1. EC6-1
ENGINE
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SECTION EC6
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CONTENTS
ENGINE CONTROL SYSTEM [GASOLINE ENGINE
(V-6)]
VR30DDTT FOR USA AND CANADA
HOW TO USE THIS MANUAL ..................
...25
APPLICATION NOTICE .................................
....25
Information ..........................................................
....25
PRECAUTION ...........................................
...26
PRECAUTIONS ..............................................
....26
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................
....26
Precaution for Procedure without Cowl Top Cover
....26
Precautions for Removing Battery Terminal .......
....26
On Board Diagnostic (OBD) System of Engine
and A/T ................................................................
....27
General Precautions ...........................................
....28
PREPARATION ........................................
...31
PREPARATION ..............................................
....31
Special Service Tools ..........................................
....31
Commercial Service Tools ..................................
....31
SYSTEM DESCRIPTION ..........................
...33
COMPONENT PARTS ...................................
....33
ENGINE CONTROL SYSTEM ...............................
....33
ENGINE CONTROL SYSTEM : Component Parts
Location ...............................................................
....33
Accelerator Pedal Position Sensor ......................
....39
Air Fuel Ratio (A/F) Sensor 1 ..............................
....40
ASCD Steering Switch ........................................
....40
Battery Current Sensor (With Battery Tempera-
ture Sensor) ........................................................
....40
Charge Air Cooler Coolant Temperature Sensor....41
Charge Air Cooler Cooling Electric Water Pump ....42
Cooling Fan .........................................................
....42
Crankshaft Position Sensor .................................
....42
ECM (With Barometric Pressure Sensor) ...........
....42
Electric Intake Valve Timing Control Actuator .....
....43
Electric Intake Valve Timing Control Module .......
....43
Electric Throttle Control Actuator .........................
....43
Engine Coolant Temperature Sensor 1 ...............
....44
Engine Coolant Temperature Sensor 2 ...............
....44
Engine Oil Pressure Control Solenoid Valve .......
....45
Engine Oil Pressure Sensor ................................
....45
Engine Oil Temperature Sensor ..........................
....45
EVAP Canister Purge Volume Control Solenoid
Valve ....................................................................
....46
EVAP Canister Vent Control Valve ......................
....46
EVAP Control System Pressure Sensor ..............
....46
Exhaust Camshaft Position Sensor .....................
....46
Exhaust Gas Temperature Sensor ......................
....47
Exhaust Valve Timing Control Solenoid Valve ....
....47
Fuel Injector .........................................................
....47
Fuel Level Sensor ................................................
....48
Fuel Pump Control Module ..................................
....48
Fuel Rail Pressure Sensor ...................................
....48
Fuel Tank Temperature Sensor ...........................
....48
Heated Oxygen Sensor 2 ....................................
....49
High Pressure Fuel Pump ...................................
....49
ICC Steering Switch ............................................
....50
Ignition Coil and Spark Plug ................................
....50
Intake Camshaft Position Sensor ........................
....50
Knock Sensor ......................................................
....51
Low Pressure Fuel Pump ....................................
....51
Manifold Absolute Pressure Sensor ....................
....51
Mass Air Flow Sensor (With Intake Air Tempera-
ture Sensor 1) ......................................................
....51
Multi-way Control Valve .......................................
....52
Refrigerant Pressure Sensor ...............................
....52
Stop Lamp Switch & Brake Pedal Position Switch
....53
Turbocharger .......................................................
....53
Turbocharger Boost Sensor (With Intake Air Tem-
perature Sensor 2) ...............................................
....53
Turbocharger Speed Sensor ...............................
....54
STRUCTURE AND OPERATION .....................55
Positive Crankcase Ventilation ............................
....55
On Board Refueling Vapor Recovery (ORVR) ....
....56
Revision: November 2016 2016 Q50
2. EC6-2
SYSTEM ..........................................................
... 57
ENGINE CONTROL SYSTEM ...............................
... 57
ENGINE CONTROL SYSTEM : System Descrip-
tion .......................................................................
... 57
ENGINE CONTROL SYSTEM : Circuit Diagram
(Turbo High Pressure Model) ..............................
... 59
ENGINE CONTROL SYSTEM : Circuit Diagram
(Turbo Low Pressure Model) ...............................
... 63
ENGINE CONTROL SYSTEM : Fail safe (Turbo
High Pressure Model) ..........................................
... 66
ENGINE CONTROL SYSTEM : Fail safe (Turbo
Low Pressure Model) ...........................................
... 72
DIRECT INJECTION GASOLINE SYSTEM ...........
... 76
DIRECT INJECTION GASOLINE SYSTEM : Sys-
tem Description ....................................................
... 77
FUEL PRESSURE CONTROL ...............................
... 79
FUEL PRESSURE CONTROL : System Descrip-
tion .......................................................................
... 79
ENGINE OIL PRESSURE CONTROL SYSTEM ....
... 80
ENGINE OIL PRESSURE CONTROL SYSTEM :
System Description ..............................................
... 80
ELECTRIC IGNITION SYSTEM .............................
... 81
ELECTRIC IGNITION SYSTEM : System De-
scription ...............................................................
... 81
AIR CONDITIONING CUT CONTROL ...................
... 82
AIR CONDITIONING CUT CONTROL : System
Description ...........................................................
... 82
AUTOMATIC SPEED CONTROL DEVICE (ASCD)... 82
AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : System Description ....................................
... 83
CAN COMMUNICATION ........................................
... 84
CAN COMMUNICATION : System Description ...
... 84
COOLING SYSTEM ...............................................
... 84
COOLING SYSTEM : System Description (Cool-
ing Fan Control System) ......................................
... 84
COOLING SYSTEM : System Description
(Charge Air Cooler Cooling Control System) .......
... 85
THERMAL MANAGEMENT CONTROL ................
... 86
THERMAL MANAGEMENT CONTROL : System
Description ...........................................................
... 87
EVAPORATIVE EMISSION SYSTEM ....................
... 88
EVAPORATIVE EMISSION SYSTEM : System
Description ...........................................................
... 88
FUEL FILLER CAP WARNING SYSTEM ..............
... 89
FUEL FILLER CAP WARNING SYSTEM : System
Description ...........................................................
... 89
INTAKE VALVE TIMING CONTROL .....................
... 90
INTAKE VALVE TIMING CONTROL : System De-
scription ...............................................................
... 90
EXHAUST VALVE TIMING CONTROL .................
... 91
EXHAUST VALVE TIMING CONTROL : System
Description ...........................................................
... 91
TURBOCHARGER BOOST CONTROL .................
... 92
TURBOCHARGER BOOST CONTROL : System
Description ...........................................................
... 93
FUEL PUMP CONTROL MODULE (FPCM) ..........
... 94
FUEL PUMP CONTROL MODULE (FPCM) : Sys-
tem Description ....................................................
... 94
INFINITI DRIVE MODE SELECTOR ......................
... 95
Infiniti Drive Mode Selector : System Description... 95
OIL CONTROL SYSTEM .......................................
... 97
OIL CONTROL SYSTEM : System Description ...
... 97
INFORMATION DISPLAY (COMBINATION
METER) ..................................................................
... 98
INFORMATION DISPLAY (COMBINATION
METER) : Indicator/Information ...........................
... 98
INFORMATION DISPLAY (COMBINATION
METER) : Engine Oil Pressure Warning ..............
... 99
INFORMATION DISPLAY (COMBINATION
METER) : Fuel Filler Cap Warning ......................
. 100
WARNING/INDICATOR/CHIME LIST ....................
. 102
WARNING/INDICATOR/CHIME LIST : Warning
lamps/Indicator lamps ..........................................
. 102
WARNING/INDICATOR/CHIME LIST : Warning/
Indicator (On Information Display) .......................
. 102
OPERATION ...................................................
..103
AUTMATIC SPEED CONTROL DEVICE (ASCD) .
. 103
AUTMATIC SPEED CONTROL DEVICE (ASCD)
: Switch Name and Function ................................
. 103
OIL CONTROL SYSTEM .......................................
. 103
OIL CONTROL SYSTEM : Switch Name and
Function ...............................................................
. 103
HANDLING PRECAUTION ............................
..104
Infiniti Drive Mode Selector ..................................
. 104
ON BOARD DIAGNOSTIC (OBD) SYSTEM ..
..105
Diagnosis Description ..........................................
. 105
GST (Generic Scan Tool) ....................................
. 105
DIAGNOSIS SYSTEM (ECM) .........................
..106
DIAGNOSIS DESCRIPTION ..................................
. 106
DIAGNOSIS DESCRIPTION : 1st Trip Detection
Logic and Two Trip Detection Logic .....................
. 106
DIAGNOSIS DESCRIPTION : DTC and Freeze
Frame Data ..........................................................
. 106
DIAGNOSIS DESCRIPTION : Counter System ...
. 107
DIAGNOSIS DESCRIPTION : Driving Pattern .....
. 111
DIAGNOSIS DESCRIPTION : System Readiness
Test (SRT) Code ..................................................
. 112
DIAGNOSIS DESCRIPTION : Permanent Diag-
nostic Trouble Code (Permanent DTC) ...............
. 113
Revision: November 2016 2016 Q50
3. EC6-3
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On Board Diagnosis Function .............................
.. 114
CONSULT Function ............................................
.. 115
ECU DIAGNOSIS INFORMATION ...........
. 131
ECM ................................................................
..131
TURBO HIGH PRESSURE MODEL ......................
.. 131
TURBO HIGH PRESSURE MODEL : Reference
Value ...................................................................
.. 131
TURBO HIGH PRESSURE MODEL : Fail safe
(Turbo High Pressure Model) ..............................
.. 157
TURBO HIGH PRESSURE MODEL :
DTC Inspection Priority Chart ...........................
.. 162
TURBO HIGH PRESSURE MODEL : DTC Index.. 164
TURBO LOW PRESSURE MODEL ......................
.. 172
TURBO LOW PRESSURE MODEL : Reference
Value ...................................................................
.. 172
TURBO LOW PRESSURE MODEL : Fail safe
(Turbo Low Pressure Model) ...............................
.. 198
TURBO LOW PRESSURE MODEL :
DTC Inspection Priority Chart ...........................
.. 203
TURBO LOW PRESSURE MODEL : DTC Index.. 205
Test Value and Test Limit ...................................
.. 212
ELECTRIC INTAKE VALVE TIMING CON-
TROL MODULE ..............................................
..221
Reference Value .................................................
.. 221
WIRING DIAGRAM ...................................
. 224
ENGINE CONTROL SYSTEM ........................
..224
Wiring Diagram ...................................................
.. 224
BASIC INSPECTION ................................
. 257
DIAGNOSIS AND REPAIR WORKFLOW .....
..257
Work Flow ...........................................................
.. 257
Diagnostic Work Sheet ........................................
.. 260
BASIC INSPECTION ......................................
..262
Work Procedure ..................................................
.. 262
SERVICE AFTER REPLACING OR REMOV-
ING ENGINE PARTS ......................................
..266
Special Repair Requirement List .........................
.. 266
ADDITIONAL SERVICE WHEN REPLACING
ECM ................................................................
..267
Description ..........................................................
.. 267
Work Procedure ..................................................
.. 267
VIN REGISTRATION ......................................
..270
Description ..........................................................
.. 270
Work Procedure ..................................................
.. 270
ACCELERATOR PEDAL RELEASED POSI-
TION LEARNING ............................................
..271
Description ..........................................................
.. 271
Work Procedure ..................................................
.. 271
THROTTLE VALVE CLOSED POSITION
LEARNING ...................................................... 272
Description ...........................................................
..272
Work Procedure ...................................................
..272
IDLE AIR VOLUME LEARNING ..................... 273
Description ...........................................................
..273
Work Procedure ...................................................
..273
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR ............................................................ 275
Description ...........................................................
..275
Work Procedure ...................................................
..275
ELECTRIC IVT CONTROL ACTUATOR PO-
SITION LEARNING ......................................... 276
Description ...........................................................
..276
Work Procedure ...................................................
..276
TURBOCHARGER WASTEGATE CONTROL
SOLENOID VALVE DATA INITIALIZATION .. 277
Description ...........................................................
..277
Work Procedure ...................................................
..277
ENGINE OIL DATA RESET ............................ 278
Description ...........................................................
..278
Work Procedure ...................................................
..278
FUEL PRESSURE CHECK ............................. 279
Work Procedure ...................................................
..279
HOW TO SET SRT CODE .............................. 282
Description ...........................................................
..282
SRT Set Driving Pattern ......................................
..283
Work Procedure ...................................................
..285
HOW TO ERASE PERMANENT DTC ............ 288
Description ...........................................................
..288
Work Procedure (Group A) ..................................
..289
Work Procedure (Group B) ..................................
..291
DTC/CIRCUIT DIAGNOSIS ......................
. 294
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE ............................................................. 294
Description ...........................................................
..294
Component Function Check ................................
..294
Diagnosis Procedure ...........................................
..295
POWER SUPPLY AND GROUND CIRCUIT .. 302
ECM ........................................................................
..302
ECM : Diagnosis Procedure ................................
..302
ELECTRIC INTAKE VALVE TIMING CONTROL
MODULE ................................................................
..305
ELECTRIC INTAKE VALVE TIMING CONTROL
MODULE : Diagnosis Procedure .........................
..305
FUEL PUMP CONTROL MODULE (FPCM) ..........
..307
FUEL PUMP CONTROL MODULE (FPCM) : Di-
agnosis Procedure ...............................................
..307
Revision: November 2016 2016 Q50
12. EC6-12
P2614 INTAKE CAMSHAFT POSITION SEN-
SOR .................................................................
. 877
DTC Description ..................................................
..877
Diagnosis Procedure ...........................................
..878
Component Inspection (Camshaft Position Sen-
sor) ......................................................................
..879
P2615 INTAKE CAMSHAFT POSITION SEN-
SOR .................................................................
. 880
DTC Description ..................................................
..880
Diagnosis Procedure ...........................................
..880
Component Inspection (Camshaft Position Sen-
sor) ......................................................................
..882
P2616 INTAKE CAMSHAFT POSITION SEN-
SOR .................................................................
. 883
DTC Description ..................................................
..883
Diagnosis Procedure ...........................................
..884
Component Inspection (Camshaft Position Sen-
sor) ......................................................................
..886
P2617 CRANKSHAFT POSITION SENSOR ..
. 887
DTC Description ..................................................
..887
Diagnosis Procedure ...........................................
..887
Component Inspection (Crankshaft Position Sen-
sor) ......................................................................
..889
P2618 CRANKSHAFT POSITION SENSOR ..
. 890
DTC Description ..................................................
..890
Diagnosis Procedure ...........................................
..891
Component Inspection (Crankshaft Position Sen-
sor) ......................................................................
..893
P2619 CRANKSHAFT POSITION SENSOR ..
. 894
DTC Description ..................................................
..894
Diagnosis Procedure ...........................................
..895
Component Inspection (Crankshaft Position Sen-
sor) ......................................................................
..897
P26A3 MULTI-WAY CONTROL VALVE MO-
TOR .................................................................
. 899
DTC Description ..................................................
..899
Diagnosis Procedure ...........................................
..899
Component Inspection (Multi-way Control Valve)..900
P26A5 MULTI-WAY CONTROL VALVE POSI-
TION SENSOR ................................................
. 902
DTC Description ..................................................
..902
Diagnosis Procedure ...........................................
..903
Component Inspection (Multi-way Control Valve)..904
P26A6 P26A7 MULTI-WAY CONTROL
VALVE POSITION SENSOR ..........................
. 905
DTC Description ..................................................
..905
Diagnosis Procedure ...........................................
..905
Component Inspection (Multi-way Control Valve)..906
P26AB MULTI-WAY CONTROL VALVE .......
. 908
DTC Description ..................................................
..908
Diagnosis Procedure ...........................................
..909
Component Inspection (Engine Coolant Tempera-
ture Sensor 1) ......................................................
. 910
Component Inspection (Multi-way Control Valve). 910
P34A4 ELECTRIC INTAKE VALVE TIMING
CONTROL ACTUATOR .................................
..912
DTC Description ...................................................
. 912
Diagnosis Procedure ............................................
. 913
P34A5 ELECTRIC INTAKE VALVE TIMING
CONTROL ACTUATOR .................................
..915
DTC Description ...................................................
. 915
Diagnosis Procedure ............................................
. 916
P34A6 ELECTRIC INTAKE VALVE TIMING
CONTROL ACTUATOR .................................
..918
DTC Description ...................................................
. 918
Diagnosis Procedure ............................................
. 918
P34A7 ELECTRIC INTAKE VALVE TIMING
CONTROL ACTUATOR .................................
..921
DTC Description ...................................................
. 921
Diagnosis Procedure ............................................
. 921
P34A8 ELECTRIC INTAKE VALVE TIMING
CONTROL ACTUATOR .................................
..924
DTC Description ...................................................
. 924
Diagnosis Procedure ............................................
. 925
P34A9 ELECTRIC INTAKE VALVE TIMING
CONTROL ACTUATOR .................................
..927
DTC Description ...................................................
. 927
Diagnosis Procedure ............................................
. 928
P34AA ELECTRIC INTAKE VALVE TIMING
CONTROL ACTUATOR .................................
..930
DTC Description ...................................................
. 930
Diagnosis Procedure ............................................
. 930
P34AB ELECTRIC INTAKE VALVE TIMING
CONTROL ACTUATOR .................................
..933
DTC Description ...................................................
. 933
Diagnosis Procedure ............................................
. 933
P34AC ELECTRIC INTAKE VALVE TIMING
CONTROL ACTUATOR .................................
..936
DTC Description ...................................................
. 936
Diagnosis Procedure ............................................
. 937
P34AD ELECTRIC INTAKE VALVE TIMING
CONTROL ACTUATOR .................................
..940
DTC Description ...................................................
. 940
Diagnosis Procedure ............................................
. 940
P34B0 ELECTRIC INTAKE VALVE TIMING
CONTROL ACTUATOR .................................
..943
DTC Description ...................................................
. 943
Diagnosis Procedure ............................................
. 944
P34B1 ELECTRIC INTAKE VALVE TIMING
CONTROL ACTUATOR .................................
..947
Revision: November 2016 2016 Q50
13. EC6-13
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DTC Description ..................................................
.. 947
Diagnosis Procedure ...........................................
.. 947
P34C4 ELECTRIC INTAKE VALVE TIMING
CONTROL ACTUATOR .................................
..950
DTC Description ..................................................
.. 950
Diagnosis Procedure ...........................................
.. 950
P34C5 ELECTRIC INTAKE VALVE TIMING
CONTROL ACTUATOR .................................
..951
DTC Description ..................................................
.. 951
Diagnosis Procedure ...........................................
.. 951
P34C8 ELECTRIC INTAKE VALVE TIMING
CONTROL MODULE ......................................
..952
DTC Description ..................................................
.. 952
Diagnosis Procedure ...........................................
.. 952
BRAKE PEDAL POSITION SWITCH .............
..954
Component Function Check ................................
.. 954
Diagnosis Procedure ...........................................
.. 954
Component Inspection (Brake Pedal Position
Switch) ................................................................
.. 955
ASCD INDICATOR .........................................
..957
Component Function Check ................................
.. 957
Diagnosis Procedure ...........................................
.. 957
COOLING FAN ...............................................
..958
Component Function Check ................................
.. 958
Diagnosis Procedure (Cooling Fan Motor 1) .......
.. 958
Diagnosis Procedure (Cooling Fan Motor 2) .......
.. 960
Component Inspection (Cooling Fan Motor) .......
.. 967
Component Inspection (Cooling Fan Relay) .......
.. 967
ELECTRICAL LOAD SIGNAL .......................
..969
Description ..........................................................
.. 969
Component Function Check ................................
.. 969
Diagnosis Procedure ...........................................
.. 969
FUEL INJECTOR ...........................................
..971
Component Function Check ................................
.. 971
Diagnosis Procedure ...........................................
.. 971
Component Inspection (Fuel Injector) .................
.. 974
Component Inspection (Fuel Injector Relay) .......
.. 975
FUEL PUMP ...................................................
..976
Component Function Check ................................
.. 976
Diagnosis Procedure ...........................................
.. 976
Component Inspection (Fuel Pump) ...................
.. 978
Component Inspection (Fuel Pump Control Mod-
ule) ......................................................................
.. 978
HIGH PRESSURE FUEL PUMP ....................
..979
Component Function Check ................................
.. 979
Diagnosis Procedure ...........................................
.. 979
Component Inspection (High Pressure Fuel
Pump) ..................................................................
.. 981
Component Inspection (High Pressure Fuel Pump
Relay) ..................................................................
.. 982
IGNITION SIGNAL .......................................... 983
Component Function Check ................................
..983
Diagnosis Procedure ...........................................
..983
Component Inspection (Ignition Coil with Power
Transistor) ...........................................................
..986
Component Inspection (Condenser) ....................
..987
MALFUNCTION INDICATOR LAMP .............. 988
Component Function Check ................................
..988
Diagnosis Procedure ...........................................
..988
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) .................................................... 989
Component Function Check ................................
..989
Diagnosis Procedure ...........................................
..989
Component Inspection .........................................
..991
SENSOR POWER SUPPLY 2 CIRCUIT ......... 994
TURBO HIGH PRESSURE MODEL ......................
..994
TURBO HIGH PRESSURE MODEL : Description
..994
TURBO LOW PRESSURE MODEL .......................
..994
TURBO LOW PRESSURE MODEL : Description..994
Diagnosis Procedure ...........................................
..995
SENSOR POWER SUPPLY 3 CIRCUIT ......... 997
TURBO HIGH PRESSURE MODEL ......................
..997
TURBO HIGH PRESSURE MODEL : Description
..997
TURBO HIGH PRESSURE MODEL : Diagnosis
Procedure ............................................................
..997
TURBO LOW PRESSURE MODEL .......................
..998
TURBO LOW PRESSURE MODEL : Description..998
TURBO LOW PRESSURE MODEL : Diagnosis
Procedure ............................................................
..998
REFRIGERANT PRESSURE SENSOR .........1000
Component Function Check ................................1000
Diagnosis Procedure ...........................................1000
SYMPTOM DIAGNOSIS ...........................
1002
ENGINE CONTROL SYSTEM SYMPTOMS ..1002
Symptom Table ...................................................1002
Infiniti Drive Mode Selector .........................1007
Symptom Table ...................................................1007
NORMAL OPERATING CONDITION ............1008
Description ...........................................................1008
PERIODIC MAINTENANCE .....................
1009
IDLE SPEED ..................................................1009
Inspection ............................................................1009
IGNITION TIMING ..........................................1010
Inspection ............................................................1010
EVAP LEAK CHECK .....................................1011
Inspection ............................................................1011
Revision: November 2016 2016 Q50
14. EC6-14
POSITIVE CRANKCASE VENTILATION .......1013
Inspection ............................................................1013
REMOVAL AND INSTALLATION ............1014
ECM ................................................................1014
Exploded View .....................................................1014
Removal and Installation .....................................1014
ELECTRIC INTAKE VALVE TIMING CON-
TROL MODULE ..............................................1015
Removal and Installation .....................................1015
FUEL PUMP CONTROL MODULE (FPCM) ...1016
Exploded View .....................................................1016
Removal and Installation .....................................1016
SERVICE DATA AND SPECIFICATIONS
(SDS) ........................................................1017
SERVICE DATA AND SPECIFICATIONS
(SDS) ...............................................................1017
Idle Speed ...........................................................1017
Ignition Timing .....................................................1017
Calculated Load Value ........................................1017
Mass Air Flow Sensor ..........................................1017
VR30DDTT FOR MEXICO
PRECAUTION ..........................................1018
PRECAUTIONS ..............................................1018
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ..............................................................1018
Precaution for Procedure without Cowl Top Cover1018
Precautions for Removing Battery Terminal ........1018
On Board Diagnostic (OBD) System of Engine
and A/T ................................................................1019
General Precautions ............................................1020
PREPARATION ........................................1023
PREPARATION ..............................................1023
Special Service Tools ..........................................1023
Commercial Service Tools ...................................1023
SYSTEM DESCRIPTION .........................1024
COMPONENT PARTS ....................................1024
ENGINE CONTROL SYSTEM ...............................1024
ENGINE CONTROL SYSTEM : Component Parts
Location ...............................................................1024
Accelerator Pedal Position Sensor ......................1030
Air Fuel Ratio (A/F) Sensor 1 ..............................1031
ASCD Steering Switch .........................................1031
Battery Current Sensor (With Battery Tempera-
ture Sensor) .........................................................1031
Charge Air Cooler Coolant Temperature Sensor .1032
Charge Air Cooler Cooling Electric Water Pump .1033
Cooling Fan .........................................................1033
Crankshaft Position Sensor .................................
1033
ECM (With Barometric Pressure Sensor) ............
1033
Electric Intake Valve Timing Control Actuator ......
1034
Electric Intake Valve Timing Control Module .......
1034
Electric Throttle Control Actuator .........................
1034
Engine Coolant Temperature Sensor 1 ...............
1035
Engine Coolant Temperature Sensor 2 ...............
1035
Engine Oil Pressure Control Solenoid Valve .......
1036
Engine Oil Pressure Sensor .................................
1036
Engine Oil Temperature Sensor ..........................
1036
EVAP Canister Purge Volume Control Solenoid
Valve ....................................................................
1037
Exhaust Camshaft Position Sensor .....................
1037
Exhaust Gas Temperature Sensor ......................
1037
Exhaust Valve Timing Control Solenoid Valve .....
1038
Fuel Injector .........................................................
1038
Fuel Level Sensor ................................................
1038
Fuel Pump Control Module ..................................
1038
Fuel Rail Pressure Sensor ...................................
1039
Heated Oxygen Sensor 2 .....................................
1039
High Pressure Fuel Pump ....................................
1039
ICC Steering Switch .............................................
1040
Ignition Coil and Spark Plug .................................
1040
Intake Camshaft Position Sensor .........................
1041
Knock Sensor .......................................................
1041
Low Pressure Fuel Pump .....................................
1041
Manifold Absolute Pressure Sensor .....................
1042
Mass Air Flow Sensor (With Intake Air Tempera-
ture Sensor 1) ......................................................
1042
Multi-way Control Valve .......................................
1042
Refrigerant Pressure Sensor ...............................
1043
Stop Lamp Switch & Brake Pedal Position Switch1043
Turbocharger .......................................................
1043
Turbocharger Boost Sensor (With Intake Air Tem-
perature Sensor 2) ...............................................
1043
Turbocharger Speed Sensor ................................
1044
STRUCTURE AND OPERATION ...................1045
Positive Crankcase Ventilation ............................
1045
SYSTEM .........................................................1046
ENGINE CONTROL SYSTEM ................................
1046
ENGINE CONTROL SYSTEM : System Descrip-
tion .......................................................................
1046
ENGINE CONTROL SYSTEM : Circuit Diagram .
1048
ENGINE CONTROL SYSTEM : Fail safe ............
1051
DIRECT INJECTION GASOLINE SYSTEM ...........
1056
DIRECT INJECTION GASOLINE SYSTEM : Sys-
tem Description ....................................................
1057
ELECTRIC IGNITION SYSTEM .............................
1059
ELECTRIC IGNITION SYSTEM : System De-
scription ................................................................
1059
FUEL PRESSURE CONTROL ...............................
1060
FUEL PRESSURE CONTROL : System Descrip-
tion .......................................................................
1060
FUEL PUMP CONTROL MODULE (FPCM) ..........
1061
Revision: November 2016 2016 Q50
15. EC6-15
C
D
E
F
G
H
I
J
K
L
M
EC6
A
N
O
P
FUEL PUMP CONTROL MODULE (FPCM) : Sys-
tem Description ...................................................1061
INTAKE VALVE TIMING CONTROL .....................1062
INTAKE VALVE TIMING CONTROL : System De-
scription ...............................................................1062
EXHAUST VALVE TIMING CONTROL .................1062
EXHAUST VALVE TIMING CONTROL : System
Description ..........................................................1063
TURBOCHARGER BOOST CONTROL ................1064
TURBOCHARGER BOOST CONTROL : System
Description ..........................................................1065
AIR CONDITIONING CUT CONTROL ..................1066
AIR CONDITIONING CUT CONTROL : System
Description ..........................................................1066
ENGINE OIL PRESSURE CONTROL SYSTEM ...1067
ENGINE OIL PRESSURE CONTROL SYSTEM :
System Description .............................................1067
COOLING SYSTEM ...............................................1067
COOLING SYSTEM : System Description (Cool-
ing Fan Control System) .....................................1068
COOLING SYSTEM : System Description
(Charge Air Cooler Cooling Control System) ......1069
THERMAL MANAGEMENT CONTROL ................1070
THERMAL MANAGEMENT CONTROL : System
Description ..........................................................1071
EVAPORATIVE EMISSION SYSTEM ...................1072
EVAPORATIVE EMISSION SYSTEM : System
Description ..........................................................1073
OIL CONTROL SYSTEM .......................................1073
OIL CONTROL SYSTEM : System Description ..1074
AUTOMATIC SPEED CONTROL DEVICE (ASCD)1074
AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : System Description ....................................1074
INFINITI DRIVE MODE SELECTOR .....................1075
Infiniti Drive Mode Selector : System Description 1076
INFORMATION DISPLAY (COMBINATION
METER) .................................................................1078
INFORMATION DISPLAY (COMBINATION
METER) : Indicator/Information ...........................1078
INFORMATION DISPLAY (COMBINATION
METER) : Engine Oil Pressure Warning .............1079
WARNING/INDICATOR/CHIME LIST ...................1081
WARNING/INDICATOR/CHIME LIST : Warning
lamps/Indicator lamps .........................................1081
WARNING/INDICATOR/CHIME LIST : Warning/
Indicator (On Information Display) ......................1081
CAN COMMUNICATION .......................................1081
CAN COMMUNICATION : System Description ..1081
OPERATION ...................................................1082
AUTMATIC SPEED CONTROL DEVICE (ASCD) .1082
AUTMATIC SPEED CONTROL DEVICE (ASCD)
: Switch Name and Function ................................1082
OIL CONTROL SYSTEM .......................................1082
OIL CONTROL SYSTEM : Switch Name and
Function ...............................................................1082
HANDLING PRECAUTION ............................1083
Infiniti Drive Mode Selector ..................................1083
ON BOARD DIAGNOSTIC (OBD) SYSTEM .1084
Diagnosis Description ..........................................1084
GST (Generic Scan Tool) ....................................1084
DIAGNOSIS SYSTEM (ECM) ........................1085
DIAGNOSIS DESCRIPTION ..................................1085
DIAGNOSIS DESCRIPTION : 1st Trip Detection
Logic and Two Trip Detection Logic ....................1085
DIAGNOSIS DESCRIPTION : DTC and Freeze
Frame Data ..........................................................1085
DIAGNOSIS DESCRIPTION : Counter System ..1086
DIAGNOSIS DESCRIPTION : Driving Pattern ....1089
DIAGNOSIS DESCRIPTION : System Readiness
Test (SRT) Code .................................................1090
On Board Diagnosis Function ..............................1091
CONSULT Function .............................................1093
ECU DIAGNOSIS INFORMATION ...........
1107
ECM ................................................................1107
Reference Value ..................................................1107
Fail safe ...............................................................1132
DTC Inspection Priority Chart ...........................1137
DTC Index ...........................................................1139
Test Value and Test Limit ....................................1145
ELECTRIC INTAKE VALVE TIMING CON-
TROL MODULE .............................................1154
Reference Value ..................................................1154
WIRING DIAGRAM ...................................
1157
ENGINE CONTROL SYSTEM .......................1157
Wiring Diagram ....................................................1157
BASIC INSPECTION ................................
1190
DIAGNOSIS AND REPAIR WORKFLOW .....1190
Work Flow ............................................................1190
Diagnostic Work Sheet ........................................1193
BASIC INSPECTION ......................................1195
Work Procedure ...................................................1195
SERVICE AFTER REPLACING OR REMOV-
ING ENGINE PARTS .....................................1199
Special Repair Requirement List .........................1199
ADDITIONAL SERVICE WHEN REPLACING
ECM ................................................................1200
Revision: November 2016 2016 Q50
16. EC6-16
Description ...........................................................1200
Work Procedure ...................................................1200
VIN REGISTRATION ......................................1203
Description ...........................................................1203
Work Procedure ...................................................1203
ACCELERATOR PEDAL RELEASED POSI-
TION LEARNING ............................................1204
Description ...........................................................1204
Work Procedure ...................................................1204
THROTTLE VALVE CLOSED POSITION
LEARNING ......................................................1205
Description ...........................................................1205
Work Procedure ...................................................1205
IDLE AIR VOLUME LEARNING .....................1206
Description ...........................................................1206
Work Procedure ...................................................1206
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR ............................................................1208
Description ...........................................................1208
Work Procedure ...................................................1208
ELECTRIC IVT CONTROL ACTUATOR PO-
SITION LEARNING .........................................1209
Description ...........................................................1209
Work Procedure ...................................................1209
TURBOCHARGER WASTEGATE CONTROL
SOLENOID VALVE DATA INITIALIZATION ..1210
Description ...........................................................1210
Work Procedure ...................................................1210
ENGINE OIL DATA RESET ............................1211
Description ...........................................................1211
Work Procedure ...................................................1211
FUEL PRESSURE CHECK ............................1212
Work Procedure ...................................................1212
HOW TO SET SRT CODE ..............................1215
Description ...........................................................1215
SRT Set Driving Pattern ......................................1216
Work Procedure ...................................................1218
DTC/CIRCUIT DIAGNOSIS ......................1220
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE ............................................................1220
Description ...........................................................1220
Component Function Check ................................1220
Diagnosis Procedure ...........................................1221
POWER SUPPLY AND GROUND CIRCUIT ..1228
ECM ........................................................................1228
ECM : Diagnosis Procedure ................................1228
ELECTRIC INTAKE VALVE TIMING CONTROL
MODULE ................................................................
1231
ELECTRIC INTAKE VALVE TIMING CONTROL
MODULE : Diagnosis Procedure .........................
1231
FUEL PUMP CONTROL MODULE (FPCM) ..........
1233
FUEL PUMP CONTROL MODULE (FPCM) : Di-
agnosis Procedure ...............................................
1233
U0101 CAN COMM CIRCUIT .........................1235
DTC Description ...................................................
1235
Diagnosis Procedure ............................................
1235
U012E ENGINE COMMUNICATION ..............1236
DTC Description ...................................................
1236
Diagnosis Procedure ............................................
1236
U042F ENGINE COMMUNICATION ..............1238
DTC Description ...................................................
1238
Diagnosis Procedure ............................................
1238
U1000 CAN COMMUNICATION CIRCUIT .....1240
DTC Description ...................................................
1240
Diagnosis Procedure ............................................
1240
U1001 CAN COMM CIRCUIT .........................1242
DTC Description ...................................................
1242
Diagnosis Procedure ............................................
1242
P0010 INTAKE VALVE TIMING CONTROL ..1243
DTC Description ...................................................
1243
Diagnosis Procedure ............................................
1243
P0011 INTAKE VALVE TIMING CONTROL ..1245
DTC Description ...................................................
1245
Diagnosis Procedure ............................................
1246
P0014, P0024 EVT CONTROL .......................1248
DTC Description ...................................................
1248
Diagnosis Procedure ............................................
1249
Component Inspection (Exhaust Valve Timing
Control Solenoid Valve) .......................................
1251
P0020 INTAKE VALVE TIMING CONTROL ..1252
DTC Description ...................................................
1252
Diagnosis Procedure ............................................
1252
P0021 INTAKE VALVE TIMING CONTROL ..1254
DTC Description ...................................................
1254
Diagnosis Procedure ............................................
1255
P0031, P0032, P0051, P0052 A/F SENSOR 1
HEATER .........................................................1257
DTC Description ...................................................
1257
Diagnosis Procedure ............................................
1258
Component Inspection (A/F Sensor 1 Heater) .....
1259
P0037, P0038, P0057, P0058 HO2S2 HEAT-
ER ...................................................................1260
DTC Description ...................................................
1260
Diagnosis Procedure ............................................
1261
Revision: November 2016 2016 Q50