2008 INFINITI FX35 check engine

DI-44
< SERVICE INFORMATION >
WARNING LAMPS
2.CHECK IPDM E/R INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between IPDM E/R harness connector E9 termi- nal 57 and ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-24, "Removal and
Installation of IPDM E/R".
NG >> GO TO 3.
3.CHECK OIL PRESSURE SWITCH
1. Turn ignition switch OFF.
2. Disconnect oil pressure switch connector.
3. Check oil pressure switch. Refer to DI-46, "
Component Inspection".
OK or NG
OK >> GO TO 4.
NG >> Replace oil pressure switch.
4.CHECK OIL PRESSURE SWITCH CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check continuity between IPDM E/R harness connector E9 ter- minal 57 and oil pressure switch harness connector F1 terminal
1.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-24, "Removal and
Installation of IPDM E/R".
NG >> Repair harness or connector.
5.CHECK UNIFIED METER AND A/C AMP. (CONSULT-III)
Perform self-diagnosis of unified meter and A/C amp. Refer to DI-27, "
CONSULT-III Function (METER/M&A)".
Self-diagnosis results
No malfunction detected >> GO TO 6.
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts.
6.CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. Operate ignition switch with “OIL W/L” of “Data Monitor” and check operation status.
OK or NG
OK >> Replace combination meter.
NG >> GO TO 7.
7.CHECK BCM INPUT SIGNAL
1. Select “BCM” on CONSULT-III.
2. Select “Data Monitor” of “SIGNAL BUFFER”. 57 – Ground : Approx. 0 V
SKIB6449E
57 – 1 : Continuity should exist.
PKIB3572E
“OIL W/L”
When ignition switch is in ON
position (Engine stopped)
: On
When engine running : Off
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WARNING LAMPSDI-45
< SERVICE INFORMATION >
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3. Operate ignition switch with “OIL PRESS SW ” of “Data Monitor” and check operate status.
OK or NG
OK >> Replace BCM. Refer to BCS-13, "Removal and Installation of BCM".
NG >> Replace IPDM E/R. Refer to PG-24, "
Removal and Installation of IPDM E/R".
Oil Pressure Warning Lamp Does Not Turn Off (Oil Pressure Is Normal)INFOID:0000000001328468
NOTE:
For oil pressure inspection, refer to LU-5, "
Inspection" (VQ35DE) or LU-23, "Inspection" (VK45DE)
1.CHECK OIL PRESSURE WARNING LAMP OPERATION
Activate IPDM E/R auto active test. Refer to PG-20, "
Auto Active Test".
Does oil pressure warning lamp blink?
YES >> GO TO 2.
NO >> GO TO 5.
2.CHECK IPDM E/R OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect oil pressure switch connector.
3. Turn ignition switch ON.
4. Check voltage between oil pressure switch harness connector F1 terminal 1 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3.CHECK OIL PRESSURE SWITCH
1. Turn ignition switch OFF.
2. Check oil pressure switch. Refer to DI-46, "
Component Inspection".
OK or NG
OK >> Replace IPDM E/R. Refer to PG-24, "Removal and Installation of IPDM E/R".
NG >> Replace oil pressure switch.
4.CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector E9 ter- minal 57 and ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-24, "Removal and
Installation of IPDM E/R".
NG >> Repair harness or connector. “OIL PRESS SW”
When ignition switch is in ON
position (Engine stopped)
: On
When engine running : Off
1 – Ground : Approx. 12 V
PKIB3573E
57 – Ground : Continuity should not exist.
SKIA5013E
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DI-46
< SERVICE INFORMATION >
WARNING LAMPS
5.CHECK IPDM E/R (CONSULT-III)
Perform self-diagnosis of IPDM E/R. Refer to PG-18, "
CONSULT-III Function (IPDM E/R)".
Self-diagnosis results
No malfunction detected >> Replace combination meter.
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts.
Component InspectionINFOID:0000000001328469
OIL PRESSURE SWITCH
Check continuity between oil pressure switch and ground.
Condition
Oil pressure [kPa (kg/cm2, psi)]Continuity
Engine stopped Less than 29 (0.3, 4) Yes Engine running More than 29 (0.3, 4) No
ELF0044D
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LANE DEPARTURE WARNING SYSTEMDI-71
< SERVICE INFORMATION >
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NOTE:
*: This indicates in a few seconds for the system check during ignition switch ON.
POWER SUPPLY AND GROUND CIRCUIT
With the ignition switch in the ON or START position, power is supplied
 through 10A fuse [No. 12, located in the fuse block (J/B)]
 to LDW camera unit terminal 1.
Ground is supplied
 to LDW camera unit terminals 6 and 12
 through grounds M45, M85 and M35.
Action TestINFOID:0000000001328494
LDW SYSTEM RUNNING TEST
WARNING:
 Be careful when performing road test.
 Understand “Precautions” and “System Description” well before the road test. Refer to DI-69, "
Pre-
caution for Lane Departure Warning (LDW) system" and DI-69, "System Description".
Function Check
Check the LDW system operation according to the c ondition that the warning function works. Refer to DI-69,
"System Description".
Camera Aiming AdjustmentINFOID:0000000001328495
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-III when ad justing the camera aiming. (Camera aiming adjustment cannot be
operated without CONSULT-III.)
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 t he upper surface of instrument panel.
TARGET SETTING
Preparation Aiming Adjustment Jig
Component Description
LDW camera unit Detects the lane marker by the built-in camera, gives judgement for the warning according to the result
of detection and signals from each unit, and transmits the operation signal to LDW chime and LDW
indicator lamp.
LDW switch  Selects ON/OFF of the system.
 Indicates ON/OFF of the signal with LDW system ON indicator.
LDW chime Gives a warning chime according to the direction from LDW camera unit.
LDW indicator lamp Installed in combination meter, and indicates the system condition.
 Blinks when LDW system is functioning to alert the driver.
 Stays on when LDW system is malfunctioning.
*
BCM Transmits turn indicator signal to LDW camera unit with CAN communication signal.
ABS actuator and electric unit
(control unit)
Transmits vehicle speed signal to LDW camera unit with CAN communication signal.
TCM Transmits vehicle speed signal to LDW camera unit with CAN communication signal. (For detecting
incorrect speed.)
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EC-1
ENGINE
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CONTENTS
ENGINE CONTROL SYSTEM
VQ35DE
SERVICE INFORMATION .. .........................
17
INDEX FOR DTC ............................................ ....17
DTC No. Index .................................................... ....17
Alphabetical Index ...................................................20
PRECAUTIONS ..................................................25
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
25
Precaution for Procedure without Cowl Top Cover ....25
On Board Diagnosis (OBD) System of Engine and
A/T ...........................................................................
25
Precaution ...............................................................26
PREPARATION ..................................................29
Special Service Tool ........................................... ....29
Commercial Service Tool ........................................30
ENGINE CONTROL SYSTEM ............................31
Schematic ........................................................... ....31
Multiport Fuel Injection (MFI) System .....................31
Electronic Ignition (EI) System ................................34
Fuel Cut Control (at No Load and High Engine
Speed) .....................................................................
34
AIR CONDITIONING CUT CONTROL ...............36
Input/Output Signal Chart .................................... ....36
System Description .................................................36
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) ...............................................................
37
System Description ............................................. ....37
Component Description ...........................................38
CAN COMMUNICATION ....................................39
System Description ............................................. ....39
EVAPORATIVE EMISSION SYSTEM ................40
Description .......................................................... ....40
Component Inspection ......................................... ....42
Removal and Installation .........................................44
How to Detect Fuel Vapor Leakage .........................44
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) ......................................................
46
System Description ..................................................46
Diagnosis Procedure ...............................................46
Component Inspection .............................................48
POSITIVE CRANKCASE VENTILATION .........51
Description ...............................................................51
Component Inspection .............................................51
IVIS (INFINITI VEHICLE IMMOBILIZER SYS-
TEM-NATS) .......................................................
53
Description ...............................................................53
ON BOARD DIAGNOSTIC (OBD) SYSTEM ....54
Introduction ..............................................................54
Two Trip Detection Logic .........................................54
Emission-Related Diagnostic Information ................55
Malfunction Indicator Lamp (MIL) ............................71
OBD System Operation Chart .................................74
BASIC SERVICE PROCEDURE .......................80
Basic Inspection ......................................................80
Idle Speed and Ignition Timing Check .....................84
Procedure After Replacing ECM .............................84
VIN Registration ......................................................84
Accelerator Pedal Released Position Learning .......85
Throttle Valve Closed Position Learning .................85
Idle Air Volume Learning .........................................85
Fuel Pressure Check ...............................................87
TROUBLE DIAGNOSIS ....................................89
Trouble Diagnosis Introduction ................................89
DTC Inspection Priority Chart ..................................93
Fail-Safe Chart ........................................................95
Symptom Matrix Chart .............................................96
Engine Control Component Parts Location ...........100
Vacuum Hose Drawing ..........................................106
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EC-2
Circuit Diagram ......................................................107
ECM Harness Connector Terminal Layout ............109
ECM Terminal and Reference Value .....................109
CONSULT-III Function (ENGINE) .........................117
Generic Scan Tool (GST) Function .......................125
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
127
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE .............................................................
131
Description ........................................................... ..131
Testing Condition ...................................................131
Inspection Procedure .............................................131
Diagnosis Procedure .............................................131
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT ........................................................
139
Description ........................................................... ..139
Diagnosis Procedure .............................................139
POWER SUPPLY AND GROUND CIRCUIT ...140
Wiring Diagram .................................................... ..140
Diagnosis Procedure .............................................141
Ground Inspection .................................................144
DTC U1000, U1001 CAN COMMUNICATION
LINE .................................................................
146
Description ........................................................... ..146
On Board Diagnosis Logic .....................................146
DTC Confirmation Procedure ................................146
Wiring Diagram ......................................................147
Diagnosis Procedure .............................................147
DTC U1010 CAN COMMUNICATION .............148
Description ........................................................... ..148
On Board Diagnosis Logic .....................................148
DTC Confirmation Procedure ................................148
Diagnosis Procedure .............................................148
DTC P0011, P0021 IVT CONTROL .................149
Description ........................................................... ..149
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
149
On Board Diagnosis Logic .....................................150
DTC Confirmation Procedure ................................150
Diagnosis Procedure .............................................151
Component Inspection ...........................................152
Removal and Installation .......................................152
DTC P0031, P0032, P0051, P0052 A/F SEN-
SOR 1 HEATER ...............................................
153
Description ........................................................... ..153
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
153
On Board Diagnosis Logic .....................................153
DTC Confirmation Procedure ................................153
Wiring Diagram ......................................................154
Diagnosis Procedure .............................................157
Component Inspection ...........................................158
Removal and Installation .......................................159
DTC P0037, P0038, P0057, P0058 HO2S2
HEATER ...........................................................
160
Description ........................................................... .160
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
160
On Board Diagnosis Logic ....................................160
DTC Confirmation Procedure ................................160
Wiring Diagram .....................................................162
Diagnosis Procedure .............................................165
Component Inspection ..........................................166
Removal and Installation .......................................167
DTC P0075, P0081 IVT CONTROL SOLE-
NOID VALVE ....................................................
168
Component Description ....................................... .168
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
168
On Board Diagnosis Logic ....................................168
DTC Confirmation Procedure ................................168
Wiring Diagram .....................................................169
Diagnosis Procedure .............................................172
Component Inspection ..........................................173
Removal and Installation .......................................174
DTC P0101 MAF SENSOR ..............................175
Component Description ....................................... .175
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
175
On Board Diagnosis Logic ....................................175
DTC Confirmation Procedure ................................175
Overall Function Check .........................................176
Wiring Diagram .....................................................177
Diagnosis Procedure .............................................178
Component Inspection ..........................................180
Removal and Installation .......................................181
DTC P0102, P0103 MAF SENSOR ..................182
Component Description ....................................... .182
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
182
On Board Diagnosis Logic ....................................182
DTC Confirmation Procedure ................................182
Wiring Diagram .....................................................184
Diagnosis Procedure .............................................185
Component Inspection ..........................................187
Removal and Installation .......................................188
DTC P0112, P0113 IAT SENSOR ....................189
Component Description ....................................... .189
On Board Diagnosis Logic ....................................189
DTC Confirmation Procedure ................................189
Wiring Diagram .....................................................190
Diagnosis Procedure .............................................190
Component Inspection ..........................................192
Removal and Installation .......................................192
DTC P0117, P0118 ECT SENSOR ...................193
Component Description ....................................... .193
On Board Diagnosis Logic ....................................193
DTC Confirmation Procedure ................................194
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EC-6
Diagnosis Procedure .............................................420
DTC P0605 ECM ..............................................422
Component Description ....................................... ..422
On Board Diagnosis Logic .....................................422
DTC Confirmation Procedure ................................422
Diagnosis Procedure .............................................423
DTC P0643 SENSOR POWER SUPPLY ........424
On Board Diagnosis Logic ................................... ..424
DTC Confirmation Procedure ................................424
Wiring Diagram ......................................................425
Diagnosis Procedure .............................................426
DTC P0850 PNP SWITCH ...............................429
Component Description ....................................... ..429
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
429
On Board Diagnosis Logic .....................................429
DTC Confirmation Procedure ................................429
Overall Function Check .........................................430
Wiring Diagram ......................................................431
Diagnosis Procedure .............................................432
DTC P1148, P1168 CLOSED LOOP CON-
TROL ................................................................
434
On Board Diagnosis Logic ................................... ..434
DTC P1211 TCS CONTROL UNIT ..................435
Description ........................................................... ..435
On Board Diagnosis Logic .....................................435
DTC Confirmation Procedure ................................435
Diagnosis Procedure .............................................435
DTC P1212 TCS COMMUNICATION LINE .....436
Description ........................................................... ..436
On Board Diagnosis Logic .....................................436
DTC Confirmation Procedure ................................436
Diagnosis Procedure .............................................436
DTC P1217 ENGINE OVER TEMPERATURE .437
Description ........................................................... ..437
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
438
On Board Diagnosis Logic .....................................438
Overall Function Check .........................................439
Wiring Diagram ......................................................440
Diagnosis Procedure .............................................441
Main 12 Causes of Overheating ............................445
Component Inspection ...........................................446
DTC P1225 TP SENSOR .................................447
Component Description ....................................... ..447
On Board Diagnosis Logic .....................................447
DTC Confirmation Procedure ................................447
Diagnosis Procedure .............................................447
Removal and Installation .......................................448
DTC P1226 TP SENSOR .................................449
Component Description ....................................... ..449
On Board Diagnosis Logic .....................................449
DTC Confirmation Procedure ............................... .449
Diagnosis Procedure .............................................449
Removal and Installation .......................................450
DTC P1421 COLD START CONTROL ............451
Description ........................................................... .451
On Board Diagnosis Logic ....................................451
DTC Confirmation Procedure ................................451
Diagnosis Procedure .............................................451
DTC P1564 ICC STEERING SWITCH ..............453
Component Description ....................................... .453
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
453
On Board Diagnosis Logic ....................................453
DTC Confirmation Procedure ................................453
Wiring Diagram .....................................................455
Diagnosis Procedure .............................................456
Component Inspection ..........................................458
DTC P1564 ASCD STEERING SWITCH ..........459
Component Description ....................................... .459
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
459
On Board Diagnosis Logic ....................................459
DTC Confirmation Procedure ................................459
Wiring Diagram .....................................................460
Diagnosis Procedure .............................................461
Component Inspection ..........................................463
DTC P1568 ICC FUNCTION .............................464
On Board Diagnosis Logic ................................... .464
DTC Confirmation Procedure ................................464
Diagnosis Procedure .............................................464
DTC P1572 ICC BRAKE SWITCH ...................465
Component Description ....................................... .465
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
465
On Board Diagnosis Logic ....................................465
DTC Confirmation Procedure ................................465
Wiring Diagram .....................................................467
Diagnosis Procedure .............................................468
Component Inspection ..........................................472
DTC P1572 ASCD BRAKE SWITCH ...............474
Component Description ....................................... .474
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
474
On Board Diagnosis Logic ....................................474
DTC Confirmation Procedure ................................474
Wiring Diagram .....................................................476
Diagnosis Procedure .............................................477
Component Inspection ..........................................480
DTC P1574 ICC VEHICLE SPEED SENSOR ..481
Component Description ........................................481
On Board Diagnosis Logic ....................................481
DTC Confirmation Procedure ................................481
Diagnosis Procedure .............................................481
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EC-9
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Removal and Installation .....................................
..
622
How to Detect Fuel Vapor Leakage ......................622
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) .....................................................
624
System Description ............................................. ..624
Diagnosis Procedure .............................................624
Component Inspection ..........................................626
POSITIVE CRANKCASE VENTILATION ........629
Description .......................................................... ..629
Component Inspection ..........................................629
IVIS (INFINITI VEHICLE IMMOBILIZER SYS-
TEM-NATS) ......................................................
631
Description .......................................................... ..631
ON BOARD DIAGNOSTIC (OBD) SYSTEM ....632
Introduction ......................................................... ..632
Two Trip Detection Logic ......................................632
Emission-related Diagnostic Information ...............633
Malfunction Indicator Lamp (MIL) ..........................649
OBD System Operation Chart ...............................652
BASIC SERVICE PROCEDURE ......................658
Basic Inspection .................................................. ..658
Idle Speed and Ignition Timing Check ..................661
Procedure After Replacing ECM ...........................662
VIN Registration ....................................................662
Accelerator Pedal Released Position Learning .....662
Throttle Valve Closed Position Learning ...............663
Idle Air Volume Learning .......................................663
Fuel Pressure Check .............................................665
TROUBLE DIAGNOSIS ...................................666
Trouble Diagnosis Introduction ........................... ..666
DTC Inspection Priority Chart ...............................670
Fail-Safe Chart ......................................................671
Symptom Matrix Chart ..........................................673
Engine Control Component Parts Location ...........677
Vacuum Hose Drawing .........................................684
Circuit Diagram .....................................................685
ECM Harness Connector Terminal Layout ...........687
ECM Terminal and Reference Value ....................687
CONSULT-III Function (ENGINE) .........................695
Generic Scan Tool (GST) Function .......................704
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
705
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE ..............................................................
709
Description .......................................................... ..709
Testing Condition ..................................................709
Inspection Procedure ............................................709
Diagnosis Procedure .............................................710
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT .........................................................
717
Description .......................................................... ..717
Diagnosis Procedure .............................................717
POWER SUPPLY AND GROUND CIRCUIT ..718
Wiring Diagram .................................................... ..718
Diagnosis Procedure .............................................719
Ground Inspection .................................................723
DTC U1000, U1001 CAN COMMUNICATION
LINE .................................................................
724
Description .............................................................724
On Board Diagnosis Logic .....................................724
DTC Confirmation Procedure ................................724
Wiring Diagram ......................................................725
Diagnosis Procedure .............................................725
DTC U1010 CAN COMMUNICATION .............726
Description .............................................................726
On Board Diagnosis Logic .....................................726
DTC Confirmation Procedure ................................726
Diagnosis Procedure .............................................726
DTC P0011, P0021 IVT CONTROL ................727
Description .............................................................727
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
728
On Board Diagnosis Logic .....................................728
DTC Confirmation Procedure ................................728
Wiring Diagram ......................................................730
Diagnosis Procedure .............................................733
Component Inspection ...........................................737
Removal and Installation .......................................738
DTC P0031, P0032, P0051, P0052 A/F SEN-
SOR 1 HEATER ..............................................
739
Description .............................................................739
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
739
On Board Diagnosis Logic .....................................739
DTC Confirmation Procedure ................................739
Wiring Diagram ......................................................740
Diagnosis Procedure .............................................743
Component Inspection ...........................................744
Removal and Installation .......................................745
DTC P0037, P0038, P0057, P0058 HO2S2
HEATER ..........................................................
746
Description .............................................................746
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
746
On Board Diagnosis Logic .....................................746
DTC Confirmation Procedure ................................746
Wiring Diagram ......................................................748
Diagnosis Procedure .............................................751
Component Inspection ...........................................752
Removal and Installation .......................................753
DTC P0075, P0081 IVT CONTROL SOLE-
NOID VALVE ...................................................
754
Component Description .........................................754
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
754
On Board Diagnosis Logic .....................................754
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