Nissan Juke (2012 year). Service Repair Manual — part 75
COMPONENT PARTS
EC-17
< SYSTEM DESCRIPTION >
[MR16DDT ]
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EXHAUST COMPARTMENT
2WD
JPBIA4608ZZ
1.
Exhaust valve timing control position
sensor
2.
Ignition coil
(with power transistor)
3.
A/F sensor 1
4.
PCV valve
5.
Exhaust valve timing control solenoid
valve
6.
Intake valve timing control solenoid
valve
7.
Camshaft position sensor (PHASE)
8.
High pressure fuel pump
9.
Fuel injector
10.
Engine oil temperature sensor
11.
Crankshaft position sensor (POS)
12.
Engine oil pressure sensor
13.
Knock sensor
14
Fuel rail pressure sensor
15.
Engine coolant temperature sensor
A.
Cylinder block left side
B.
Engine rear end
Revision: 2011 October
2012 JUKE
EC-18
< SYSTEM DESCRIPTION >
[MR16DDT ]
COMPONENT PARTS
AWD
1.
A/F sensor 1
2.
Heated oxygen sensor 2
JPBIA4609ZZ
Revision: 2011 October
2012 JUKE
COMPONENT PARTS
EC-19
< SYSTEM DESCRIPTION >
[MR16DDT ]
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BODY COMPARTMENT
1.
A/F sensor 1
2.
Heated oxygen sensor 2
JPBIA4610ZZ
Revision: 2011 October
2012 JUKE
EC-20
< SYSTEM DESCRIPTION >
[MR16DDT ]
COMPONENT PARTS
ENGINE CONTROL SYSTEM : Component Description
INFOID:0000000007576907
1.
ASCD steering switch
2.
Fuel level sensor unit, fuel filter and
fuel pump assembly
3.
Fuel tank temperature sensor
4.
Clutch pedal position switch
(with M/T models)
5.
Brake pedal position switch
(with M/T models)
6.
Stop lamp switch
(with M/T models)
7.
Accelerator pedal position sensor
(with M/T models)
8.
Brake pedal position switch
(with CVT models)
9.
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
A.
Under of right side second seat
B.
Periphery of pedals
C.
Under of left side front seat
D.
Fuel tank rear
: Vehicle front
JPBIA4893ZZ
Component
Reference
ECM
Accelerator pedal position sensor
EC-22, "Accelerator Pedal Position Sensor"
Revision: 2011 October
2012 JUKE
COMPONENT PARTS
EC-21
< SYSTEM DESCRIPTION >
[MR16DDT ]
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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
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
Mass air flow sensor
EC-26, "Mass Air Flow Sensor (With Intake Air Temperature Sen-
sor 1)"
Intake air temperature sensor 1
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
Engine oil pressure sensor
EC-31, "Engine Oil Pressure Sensor"
Engine oil temperature sensor
EC-32, "Engine Oil Temperature Sensor"
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
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 ]
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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 ]
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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
[k
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 ]
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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.
A.
From boost pipe
B.
To boost control actuator
C.
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 ]
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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 ]
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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
ON
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
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