2014 NISSAN TEANA fuel pressure

EC-8
POSITIVE CRANKCASE VENTILATION ........539
Inspection ............................................................ ..539
REMOVAL AND INSTALLATION ..............540
ECM ................................................................ .540
Removal and Installation ..................................... ..540
SERVICE DATA AND SPECIFICATIONS
(SDS) .............. ............................................
541
SERVICE DATA AND SPECIFICATIONS
(SDS) ............................................................... .
541
Idle Speed ........................................................... ..541
Ignition Timing .......................................................541
Calculated Load Value ..........................................541
Mass Air Flow Sensor ............................................541
VQ35DE
PRECAUTION .............. ..............................
542
PRECAUTIONS .............................................. .542
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ..
542
On Board Diagnostic (OBD) System of Engine
and CVT .............................................................. ..
542
General Precautions ..............................................543
PREPARATION ..........................................546
PREPARATION .............................................. .546
Special Service Tools .......................................... ..546
Commercial Service Tools .....................................546
SYSTEM DESCRIPTION ...........................548
COMPONENT PARTS .................................... .548
ENGINE CONTROL SYSTEM .................................548
ENGINE CONTROL SYSTEM : Component Parts
Location ............................................................... ..
548
Accelerator Pedal Position Sensor ........................552
Air Fuel Ratio (A/F) Sensor 1 ................................552
ASCD Steering Switch ...........................................553
Battery Current Sensor (With Battery Tempera-
ture Sensor) ......................................................... ..
553
Camshaft Position Sensor (PHASE) .....................554
Cooling Fan ......................................................... ..554
Crankshaft Position Sensor (POS) ........................554
ECM .......................................................................555
Electric Throttle Control Actuator ......................... ..555
Electronic Controlled Engine Mount .................... ..556
Engine Coolant Temperature Sensor ....................556
Engine Oil Pressure Sensor ................................ ..557
Engine Oil Temperature Sensor ............................557
EVAP Canister ..................................... ..................557
EVAP Canister Purge Volu me Control Solenoid
Valve .................................................................... ..
557
EVAP Canister Vent Control Valve ........................558
EVAP Control System Pressu re Sensor ................558
Fuel Injector ......................................................... .558
Fuel Level Sensor Unit and Fuel Pump (With Fuel
Tank Temperature Sensor) .................................. .
558
Heated Oxygen Sensor 2 ......................................559
Ignition Coil (With Power Transistor) ....................560
Intake Valve Timing Control Solenoid Valve .........560
Knock Sensor ....................................................... .560
Malfunction Indicator lamp (MIL) ...........................560
Mass Air Flow Sensor (With Intake Air Tempera-
ture Sensor) ......................................................... .
560
Oil Pressure Warning Lamp ..................................561
Power Valve Actuator 1 and 2 ..............................561
Refrigerant Pressure Sensor ................................562
Stop Lamp Switch & Brak e Pedal Position Switch .562
VIAS Control Solenoid Valve 1 and 2 .................. .562
STRUCTURE AND OPERATION .....................563
Positive Crankcase Ventilation (PCV) ...................563
On Board Refueling Vapor Recovery (ORVR) ..... .564
SYSTEM ...........................................................565
ENGINE CONTROL SYSTEM ................................ .565
ENGINE CONTROL SYSTEM : System Descrip-
tion ....................................................................... .
565
ENGINE CONTROL SYSTEM : Fail-safe .............566
MULTIPORT FUEL INJECTION SYSTEM ............. .568
MULTIPORT FUEL INJECTION SYSTEM : Sys-
tem Description .................................................... .
568
ELECTRIC IGNITION SYSTEM ............................. .571
ELECTRIC IGNITION SYSTEM : System De-
scription ................................................................ .
571
AIR CONDITIONING CUT CONTROL ................... .572
AIR CONDITIONING CUT CONTROL : System
Description ........................................................... .
573
AUTOMATIC SPEED CONTROL DEVICE (ASCD) .574
AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : System Description ..................................... .
574
COOLING FAN CONTROL .................................... .575
COOLING FAN CONTROL : System Description .575
ELECTRONIC CONTROLLED ENGINE MOUNT .. .577
ELECTRONIC CONTROLLED ENGINE MOUNT
: System Description ............................................ .
577
EVAPORATIVE EMISSION SYSTEM .....................579
EVAPORATIVE EMISSION SYSTEM : System
Description ........................................................... .
580
THROTTLE CONTROL ...........................................581
THROTTLE CONTROL : Syst em Description ......581
INTAKE VALVE TIMING CONTROL ..................... .582
INTAKE VALVE TIMING CONTROL : System De-
scription ................................................................ .
583
ENGINE PROTECTION CONTROL AT LOW EN-
GINE OIL PRESSURE ........................................... .
583
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EC-9
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ENGINE PROTECTION CO
NTROL AT LOW EN-
GINE OIL PRESSURE : System Description ...... ..
583
FUEL FILLER CAP WARNING SYSTEM ............. ..584
FUEL FILLER CAP WARNING SYSTEM : System
Description .......................................................... ..
585
VARIABLE INDUCTION AIR SYSTEM ...................586
VARIABLE INDUCTION AIR SYSTEM : System
Description .......................................................... ..
586
INTEGRATED CONTROL OF ENGINE, CVT, AND
ABS ........................................................................ ..
587
INTEGRATED CONTROL OF ENGINE, CVT,
AND ABS : System Descri ption ............................
588
ALTERNATOR POWER GENERATION VOLT-
AGE VARIABLE CONTROL SYSTEM .................. ..
588
ALTERNATOR POWER GENERATION VOLT-
AGE VARIABLE CONTRO L SYSTEM : System
Description .......................................................... ..
588
CAN COMMUNICATION ....................................... ..588
CAN COMMUNICATION : System Description ....588
OPERATION ................................................... ..589
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ..589
AUTOMATIC SPEED CONT ROL DEVICE (AS-
CD) : Switch Name and Function ........................ ..
589
ON BOARD DIAGNOSTIC (OBD) SYSTEM ....590
Diagnosis Description ......................................... ..590
GST (Generic Scan Tool) ......................................590
DIAGNOSIS SYSTEM (ECM) ...........................591
DIAGNOSIS DESCRIPTION ................................. ..591
DIAGNOSIS DESCRIPTION : 1st Trip Detection
Logic and Two Trip Detection Logic .................... ..
591
DIAGNOSIS DESCRIPTION : DTC and Freeze
Frame Data ......................................................... ..
591
DIAGNOSIS DESCRIPTION : Counter System ....592
DIAGNOSIS DESCRIPTION : Driving Pattern ......595
DIAGNOSIS DESCRIPTION : System Readiness
Test (SRT) Code ................................................. ..
596
DIAGNOSIS DESCRIPTION : Permanent Diag-
nostic Trouble Code (Permanent DTC) ............... ..
597
DIAGNOSIS DESCRIPTION : Malfunction Indica-
tor Lamp (MIL) ..................................................... ..
598
On Board Diagnosis Function ...............................598
CONSULT Function ..............................................601
ECU DIAGNOSIS INFORMATION ............613
ECM ................................................................ ..613
Reference Value ................................................. ..613
Fail-safe ................................................................627
DTC Inspection Priority Chart .............................629
DTC Index ............................................................630
Test Value and Test Limit .....................................634
WIRING DIAGRAM ....................................642
ENGINE CONTRO L SYSTEM ........................642
Wiring Diagram .................................................... ..642
BASIC INSPECTION .................................670
DIAGNOSIS AND REPAIR WORKFLOW ......670
Work Flow ............................................................ ..670
Diagnostic Work Sheet ..........................................673
BASIC INSPECTION .......................................675
Work Procedure .....................................................675
ADDITIONAL SERVICE WHEN REPLACING
ECM .................................................................
679
Description ........................................................... ..679
Work Procedure .....................................................679
ACCELERATOR PEDAL RELEASED POSI-
TION LEARNING ............................................
681
Description ........................................................... ..681
Work Procedure .....................................................681
THROTTLE VALVE CLOSED POSITION
LEARNING ....... ...............................................
682
Description ........................................................... ..682
Work Procedure .....................................................682
IDLE AIR VOLUME LEARNING .....................683
Description .............................................................683
Work Procedure .....................................................683
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR ............................................................
685
Description ........................................................... ..685
Work Procedure .....................................................685
VIN REGISTRATION .......................................686
Description .............................................................686
Work Procedure .....................................................686
FUEL PRESSURE ...........................................687
Work Procedure .....................................................687
HOW TO SET SRT CODE ..............................689
Description .............................................................689
SRT Set Driving Pattern ........................................690
Work Procedure .....................................................692
HOW TO ERASE PERMANENT DTC ............695
Description .............................................................695
Work Procedure (Group A) ....................................696
Work Procedure (Group B) ....................................698
DTC/CIRCUIT DIAGNOSIS .......................701
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE .............................................................
701
Description ........................................................... ..701
Component Function Check ..................................701
Diagnosis Procedure .............................................702
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EC-12
Diagnosis Procedure .............................................865
P0462, P0463 FUEL LEVEL SENSOR ...........866
DTC Logic ............................................................ ..866
Diagnosis Procedure .............................................866
P0500 VSS .......................................................867
Description ........................................................... ..867
DTC Logic ..............................................................867
Diagnosis Procedure .............................................867
P0506 ISC SYSTEM ........................................869
Description ........................................................... ..869
DTC Logic ..............................................................869
Diagnosis Procedure .............................................869
P0507 ISC SYSTEM ........................................871
Description ........................................................... ..871
DTC Logic ..............................................................871
Diagnosis Procedure .............................................871
P050A, P050E COLD START CONTROL .......873
Description ........................................................... ..873
DTC Logic ..............................................................873
Diagnosis Procedure .............................................874
P0520 EOP SENSOR ......................................875
DTC Logic ............................................................ ..875
Diagnosis Procedure .............................................875
Component Inspection ...........................................877
P0524 ENGINE OIL PRESSURE ....................878
DTC Logic ............................................................ ..878
Diagnosis Procedure .............................................879
Component Inspection ...........................................880
P0603 ECM POWER SUPPLY ........................881
DTC Logic ............................................................ ..881
Diagnosis Procedure .............................................881
P0605 ECM ......................................................883
DTC Logic ............................................................ ..883
Diagnosis Procedure .............................................883
P0607 ECM ......................................................884
DTC Logic ............................................................ ..884
Diagnosis Procedure .............................................884
P0643 SENSOR POWER SUPPLY .................885
Description ........................................................... ..885
DTC Logic ..............................................................885
Diagnosis Procedure .............................................885
P0850 PNP SWITCH .......................................887
Description ........................................................... ..887
DTC Logic ..............................................................887
Component Function Check ..................................888
Diagnosis Procedure .............................................888
P1148, P1168 CLOSED LOOP CONTROL .....890
DTC Logic ............................................................ ..890
P1212 TCS COMMUNICATION LINE ..............891
Description ........................................................... .891
DTC Logic .............................................................891
Diagnosis Procedure .............................................891
P1217 ENGINE OVER TEMPERATURE .........892
DTC Logic ............................................................ .892
Component Function Check .................................892
Diagnosis Procedure .............................................893
P1225 TP SENSOR ..........................................895
DTC Logic ............................................................ .895
Diagnosis Procedure .............................................895
P1226 TP SENSOR ..........................................896
DTC Logic ............................................................ .896
Diagnosis Procedure .............................................896
P1550 BATTERY CURRENT SENSOR ...........897
DTC Logic ............................................................ .897
Diagnosis Procedure .............................................897
Component Inspection ..........................................898
P1551, P1552 BATTERY CURRENT SEN-
SOR ................................................................ ..
899
DTC Logic ............................................................ .899
Diagnosis Procedure .............................................899
Component Inspection ..........................................900
P1553 BATTERY CURRENT SENSOR ...........901
DTC Logic ............................................................ .901
Diagnosis Procedure .............................................901
Component Inspection ..........................................902
P1554 BATTERY CURRENT SENSOR ...........903
DTC Logic ............................................................ .903
Component Function Check .................................903
Diagnosis Procedure .............................................903
Component Inspection ..........................................904
P1556, P1557 BATTERY TEMPERATURE
SENSOR ......................................................... ..
906
DTC Logic ............................................................ .906
Diagnosis Procedure .............................................906
Component Inspection (Battery Temperature
Sensor) ................................................................ .
907
P1564 ASCD STEERING SWITCH ..................908
DTC Logic ............................................................ .908
Diagnosis Procedure .............................................908
Component Inspection ..........................................910
P1572 ASCD BRAKE SWITCH ........................911
Description ........................................................... .911
DTC Logic .............................................................911
Component Function Check .................................912
Diagnosis Procedure .............................................913
Component Inspection (Brake Pedal Position
Switch) ................................................................. .
916
Component Inspection (Stop Lamp Switch) ..........916
Component Inspection (Stop Lamp Relay) ...........917
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PREPARATIONEC-19
< PREPARATION > [QR25DE]
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PREPARATION
PREPARATION
Special Service ToolsINFOID:0000000009462051
The actual shape of the tools may di
ffer from those illustrated here.
Commercial Service ToolsINFOID:0000000009462052
Tool number
(TechMate No.)
Tool name Description
(J-44321)
Fuel pressure gauge
kit Checks fuel pressure
KV10120000
Fuel tube adapter Measures fuel pressure
LEC642
JSBIA0410ZZ
Tool name
(TechMate No.) Description
Leak detector
i.e.: (J-41416) Locates the EVAP leak
EVAP service port
adapter
i.e.: (J-41413-OBD) Applies positive pressure through EVAP service
port
Fuel filler cap adapter
i.e.: (MLR-8382) Checks fuel tank vacuum relief valve opening
pressure
S-NT703
S-NT704
S-NT815
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EC-22
< SYSTEM DESCRIPTION >[QR25DE]
COMPONENT PARTS
ENGINE COMPARTMENT
Intake manifold runner control valve actuator
EC-31, "Intake Manifold Runner Control Valve"
Electric throttle control actuator
(with built in throttle position sensor and throttle control motor) EC-25, "Electric Thrott
le Control Actuator"
EVAP service port When perform the EVAP leak check, positive pressure is
delivered to the EVAP system through the EVAP service
port.
Refer to EC-537, "Inspection"
.
No. Component Function
JPBIA5840ZZ
Engine rear side Intake side
: Vehicle front
No. Component Function
Exhaust valve timing control position sensor EC-30, "Exhaust Valve Timing Control Position Sensor"
Camshaft position sensor (PHASE)EC-29, "Camshaft Position Sensor (PHASE)"
PCV valveThe positive crankcase ventilation (PCV) valve is provided
to conduct crankcase blow-by gas to the intake manifold.
Fuel injector EC-26, "Fuel Injector"
Crankshaft position sensor (POS)EC-29, "Crankshaft Position Sensor (POS)"
Knock sensorEC-33, "Knock Sensor"
Engine oil temperature sensorEC-33, "Engine Oil Temperature Sensor"
Engine oil pressure sensorEC-33, "Engine Oil Pressure Sensor"
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EC-24
< SYSTEM DESCRIPTION >[QR25DE]
COMPONENT PARTS
A. Instrument panel area B. Periphery of pedals C. Inside fuel tank area
D. Behind fuel tank
: Vehicle front
No. Component Function Combination meter Malfunction indicator lamp (MIL)
EC-36, "Malfunction Indicator lamp (MIL)"
Information displayEC-37, "Information Display"
ASCD steering switch EC-37, "ASCD Steering Switch"
Stop lamp switch
EC-36, "Stop Lamp Switch & Brake Pedal Position Switch"
Brake pedal position switch
Accelerator pedal position sensor EC-25, "Accelerator Pedal Position Sensor"
Fuel level sensor unit and fuel pumpEC-26, "Fuel Level Sensor Unit and Fuel Pump"
Fuel tank temperature sensorEC-27, "Fuel Tank Temperature Sensor"
EVAP control system pressure sensorEC-35, "EVAP Control System Pressure Sensor"
EVAP canister vent control valve EC-35, "EVAP Canister Vent Control Valve"
EVAP canisterEC-34, "EVAP Canister"
ALBIA0806ZZ
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EC-34
< SYSTEM DESCRIPTION >[QR25DE]
COMPONENT PARTS

*: These data are reference values and are measured between ECM terminals.
Cooling FanINFOID:0000000009462077
The ECM controls the cooling fan corresponding to the
vehicle speed, engine coolant temperature, refrigerant
pressure, and air conditioner ON signal. The control system has 4-step control [HIGH/MIDDLE/LOW/OFF].
Cooling fan operates at each speed when the current flows in the cooling fan motor.
Refer to EC-59, "COOLING FAN CONTROL : System De scription (with automatic air conditioner)"
for cooling
fan operation.
EVAP CanisterINFOID:0000000009462078
EVAP canister stores the generat ed fuel vapors in the sealed fuel
tank to activated charcoals of EVAP canister when the engine is not
operating or when refueling to the fuel tank.
EVAP Canister Purge Volume Control Solenoid ValveINFOID:0000000009462079
The EVAP canister purge volume control solenoid valve uses a ON/
OFF duty to control the flow rate of fuel vapor from the EVAP canis-
ter. The EVAP canister purge volume control solenoid valve is
moved by ON/OFF pulses from the ECM. The longer the ON pulse,
the greater the amount of fuel vapor that will flow through the valve.
Engine oil temperature
[° C ( °F)] Vol tag e* (V)
Resistance (k
Ω)
–10 (14) 4.4 7.0 - 11.4 20 (68) 3.5 2.37 - 2.63
50 (122) 2.2 0.68 - 1.00
90 (194) 1.0 0.236 - 0.260
110 (230) 0.6 0.143 - 0.153
SEF012P
JPBIA5851ZZ
JMBIA0069ZZ
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COMPONENT PARTSEC-35
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EVAP Canister Vent Control ValveINFOID:0000000009462080
The EVAP canister vent control valve is located on the EVAP canis-
ter and is used to seal the canister vent.
This solenoid valve responds to signals from the ECM. When the
ECM sends an ON signal, the coil in the solenoid valve is energized.
A plunger will then move to seal the canister vent. The ability to seal
the vent is necessary for the on board diagnosis of other evaporative
emission control system components.
This solenoid valve is used only for diagnosis, and usually remains
opened.
When the vent is closed, under normal purge conditions, the evapo-
rative emission control system is depressurized and allows “EVAP
Control System” diagnosis.
EVAP Control System Pressure SensorINFOID:0000000009462081
The EVAP control system pressure sensor detects pressure in the
purge line. The sensor output voltage to the ECM increases as pres-
sure increases.
Battery Current Sensor (With Battery Temperature Sensor)INFOID:0000000009462082
OUTLINE
The power generation voltage variable control enables fuel con-
sumption to be decreased by reducing the engine load which is
caused by the power generation of the generator.
Based on sensor signals, ECM judges whether or not the power
generation voltage variable contro l is performed. When performing
the power generation voltage variable control, ECM calculates the
target power generation voltage based on the sensor signal. And
ECM sends the calculated value as the power generation command
value to IPDM E/R. For the details of the power generation voltage
variable control, refer to CHG-10, "System Description"
.
CAUTION:
Never connect the electrical co mponent or the ground wire
directly to the battery terminal. The connection cau ses the malfunction of the power generation volt-
age variable control, and then the battery discharge may occur.
BATTERY CURRENT SENSOR
The battery current sensor is installed to the battery negative cable. The sensor measures the charging/dis-
charging current of the battery.
BATTERY TEMPERATURE SENSOR
PBIB1263E
PBIB3370E
JPBIA3262ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM