Content .. 73 74 75 76 ..

Nissan Juke (2012 year). Service Repair Manual - part 75

COMPONENT PARTS

EC-17

< SYSTEM DESCRIPTION >

[MR16DDT ]

EXHAUST COMPARTMENT

2WD

JPBIA4608ZZ

Exhaust valve timing control position
sensor

Ignition coil
(with power transistor)

A/F sensor 1

PCV valve

Exhaust valve timing control solenoid
valve

Intake valve timing control solenoid
valve

Camshaft position sensor (PHASE)

High pressure fuel pump

Fuel injector

10.

Engine oil temperature sensor

11.

Crankshaft position sensor (POS)

12.

Engine oil pressure sensor

13.

Knock sensor

Fuel rail pressure sensor

15.

Engine coolant temperature sensor

Cylinder block left side

Engine rear end

Revision: 2011 October

2012 JUKE

EC-18

< SYSTEM DESCRIPTION >

[MR16DDT ]

COMPONENT PARTS

AWD

A/F sensor 1

Heated oxygen sensor 2

JPBIA4609ZZ

Revision: 2011 October

2012 JUKE

COMPONENT PARTS

EC-19

< SYSTEM DESCRIPTION >

[MR16DDT ]

BODY COMPARTMENT

A/F sensor 1

Heated oxygen sensor 2

JPBIA4610ZZ

Revision: 2011 October

2012 JUKE

EC-20

< SYSTEM DESCRIPTION >

[MR16DDT ]

COMPONENT PARTS

ENGINE CONTROL SYSTEM : Component Description

INFOID:0000000007576907

ASCD steering switch

Fuel level sensor unit, fuel filter and
fuel pump assembly

Fuel tank temperature sensor

Clutch pedal position switch
(with M/T models)

Brake pedal position switch
(with M/T models)

Stop lamp switch
(with M/T models)

Accelerator pedal position sensor
(with M/T models)

Brake pedal position switch
(with CVT models)

Stop lamp switch
(with CVT models)

10.

Accelerator pedal position sensor
(with CVT models)

11.

G sensor
(with 2WD models)

12.

G sensor
(with AWD models)

13.

EVAP control system pressure sensor 14.

EVAP canister vent control valve

EVAP canister

Under of right side second seat

Periphery of pedals

Under of left side front seat

Fuel tank rear

: Vehicle front

JPBIA4893ZZ

Component

Reference

ECM

EC-22, "ECM"

Accelerator pedal position sensor

EC-22, "Accelerator Pedal Position Sensor"

Revision: 2011 October

2012 JUKE

COMPONENT PARTS

EC-21

< SYSTEM DESCRIPTION >

[MR16DDT ]

Electric throttle control actuator

EC-22, "Electric Throttle Control Actuator"

Throttle control motor

Throttle position sensor

Ignition coil with power transistor

EC-23, "Ignition Coil With Power Transistor"

Fuel injector

EC-24, "Fuel Injector"

High pressure fuel pump

EC-24, "High Pressure Fuel Pump"

Fuel rail pressure sensor

EC-25, "Fuel Rail Pressure Sensor"

Low pressure fuel pump

EC-25, "Low Pressure Fuel Pump"

Fuel tank temperature sensor

EC-25, "Fuel Tank Temperature Sensor"

Fuel level sensor

EC-25, "Fuel Level Sensor"

Mass air flow sensor

EC-26, "Mass Air Flow Sensor (With Intake Air Temperature Sen-
sor 1)"

Intake air temperature sensor 1

Turbocharger

EC-26, "Turbocharger"

Boost control actuator

Turbocharger boost control solenoid valve

Turbocharger boost sensor

EC-27, "Turbocharger Boost Sensor (With Intake Air Temperature
Sensor 2)"

Intake air temperature sensor 2

Engine coolant temperature sensor

EC-28, "Engine Coolant Temperature Sensor"

Crankshaft position sensor

EC-28, "Crankshaft Position Sensor (POS)"

Camshaft position sensor

EC-29, "Camshaft Position Sensor (PHASE)"

Intake valve timing control solenoid valve

EC-29, "Intake Valve Timing Control Solenoid Valve"

Exhaust valve timing control position sensor

EC-29, "Exhaust Valve Timing Control Position Sensor"

Exhaust valve timing control solenoid valve

EC-30, "Exhaust Valve Timing Control Solenoid Valve"

Air fuel ratio (A/F) sensor 1

EC-30, "Air Fuel Ratio (A/F) Sensor 1"

Heated oxygen sensor 2

EC-30, "Heated Oxygen Sensor 2"

Knock sensor

EC-31, "Knock Sensor"

Engine oil pressure sensor

EC-31, "Engine Oil Pressure Sensor"

Engine oil temperature sensor

EC-32, "Engine Oil Temperature Sensor"

Cooling fan

EC-32, "Cooling Fan"

EVAP canister purge volume control solenoid valve

EC-32, "EVAP Canister Purge Volume Control Solenoid Valve"

EVAP canister vent control valve

EC-33, "EVAP Canister Vent Control Valve"

EVAP control system pressure sensor

EC-33, "EVAP Control System Pressure Sensor"

Battery current sensor

EC-33, "Battery Current Sensor (With Battery Temperature Sen-
sor)"

Battery temperature sensor

Malfunction indicator lamp (MIL)

EC-34, "Malfunction Indicator lamp (MIL)"

Oil pressure warning lamp

EC-34, "Oil Pressure Warning Lamp"

Refrigerant pressure sensor

EC-34, "Refrigerant Pressure Sensor"

Stop lamp switch

EC-34, "Stop Lamp Switch & Brake Pedal Position Switch"

Brake pedal position switch

Clutch pedal position switch

EC-35, "Clutch Pedal Position Switch"

ASCD steering switch

EC-35, "ASCD Steering Switch"

Information display

EC-35, "Information Display"

Component

Reference

Revision: 2011 October

2012 JUKE

EC-22

< SYSTEM DESCRIPTION >

[MR16DDT ]

COMPONENT PARTS

ECM

INFOID:0000000007576908

The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine.

Accelerator Pedal Position Sensor

INFOID:0000000007576909

The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelera-
tor position and sends a signal to the ECM.

Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometers which transform the accelerator pedal
position into output voltage, and emit the voltage signal to the ECM.
In addition, these sensors detect the opening and closing speed of
the accelerator pedal and feed the voltage signals to the ECM. The
ECM judges the current opening angle of the accelerator pedal from
these signals and controls the throttle control motor based on these
signals.
Idle position of the accelerator pedal is determined by the ECM
receiving the signal from the accelerator pedal position sensor. The
ECM uses this signal for the engine operation such as fuel cut.

Electric Throttle Control Actuator

INFOID:0000000007576910

OUTLINE

JPBIA4618ZZ

JPBIA4615ZZ

PBIB1741E

Revision: 2011 October

2012 JUKE

COMPONENT PARTS

EC-23

< SYSTEM DESCRIPTION >

[MR16DDT ]

Electric throttle control actuator consists of throttle body, throttle valve, throttle control motor and throttle posi-
tion sensor.

THROTTLE CONTROL MOTOR RELAY

Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle
control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends
an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition
switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not
provided to the ECM.

THROTTLE CONTROL MOTOR

The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feed-
back to the ECM to control the throttle control motor to make the throttle valve opening angle properly in
response to driving condition.

THROTTLE POSITION SENSOR

The throttle position sensor responds to the throttle valve movement.
The throttle position sensor has two sensors. These sensors are a
kind of potentiometers which transform the throttle valve position into
output voltage, and emit the voltage signal to the ECM. In addition,
these sensors detect the opening and closing speed of the throttle
valve and feed the voltage signals to the ECM. The ECM judges the
current opening angle of the throttle valve from these signals and the
ECM controls the throttle control motor to make the throttle valve
opening angle properly in response to driving condition.

Ignition Coil With Power Transistor

INFOID:0000000007576911

The ignition signal from the ECM is sent to and amplified by the
power transistor. The power transistor turns ON and OFF the ignition
coil primary circuit. This ON/OFF operation induces the proper high
voltage in the coil secondary circuit.

JSBIA0270GB

PBIB0145E

JPBIA4613ZZ

Revision: 2011 October

2012 JUKE

EC-24

< SYSTEM DESCRIPTION >

[MR16DDT ]

COMPONENT PARTS

Fuel Injector

INFOID:0000000007576912

For the fuel injector, a high pressure fuel injector is used and this
enables a high-pressure fuel injection at a high voltage within a short
time. The ECM is equipped with an injector driver unit and actuates
the fuel injector at a high voltage (approximately 65 V at the maxi-
mum).

High Pressure Fuel Pump

INFOID:0000000007576913

The high pressure fuel pump is activated by the exhaust camshaft.
ECM controls the high pressure fuel pump control solenoid valve built into the high pressure fuel pump and
adjusts the amount of discharge by changing the suction timing of the low pressure fuel.

Operating Description

Operating Chart

JSBIA0287ZZ

JSBIA0285GB

JSBIA0286GB

Revision: 2011 October

2012 JUKE

COMPONENT PARTS

EC-25

< SYSTEM DESCRIPTION >

[MR16DDT ]

Fuel Rail Pressure Sensor

INFOID:0000000007576914

The fuel rail pressure (FRP) sensor is placed to the fuel rail and
measures fuel pressure in the fuel rail. The sensor transmits voltage
signal to the ECM. As the pressure increases, the voltage rises. The
ECM controls the fuel pressure in the fuel rail by operating high pres-
sure fuel pump. The ECM uses the signal from fuel rail pressure sen-
sor as a feedback signal.

Low Pressure Fuel Pump

INFOID:0000000007576915

The low pressure fuel pump is integrated with a fuel pressure regula-
tor and a fuel filter. This pump is build into the fuel tank.

Fuel Tank Temperature Sensor

INFOID:0000000007576916

The fuel tank temperature sensor is used to detect the fuel tempera-
ture inside the fuel tank. The sensor modifies a voltage signal from
the ECM. The modified signal returns to the ECM as the fuel temper-
ature input. The sensor uses a thermistor which is sensitive to the
change in temperature. The electrical resistance of the thermistor
decreases as temperature increases.

<Reference data>

*: These data are reference values and are measured between ECM terminals.

Fuel Level Sensor

INFOID:0000000007576917

The fuel level sensor is mounted in the fuel level sensor unit.
The sensor detects a fuel level in the fuel tank and transmits a signal to the combination meter. The combina-
tion meter sends the fuel level sensor signal to the ECM via the CAN communication line.
It consists of two parts, one is mechanical float and the other is variable resistor. Fuel level sensor output volt-
age changes depending on the movement of the fuel mechanical float.

JSBIA0291ZZ

JPBIA4972ZZ

SEF012P

Fluid temperature

[

C (

F)]

Voltage*

[V]

Resistance

Ω

]

20 (68)

3.5

2.3 - 2.7

50 (122)

2.2

0.79 - 0.90

Revision: 2011 October

2012 JUKE

EC-26

< SYSTEM DESCRIPTION >

[MR16DDT ]

COMPONENT PARTS

Mass Air Flow Sensor (With Intake Air Temperature Sensor 1)

INFOID:0000000007576918

MASS AIR FLOW SENSOR

The mass air flow sensor (1) is placed in the stream of intake air. It
measures the intake flow rate by measuring a part of the entire
intake flow. The mass air flow sensor controls the temperature of the
hot wire to a certain amount. The heat generated by the hot wire is
reduced as the intake air flows around it. The more air, the greater
the heat loss.
Therefore, the electric current supplied to hot wire is changed to
maintain the temperature of the hot wire as air flow increases. The
ECM detects the air flow by means of this current change.

INTAKE AIR TEMPERATURE SENSOR 1

The intake air temperature sensor 1 is built-into mass air flow sensor. The sensor detects intake air tempera-
ture and transmits a signal to the ECM.
The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical
resistance of the thermistor decreases in response to the temperature rise.

<Reference data>

*: These data are reference values and are measured between ECM terminals.

Turbocharger

INFOID:0000000007576919

Turbocharger boost is controlled by adjusting the pressure to the dia-
phragm of the boost control actuator.

TURBOCHARGER BOOST CONTROL SOLENOID VALVE

Turbocharger boost control solenoid valve is ON/OFF duty controlled by ECM.

PBIA9559J

Intake air temperature

[

C (

F)]

Voltage

(V)

Resistance (k

Ω

)

25 (77)

3.3

1.800 - 2.200

80 (176)

1.2

0.283 - 0.359

SEF012P

JPBIA4612ZZ

Revision: 2011 October

2012 JUKE

COMPONENT PARTS

EC-27

< SYSTEM DESCRIPTION >

[MR16DDT ]

And it adjusts the pressure in the diaphragm of the boost control
actuator. The longer the turbocharger boost control solenoid valve is
ON, the higher the boost is increased.

Turbocharger Boost Sensor (With Intake Air Temperature Sensor 2)

INFOID:0000000007576920

TURBOCHARGER BOOST SENSOR

The turbocharger boost sensor detects the pressure of the outlet
side of the intercooler. When increasing the pressure, the output
voltage of the sensor to the ECM increases.

INTAKE AIR TEMPERATURE SENSOR 2

The intake air temperature sensor 2 is built-into turbocharger boost sensor. The sensor detects intake air tem-
perature and transmits a signal to the ECM.
The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical
resistance of the thermistor decreases in response to the temperature rise.

<Reference data>

*: These data are reference values and are measured between ECM terminals.

From boost pipe

To boost control actuator

To Air cleaner

JPBIA4616ZZ

JPBIA4620ZZ

JMBIA1453GB

Intake air temperature

[

C (

F)]

Voltage

(V)

Resistance (k

Ω

)

25 (77)

3.3

1.800 - 2.200

80 (176)

1.2

0.283 - 0.359

SEF012P

Revision: 2011 October

2012 JUKE

EC-28

< SYSTEM DESCRIPTION >

[MR16DDT ]

COMPONENT PARTS

Engine Coolant Temperature Sensor

INFOID:0000000007576921

The engine coolant temperature sensor is used to detect the engine
coolant temperature. The sensor modifies a voltage signal from the
ECM. The modified signal returns to the ECM as the engine coolant
temperature input. The sensor uses a thermistor which is sensitive to
the change in temperature. The electrical resistance of the ther-
mistor decreases as temperature increases.

<Reference data>

*: These data are reference values and are measured between ECM terminals.

Crankshaft Position Sensor (POS)

INFOID:0000000007576922

The crankshaft position sensor (POS) is located on the oil pan facing
the gear teeth (cogs) of the signal plate. It detects the fluctuation of
the engine revolution.
The sensor consists of a permanent magnet and Hall IC.
When the engine is running, the high and low parts of the teeth
cause the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor
changes.
The ECM receives the voltage signal and detects the fluctuation of
the engine revolution.
ECM receives the signals as shown in the figure.

SEF594K

Engine coolant temperature

[

C (

F)]

Voltage

(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)

0.9

0.236 - 0.260

SEF012P

JPBIA4617ZZ

JMBIA0714GB

Revision: 2011 October

2012 JUKE

COMPONENT PARTS

EC-29

< SYSTEM DESCRIPTION >

[MR16DDT ]

Camshaft Position Sensor (PHASE)

INFOID:0000000007576923

The camshaft position sensor (PHASE) senses the retraction of
intake camshaft to identify a particular cylinder. The camshaft posi-
tion sensor (PHASE) senses the piston position.
When the crankshaft position sensor (POS) system becomes inoper-
ative, the camshaft position sensor (PHASE) provides various con-
trols of engine parts instead, utilizing timing of cylinder identification
signals.
The sensor consists of a permanent magnet and Hall IC.
When engine is running, the high and low parts of the teeth cause
the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor changes.
ECM receives the signals as shown in the figure.

Intake Valve Timing Control Solenoid Valve

INFOID:0000000007576924

Intake valve timing control solenoid valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The intake valve timing control solenoid valve changes the oil
amount and direction of flow through intake valve timing control unit
or stops oil flow.
The longer pulse width advances valve angle.
The shorter pulse width retards valve angle.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix the intake valve angle at the control
position.

Exhaust Valve Timing Control Position Sensor

INFOID:0000000007576925

Exhaust valve timing control position sensor detects the protrusion of
the signal plate installed to the exhaust camshaft front end.
This sensor signal is used for sensing a position of the exhaust cam-
shaft.
The sensor consists of a permanent magnet and Hall IC.
When engine is running, the high and low parts of the teeth cause
the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor
changes.

JPBIA4621ZZ

JMBIA0714GB

PBIB1842E

JPBIA4622ZZ

Revision: 2011 October

2012 JUKE

EC-30

< SYSTEM DESCRIPTION >

[MR16DDT ]

COMPONENT PARTS

Exhaust Valve Timing Control Solenoid Valve

INFOID:0000000007576926

Exhaust valve timing control solenoid valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The exhaust valve timing control solenoid valve changes the oil
amount and direction of flow through exhaust valve timing control
unit or stops oil flow.
The longer pulse width retards valve angle.
The shorter pulse width advances valve angle.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix the exhaust valve angle at the control
position.

Air Fuel Ratio (A/F) Sensor 1

INFOID:0000000007576927

DESCRIPTION

The sensor element of the A/F sensor 1 is composed an electrode
layer, which transports ions. It has a heater in the element.
The sensor is capable of precise measurement = 1, but also in the
lean and rich range. Together with its control electronics, the sensor
outputs a clear, continuous signal throughout a wide range.
The exhaust gas components diffuse through the diffusion layer at
the sensor cell. An electrode layer is applied voltage, and this current
relative oxygen density in lean. Also this current relative hydrocar-
bon density in rich.

Therefore, the A/F sensor 1 is able to indicate air fuel ratio by this
electrode layer of current. In addition, a heater is integrated in the
sensor to ensure the required operating temperature of approxi-
mately 760

C (1,400

F).

A/F SENSOR 1 HEATER

A/F sensor 1 heater is integrated in the sensor.
The ECM performs ON/OFF duty control of the A/F sensor 1 heater corresponding to the engine operating
condition to keep the temperature of A/F sensor 1 element within the specified range.

Heated Oxygen Sensor 2

INFOID:0000000007576928

DESCRIPTION

PBIB1842E

JPBIA4038GB

PBIB3354E

Revision: 2011 October

2012 JUKE

COMPONENT PARTS

EC-31

< SYSTEM DESCRIPTION >

[MR16DDT ]

The heated oxygen sensor 2, after three way catalyst (manifold),
monitors the oxygen level in the exhaust gas.
Even if switching characteristics of the air fuel ratio (A/F) sensor 1
are shifted, the air fuel ratio is controlled to stoichiometric, by the sig-
nal from the heated oxygen sensor 2.
This sensor is made of ceramic zirconia. The zirconia generates volt-
age from approximately 1 V in richer conditions to 0 V in leaner con-
ditions.
Under normal conditions the heated oxygen sensor 2 is not used for
engine control operation.

HEATED OXYGEN SENSOR 2 HEATER

Heated oxygen sensor 2 heater is integrated in the sensor.
The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed,
amount of intake air and engine coolant temperature.

Knock Sensor

INFOID:0000000007576929

The knock sensor is attached to the cylinder block. It senses engine
knocking using a piezoelectric element. A knocking vibration from
the cylinder block is sensed as vibrational pressure. This pressure is
converted into a voltage signal and sent to the ECM.

Engine Oil Pressure Sensor

INFOID:0000000007576930

The engine oil pressure (EOP) sensor is detects engine oil pressure
and transmits a voltage signal to the ECM.

SEF327R

Engine speed

Heated oxygen sensor 2 heater

Above 3,600 rpm

OFF

Below 3,600 rpm after the following conditions are met.
• Engine: After warming up
• Keeping the engine speed between 3,500 and 4,000 rpm for 1

minute and at idle for 1 minute under no load

JSBIA0284ZZ

JSBIA0292ZZ

Revision: 2011 October

2012 JUKE

EC-32

< SYSTEM DESCRIPTION >

[MR16DDT ]

COMPONENT PARTS

Engine Oil Temperature Sensor

INFOID:0000000007576931

The engine oil temperature sensor is used to detect the engine oil
temperature. The sensor modifies a voltage signal from the ECM.
The modified signal returns to the ECM as the engine oil tempera-
ture input. The sensor uses a thermistor which is sensitive to the
change in temperature. The electrical resistance of the thermistor
decreases as temperature increases.

<Reference data>

*: These data are reference values and are measured between ECM terminals.

Cooling Fan

INFOID:0000000007576932

COOLING FAN CONTROL MODULE

Cooling fan control module receives ON/OFF pulse duty signal from IPDM E/R. Corresponding to this ON/OFF
pulse duty signal, cooling fan control module sends cooling fan motor operating voltage to cooling fan motor.
The revolution speed of cooling fan motor is controlled by duty cycle of the voltage.

COOLING FAN MOTOR

Cooling fan motor receives cooling fan motor operating voltage from cooling fan control module. The revolu-
tion speed of cooling fan motor is controlled by duty cycle of the voltage.

EVAP Canister Purge Volume Control Solenoid Valve

INFOID:0000000007576933

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.

SEF594K

Engine oil temperature

[

C (

F)]

Voltage

(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)

0.9

0.236 - 0.260

110 (230)

0.6

0.143 - 0.153

SEF012P

JSBIA0651ZZ

Revision: 2011 October

2012 JUKE

Content .. 73 74 75 76 ..