2007 INFINITI M35 fuel system diagram
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A/T CONTROL SYSTEM
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Lock-up ControlNCS001JU
The torque converter clutch piston in the torque converter is engaged to eliminate torque converter slip to
increase power transmission efficiency.
The torque converter clutch control valve operation is controlled by the torque converter clutch solenoid valve,
which is controlled by a signal from TCM, and the torque converter clutch control valve engages or releases
the torque converter clutch piston.
Lock-up operation condition table
TORQUE CONVERTER CLUTCH CONTROL VALVE CONTROL
Lock-up Control System Diagram
Lock-up Released
In the lock-up released state, the torque converter clutch control valve is set into the unlocked state by the
torque converter clutch solenoid and the lock-up apply pressure is drained.
In this way, the torque converter clutch piston is not coupled.
Lock-up Applied
In the lock-up applied state, the torque converter clutch control valve is set into the locked state by the
torque converter clutch solenoid and lock-up apply pressure is generated.
In this way, the torque converter clutch piston is pressed and coupled.
SMOOTH LOCK-UP CONTROL
When shifting from the lock-up released state to the lock-up applied state, the current output to the torque con-
verter clutch solenoid is controlled with the TCM. In this way, when shifting to the lock-up applied state, the
torque converter clutch is temporarily set to the half-clutched state to reduce the shock.
Half-clutched State
The current output from the TCM to the torque converter clutch solenoid is varied to steadily increase the
torque converter clutch solenoid pressure.
In this way, the lock-up apply pressure gradually rises and while the torque converter clutch piston is put
into half-clutched status, the torque converter clutch piston operating pressure is increased and the cou-
pling is completed smoothly.
Slip Lock-up Control
In the slip region, the torque converter clutch solenoid current is controlled with the TCM to put it into the
half-clutched state. This absorbs the engine torque fluctuation and lock-up operates from low speed.
This raises the fuel efficiency for 3rd, 4th and 5th gears at both low speed and when the accelerator has a
low degree of opening.
Selector lever “D” position “M” position
Gear position 5 4 3 5 4
Lock-up×––××
Slip lock-up×××––
PCIA0014E
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BL-1
BODY, LOCK & SECURITY SYSTEM
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BODY, LOCK & SECURITY SYSTEM
PRECAUTIONS .......................................................... 6
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 6
Precautions for Procedures without Cowl Top Cover ..... 6
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 6
OPERATION PROCEDURE ................................. 6
Precautions for Work ................................................ 7
PREPARATION ........................................................... 8
Special Service Tools ............................................... 8
Commercial Service Tools ........................................ 8
SQUEAK AND RATTLE TROUBLE DIAGNOSIS ...... 9
Work Flow ................................................................ 9
CUSTOMER INTERVIEW ..................................... 9
DUPLICATE THE NOISE AND TEST DRIVE ..... 10
CHECK RELATED SERVICE BULLETINS ......... 10
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE .................................................... 10
REPAIR THE CAUSE ......................................... 10
CONFIRM THE REPAIR ...................................... 11
Generic Squeak and Rattle Troubleshooting .......... 11
INSTRUMENT PANEL ......................................... 11
CENTER CONSOLE ............................................ 11
DOORS ................................................................ 11
TRUNK ................................................................ 12
SUNROOF/HEADLINING ................................... 12
SEATS ................................................................. 12
UNDERHOOD ..................................................... 12
Diagnostic Worksheet ............................................ 13
HOOD ....................................................................... 15
Fitting Adjustment .................................................. 15
Removal and Installation of Hood Assembly .......... 17
REMOVAL ........................................................... 17
INSTALLETION ................................................... 18
Removal and Installation of Hood Lock Control ..... 18
REMOVAL ........................................................... 18
INSTALLATION ................................................... 19
Hood Lock Control Inspection ................................ 20RADIATOR CORE SUPPORT .................................. 21
Removal and Installation ........................................ 21
REMOVAL ........................................................... 21
INSTALLATION ................................................... 22
FRONT FENDER ...................................................... 23
Removal and Installation ........................................ 23
REMOVAL ........................................................... 23
INSTALLATION ................................................... 23
POWER DOOR LOCK SYSTEM .............................. 24
Component Parts and Harness Connector Location ... 24
System Description ................................................. 25
DOOR LOCK ACTUATOR OPERATION ............. 26
FUEL LID OPERATION ....................................... 26
OUTLINE ............................................................. 26
CAN Communication System Description .............. 26
CAN Communication Unit ....................................... 26
Schematic ............................................................... 27
Wiring Diagram —D/LOCK— ................................. 28
Terminals and Reference Value of BCM ................. 31
Work Flow ............................................................... 31
CONSULT-II Function (BCM) ................................. 32
CONSULT-II START PROCEDURE .................... 32
CONSULT-II APPLICATION ITEMS .................... 32
Trouble Diagnosis Chart by Symptom .................... 33
Power Supply and Ground Circuit Check of BCM ... 34
Check Door Lock and Unlock Switch ..................... 35
Check Door Lock Actuator/Driver Side ................... 37
Check Door Lock Actuator/Passenger Side ........... 38
Check Door Lock Actuator/Rear LH ....................... 39
Check Door Lock Actuator/Rear RH ....................... 39
Check Fuel Lid Opener Actuator ............................ 40
Door Key Cylinder Switch Check ............................ 41
INTELLIGENT KEY SYSTEM ................................... 43
Component Parts and Harness Connector Location ... 43
System Description ................................................. 47
DOOR LOCK/UNLOCK/TRUNK OPEN FUNC-
TION .................................................................... 47
REMOTE KEYLESS ENTRY FUNCTIONS ......... 51
ENGINE START FUNCTION ............................... 53
WARNING FUNCTION ........................................ 54
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DI-1
DRIVER INFORMATION SYSTEM
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DRIVER INFORMATION SYSTEM
PRECAUTION ............................................................ 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
PREPARATION ........................................................... 4
Commercial Service Tools ........................................ 4
COMBINATION METERS ........................................... 5
System Description .................................................. 5
UNIFIED METER CONTROL UNIT ...................... 5
UNIFIED METER AND A/C AMP. ......................... 5
POWER SUPPLY AND GROUND CIRCUIT ........ 5
SPEEDOMETER ................................................... 6
TACHOMETER ..................................................... 6
WATER TEMPERATURE GAUGE ........................ 6
FUEL GAUGE ....................................................... 7
ODO/TRIP METER ............................................... 7
METER ILLUMINATION CONTROL ..................... 8
FAIL-SAFE ............................................................ 9
Arrangement of Combination Meter ....................... 10
Component Parts Location ...................................... 11
Internal Circuit ........................................................ 12
Wiring Diagram — METER — ................................ 13
Terminals and Reference Value for Combination
Meter ...................................................................... 15
Terminals and Reference Value for Unified Meter
and A/C Amp. ......................................................... 16
Self-Diagnosis Mode of Combination Meter ........... 17
SELF-DIAGNOSIS FUNCTION .......................... 17
OPERATION PROCEDURE ............................... 17
CONSULT-II Function (METER A/C AMP) ............. 18
Trouble Diagnosis .................................................. 18
HOW TO PERFORM TROUBLE DIAGNOSIS ... 18
PRELIMINARY CHECK ...................................... 18
Symptom Chart ...................................................... 18
Power Supply and Ground Circuit Inspection ........ 19
Vehicle Speed Signal Inspection ............................ 20
Engine Speed Signal Inspection ............................ 21
Engine Coolant Temperature Signal Inspection ..... 22
Fuel Level Sensor Signal Inspection ...................... 22
Fuel Gauge Pointer Fluctuates, Indicator Wrong Value or Varies ....................................................... 25
Fuel Gauge Does Not Move to FULL Position ....... 25
Electrical Components Inspection .......................... 26
CHECK FUEL LEVEL SENSOR UNIT ................ 26
Removal and Installation of Combination Meter ..... 27
REMOVAL ........................................................... 27
INSTALLATION ................................................... 27
Disassembly and Assembly of Combination Meter ... 27
DISASSEMBLY ................................................... 27
ASSEMBLY ......................................................... 27
UNIFIED METER AND A/C AMP .............................. 28
System Description ................................................. 28
COMBINATION METER CONTROL FUNCTION ... 28
A/C AUTO AMP. FUNCTION ............................... 29
OTHER FUNCTIONS .......................................... 29
Schematic ............................................................... 30
CONSULT-II Function (METER A/C AMP) ............. 31
CONSULT-II BASIC OPERATION ....................... 31
SELF-DIAG RESULTS ........................................ 31
DATA MONITOR ................................................. 32
Power Supply and Ground Circuit Inspection ......... 34
DTC [U1000] CAN Communication Circuit ............. 35
DTC [B2202] Meter Communication Circuit ........... 35
DTC [B2205] Vehicle Speed Circuit ........................ 38
Removal and Installation of Unified Meter and A/C
Amp. ....................................................................... 38
REMOVAL ........................................................... 38
INSTALLATION ................................................... 38
WARNING LAMPS .................................................... 39
System Description ................................................. 39
OIL PRESSURE WARNING LAMP ..................... 39
Component Parts and Harness Connector Location ... 40
Schematic ............................................................... 41
Wiring Diagram — WARN — .................................. 42
Oil Pressure Warning Lamp Stays Off (Ignition
Switch ON) ............................................................. 52
Oil Pressure Warning Lamp Does Not Turn Off (Oil
Pressure Is Normal) ................................................ 53
Electrical Component Inspection ............................ 54
OIL PRESSURE SWITCH ................................... 54
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EC-1
ENGINE CONTROL SYSTEM
B ENGINE
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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) ........................... 70
OBD System Operation Chart ................................ 73
BASIC SERVICE PROCEDURE ............................... 78
Basic Inspection ..................................................... 78
Idle Speed and Ignition Timing Check .................... 83
Procedure After Replacing ECM ............................ 85
VIN Registration ..................................................... 85
Accelerator Pedal Released Position Learning ...... 86
Throttle Valve Closed Position Learning ................. 86
Idle Air Volume Learning ........................................ 86
Fuel Pressure Check .............................................. 88
TROUBLE DIAGNOSIS ............................................ 90
Trouble Diagnosis Introduction ............................... 90
DTC Inspection Priority Chart ................................. 96
Fail-Safe Chart ....................................................... 98
Symptom Matrix Chart ............................................ 99
Engine Control Component Parts Location ..........103
Vacuum Hose Drawing ..........................................111
Circuit Diagram .....................................................112
ECM Harness Connector Terminal Layout ...........114
ECM Terminals and Reference Value ...................114
CONSULT-II Function (ENGINE) ..........................123
Generic Scan Tool (GST) Function .......................135
CONSULT-II Reference Value in Data Monitor .....138
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................141
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .143
Description ............................................................143
Testing Condition ..................................................143
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Revision: 2007 April2007 M35/M45 On Board Diagnosis Logic ................................... 229
DTC Confirmation Procedure ............................... 229
Diagnostic Procedure ........................................... 230
Component Inspection ......................................... 231
Removal and Installation ...................................... 231
DTC P0128 THERMOSTAT FUNCTION ................ 232
On Board Diagnosis Logic ................................... 232
DTC Confirmation Procedure ............................... 232
Diagnostic Procedure ........................................... 232
Component Inspection ......................................... 233
Removal and Installation ...................................... 233
DTC P0130, P0150 A/F SENSOR 1 ....................... 234
Component Description ........................................ 234
CONSULT-II Reference Value in Data Monitor Mode
. 234
On Board Diagnosis Logic ................................... 234
DTC Confirmation Procedure ............................... 234
Overall Function Check ........................................ 236
Wiring Diagram .................................................... 237
Diagnostic Procedure ........................................... 240
Removal and Installation ...................................... 243
DTC P0131, P0151 A/F SENSOR 1 ....................... 244
Component Description ........................................ 244
CONSULT-II Reference Value in Data Monitor Mode
. 244
On Board Diagnosis Logic ................................... 244
DTC Confirmation Procedure ............................... 244
Wiring Diagram .................................................... 246
Diagnostic Procedure ........................................... 249
Removal and Installation ...................................... 252
DTC P0132, P0152 A/F SENSOR 1 ....................... 253
Component Description ........................................ 253
CONSULT-II Reference Value in Data Monitor Mode
. 253
On Board Diagnosis Logic ................................... 253
DTC Confirmation Procedure ............................... 253
Wiring Diagram .................................................... 255
Diagnostic Procedure ........................................... 258
Removal and Installation ...................................... 261
DTC P0133, P0153 A/F SENSOR 1 ....................... 262
Component Description ........................................ 262
CONSULT-II Reference Value in Data Monitor Mode
. 262
On Board Diagnosis Logic ................................... 262
DTC Confirmation Procedure ............................... 263
Wiring Diagram .................................................... 265
Diagnostic Procedure ........................................... 268
Removal and Installation ...................................... 273
DTC P0137, P0157 HO2S2 .................................... 274
Component Description ........................................ 274
CONSULT-II Reference Value in Data Monitor Mode
. 274
On Board Diagnosis Logic ................................... 274
DTC Confirmation Procedure ............................... 275
Overall Function Check ........................................ 275
Wiring Diagram .................................................... 277
Diagnostic Procedure ........................................... 280
Component Inspection ......................................... 282
Removal and Installation ...................................... 284DTC P0138, P0158 HO2S2 .....................................285
Component Description ........................................285
CONSULT-II Reference Value in Data Monitor Mode
.285
On Board Diagnosis Logic ....................................285
DTC Confirmation Procedure ...............................286
Overall Function Check ........................................287
Wiring Diagram .....................................................288
Diagnostic Procedure ...........................................291
Component Inspection ..........................................295
Removal and Installation ......................................297
DTC P0139, P0159 HO2S2 .....................................298
Component Description ........................................298
CONSULT-II Reference Value in Data Monitor Mode
.298
On Board Diagnosis Logic ....................................298
DTC Confirmation Procedure ...............................299
Overall Function Check ........................................299
Wiring Diagram .....................................................301
Diagnostic Procedure ...........................................304
Component Inspection ..........................................306
Removal and Installation ......................................308
DTC P0171, P0174 FUEL INJECTION SYSTEM
FUNCTION ..............................................................309
On Board Diagnosis Logic ....................................309
DTC Confirmation Procedure ...............................309
Wiring Diagram .....................................................311
Diagnostic Procedure ...........................................315
DTC P0172, P0175 FUEL INJECTION SYSTEM
FUNCTION ..............................................................320
On Board Diagnosis Logic ....................................320
DTC Confirmation Procedure ...............................320
Wiring Diagram .....................................................322
Diagnostic Procedure ...........................................326
DTC P0181 FTT SENSOR ......................................331
Component Description ........................................331
On Board Diagnosis Logic ....................................331
DTC Confirmation Procedure ...............................331
Wiring Diagram .....................................................333
Diagnostic Procedure ...........................................334
Component Inspection ..........................................336
Removal and Installation ......................................336
DTC P0182, P0183 FTT SENSOR ..........................337
Component Description ........................................337
On Board Diagnosis Logic ....................................337
DTC Confirmation Procedure ...............................337
Wiring Diagram .....................................................338
Diagnostic Procedure ...........................................339
Component Inspection ..........................................341
Removal and Installation ......................................341
DTC P0222, P0223 TP SENSOR ............................342
Component Description ........................................342
CONSULT-II Reference Value in Data Monitor Mode
.342
On Board Diagnosis Logic ....................................342
DTC Confirmation Procedure ...............................343
Wiring Diagram .....................................................344
Diagnostic Procedure ...........................................345
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Revision: 2007 April2007 M35/M45 DTC Confirmation Procedure ............................... 438
Wiring Diagram .................................................... 439
Diagnostic Procedure ........................................... 440
Component Inspection ......................................... 444
DTC P0455 EVAP CONTROL SYSTEM ................ 445
On Board Diagnosis Logic ................................... 445
DTC Confirmation Procedure ............................... 446
Diagnostic Procedure ........................................... 447
DTC P0456 EVAP CONTROL SYSTEM ................ 453
On Board Diagnosis Logic ................................... 453
DTC Confirmation Procedure ............................... 454
Overall Function Check ........................................ 455
Diagnostic Procedure ........................................... 456
DTC P0460 FUEL LEVEL SENSOR ...................... 462
Component Description ........................................ 462
On Board Diagnosis Logic ................................... 462
DTC Confirmation Procedure ............................... 462
Diagnostic Procedure ........................................... 463
Removal and Installation ...................................... 463
DTC P0461 FUEL LEVEL SENSOR ...................... 464
Component Description ........................................ 464
On Board Diagnosis Logic ................................... 464
Overall Function Check ........................................ 464
Diagnostic Procedure ........................................... 465
Removal and Installation ...................................... 465
DTC P0462, P0463 FUEL LEVEL SENSOR CIR-
CUIT ........................................................................ 466
Component Description ........................................ 466
On Board Diagnosis Logic ................................... 466
DTC Confirmation Procedure ............................... 466
Diagnostic Procedure ........................................... 467
Removal and Installation ...................................... 467
DTC P0500 VSS ..................................................... 468
Description ........................................................... 468
On Board Diagnosis Logic ................................... 468
DTC Confirmation Procedure ............................... 468
Overall Function Check ........................................ 469
Diagnostic Procedure ........................................... 469
DTC P0506 ISC SYSTEM ....................................... 470
Description ........................................................... 470
On Board Diagnosis Logic ................................... 470
DTC Confirmation Procedure ............................... 470
Diagnostic Procedure ........................................... 471
DTC P0507 ISC SYSTEM ....................................... 472
Description ........................................................... 472
On Board Diagnosis Logic ................................... 472
DTC Confirmation Procedure ............................... 472
Diagnostic Procedure ........................................... 473
DTC P0550 PSP SENSOR ..................................... 474
Component Description ........................................ 474
CONSULT-II Reference Value in Data Monitor Mode
. 474
On Board Diagnosis Logic ................................... 474
DTC Confirmation Procedure ............................... 474
Wiring Diagram .................................................... 475
Diagnostic Procedure ........................................... 476
Component Inspection ......................................... 478
Removal and Installation ...................................... 478DTC P0603 ECM POWER SUPPLY .......................479
Component Description ........................................479
On Board Diagnosis Logic ....................................479
DTC Confirmation Procedure ...............................479
Wiring Diagram .....................................................480
Diagnostic Procedure ...........................................481
DTC P0605 ECM .....................................................483
Component Description ........................................483
On Board Diagnosis Logic ....................................483
DTC Confirmation Procedure ...............................483
Diagnostic Procedure ...........................................484
DTC P0643 SENSOR POWER SUPPLY ................486
On Board Diagnosis Logic ....................................486
DTC Confirmation Procedure ...............................486
Wiring Diagram .....................................................487
Diagnostic Procedure ...........................................489
DTC P0850 PNP SWITCH ......................................491
Component Description ........................................491
CONSULT-II Reference Value in Data Monitor Mode
.491
On Board Diagnosis Logic ....................................491
DTC Confirmation Procedure ...............................491
Overall Function Check ........................................492
Wiring Diagram .....................................................493
Diagnostic Procedure ...........................................494
DTC P1148, P1168 CLOSED LOOP CONTROL ....496
On Board Diagnosis Logic ....................................496
DTC P1211 TCS CONTROL UNIT ..........................497
Description ............................................................497
On Board Diagnosis Logic ....................................497
DTC Confirmation Procedure ...............................497
Diagnostic Procedure ...........................................497
DTC P1212 TCS COMMUNICATION LINE ............498
Description ............................................................498
On Board Diagnosis Logic ....................................498
DTC Confirmation Procedure ...............................498
Diagnostic Procedure ...........................................498
DTC P1217 ENGINE OVER TEMPERATURE ........499
Description ............................................................499
CONSULT-II Reference Value in Data Monitor Mode
.500
On Board Diagnosis Logic ....................................500
Overall Function Check ........................................500
Wiring Diagram .....................................................502
Diagnostic Procedure ...........................................504
Main 12 Causes of Overheating ...........................507
Component Inspection ..........................................509
DTC P1220 FUEL PUMP CONTROL MODULE
(FPCM) ....................................................................510
Description ............................................................510
CONSULT-II Reference Value in Data Monitor Mode
.510
On Board Diagnosis Logic ....................................510
DTC Confirmation Procedure ...............................511
Wiring Diagram .....................................................512
Diagnostic Procedure ...........................................513
Component Inspection ..........................................517
DTC P1225 TP SENSOR ........................................518
Component Description ........................................518
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Wiring Diagram .....................................................684
Diagnostic Procedure ...........................................685
Component Inspection ..........................................689
IGNITION SIGNAL ..................................................691
Component Description ........................................691
Wiring Diagram .....................................................692
Diagnostic Procedure ...........................................697
Component Inspection ..........................................702
Removal and Installation ......................................703
REFRIGERANT PRESSURE SENSOR ..................704
Component Description ........................................704
Wiring Diagram .....................................................705
Diagnostic Procedure ...........................................706
Removal and Installation ......................................708
SNOW MODE SWITCH ...........................................709
Description ............................................................709
CONSULT-II Reference Value in the Data Monitor
Mode .....................................................................709
Wiring Diagram .....................................................710
Diagnostic Procedure ...........................................711
Component Inspection ..........................................713
MIL AND DATA LINK CONNECTOR ......................714
Wiring Diagram .....................................................714
SERVICE DATA AND SPECIFICATIONS (SDS) ....716
Fuel Pressure .......................................................716
Idle Speed and Ignition Timing .............................716
Calculated Load Value ..........................................716
Mass Air Flow Sensor ...........................................716
Intake Air Temperature Sensor .............................716
Engine Coolant Temperature Sensor ...................716
Fuel Tank Temperature Sensor ............................716
Crankshaft Position Sensor (POS) .......................716
Camshaft Position Sensor (PHASE) ....................716
A/F Sensor 1 Heater .............................................716
Heated Oxygen Sensor 2 Heater .........................717
Throttle Control Motor ...........................................717
Fuel Injector ..........................................................717
Fuel Pump ............................................................717
VK45DE
INDEX FOR DTC .....................................................718
DTC No. Index ......................................................718
Alphabetical Index ................................................722
PRECAUTIONS .......................................................726
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ...............................................................726
Precautions for Procedures without Cowl Top Cover .726
On Board Diagnostic (OBD) System of Engine and
A/T ........................................................................726
Precaution ............................................................727
PREPARATION .......................................................730
Special Service Tools ...........................................730
Commercial Service Tools ....................................731
ENGINE CONTROL SYSTEM ................................732
System Diagram ...................................................732
Multiport Fuel Injection (MFI) System ...................733Electronic Ignition (EI) System ..............................735
Fuel Cut Control (At No Load and High Engine
Speed) ..................................................................736
AIR CONDITIONING CUT CONTROL ....................737
Input/Output Signal Chart .....................................737
System Description ...............................................737
AUTOMATIC SPEED CONTROL DEVICE (ASCD) .738
System Description ...............................................738
Component Description ........................................739
CAN COMMUNICATION .........................................740
System Description ...............................................740
EVAPORATIVE EMISSION SYSTEM .....................741
Description ............................................................741
Component Inspection ..........................................744
Removal and Installation .......................................745
How to Detect Fuel Vapor Leakage ......................745
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ....................................................................748
System Description ...............................................748
Diagnostic Procedure ............................................749
Component Inspection ..........................................751
POSITIVE CRANKCASE VENTILATION ................753
Description ............................................................753
Component Inspection ..........................................753
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ......................................................................755
Description ............................................................755
ON BOARD DIAGNOSTIC (OBD) SYSTEM ...........756
Introduction ...........................................................756
Two Trip Detection Logic .......................................756
Emission-Related Diagnostic Information .............757
Malfunction Indicator Lamp (MIL) .........................772
OBD System Operation Chart ...............................774
BASIC SERVICE PROCEDURE .............................780
Basic Inspection ....................................................780
Idle Speed and Ignition Timing Check ..................785
Procedure After Replacing ECM ...........................787
VIN Registration ....................................................787
Accelerator Pedal Released Position Learning .....788
Throttle Valve Closed Position Learning ...............788
Idle Air Volume Learning .......................................788
Fuel Pressure Check ............................................790
TROUBLE DIAGNOSIS ..........................................792
Trouble Diagnosis Introduction .............................792
DTC Inspection Priority Chart ...............................798
Fail-Safe Chart ......................................................800
Symptom Matrix Chart ..........................................801
Engine Control Component Parts Location ...........805
Vacuum Hose Drawing .........................................814
Circuit Diagram .....................................................815
ECM Harness Connector Terminal Layout ............817
ECM Terminals and Reference Value ...................817
CONSULT-II Function (ENGINE) ..........................826
Generic Scan Tool (GST) Function .......................838
CONSULT-II Reference Value in Data Monitor .....841
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................845
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .847
Description ............................................................847
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EC-10Revision: 2007 April2007 M35/M45 DTC P0127 IAT SENSOR .......................................942
Component Description ........................................942
On Board Diagnosis Logic ....................................942
DTC Confirmation Procedure ...............................942
Diagnostic Procedure ...........................................943
Component Inspection ..........................................944
Removal and Installation ......................................944
DTC P0128 THERMOSTAT FUNCTION .................945
On Board Diagnosis Logic ....................................945
DTC Confirmation Procedure ...............................945
Diagnostic Procedure ...........................................945
Component Inspection ..........................................946
Removal and Installation ......................................946
DTC P0130, P0150 A/F SENSOR 1 ........................947
Component Description ........................................947
CONSULT-II Reference Value in Data Monitor Mode
.947
On Board Diagnosis Logic ....................................947
DTC Confirmation Procedure ...............................947
Overall Function Check ........................................949
Wiring Diagram .....................................................950
Diagnostic Procedure ...........................................953
Removal and Installation ......................................956
DTC P0131, P0151 A/F SENSOR 1 ........................957
Component Description ........................................957
CONSULT-II Reference Value in Data Monitor Mode
.957
On Board Diagnosis Logic ....................................957
DTC Confirmation Procedure ...............................957
Wiring Diagram .....................................................959
Diagnostic Procedure ...........................................962
Removal and Installation ......................................965
DTC P0132, P0152 A/F SENSOR 1 ........................966
Component Description ........................................966
CONSULT-II Reference Value in Data Monitor Mode
.966
On Board Diagnosis Logic ....................................966
DTC Confirmation Procedure ...............................966
Wiring Diagram .....................................................968
Diagnostic Procedure ...........................................971
Removal and Installation ......................................974
DTC P0133, P0153 A/F SENSOR 1 ........................975
Component Description ........................................975
CONSULT-II Reference Value in Data Monitor Mode
.975
On Board Diagnosis Logic ....................................975
DTC Confirmation Procedure ...............................976
Wiring Diagram .....................................................978
Diagnostic Procedure ...........................................981
Removal and Installation ......................................986
DTC P0137, P0157 HO2S2 .....................................987
Component Description ........................................987
CONSULT-II Reference Value in Data Monitor Mode
.987
On Board Diagnosis Logic ....................................987
DTC Confirmation Procedure ...............................988
Overall Function Check ........................................988
Wiring Diagram .....................................................990
Diagnostic Procedure ...........................................993Component Inspection ..........................................996
Removal and Installation .......................................997
DTC P0138, P0158 HO2S2 .....................................998
Component Description ........................................998
CONSULT-II Reference Value in Data Monitor Mode
.998
On Board Diagnosis Logic ....................................998
DTC Confirmation Procedure ................................999
Overall Function Check ........................................1000
Wiring Diagram ....................................................1001
Diagnostic Procedure ...........................................1004
Component Inspection .........................................1009
Removal and Installation ......................................1010
DTC P0139, P0159 HO2S2 ....................................1011
Component Description .......................................1011
CONSULT-II Reference Value in Data Monitor Mode
1011
On Board Diagnosis Logic ...................................1011
DTC Confirmation Procedure ...............................1012
Overall Function Check ........................................1012
Wiring Diagram ....................................................1014
Diagnostic Procedure ...........................................1017
Component Inspection .........................................1020
Removal and Installation ......................................1021
DTC P0171, P0174 FUEL INJECTION SYSTEM
FUNCTION .............................................................1022
On Board Diagnosis Logic ...................................1022
DTC Confirmation Procedure ...............................1022
Wiring Diagram ....................................................1024
Diagnostic Procedure ...........................................1028
DTC P0172, P0175 FUEL INJECTION SYSTEM
FUNCTION .............................................................1033
On Board Diagnosis Logic ...................................1033
DTC Confirmation Procedure ...............................1033
Wiring Diagram ....................................................1035
Diagnostic Procedure ...........................................1039
DTC P0181 FTT SENSOR .....................................1043
Component Description .......................................1043
On Board Diagnosis Logic ...................................1043
DTC Confirmation Procedure ...............................1043
Wiring Diagram ....................................................1045
Diagnostic Procedure ...........................................1046
Component Inspection .........................................1048
Removal and Installation ......................................1048
DTC P0182, P0183 FTT SENSOR .........................1049
Component Description .......................................1049
On Board Diagnosis Logic ...................................1049
DTC Confirmation Procedure ...............................1049
Wiring Diagram ....................................................1050
Diagnostic Procedure ...........................................1051
Component Inspection .........................................1053
Removal and Installation ......................................1053
DTC P0222, P0223 TP SENSOR ...........................1054
Component Description .......................................1054
CONSULT-II Reference Value in Data Monitor Mode
1054
On Board Diagnosis Logic ...................................1054
DTC Confirmation Procedure ...............................1055
Wiring Diagram ....................................................1056