2008 INFINITI FX35 immobilizer

BL-198
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
“LOCK MODE” displayed on CONSULT-III screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “LOCK MO DE” is displayed on CONSULT-III screen.
Does CONSULT-III screen disp lay as shown in figure?
YES >> GO TO 2.
NO >> Refer to BL-195, "
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-III
Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
NOTE:
If the initialization is not completed or malf unction, CONSULT-III shows the message on the screen.
Can the system be initialized?
YES >> System is OK.
NO >> GO TO 4.
4.PERFORM INITIALIZATION WITH CONSULT-III AGAIN
1. Replace BCM.
2. Perform initialization with CONSULT-III. For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
NOTE:
If the initialization is not completed or malf unctions, CONSULT-III shows the message on the screen.
Can the system be initialized?
YES >> System is OK. BCM is malfunctioning.  Replace BCM.
 Perform initialization with CONSULT-III.
 For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
NO >> ECM is malfunctioning.  Replace ECM.
 Perform initialization or re-communicating function.
- For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
- For re-communicating function, refer to BL-187, "
ECM Re-Communicating Function".
Diagnosis Procedure 5INFOID:0000000001327938
Self-diagnostic results:
“CHAIN OF IMMU-KEY” is displayed on CONSULT-III screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm self-diagnostic results “CHAIN OF IM MU-KEY” is displayed on CONSULT-III screen.
Does CONSULT-III screen display as shown?
YES >> GO TO 2.
NO >> Refer to BL-195, "
Trouble Diagnosis Symptom Chart".
2.CHECK NATS ANTENNA AMP. INSTALLATION
Check NATS antenna amp. installation. Refer to BL-201, "
Removal and Installation NATS Antenna Amp".
OK or NG
OK >> GO TO 3.
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-199
< SERVICE INFORMATION >
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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-III.
For initialization, refer to “CONSULT -III Operation Manual NATS–IVIS/NVIS”.
NO >> GO TO 4.
4.CHECK POWER SUPPLY FOR NATS ANTENNA AMP.
Check voltage between NATS antenna amp. connector M25 terminal 1 (L/R) and ground with CONSULT-III 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-III. For initialization, refer to “CONSULT-III Operation Manual NATS–IVIS/NVIS”.
6.CHECK NATS ANTENNA AMP. SIGNAL LINE- 2
Check voltage between NATS antenna amp. connector M 25 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-III. For initialization, refer to “CONSULT-III Operation Manual NATS–IVIS/NVIS”.
1 (L/R) – Ground : Battery voltage
PIIA6145E
Before inserting mechani
cal key in ignition knob
Voltage: 0V
Just after inserting mechanical key in ignition knob : Pointer of tester should move.
PIIA6146E
Before inserting mechani cal key in ignition knob
Voltage: 0V
Just after inserting mechanical key in ignition knob : Pointer of tester should move.
PIIA6147E
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BL-200
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
7.CHECK NATS ANTENNA AMP. GROUND LINE CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between NATS antenna am p. 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-III. For initialization, refer to “CON-
SULT-III Operation Manual NATS–IVIS/NVIS”.
Diagnosis Procedure 6INFOID:0000000001327939
“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-185, "
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 LA MP 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.
4.CHECK BCM FUNCTION
1. Connect security indicator lamp connector.
2. Disconnect BCM connector M3. 3 (B) – Ground : Continuity should exist.
PIIA6148E
Security indicator lamp should light up.
1 (R/W) – Ground : Battery voltage
PIIA6149E
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-201
< SERVICE INFORMATION >
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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-III.
 For initialization, refer to “CONSULT-III OperationManual NATS-IVIS/NVIS”.
NG >> Check the following.  Harness for open or short between security indicator lamp and BCM.
 Indicator lamp condition
Removal and Installa tion NATS Antenna AmpINFOID:0000000001327940
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
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EC-1
ENGINE
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CONTENTS
ENGINE CONTROL SYSTEM
VQ35DE
SERVICE INFORMATION .. .........................
17
INDEX FOR DTC ............................................ ....17
DTC No. Index .................................................... ....17
Alphabetical Index ...................................................20
PRECAUTIONS ..................................................25
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
25
Precaution for Procedure without Cowl Top Cover ....25
On Board Diagnosis (OBD) System of Engine and
A/T ...........................................................................
25
Precaution ...............................................................26
PREPARATION ..................................................29
Special Service Tool ........................................... ....29
Commercial Service Tool ........................................30
ENGINE CONTROL SYSTEM ............................31
Schematic ........................................................... ....31
Multiport Fuel Injection (MFI) System .....................31
Electronic Ignition (EI) System ................................34
Fuel Cut Control (at No Load and High Engine
Speed) .....................................................................
34
AIR CONDITIONING CUT CONTROL ...............36
Input/Output Signal Chart .................................... ....36
System Description .................................................36
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) ...............................................................
37
System Description ............................................. ....37
Component Description ...........................................38
CAN COMMUNICATION ....................................39
System Description ............................................. ....39
EVAPORATIVE EMISSION SYSTEM ................40
Description .......................................................... ....40
Component Inspection ......................................... ....42
Removal and Installation .........................................44
How to Detect Fuel Vapor Leakage .........................44
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) ......................................................
46
System Description ..................................................46
Diagnosis Procedure ...............................................46
Component Inspection .............................................48
POSITIVE CRANKCASE VENTILATION .........51
Description ...............................................................51
Component Inspection .............................................51
IVIS (INFINITI VEHICLE IMMOBILIZER SYS-
TEM-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) ............................71
OBD System Operation Chart .................................74
BASIC SERVICE PROCEDURE .......................80
Basic Inspection ......................................................80
Idle Speed and Ignition Timing Check .....................84
Procedure After Replacing ECM .............................84
VIN Registration ......................................................84
Accelerator Pedal Released Position Learning .......85
Throttle Valve Closed Position Learning .................85
Idle Air Volume Learning .........................................85
Fuel Pressure Check ...............................................87
TROUBLE DIAGNOSIS ....................................89
Trouble Diagnosis Introduction ................................89
DTC Inspection Priority Chart ..................................93
Fail-Safe Chart ........................................................95
Symptom Matrix Chart .............................................96
Engine Control Component Parts Location ...........100
Vacuum Hose Drawing ..........................................106
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EC-9
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Removal and Installation .....................................
..
622
How to Detect Fuel Vapor Leakage ......................622
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) .....................................................
624
System Description ............................................. ..624
Diagnosis Procedure .............................................624
Component Inspection ..........................................626
POSITIVE CRANKCASE VENTILATION ........629
Description .......................................................... ..629
Component Inspection ..........................................629
IVIS (INFINITI VEHICLE IMMOBILIZER SYS-
TEM-NATS) ......................................................
631
Description .......................................................... ..631
ON BOARD DIAGNOSTIC (OBD) SYSTEM ....632
Introduction ......................................................... ..632
Two Trip Detection Logic ......................................632
Emission-related Diagnostic Information ...............633
Malfunction Indicator Lamp (MIL) ..........................649
OBD System Operation Chart ...............................652
BASIC SERVICE PROCEDURE ......................658
Basic Inspection .................................................. ..658
Idle Speed and Ignition Timing Check ..................661
Procedure After Replacing ECM ...........................662
VIN Registration ....................................................662
Accelerator Pedal Released Position Learning .....662
Throttle Valve Closed Position Learning ...............663
Idle Air Volume Learning .......................................663
Fuel Pressure Check .............................................665
TROUBLE DIAGNOSIS ...................................666
Trouble Diagnosis Introduction ........................... ..666
DTC Inspection Priority Chart ...............................670
Fail-Safe Chart ......................................................671
Symptom Matrix Chart ..........................................673
Engine Control Component Parts Location ...........677
Vacuum Hose Drawing .........................................684
Circuit Diagram .....................................................685
ECM Harness Connector Terminal Layout ...........687
ECM Terminal and Reference Value ....................687
CONSULT-III Function (ENGINE) .........................695
Generic Scan Tool (GST) Function .......................704
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
705
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE ..............................................................
709
Description .......................................................... ..709
Testing Condition ..................................................709
Inspection Procedure ............................................709
Diagnosis Procedure .............................................710
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT .........................................................
717
Description .......................................................... ..717
Diagnosis Procedure .............................................717
POWER SUPPLY AND GROUND CIRCUIT ..718
Wiring Diagram .................................................... ..718
Diagnosis Procedure .............................................719
Ground Inspection .................................................723
DTC U1000, U1001 CAN COMMUNICATION
LINE .................................................................
724
Description .............................................................724
On Board Diagnosis Logic .....................................724
DTC Confirmation Procedure ................................724
Wiring Diagram ......................................................725
Diagnosis Procedure .............................................725
DTC U1010 CAN COMMUNICATION .............726
Description .............................................................726
On Board Diagnosis Logic .....................................726
DTC Confirmation Procedure ................................726
Diagnosis Procedure .............................................726
DTC P0011, P0021 IVT CONTROL ................727
Description .............................................................727
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
728
On Board Diagnosis Logic .....................................728
DTC Confirmation Procedure ................................728
Wiring Diagram ......................................................730
Diagnosis Procedure .............................................733
Component Inspection ...........................................737
Removal and Installation .......................................738
DTC P0031, P0032, P0051, P0052 A/F SEN-
SOR 1 HEATER ..............................................
739
Description .............................................................739
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
739
On Board Diagnosis Logic .....................................739
DTC Confirmation Procedure ................................739
Wiring Diagram ......................................................740
Diagnosis Procedure .............................................743
Component Inspection ...........................................744
Removal and Installation .......................................745
DTC P0037, P0038, P0057, P0058 HO2S2
HEATER ..........................................................
746
Description .............................................................746
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
746
On Board Diagnosis Logic .....................................746
DTC Confirmation Procedure ................................746
Wiring Diagram ......................................................748
Diagnosis Procedure .............................................751
Component Inspection ...........................................752
Removal and Installation .......................................753
DTC P0075, P0081 IVT CONTROL SOLE-
NOID VALVE ...................................................
754
Component Description .........................................754
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
754
On Board Diagnosis Logic .....................................754
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
EC-53
< SERVICE INFORMATION > [VQ35DE]
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
DescriptionINFOID:0000000001325913

If the security indicator lights up with the ignition switch in the ON position or “NATS MALFUNC-
TION” is displayed on “SELF-DIAG RESULTS” screen, perform self-diagnostic results mode with
CONSULT-III using NATS program card. Refer to BL-185
.
 Confirm no self-diagnostic results of IVIS (NATS) is displayed before touching “ERASE” in “SELF-
DIAG RESULTS” mode with CONSULT-III.
 When replacing ECM, initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition
key IDs must be carried out with CO NSULT-III 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, refe r to CONSULT-III Operation Manual,
IVIS/NVIS.
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TROUBLE DIAGNOSISEC-99
< SERVICE INFORMATION > [VQ35DE]
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1 - 6: The numbers refer to the order of inspection. Exhaust Exhaust manifold/Tube/Muffler/
Gasket 55555 55 5 EM-26
,
EX-
3Three way catalyst
Lubrica-
tion Oil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler
55555 55 5 EM-30
,
LU-
15, LU-8,
LU-12
Oil level (Low)/Filthy oil LU-5
Cooling
Radiator/Hose/Radiator filler cap
55555 55 45 CO-13,
CO-16
Thermostat 5 CO-27
Water pumpCO-22
Water galleryCO-29
Cooling fan 5EC-210
Coolant level (Low)/Contaminat-
ed coolant5
CO-10
IVIS (Infiniti Vehicle Immobilizer System —
NATS) 11 EC-53 or
BL-185
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
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