Pressure INFINITI FX35 2006 Service Manual

LANE DEPARTURE WARNING SYSTEM DI-83
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Revision: 2006 December 2006 FX35/FX45
Action TestNKS00314
LDW SYSTEM RUNNING TEST
WARNING:

Be careful when performing road test.

Understand “Precautions” and “System Description” well before the road test. Refer to DI-80,
"Precautions for Lane Departure Warning (LDW) system" and DI-80, "System Description" .
Function Check
Check the LDW system operation according to the condition that the warning function works. Refer to DI-80,
"LDW SYSTEM OPERATION" .
Camera Aiming AdjustmentNKS00315
OUTLINE
Adjust the camera aiming every time the LDW camera unit is removed or installed.
CAUTION:

Place the vehicle on the level ground when the camera aiming adjustment is operated.

Follow the CONSULT-II when adjusting the camera aiming. (Camera aiming adjustment cannot be
operated without CONSULT-II.)
PREPARATION

Keep all tires inflated to correct pressures. Adjust the tire pressure to the specified pressure value.

There is no-load in vehicle. Check if coolant, engine oil are filled up to correct level and fuel tank is full.

Shift the gear into “P” position and release the parking brake.

Clean the windshield.
NOTE:
Do not place anything reflective on the upper surface of instrument panel.
TARGET SETTING
Preparation Aiming Adjustment Jig
For aiming adjustment, prepare the following jigs and targets.
PKIB4693E

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-4Revision: 2006 December 2006 FX35/FX45 Component Inspection .........................................
.345
Removal and Installation ..................................... .345
DTC P0300 - P0306 MULTIPLE CYLINDER MIS-
FIRE, NO. 1 - 6 CYLINDER MISFIRE .................... .346
On Board Diagnosis Logic ................................... .346
DTC Confirmation Procedure .............................. .347
Diagnostic Procedure .......................................... .347
DTC P0327, P0328 KS ........................................... .356
Component Description ....................................... .356
On Board Diagnosis Logic ................................... .356
DTC Confirmation Procedure .............................. .356
Wiring Diagram .................................................... .357
Diagnostic Procedure .......................................... .358
Component Inspection ......................................... .359
Removal and Installation ..................................... .360
DTC P0335 CKP SENSOR (POS) ......................... .361
Component Description ....................................... .361
CONSULT-II Reference Value in Data Monitor Mode .361
On Board Diagnosis Logic ................................... .361
DTC Confirmation Procedure .............................. .362
Wiring Diagram .................................................... .363
Diagnostic Procedure .......................................... .364
Component Inspection ......................................... .367
Removal and Installation ..................................... .367
DTC P0340, P0345 CMP SENSOR (PHASE) ........ .368
Component Description ....................................... .368
CONSULT-II Reference Value in Data Monitor Mode .368
On Board Diagnosis Logic ................................... .368
DTC Confirmation Procedure .............................. .369
Wiring Diagram .................................................... .370
Diagnostic Procedure .......................................... .373
Component Inspection ......................................... .376
Removal and Installation ..................................... .376
DTC P0420, P0430 THREE WAY CATALYST FUNC-
TION ....................................................................... .377
On Board Diagnosis Logic ................................... .377
DTC Confirmation Procedure .............................. .377
Overall Function Check ....................................... .378
Diagnostic Procedure .......................................... .379
DTC P0441 EVAP CONTROL SYSTEM ................ .383
System Description .............................................. .383
On Board Diagnosis Logic ................................... .383
DTC Confirmation Procedure .............................. .383
Overall Function Check ....................................... .384
Diagnostic Procedure .......................................... .385
DTC P0442 EVAP CONTROL SYSTEM ................ .388
On Board Diagnosis Logic ................................... .388
DTC Confirmation Procedure .............................. .389
Diagnostic Procedure .......................................... .390
DTC P0443 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE .............................. .397
Description ........................................................... .397
CONSULT-II Reference Value in Data Monitor Mode .397
On Board Diagnosis Logic ................................... .398
DTC Confirmation Procedure .............................. .398
Wiring Diagram .................................................... .399 Diagnostic Procedure ...........................................
.401
Component Inspection ......................................... .404
Removal and Installation ...................................... .404
DTC P0444, P0445 EVAP CANISTER PURGE VOL-
UME CONTROL SOLENOID VALVE ..................... .405
Description ........................................................... .405
CONSULT-II Reference Value in Data Monitor Mode .405
On Board Diagnosis Logic ................................... .406
DTC Confirmation Procedure ............................... .406
Wiring Diagram .................................................... .407
Diagnostic Procedure ........................................... .409
Component Inspection ......................................... .410
Removal and Installation ...................................... .411
DTC P0447 EVAP CANISTER VENT CONTROL
VALVE ..................................................................... .412
Component Description ....................................... .412
CONSULT-II Reference Value in Data Monitor Mode .412
On Board Diagnosis Logic ................................... .412
DTC Confirmation Procedure ............................... .413
Wiring Diagram .................................................... .414
Diagnostic Procedure ........................................... .415
Component Inspection ......................................... .417
DTC P0448 EVAP CANISTER VENT CONTROL
VALVE ..................................................................... .419
Component Description ....................................... .419
CONSULT-II Reference Value in Data Monitor Mode .419
On Board Diagnosis Logic ................................... .419
DTC Confirmation Procedure ............................... .420
Wiring Diagram .................................................... .421
Diagnostic Procedure ........................................... .422
Component Inspection ......................................... .423
DTC P0451 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................. .425
Component Description ....................................... .425
CONSULT-II Reference Value in Data Monitor Mode .425
On Board Diagnosis Logic ................................... .425
DTC Confirmation Procedure ............................... .426
Diagnostic Procedure ........................................... .426
Component Inspection ......................................... .427
DTC P0452 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................. .428
Component Description ....................................... .428
CONSULT-II Reference Value in Data Monitor Mode .428
On Board Diagnosis Logic ................................... .428
DTC Confirmation Procedure ............................... .429
Wiring Diagram .................................................... .430
Diagnostic Procedure ........................................... .431
Component Inspection ......................................... .433
DTC P0453 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................. .434
Component Description ....................................... .434
CONSULT-II Reference Value in Data Monitor Mode .434
On Board Diagnosis Logic ................................... .434

EC-7
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Revision: 2006 December 2006 FX35/FX45 CONSULT-II Reference Value in Data Monitor Mode
. 589
On Board Diagnosis Logic .................................. . 589
DTC Confirmation Procedure .............................. . 590
Wiring Diagram ................................................... . 591
Diagnostic Procedure .......................................... . 592
Component Inspection ........................................ . 595
Removal and Installation ..................................... . 595
DTC P2138 APP SENSOR .................................... . 596
Component Description ....................................... . 596
CONSULT-II Reference Value in Data Monitor Mode . 596
On Board Diagnosis Logic .................................. . 596
DTC Confirmation Procedure .............................. . 597
Wiring Diagram ................................................... . 598
Diagnostic Procedure .......................................... . 599
Component Inspection ........................................ . 603
Removal and Installation ..................................... . 603
DTC P2A00, P2A03 A/F SENSOR 1 ..................... . 604
Component Description ....................................... . 604
CONSULT-II Reference Value in Data Monitor Mode . 604
On Board Diagnosis Logic .................................. . 604
DTC Confirmation Procedure .............................. . 605
Wiring Diagram ................................................... . 606
Diagnostic Procedure .......................................... . 609
Removal and Installation ..................................... . 615
ASCD BRAKE SWITCH ........................................ . 616
Component Description ....................................... . 616
CONSULT-II Reference Value in Data Monitor Mode . 616
Wiring Diagram ................................................... . 617
Diagnostic Procedure .......................................... . 618
Component Inspection ........................................ . 622
ASCD INDICATOR ................................................ . 623
Component Description ....................................... . 623
CONSULT-II Reference Value in Data Monitor Mode . 623
Wiring Diagram ................................................... . 624
Diagnostic Procedure .......................................... . 625
ELECTRICAL LOAD SIGNAL ............................... . 626
Description .......................................................... . 626
CONSULT-II Reference Value in Data Monitor Mode . 626
Diagnostic Procedure .......................................... . 626
FUEL INJECTOR ................................................... . 628
Component Description ....................................... . 628
CONSULT-II Reference Value in Data Monitor Mode . 628
Wiring Diagram ................................................... . 629
Diagnostic Procedure .......................................... . 630
Component Inspection ........................................ . 634
Removal and Installation ..................................... . 634
FUEL PUMP .......................................................... . 635
Description .......................................................... . 635
CONSULT-II Reference Value in Data Monitor Mode . 635
Wiring Diagram ................................................... . 636 Diagnostic Procedure ..........................................
.637
Component Inspection ......................................... .640
Removal and Installation ..................................... .640
ICC BRAKE SWITCH ............................................ .641
Component Description ....................................... .641
CONSULT-II Reference Value in Data Monitor Mode .641
Wiring Diagram .................................................... .642
Diagnostic Procedure .......................................... .643
Component Inspection ......................................... .648
IGNITION SIGNAL ................................................. .649
Component Description ....................................... .649
Wiring Diagram .................................................... .650
Diagnostic Procedure .......................................... .655
Component Inspection ......................................... .660
Removal and Installation ..................................... .661
REFRIGERANT PRESSURE SENSOR ................. .662
Component Description ....................................... .662
Wiring Diagram .................................................... .663
Diagnostic Procedure .......................................... .664
Removal and Installation ..................................... .666
SNOW MODE SWITCH ......................................... .667
Description ........................................................... .667
CONSULT-II Reference Value in the Data Monitor
Mode .................................................................... .667
Wiring Diagram .................................................... .668
Diagnostic Procedure .......................................... .669
Component Inspection ......................................... .671
MIL AND DATA LINK CONNECTOR ..................... .672
Wiring Diagram .................................................... .672
SERVICE DATA AND SPECIFICATIONS (SDS) ... .674
Fuel Pressure ...................................................... .674
Idle Speed and Ignition Timing ............................ .674
Calculated Load Value ......................................... .674
Mass Air Flow Sensor .......................................... .674
Intake Air Temperature Sensor ............................ .674
Engine Coolant Temperature Sensor .................. .674
Air Fuel Ratio (A/F) Sensor 1 Heater ................... .674
Heated Oxygen sensor 2 Heater ......................... .674
Crankshaft Position Sensor (POS) ...................... .674
Camshaft Position Sensor (PHASE) ................... .674
Throttle Control Motor .......................................... .674
Fuel Injector ......................................................... .675
Fuel Pump ........................................................... .675
VK45DE
INDEX FOR DTC .................................................... .676
DTC No. Index ..................................................... .676
Alphabetical Index ............................................... .680
PRECAUTIONS ..................................................... .684
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .............................................................. .684
Precautions for Procedures without Cowl Top Cover .684
On Board Diagnostic (OBD) System of Engine and
A/T ....................................................................... .684
Precaution ........................................................... .685

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

EC-11
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Revision: 2006 December 2006 FX35/FX45 CONTROL SOLENOID VALVE .............................
1063
Description .......................................................... 1063
CONSULT-II Reference Value in Data Monitor Mode 1063
On Board Diagnosis Logic .................................. 1064
DTC Confirmation Procedure .............................. 1064
Wiring Diagram ................................................... 1065
Diagnostic Procedure .......................................... 1067
Component Inspection ........................................ 1070
Removal and Installation ..................................... 1070
DTC P0444, P0445 EVAP CANISTER PURGE VOL-
UME CONTROL SOLENOID VALVE .................... 1071
Description .......................................................... 1071
CONSULT-II Reference Value in Data Monitor Mode 1071
On Board Diagnosis Logic .................................. 1072
DTC Confirmation Procedure .............................. 1072
Wiring Diagram ................................................... 1073
Diagnostic Procedure .......................................... 1075
Component Inspection ........................................ 1076
Removal and Installation ..................................... 1077
DTC P0447 EVAP CANISTER VENT CONTROL
VALVE .................................................................... 1078
Component Description ....................................... 1078
CONSULT-II Reference Value in Data Monitor Mode 1078
On Board Diagnosis Logic .................................. 1078
DTC Confirmation Procedure .............................. 1079
Wiring Diagram ................................................... 1080
Diagnostic Procedure .......................................... 1081
Component Inspection ........................................ 1083
DTC P0448 EVAP CANISTER VENT CONTROL
VALVE .................................................................... 1085
Component Description ....................................... 1085
CONSULT-II Reference Value in Data Monitor Mode 1085
On Board Diagnosis Logic .................................. 1085
DTC Confirmation Procedure .............................. 1086
Wiring Diagram ................................................... 1087
Diagnostic Procedure .......................................... 1088
Component Inspection ........................................ 1089
DTC P0451 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................ 1091
Component Description ....................................... 1091
CONSULT-II Reference Value in Data Monitor Mode 1091
On Board Diagnosis Logic .................................. 1091
DTC Confirmation Procedure .............................. 1092
Diagnostic Procedure .......................................... 1092
Component Inspection ........................................ 1093
DTC P0452 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................ 1094
Component Description ....................................... 1094
CONSULT-II Reference Value in Data Monitor Mode 1094
On Board Diagnosis Logic .................................. 1094
DTC Confirmation Procedure .............................. 1095
Wiring Diagram ................................................... 1096 Diagnostic Procedure ..........................................
1097
Component Inspection ......................................... 1099
DTC P0453 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................ 110 0
Component Description ....................................... 11 0 0
CONSULT-II Reference Value in Data Monitor Mode 11 0 0
On Board Diagnosis Logic ................................... 11 0 0
DTC Confirmation Procedure .............................. 11 0 1
Wiring Diagram .................................................... 11 0 2
Diagnostic Procedure .......................................... 11 0 3
Component Inspection ......................................... 11 0 7
DTC P0455 EVAP CONTROL SYSTEM ................ 110 8
On Board Diagnosis Logic ................................... 11 0 8
DTC Confirmation Procedure .............................. 11 0 9
Diagnostic Procedure ..........................................1110
DTC P0456 EVAP CONTROL SYSTEM ................ 111 6
On Board Diagnosis Logic ...................................1116
DTC Confirmation Procedure ..............................1117
Overall Function Check .......................................1118
Diagnostic Procedure ..........................................1119
DTC P0460 FUEL LEVEL SENSOR ...................... 112 5
Component Description ....................................... 11 2 5
On Board Diagnosis Logic ................................... 11 2 5
DTC Confirmation Procedure .............................. 11 2 5
Diagnostic Procedure .......................................... 11 2 6
Removal and Installation ..................................... 11 2 6
DTC P0461 FUEL LEVEL SENSOR ...................... 112 7
Component Description ....................................... 11 2 7
On Board Diagnosis Logic ................................... 11 2 7
Overall Function Check ....................................... 11 2 7
Diagnostic Procedure .......................................... 11 2 8
Removal and Installation ..................................... 11 2 8
DTC P0462, P0463 FUEL LEVEL SENSOR ......... 112 9
Component Description ....................................... 11 2 9
On Board Diagnosis Logic ................................... 11 2 9
DTC Confirmation Procedure .............................. 11 2 9
Diagnostic Procedure .......................................... 11 3 0
Removal and Installation ..................................... 11 3 0
DTC P0500 VSS ..................................................... 113 1
Description ........................................................... 11 3 1
On Board Diagnosis Logic ................................... 11 3 1
DTC Confirmation Procedure .............................. 11 3 1
Overall Function Check ....................................... 11 3 2
Diagnostic Procedure .......................................... 11 3 2
DTC P0506 ISC SYSTEM ...................................... 113 3
Description ........................................................... 11 3 3
On Board Diagnosis Logic ................................... 11 3 3
DTC Confirmation Procedure .............................. 11 3 3
Diagnostic Procedure .......................................... 11 3 4
DTC P0507 ISC SYSTEM ...................................... 113 5
Description ........................................................... 11 3 5
On Board Diagnosis Logic ................................... 11 3 5
DTC Confirmation Procedure .............................. 11 3 5
Diagnostic Procedure .......................................... 11 3 6
DTC P0550 PSP SENSOR .................................... 113 7
Component Description ....................................... 11 3 7
CONSULT-II Reference Value in Data Monitor Mode 11 3 7

EC-14Revision: 2006 December 2006 FX35/FX45 CONSULT-II Reference Value in Data Monitor Mode
1295
Wiring Diagram .................................................... 1296
Diagnostic Procedure .......................................... 1297
Component Inspection ......................................... 1301
ASCD INDICATOR ................................................. 1302
Component Description ....................................... 1302
CONSULT-II Reference Value in Data Monitor Mode 1302
Wiring Diagram .................................................... 1303
Diagnostic Procedure .......................................... 1304
ELECTRICAL LOAD SIGNAL ............................... 1305
Description ........................................................... 1305
CONSULT-II Reference Value in Data Monitor Mode 1305
Diagnostic Procedure .......................................... 1305
FUEL INJECTOR ................................................... 1307
Component Description ....................................... 1307
CONSULT-II Reference Value in Data Monitor Mode 1307
Wiring Diagram .................................................... 1308
Diagnostic Procedure .......................................... 1309
Component Inspection ......................................... 1313
Removal and Installation ..................................... 1313
FUEL PUMP ........................................................... 1314
Description ........................................................... 1314
CONSULT-II Reference Value in Data Monitor Mode 1314
Wiring Diagram .................................................... 1315
Diagnostic Procedure .......................................... 1316
Component Inspection ......................................... 1319
Removal and Installation ..................................... 1319
ICC BRAKE SWITCH ............................................. 1320
Component Description ....................................... 1320
CONSULT-II Reference Value in Data Monitor Mode 1320
Wiring Diagram .................................................... 1321
Diagnostic Procedure .......................................... 1322
Component Inspection ......................................... 1327
IGNITION SIGNAL ................................................. 1328
Component Description ....................................... 1328
Wiring Diagram .................................................... 1329 Diagnostic Procedure ...........................................
1334
Component Inspection ......................................... 1339
Removal and Installation ...................................... 1340
REFRIGERANT PRESSURE SENSOR ................. 1341
Component Description ....................................... 1341
Wiring Diagram .................................................... 1342
Diagnostic Procedure ........................................... 1343
Removal and Installation ...................................... 1345
SNOW MODE SWITCH .......................................... 1346
Description ........................................................... 1346
CONSULT-II Reference Value in the Data Monitor
Mode .................................................................... 1346
Wiring Diagram .................................................... 1347
Diagnostic Procedure ........................................... 1348
Component Inspection ......................................... 1350
VARIABLE INDUCTION AIR CONTROL SYSTEM
(VIAS) ..................................................................... 1351
Description ........................................................... 1351
CONSULT-II Reference Value in Data Monitor Mode 1352
Wiring Diagram .................................................... 1353
Diagnostic Procedure ........................................... 1355
Component Inspection ......................................... 1358
Removal and Installation ...................................... 1359
MIL AND DATA LINK CONNECTOR ..................... 1360
Wiring Diagram .................................................... 1360
SERVICE DATA AND SPECIFICATIONS (SDS) ... 1362
Fuel Pressure ....................................................... 1362
Idle Speed and Ignition Timing ............................. 1362
Calculated Load Value ......................................... 1362
Mass Air Flow Sensor .......................................... 1362
Intake Air Temperature Sensor ............................ 1362
Engine Coolant Temperature Sensor ................... 1362
Fuel Tank Temperature Sensor ............................ 1362
Crankshaft Position Sensor (POS) ...................... 1362
Camshaft Position Sensor (PHASE) .................... 1362
A/F Sensor 1 Heater ............................................ 1362
Heated Oxygen sensor 2 Heater ......................... 1363
Throttle Control Motor .......................................... 1363
Fuel Injector ......................................................... 1363
Fuel Pump ............................................................ 1363

PREPARATION EC-27
[VQ35DE]
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Revision: 2006 December 2006 FX35/FX45
PREPARATIONPFP:00002
Special Service ToolsNBS003KZ
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here. Tool number
(Kent-Moore No.)
Tool name Description
KV10117100
(J-36471-A)
Heated oxygen
sensor wrench Loosening or tightening heated oxygen sensor
with 22 mm (0.87 in) hexagon nut
KV10114400
(J-38365)
Heated oxygen
sensor wrench Loosening or tightening air fuel ratio (A/F) sensor
a: 22 mm (0.87 in)
(J-44321)
Fuel pressure gauge
kit Checking fuel pressure
(J-44321-6)
Fuel pressure adapter Connecting fuel pressure gauge to quick
connector type fuel lines.
(J-44626)
Air fuel ratio (A/F)
sensor wrench Loosening or tightening air fuel ratio (A/F) sensor
1
(J-45488)
Quick connector
release Remove fuel tube quick connectors in engine
room.
S-NT379
S-NT636
LEC642
LBIA0376E
LEM054
PBIC0198E

PREPARATION EC-29
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Revision: 2006 December 2006 FX35/FX45
Commercial Service ToolsNBS003L0
Tool name
(Kent-Moore No.) Description
Leak detector
i.e.: (J-41416) Locating EVAP leak
EVAP service port
adapter
i.e.: (J-41413-OBD) Applying positive pressure through EVAP service
port
Fuel filler cap adapter
i.e.: (MLR-8382) Checking fuel tank vacuum relief valve opening
pressure
Socket wrench Removing and installing engine coolant temperature sensor
Oxygen sensor thread
cleaner
i.e.: (J-43897-18)
(J-43897-12) Reconditioning the exhaust system threads
before installing a new oxygen sensor. Use with
anti-seize lubricant shown below.
a: 18 mm diameter with pitch 1.5 mm for
Zirconia Oxygen Sensor
b: 12 mm diameter with pitch 1.25 mm for
Titania Oxygen Sensor
Anti-seize lubricant
i.e.: (Permatex
TM
133AR or equivalent
meeting MIL
specification MIL-A-
907) Lubricating oxygen sensor thread cleaning tool
when reconditioning exhaust system threads.
S-NT703
S-NT704
S-NT815
S-NT705
AEM488
S-NT779

ENGINE CONTROL SYSTEM EC-31
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Revision: 2006 December 2006 FX35/FX45
Multiport Fuel Injection (MFI) SystemNBS003L2
INPUT/OUTPUT SIGNAL CHART
*1: This sensor is not used to control the engine system under normal conditions.
*2: This signal is sent to the ECM through CAN communication line.
*3: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
The amount of fuel injected from the fuel injector is determined by the ECM. The ECM controls the length of
time the valve remains open (injection pulse duration). The amount of fuel injected is a program value in the
ECM memory. The program value is preset by engine operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from both the crankshaft position sensor and the mass air
flow sensor.
VARIOUS FUEL INJECTION INCREASE/DECREASE COMPENSATION
In addition, the amount of fuel injected is compensated to improve engine performance under various operat-
ing conditions as listed below.


During warm-up

When starting the engine

During acceleration

Hot-engine operation

When selector lever is changed from N to D

High-load, high-speed operation


During deceleration

During high engine speed operation
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS) Engine speed*
3
Piston position
Fuel injection
& mixture ratio
control Fuel injector
Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Park/neutral position (PNP) switch Gear position
Knock sensor Engine knocking condition
Battery Battery voltage*
3
Power steering pressure sensor Power steering operation
Heated oxygen sensor 2*
1Density of oxygen in exhaust gas
Air conditioner switch Air conditioner operation*
2
Wheel sensorVehicle speed*2