immobilizer INFINITI M35 2006 Factory Workshop Manual

BL-278
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 January2006 M35/M45
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect multifunction switch (security indicator) connector.
3. Check voltage between multifunction switch (security indicator)
connector and ground.
OK or NG
OK >> Check the following.
Harness for open or short between BCM and multifunction switch (security indicator)
Security indicator lamp condition
NG >> Check the following.
15A fuse [No.37, located in fuse block (J/B)]
Harness for open or short between multifunction switch (security indicator) and fuse
DTC P1612 CHAIN of ECM-IMMUNIS0020S
Self-diagnostic results:
“CHAIN OF ECM-IMMU” displayed on CONSULT-II screen
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-II, then perform the trouble diagno-
sis of malfunction system indicated “SELF-DIAG RESULTS” of “BCM”. Refer to BCS-15, "
CAN Com-
munication Inspection Using CONSULT-II (Self-Diagnosis)" .
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF ECM-IMMU”
displayed on CONSULT-II screen.
NOTE:
In rare case, “CHAIN OF ECM-IMMU” might be stored during key
registration procedure, even if the system is not malfunctioning.
Is CONSULT-II screen displayed as shown in figure?
Yes >> GO TO 2.
No >> GO TO BL-271, "
“NATS V5.0” SELF-DIAGNOSTIC
RESULTS ITEM CHART" .
Te r m i n a l s
Voltage (V)
(Approx.) (+)
(–) multifunction switch
(security indicator)
connectorTerminal
M69 1 Ground Battery voltage
PIIB6218E
PIIA1260E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-279
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Revision: 2006 January2006 M35/M45
2. CHECK POWER SUPPLY CIRCUIT FOR BCM
Check voltage between BCM and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> Check the following.
50A fusible link (letter F , located in the fuse and fusible link box)
10A fuse [No.21, located in the fuse block (J/B)]
15A fuse [No. 1, located in the fuse block (J/B)]
Harness for open or short between fusible link and BCM
Harness for open or short between fuse and BCM
3. CHECK GROUND CIRCUIT FOR BCM
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. REPLACE BCM
1. Replace BCM
2. Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”.
Does the engine start?
Yes >> 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-252, "ECM Re-Communicating Function"
Terminals
Condition of
ignition switchVoltage (V)
(Approx.) (+)
(–)
BCM connector Terminal
M1 38
GroundON
Battery voltage
M242
OFF
55
PIIB5934E
BCM connector Terminal
GroundContinuity
M2 52 Yes
PIIB5935E

BL-280
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 January2006 M35/M45
DTC P1611 ID DISCORD, IMM-ECMNIS0020T
Self-diagnostic results:
“ID DISCORD, IMM-ECM” displayed on CONSULT-II screen
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “ID DISCORD, IMM-ECM” displayed on CONSULT-II screen.
NOTE:
“ID DISCORD IMM-ECM”:
Registered ID of BCM is in discord with that of ECM.
Is CONSULT-II screen displayed as shown in figure?
Yes >> GO TO 2.
No >> GO TO BL-271, "
“NATS V5.0” SELF-DIAGNOSTIC
RESULTS ITEM CHART" .
2. PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II. Re-register all NATS ignition key IDs.
For initialization, refer to “CONSULT-II Operation Manual NATS-
IVIS/NVIS”.
NOTE:
If the initialization is not completed or malfunctions, CONSULT-II
shows message on the screen.
Can the system be initialized?
Ye s > >Start engine. (END)
(System initialization had not been completed.)
No >> ECM is malfunctioning.
Replace ECM.
Perform initialization with CONSULT-II
For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”
Removal and Installation of Key SlotNIS0020U
REMOVAL
1. Remove instrument driver lower panel. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Disconnect key slot connector.
3. Remove key slot mounting screw, and then remove key slot.
INSTALLATION
Installation is in the reverse order of removal.
PIIA1262E
SEL297W
PIIB6284E

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTION EC
A
EC
Revision: 2006 January2006 M35/M45
ENGINE CONTROL SYSTEM
VQ35DE
INDEX FOR DTC ...................................................... 16
DTC No. Index ....................................................... 16
Alphabetical Index .................................................. 20
PRECAUTIONS ........................................................ 24
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................ 24
Precautions for Procedures without Cowl Top Cover ... 24
On Board Diagnostic (OBD) System of Engine and
A/T .......................................................................... 24
Precaution .............................................................. 25
PREPARATION ......................................................... 28
Special Service Tools ............................................. 28
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 ........................................... 49POSITIVE 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) ........................... 69
OBD System Operation Chart ................................ 72
BASIC SERVICE PROCEDURE ............................... 77
Basic Inspection ..................................................... 77
Idle Speed and Ignition Timing Check .................... 82
Idle Mixture Ratio Adjustment ................................. 84
VIN Registration ..................................................... 95
Accelerator Pedal Released Position Learning ...... 95
Throttle Valve Closed Position Learning ................. 95
Idle Air Volume Learning ........................................ 96
Fuel Pressure Check .............................................. 98
TROUBLE DIAGNOSIS ..........................................100
Trouble Diagnosis Introduction .............................100
DTC Inspection Priority Chart ...............................106
Fail-Safe Chart .....................................................108
Symptom Matrix Chart ..........................................109
Engine Control Component Parts Location ..........113
Vacuum Hose Drawing .........................................121
Circuit Diagram .....................................................122
ECM Harness Connector Terminal Layout ...........124
ECM Terminals and Reference Value ...................124
CONSULT-II Function (ENGINE) ..........................133
Generic Scan Tool (GST) Function .......................146
CONSULT-II Reference Value in Data Monitor .....149
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................153
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .155
Description ............................................................155
Testing Condition ..................................................155

EC-8Revision: 2006 January2006 M35/M45 Wiring Diagram .....................................................708
Diagnostic Procedure ...........................................709
Component Inspection ..........................................713
ASCD INDICATOR .................................................
.714
Component Description ........................................714
CONSULT-II Reference Value in Data Monitor Mode
.714
Wiring Diagram .....................................................715
Diagnostic Procedure ...........................................716
SNOW MODE SWITCH ...........................................717
Description ............................................................717
CONSULT-II Reference Value in the Data Monitor
Mode .....................................................................717
Wiring Diagram .....................................................718
Diagnostic Procedure ...........................................719
Component Inspection ..........................................721
MIL AND DATA LINK CONNECTOR ......................722
Wiring Diagram .....................................................722
SERVICE DATA AND SPECIFICATIONS (SDS) ....724
Fuel Pressure .......................................................724
Idle Speed and Ignition Timing .............................724
Calculated Load Value ..........................................724
Mass Air Flow Sensor ...........................................724
Intake Air Temperature Sensor .............................724
Engine Coolant Temperature Sensor ...................724
Fuel Tank Temperature Sensor ............................724
Crankshaft Position Sensor (POS) .......................724
Camshaft Position Sensor (PHASE) ....................724
A/F Sensor 1 Heater ............................................ .724
Heated Oxygen Sensor 2 Heater .........................725
Throttle Control Motor ...........................................725
Fuel Injector ..........................................................725
Fuel Pump ............................................................725
VK45DE
INDEX FOR DTC .....................................................726
DTC No. Index ......................................................726
Alphabetical Index ................................................730
PRECAUTIONS .......................................................734
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ...............................................................734
Precautions for Procedures without Cowl Top Cover .734
On Board Diagnostic (OBD) System of Engine and
A/T ........................................................................734
Precaution ............................................................735
PREPARATION .......................................................738
Special Service Tools ...........................................738
Commercial Service Tools ....................................739
ENGINE CONTROL SYSTEM ................................740
System Diagram ...................................................740
Multiport Fuel Injection (MFI) System ...................741
Electronic Ignition (EI) System .............................743
Fuel Cut Control (At No Load and High Engine
Speed) ..................................................................744
AIR CONDITIONING CUT CONTROL ....................745
Input/Output Signal Chart .....................................745
System Description ...............................................745AUTOMATIC SPEED CONTROL DEVICE (ASCD) .746
System Description ...............................................746
Component Description ........................................747
CAN COMMUNICATION .........................................748
System Description ...............................................748
EVAPORATIVE EMISSION SYSTEM .....................749
Description ............................................................749
Component Inspection ..........................................752
Removal and Installation .......................................753
How to Detect Fuel Vapor Leakage ......................753
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ....................................................................756
System Description ...............................................756
Diagnostic Procedure ............................................757
Component Inspection ..........................................759
POSITIVE CRANKCASE VENTILATION ................761
Description ............................................................761
Component Inspection ..........................................761
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ......................................................................763
Description ............................................................763
ON BOARD DIAGNOSTIC (OBD) SYSTEM ...........764
Introduction ..........................................................
.764
Two Trip Detection Logic .......................................764
Emission-Related Diagnostic Information .............765
Malfunction Indicator Lamp (MIL) .........................780
OBD System Operation Chart ...............................782
BASIC SERVICE PROCEDURE .............................788
Basic Inspection ....................................................788
Idle Speed and Ignition Timing Check ..................793
Idle Mixture Ratio Adjustment ...............................795
VIN Registration ....................................................806
Accelerator Pedal Released Position Learning .....806
Throttle Valve Closed Position Learning ...............806
Idle Air Volume Learning .......................................807
Fuel Pressure Check ............................................809
TROUBLE DIAGNOSIS ..........................................811
Trouble Diagnosis Introduction .............................811
DTC Inspection Priority Chart ...............................817
Fail-Safe Chart ......................................................819
Symptom Matrix Chart ..........................................820
Engine Control Component Parts Location ...........824
Vacuum Hose Drawing .........................................833
Circuit Diagram .....................................................834
ECM Harness Connector Terminal Layout ............836
ECM Terminals and Reference Value ...................836
CONSULT-II Function (ENGINE) ..........................846
Generic Scan Tool (GST) Function .......................859
CONSULT-II Reference Value in Data Monitor .....862
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................866
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .868
Description ............................................................868
Testing Condition ..................................................868
Inspection Procedure ...........................................
.868
Diagnostic Procedure ............................................869
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
EC-53
[VQ35DE]
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Revision: 2006 January2006 M35/M45
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)PFP:28591
DescriptionNBS004SK
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-248, "
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

EC-112
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
1 - 6: The numbers refer to the order of inspection.Cooling
Radiator/Hose/Radiator filler cap
55555 55 45CO-14
,
CO-18
Thermostat 5CO-29
Water pumpCO-24
Water galleryCO-31
Cooling fan
5CO-22
Coolant level (Low)/Contami-
nated coolantCO-11
IVIS (INFINITI Vehicle Immobilizer System —
NATS)11EC-53 or
BL-248
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

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
EC-763
[VK45DE]
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)PFP:28591
DescriptionNBS005A0
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-248, "
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 IVIS (NATS) ignition key ID registration, refer to CONSULT-II operation manual,
IVIS/NVIS.
SEF543X

TROUBLE DIAGNOSIS
EC-823
[VK45DE]
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EC
Revision: 2006 January2006 M35/M45
1 - 6: The numbers refer to the order of inspection.Cooling
Radiator/Hose/Radiator filler cap
55555 55 45CO-43
,
CO-47
Thermostat 5CO-55
Water pumpCO-53
Water galleryCO-38
Cooling fan
5CO-51
Coolant level (Low)/Contami-
nated coolantCO-40
IVIS (INFINITI Vehicle Immobilizer System —
NATS)11EC-763 or
BL-248
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

PRECAUTIONS
EM-5
[VQ35DE]
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Revision: 2006 January2006 M35/M45
[VQ35DE]PRECAUTIONSPFP:00001
Precautions for Procedures without Cowl Top CoverNBS004MF
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectNBS005RR
NOTE:
This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).
Remove and install all control units after disconnecting both battery cables with the ignition knob in the
LOCK position.
Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the
ACC position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the
LOCK position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.
Precautions for Drain Engine Coolant and Engine OilNBS004MH
Drain engine coolant and engine oil when the engine is cooled.
Precautions for Disconnecting Fuel PipingNBS004MI
Before starting work, make sure no fire or spark producing items are in the work area.
Release fuel pressure before disconnecting and disassembly.
After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and DisassemblyNBS004MJ
When instructed to use SST, use specified tools. Always be careful to work safely, avoid forceful or unin-
structed operations.
Exercise maximum care to avoid damage to mating or sliding surfaces.
PIIB3706J