IMM-ECM”:
Registered ID of BCM is in discord with that of ECM.
Does CONSULT-II screen display as shown in figure?
YES >> GO TO 2.
NO >> GO TO BL-217, "
Trouble Diagnosis Symptom Chart" .
2. PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II. Re-register all ignition key or mechanical key IDs.
For initialization, refer to “CONSULT-II Operation Manual NATS-
IVIS/NVIS”.
NOTE:
If the initialization is not completed or malfunction, CONSULT-II
shows message on the screen.
Can the system be initialized?
YES >> Start engine. (END)

System initialization had not been completed.
NO >> ECM is malfunctioning.

Replace ECM.

Perform initialization or re-communicating function.
–For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”.
–For re-communicating function, refer to BL-207, "ECM Re-Communicating Function" .
SEL297W
PIIA1262E
SEL297W

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-223
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Revision: 2006 December 2006 FX35/FX45
4. PERFORM INITIALIZATION WITH CONSULT-II AGAIN
1. Replace BCM.
2. Perform initialization with CONSULT-II. For initialization, refer to “CONSULT-II Operation Manual NATS-
IVIS/NVIS”.
NOTE:
If the initialization is not completed or malfunctions, CONSULT-II
shows the message on the screen.
Can the system be initialized?
YES >> System is OK. BCM is malfunctioning.

Replace BCM.

Perform initialization with CONSULT-II.

For initialization, refer to “CONSULT-II Operation
Manual NATS-IVIS/NVIS”.
NO >> ECM is malfunctioning.

Replace ECM.

Perform initialization or re-communicating function.
–For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”.
–For re-communicating function, refer to BL-207, "ECM Re-Communicating Function" .
Diagnostic Procedure 6NIS001Q1
Self-diagnostic results:
“CHAIN OF IMMU-KEY” is displayed on CONSULT-II screen
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm self-diagnostic results “CHAIN OF IMMU-KEY” is displayed on CONSULT-II screen.
Does CONSULT-II screen display as shown?
YES >> GO TO 2.
NO >> GO TO BL-217, "
Trouble Diagnosis Symptom Chart" .
2. CHECK NATS ANTENNA AMP. INSTALLATION
Check NATS antenna amp. installation. Refer to BL-226, "
Removal and Installation NATS Antenna Amp." .
OK or NG
OK >> GO TO 3.
NG >> Reinstall NATS antenna amp. correctly.
3. CHECK KEY ID CHIP
Start engine with another registered ignition key or mechanical key.
Does the engine start?
YES >> Ignition key or mechanical key ID chip is malfunctioning.

Replace the ignition key or mechanical key.

Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Manual NATS–IVIS/NVIS”.
NO >> GO TO 4.
SEL297W