2011 NISSAN TIIDA oxygen sensor

EC-14
Wiring Diagram ....................................................1005
Diagnosis Procedure ...........................................1005
ELECTRICAL LOAD SIGNAL ........................1007
CONSULT-III Reference Value in Data Monitor
Mode ....................................................................
1007
Diagnosis Procedure ...........................................1007
FUEL INJECTOR ............................................1009
Component Description .......................................1009
CONSULT-III Reference Va lue in Data Monitor
Mode ....................................................................
1009
Wiring Diagram ....................................................1010
Diagnosis Procedure ...........................................1011
Component Inspection .........................................1013
Removal and Installation .....................................1013
FUEL PUMP ....................................................1014
Description ...........................................................1014
CONSULT-III Reference Va lue in Data Monitor
Mode ....................................................................
1014
Wiring Diagram ....................................................1015
Diagnosis Procedure ...........................................1016
Component Inspection .........................................1018
Removal and Installation .....................................1018
IGNITION SIGNAL ..........................................1019
Component Description .......................................1019
Wiring Diagram ....................................................1020
Diagnosis Procedure ............................................1023
Component Inspection .........................................1026
Removal and Installation ......................................1027
REFRIGERANT PRESSURE SENSOR .........1028
Component Description .......................................1028
Wiring Diagram ....................................................1029
Diagnosis Procedure ............................................1030
Removal and Installation ......................................1032
MIL AND DATA LINK CONNECTOR .............1033
Wiring Diagram ....................................................1033
SERVICE DATA AND SPECIFICATIONS
(SDS) ..............................................................
1035
Fuel Pressure .......................................................1035
Idle Speed and Ignition Timing ............................1035
Calculated Load Value .........................................1035
Mass Air Flow Sensor ..........................................1035
Intake Air Temperature Se nsor ............................1035
Engine Coolant Temperature Sensor ..................1035
Air Fuel Ratio (A/F) Sensor 1 Heater ...................1036
Heated Oxygen sensor 2 Heater .........................1036
Crankshaft Position Sensor (POS) ......................1036
Camshaft Position Sensor (PHASE) ....................1036
Throttle Control Motor ...... ....................................1036
Fuel Injector .........................................................1036
Fuel Pump ............................................................1036
Revision: May 2010 2011 Versa

HOW TO SET SRT CODEEC-29
< BASIC INSPECTION > [HR16DE]
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HOW TO SET SRT CODE
DescriptionINFOID:0000000006314657
OUTLINE
In order to set all SRTs, the self-diagnoses as in
the “SRT ITEM” table must have been performed at least
once. Each diagnosis may require actual driving for a long period of time under various conditions.
SRT ITEM
The table below shows required self-diagnostic items to set the SRT to “CMPLT”.
• *1: Though displayed on the CONSULT-III screen, “HO2S HTR” is not SRT item.
• *2: If completion of several SRTs is required, per form driving patterns (DTC confirmation procedure), one by
one based on the priority for models with CONSULT-III.
SRT SERVICE PROCEDURE
If a vehicle has failed the state emissions inspection due to one or more SRT items indicating “INCMP”, review
the flowchart diagnostic sequence, referring to the following flowchart.
SRT item*1
(CONSULT-III indication) Performance
Priority*2Required self-diagnostic items to set the SRT to “CMPLT” Corresponding
DTC No.
CATALYST 2 Three way catalyst function P0420
EVAP SYSTEM 2 EVAP control system purge flow monitoring P0441
1 EVAP control system P0442
2 EVAP control system P0456
HO2S 2 Air fuel ratio (A/F) sensor 1 P0133
Heated oxygen sensor 2 P0137
Heated oxygen sensor 2 P0138
Heated oxygen sensor 2 P0139
EGR/VVT SYSTEM 3 Intake value timing control function P0011
Revision: May 2010 2011 Versa

EC-44
< FUNCTION DIAGNOSIS >[HR16DE]
ENGINE CONTROL SYSTEM
1. Air fuel ratio (A/F) sensor 1 2. Three way catalyst (Manifold) 3. Heated oxygen sensor 2
4. Three way catalyst (Under floor) 5. Muffler
Vehicle front
1. Exhaust manifold 2. Air fuel ratio (A/F) sensor 1 3. Heated oxygen sensor 2
4. Heated oxygen sensor 2 harness connector
Vehicle front
JMBIA2192ZZ
PBIB2943E
Revision: May 2010 2011 Versa

EC-46
< FUNCTION DIAGNOSIS >[HR16DE]
ENGINE CONTROL SYSTEM
Crankshaft position sensor (POS)
EC-267, "Description"
Cooling fan motorEC-71, "System Description"
Electric throttle control actuatorEC-400, "Description"
Engine coolant temperature sensorEC-168, "Description"
EVAP canister purge volume control solenoid valveEC-295, "Description"
EVAP canister vent control valveEC-305, "Description"
EVAP control system pressure sensorEC-316, "Description"
Fuel injectorEC-433, "Description"
Fuel level sensorEC-346, "Description"
Fuel pumpEC-437, "Description"
Fuel tank temperature sensorEC-244, "Description"
Heated oxygen sensor 2EC-207, "Description"
Heated oxygen sensor 2 heaterEC-142, "Description"
Ignition signalEC-442, "Description"
Intake air temperature sensorEC-164, "Description"
Intake valve timing control solenoid valveEC-89, "System Description"
Knock sensorEC-263, "Description"
Mass air flow sensorEC-150, "Description"
PCV valveEC-459, "Description"
Refrigerant pressure sensorEC-460, "Description"
Stop lamp switchEC-383, "Description"
Throttle control motorEC-396, "Description"
Throttle control motor relayEC-387, "Description"
Throttle position sensorEC-174, "Description"
Component Reference
Revision: May 2010 2011 Versa

MULTIPORT FUEL INJECTION SYSTEMEC-47
< FUNCTION DIAGNOSIS > [HR16DE]
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MULTIPORT FUEL INJECTION SYSTEM
System DiagramINFOID:0000000005929767
System DescriptionINFOID:0000000005929768
INPUT/OUTPUT SIGNAL CHART
*1: This sensor is not used to control the engine system under normal conditions.
JMBIA2193GB
Sensor
Input signal to ECMECM functionActuator
Crankshaft position sensor (POS) Engine speed*
3
Piston position
Fuel injection
& mixture ratio
controlFuel injector
Camshaft position sensor (PHASE)
Mass air flow sensor
Amount of intake air
Intake air temperature sensor Intake air temperature
Engine coolant temperature sensor Engine coolant temperature
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Park/neutral position (PNP) switch (M/T)
Transmission range switch (A/T) Gear position
Battery Battery voltage*
3
Knock sensor Engine knocking condition
Heated oxygen sensor 2*
1Density of oxygen in exhaust gas
EPS control unit Power steering operation*
2
ABS actuator and electric unit (control unit)
Vehicle speed*2
Combination meter
BCMAir conditioner ON signal*
2
Revision: May 2010 2011 Versa

EC-48
< FUNCTION DIAGNOSIS >[HR16DE]
MULTIPORT FUEL INJECTION SYSTEM
*2: This signal is sent to the ECM via the CAN communication line.
*3: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
The amount of fuel injected from the fuel injector is
determined by the ECM. The ECM controls the length of
time the valve remains open (injection pulse duration). T he amount of fuel injected is a program value in the
ECM memory. The program value is preset by engine operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from t he crankshaft position sensor (POS), camshaft position
sensor (PHASE) and the ma ss air flow sensor.
VARIOUS FUEL INJECTION I NCREASE/DECREASE COMPENSATION
In addition, the amount of fuel injected is compensated to improve engine performance under various operat-
ing conditions as listed below.

• During warm-up
• When starting the engine
• During acceleration
• Hot-engine operation
• When selector lever is changed from N to D (A/T models)
• High-load, high-speed operation

• During deceleration
• During high engine speed operation
MIXTURE RATIO FEEDBACK CONTROL (CLOSED LOOP CONTROL)
The mixture ratio feedback system prov ides the best air-fuel mixture ratio for driveability and emission control.
The three way catalyst (manifold) can better reduce CO, HC and NOx emissions. This system uses A/F sen-
sor 1 in the exhaust manifold to monitor whether the engine operation is rich or lean. The ECM adjusts the
injection pulse width according to the sensor voltage signal. For more information about A/F sensor 1, refer to
EC-185, "
Description". This maintains the mixture ratio within the range of stoichiometric (ideal air-fuel mix-
ture).
This stage is referred to as the closed loop control condition.
Heated oxygen sensor 2 is located downstream of the th ree way catalyst (manifold). Even if the switching
characteristics of A/F sensor 1 shift, the air-fuel ratio is controlled to stoichiometric by the signal from heated
oxygen sensor 2.
• Open Loop Control
The open loop system condition refers to when the ECM detects any of the following conditions. Feedback
control stops in order to maintain stabilized fuel combustion.
- Deceleration and acceleration
- High-load, high-speed operation
- Malfunction of A/F sensor 1 or its circuit
- Insufficient activation of A/F sensor 1 at low engine coolant temperature
- High engine coolant temperature
- During warm-up
- After shifting from N to D (A/T models)
- When starting the engine
MIXTURE RATIO SELF-LEARNING CONTROL
The mixture ratio feedback control system monitors t he mixture ratio signal transmitted from A/F sensor 1.
This feedback signal is then sent to the ECM. The ECM c ontrols the basic mixture ratio as close to the theoret-
ical mixture ratio as possible. However, the basic mi xture ratio is not necessarily controlled as originally
PBIB2793E
Revision: May 2010 2011 Versa

MULTIPORT FUEL INJECTION SYSTEMEC-53
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1. Air fuel ratio (A/F) sensor 1 2. Three way catalyst (Manifold) 3. Heated oxygen sensor 2
4. Three way catalyst (Under floor) 5. Muffler
Vehicle front
1. Exhaust manifold 2. Air fuel ratio (A/F) sensor 1 3. Heated oxygen sensor 2
4. Heated oxygen sensor 2 harness connector
Vehicle front
JMBIA2192ZZ
PBIB2943E
Revision: May 2010 2011 Versa

MULTIPORT FUEL INJECTION SYSTEMEC-55
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Engine coolant temperature sensor
EC-178, "Description"
Fuel injectorEC-433, "Description"
Heated oxygen sensor 2EC-207, "Description"
Intake air temperature sensorEC-164, "Description"
Knock sensorEC-263, "Description"
Mass air flow sensorEC-150, "Description"
Throttle position sensorEC-174, "Description"
Component Reference
Revision: May 2010 2011 Versa