immobilizer INFINITI FX35 2006 Owner's Manual

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

BL-222
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 December 2006 FX35/FX45
Diagnostic Procedure 5NIS001Q0
Self-diagnostic results:
“LOCK MODE” displayed on CONSULT-II screen
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “LOCK MODE” is displayed
on CONSULT-II screen.
Does CONSULT-II screen display as shown in figure?
YES >> GO TO 2.
NO >> GO TO BL-217, "
Trouble Diagnosis Symptom Chart" .
2. ESCAPE FROM LOCK MODE
1. Turn ignition switch OFF.
2. Turn ignition switch ON with registered key. (Do not start engine.) Wait 5 seconds.
3. Return the key to OFF position. Wait 5 seconds.
4. Repeat steps 2 and 3 twice (total of three cycles).
5. Start the engine.
Does engine start?
YES >> System is OK (Now system is escaped from “LOCK MODE”).
NO >> GO TO 3.
3. PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Manual NATS-
IVIS/NVIS”.
NOTE:
If the initialization is not completed or malfunction, CONSULT-II
shows the message on the screen.
Can the system be initialized?
YES >> System is OK.
NO >> GO TO 4.
PIIA1264E
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

BL-224
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 December 2006 FX35/FX45
4. CHECK POWER SUPPLY FOR NATS ANTENNA AMP.
Check voltage between NATS antenna amp. connector M25 terminal 1 (L/R) and ground with CONSULT-II or
tester.
OK or NG
OK >> GO TO 5.
NG >> Check harness for open or short between NATS antenna amp. and fuse.
5. CHECK NATS ANTENNA AMP. SIGNAL LINE- 1
Check voltage between NATS antenna amp. connector M25 terminal 2 (G/B) and ground with analogue tester.
OK or NG
OK >> GO TO 6.
NG >>

Check harness for open or short between NATS
antenna amp. and BCM.
NOTE:
If harness is OK, replace BCM, perform initialization
with CONSULT-II. For initialization, refer to “CONSULT-II Operation Manual NATS–IVIS/NVIS”.
6. CHECK NATS ANTENNA AMP. SIGNAL LINE- 2
Check voltage between NATS antenna amp. connector M25 terminal 4 (BR) and ground with analogue tester.
OK or NG
OK >> GO TO 7.
NG >>

Check harness for open or short between NATS
antenna amp. and BCM.
NOTE:
If harness is OK, replace BCM, perform initialization
with CONSULT-II. For initialization, refer to “CONSULT-II Operation Manual NATS–IVIS/NVIS”.
1 (L/R) – Ground : Battery voltage
PIIA6145E
Before inserting mechanical key in ignition knob
Voltage: 0V
Just after inserting mechanical key in ignition knob : Pointer of tester should move.
PIIA6146E
Before inserting mechanical key in ignition knob Voltage: 0V
Just after inserting mechanical key in ignition knob : Pointer of tester should move.
PIIA6147E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-225
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Revision: 2006 December 2006 FX35/FX45
7. CHECK NATS ANTENNA AMP. GROUND LINE CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between NATS antenna amp. connector M25 terminal 3 (B) and ground.
OK or NG
OK >> NATS antenna amp. is malfunctioning.
NG >>

Check harness for open or short between NATS
antenna amp. and ground.
NOTE:
If harness is OK, replace BCM, perform initialization
with CONSULT-II. For initialization, refer to “CON-
SULT-II Operation Manual NATS–IVIS/NVIS”.
Diagnostic Procedure 7NIS001Q2
“SECURITY INDICATOR LAMP DOES NOT LIGHT UP”
1. CHECK FUSE

Check 10A fuse [No.19, located in the fuse block (J/B)]
NOTE:
Refer to BL-205, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> Replace fuse.
2. CHECK SECURITY INDICATOR LAMP
1. Install 10A fuse [No.19, located in the fuse block (J/B)]
2. Start engine and turn ignition switch OFF.
3. Check the security indicator lamp lights up.
OK or NG
OK >> Inspection END.
NG >> GO TO 3.
3. CHECK SECURITY INDICATOR LAMP POWER SUPPLY CIRCUIT
1. Disconnect security indicator lamp connector.
2. Check voltage between security indicator lamp connector M38 terminal 1 (R/W) and ground.
OK or NG
OK >> GO TO 4.
NG >> Check harness for open or short between fuse and security indicator lamp.
3 (B) – Ground : Continuity should exist.
PIIA6148E
Security indicator lamp should light up.
1 (R/W) – Ground : Battery voltage
PIIA6149E

BL-226
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 December 2006 FX35/FX45
4. CHECK BCM FUNCTION
1. Connect security indicator lamp connector.
2. Disconnect BCM connector M3.
3. Check voltage between BCM connector M3 terminal 23 (G/OR) and ground.
OK or NG
OK >> BCM is malfunctioning.

Replace BCM.

Perform initialization with CONSULT-II.

For initialization, refer to “CONSULT-II Operation
Manual NATS-IVIS/NVIS”.
NG >> Check the following.

Harness for open or short between security indicator lamp and BCM.

Indicator lamp condition
Removal and Installation NATS Antenna Amp.NIS001Q3
REMOVAL
CAUTION:
Before servicing SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
1. Remove the steering column cover. Refer to IP-11, "
Removal and Installation" .
2. Disconnect the NATS antenna amp. connect, remove the screw and NATS antenna amp.
INSTALLATION
Install in the reverse order of removal. 23 (G/OR) – Ground : Battery voltage
PIIA6150E
PIIA6064E

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTION EC
A
EC
Revision: 2006 December 2006 FX35/FX45
ENGINE CONTROL SYSTEM
VQ35DE
INDEX FOR DTC ................................................... ... 15
DTC No. Index .................................................... ... 15
Alphabetical Index ............................................... ... 19
PRECAUTIONS ..................................................... ... 23
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ... 23
On Board Diagnostic (OBD) System of Engine and
A/T ....................................................................... ... 23
Precaution ........................................................... ... 23
PREPARATION ...................................................... ... 27
Special Service Tools .......................................... ... 27
Commercial Service Tools ................................... ... 29
ENGINE CONTROL SYSTEM ............................... ... 30
System Diagram .................................................. ... 30
Multiport Fuel Injection (MFI) System ................. ... 31
Electronic Ignition (EI) System ............................ ... 33
Fuel Cut Control (at No Load and High Engine
Speed) ................................................................. ... 34
AIR CONDITIONING CUT CONTROL .................. ... 35
Input/Output Signal Chart .................................... ... 35
System Description ............................................. ... 35
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ... 36
System Description ............................................. ... 36
Component Description ....................................... ... 37
CAN COMMUNICATION ....................................... ... 38
System Description ............................................. ... 38
EVAPORATIVE EMISSION SYSTEM .................... ... 39
Description .......................................................... ... 39
Component Inspection ........................................ ... 42
Removal and Installation ..................................... ... 43
How to Detect Fuel Vapor Leakage .................... ... 43
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ................................................................... ... 46
System Description ............................................. ... 46
Diagnostic Procedure .......................................... ... 47
Component Inspection ........................................ ... 49 POSITIVE CRANKCASE VENTILATION ..............
... 51
Description ........................................................... ... 51
Component Inspection ......................................... ... 51
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ..................................................................... ... 53
Description ........................................................... ... 53
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......... ... 54
Introduction .......................................................... ... 54
Two Trip Detection Logic ..................................... ... 54
Emission-Related Diagnostic Information ............ ... 55
Malfunction Indicator Lamp (MIL) ........................ ... 68
OBD System Operation Chart ............................. ... 72
BASIC SERVICE PROCEDURE ............................ ... 77
Basic Inspection .................................................. ... 77
Idle Speed and Ignition Timing Check ................. ... 82
VIN Registration .................................................. ... 83
Accelerator Pedal Released Position Learning ... ... 84
Throttle Valve Closed Position Learning .............. ... 84
Idle Air Volume Learning ..................................... ... 84
Fuel Pressure Check ........................................... ... 86
TROUBLE DIAGNOSIS ......................................... ... 88
Trouble Diagnosis Introduction ............................ ... 88
DTC Inspection Priority Chart .............................. ... 94
Fail-Safe Chart .................................................... ... 96
Symptom Matrix Chart ......................................... ... 97
Engine Control Component Parts Location ......... .101
Vacuum Hose Drawing ........................................ .107
Circuit Diagram .................................................... .108
ECM Harness Connector Terminal Layout .......... .110
ECM Terminals and Reference Value .................. .110
CONSULT-II Function (ENGINE) ......................... .119
Generic Scan Tool (GST) Function ...................... .130
CONSULT-II Reference Value in Data Monitor .... .133
Major Sensor Reference Graph in Data Monitor
Mode .................................................................... .136
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .138
Description ........................................................... .138
Testing Condition ................................................. .138
Inspection Procedure ........................................... .138
Diagnostic Procedure .......................................... .139

EC-8Revision: 2006 December 2006 FX35/FX45
PREPARATION ......................................................
.688
Special Service Tools .......................................... .688
Commercial Service Tools ................................... .689
ENGINE CONTROL SYSTEM ............................... .690
System Diagram .................................................. .690
Multiport Fuel Injection (MFI) System .................. .691
Electronic Ignition (EI) System ............................ .693
Fuel Cut Control (at No Load and High Engine
Speed) ................................................................. .694
AIR CONDITIONING CUT CONTROL ................... .695
Input/Output Signal Chart .................................... .695
System Description .............................................. .695
AUTOMATIC SPEED CONTROL DEVICE (ASCD) .696
System Description .............................................. .696
Component Description ....................................... .697
CAN COMMUNICATION ........................................ .698
System Description .............................................. .698
EVAPORATIVE EMISSION SYSTEM .................... .699
Description ........................................................... .699
Component Inspection ......................................... .702
Removal and Installation ..................................... .703
How to Detect Fuel Vapor Leakage ..................... .703
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ................................................................... .706
System Description .............................................. .706
Diagnostic Procedure .......................................... .707
Component Inspection ......................................... .709
POSITIVE CRANKCASE VENTILATION .............. .711
Description ........................................................... .711
Component Inspection ......................................... .711
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ..................................................................... .713
Description ........................................................... .713
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......... .714
Introduction .......................................................... .714
Two Trip Detection Logic ..................................... .714
Emission-related Diagnostic Information ............. .715
Malfunction Indicator Lamp (MIL) ........................ .729
OBD System Operation Chart ............................. .731
BASIC SERVICE PROCEDURE ............................ .737
Basic Inspection .................................................. .737
Idle Speed and Ignition Timing Check ................. .742
VIN Registration .................................................. .743
Accelerator Pedal Released Position Learning ... .743
Throttle Valve Closed Position Learning .............. .744
Idle Air Volume Learning ..................................... .744
Fuel Pressure Check ........................................... .746
TROUBLE DIAGNOSIS ......................................... .748
Trouble Diagnosis Introduction ............................ .748
DTC Inspection Priority Chart .............................. .754
Fail-Safe Chart .................................................... .756
Symptom Matrix Chart ......................................... .757
Engine Control Component Parts Location ......... .761
Vacuum Hose Drawing ........................................ .768
Circuit Diagram .................................................... .769
ECM Harness Connector Terminal Layout .......... .771
ECM Terminals and Reference Value .................. .771
CONSULT-II Function (ENGINE) ......................... .780
Generic Scan Tool (GST) Function ...................... .792 CONSULT-II Reference Value in Data Monitor ....
.795
Major Sensor Reference Graph in Data Monitor
Mode .................................................................... .799
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .801
Description ........................................................... .801
Testing Condition ................................................. .801
Inspection Procedure ........................................... .801
Diagnostic Procedure ........................................... .802
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT ...................................................................... .811
Description ........................................................... .811
Diagnostic Procedure ........................................... .811
POWER SUPPLY AND GROUND CIRCUIT .......... .812
Wiring Diagram .................................................... .812
Diagnostic Procedure ........................................... .813
Ground Inspection ................................................ .818
DTC U1000, U1001 CAN COMMUNICATION LINE .819
Description ........................................................... .819
On Board Diagnosis Logic ................................... .819
DTC Confirmation Procedure ............................... .819
Wiring Diagram .................................................... .820
Diagnostic Procedure ........................................... .821
DTC U1010 CAN COMMUNICATION .................... .822
Description ........................................................... .822
On Board Diagnosis Logic ................................... .822
DTC Confirmation Procedure ............................... .822
Diagnostic Procedure ........................................... .823
DTC P0011, P0021 IVT CONTROL ........................ .824
Description ........................................................... .824
CONSULT-II Reference Value in Data Monitor Mode .825
On Board Diagnosis Logic ................................... .825
DTC Confirmation Procedure ............................... .826
Wiring Diagram .................................................... .827
Diagnostic Procedure ........................................... .830
Component Inspection ......................................... .834
Removal and Installation ...................................... .835
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1
HEATER .................................................................. .836
Description ........................................................... .836
CONSULT-II Reference Value in Data Monitor Mode .836
On Board Diagnosis Logic ................................... .836
DTC Confirmation Procedure ............................... .836
Wiring Diagram .................................................... .837
Diagnostic Procedure ........................................... .840
Component Inspection ......................................... .842
Removal and Installation ...................................... .842
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER .843
Description ........................................................... .843
CONSULT-II Reference Value in Data Monitor Mode .843
On Board Diagnosis Logic ................................... .843
DTC Confirmation Procedure ............................... .844
Wiring Diagram .................................................... .845
Diagnostic Procedure ........................................... .848
Component Inspection ......................................... .850
Removal and Installation ...................................... .850
DTC P0075, P0081 IVT CONTROL SOLENOID

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) EC-53
[VQ35DE]
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Revision: 2006 December 2006 FX35/FX45
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)PFP:28591
DescriptionNBS003LJ

If the security indicator lights up with the ignition switch in
the ON position or “NATS MALFUNCTION” is displayed on
“SELF-DIAG RESULTS” screen, perform self-diagnostic
results mode with CONSULT-II using NATS program card.
Refer to BL-205, "
IVIS (INFINITI VEHICLE IMMOBILIZER
SYSTEM-NATS)" .

Confirm no self-diagnostic results of IVIS (NATS) is dis-
played before touching “ERASE” in “SELF-DIAG RESULTS”
mode with CONSULT-II.

When replacing ECM, initialization of IVIS (NATS) system
and registration of all IVIS (NATS) ignition key IDs must be
carried out with CONSULT-II using NATS program card.
Therefore, be sure to receive all keys from vehicle owner. Regarding the procedures of IVIS (NATS)
initialization and all IVIS (NATS) ignition key ID registration, refer to CONSULT-II Operation Manual,
IVIS/NVIS.
SEF543X

BASIC SERVICE PROCEDURE EC-79
[VQ35DE]
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Revision: 2006 December 2006 FX35/FX45
6. PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-84, "
Idle Air Volume Learning" .
Is Idle Air Volume Learning carried out successfully?
Ye s o r N o
Ye s > > G O T O 7 .
No >> 1. Follow the instruction of Idle Air Volume Learning.
2. GO TO 4.
7. CHECK TARGET IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Read idle speed in “DATA MONITOR” mode with CONSULT-II. Refer to EC-82, "
IDLE SPEED" .
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed. Refer to EC-82, "
IDLE SPEED" .
OK or NG
OK >> GO TO 10.
NG >> GO TO 8.
8. DETECT MALFUNCTIONING PART
Check the following.

Check camshaft position sensor (PHASE) and circuit.
Refer to EC-368, "
DTC P0340, P0345 CMP SENSOR (PHASE)" .

Check crankshaft position sensor (POS) and circuit.
Refer to EC-361, "
DTC P0335 CKP SENSOR (POS)" .
OK or NG
OK >> GO TO 9.
NG >> 1. Repair or replace.
2. GO TO 4.
9. CHECK ECM FUNCTION
1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but this is a rare case.)
2. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs. Refer to BL-205, "
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)" .
>> GO TO 4.
650
± 50 rpm (in P or N position)
650 ± 50 rpm (in P or N position)
SEF174Y