Nissan Juke F15. Instruction — part 449
COMPONENT PARTS
EC-609
< SYSTEM DESCRIPTION >
[MR EXCEPT FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Fuel Rail Pressure Sensor
INFOID:0000000012198155
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:0000000012198156
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.
Mass Air Flow Sensor (With Intake Air Temperature Sensor 1)
INFOID:0000000012198157
MASS AIR FLOW SENSOR
The mass air flow sensor (MAF sensor) is placed in the stream of
intake air. It measures the intake flow rate by measuring a part of the
entire intake flow. The MAF sensor controls the temperature of the
heater in sensing element to a certain amount.
The temperature distribution around the heater changes according
to the increase in intake air volume. The change is detected by a
thermistor and the air volume data is sent to ECM by the MAF sen-
sor.
INTAKE AIR TEMPERATURE SENSOR 1
The intake air temperature sensor 1 (IAT sensor 1) is built-into the mass air flow sensor. The sensor detects
intake air temperature and transmits a signal to the ECM.
The temperature sensing unit uses a thermistor which is sensitive to the change in temperature.
<Reference data>
*: These data are reference values on the diagnosis tool.
Turbocharger
INFOID:0000000012198158
TURBOCHARGER BOOST CONTROL
JSBIA0291ZZ
JPBIA4614ZZ
JSBIA5658GB
Intake air temperature
Voltage
*
25
°C (77°F)
2.0 – 2.2 V
80
°C (176°F)
3.0 – 3.2 V
EC-610
< SYSTEM DESCRIPTION >
[MR EXCEPT FOR NISMO RS MODELS]
COMPONENT PARTS
The electric wastegate control actuator operates based on a signal
from ECM and adjusts the turbo charger boost control valve angle
via link rod. The electronic control allows the turbocharger wastegate
control valve to be opened even in non-supercharging regions. This
reduces pumping losses and contributes to the fuel economy. In
charging regions, wastegate valve angles are controlled by the elec-
tronic control with a high degree of accuracy.
TURBOCHARGER BYPASS CONTROL
When an operating signal received from ECM energizes the sole-
noid, the turbocharger bypass control valve opens the valve by suck-
ing in the plunger. The electronically-controlled turbocharger bypass
control valve quickly opens the bypass valve when releasing the
accelerator pedal during driving under supercharge. This reduces
surge sound generated by the back flow of supercharged air to the
compressor fin.
Turbocharger Boost Sensor (With Intake Air Temperature Sensor 2)
INFOID:0000000012198159
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.
JSBIA5475GB
JSBIA5476GB
JPBIA4620ZZ
JMBIA1453GB
COMPONENT PARTS
EC-611
< SYSTEM DESCRIPTION >
[MR EXCEPT FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
<Reference data>
*: These data are reference values and are measured between ECM terminals.
Multi-way Control Valve
INFOID:0000000012198160
The multi-way control valve changes flow paths to Heater & EGR
cooler, Oil cooler, and Radiator, according to coolant temperature
and driving conditions.
Engine Coolant Temperature Sensor 1
INFOID:0000000012198161
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.
Intake air temperature
[
°C (°F)]
Voltage
*
(V)
Resistance (k
Ω)
25 (77)
3.27-3.35
1.940 - 2.089
80 (176)
1.19-1.23
0.310 - 0.322
SEF012P
JSBIA5643ZZ
SEF594K
Engine coolant temperature
[
°C (°F)]
Voltage
*
(V)
Resistance (k
Ω)
–10 (14)
4.29-4.50
7.0 - 11.4
20 (68)
3.48-3.58
2.37 - 2.63
50 (122)
2.03-2.49
0.68 - 1.00
90 (194)
0.97-1.04
0.236 - 0.260
SEF012P
EC-612
< SYSTEM DESCRIPTION >
[MR EXCEPT FOR NISMO RS MODELS]
COMPONENT PARTS
Engine Coolant Temperature Sensor 2
INFOID:0000000012198162
The engine coolant temperature sensor is used to detect the radia-
tor-outlet water temperature. The sensor modifies a voltage signal
from the ECM. The modified signal returns to the ECM as the radia-
tor-outlet water temperature input. The sensor uses a thermistor
which is sensitive to the change in temperature. The electrical resis-
tance of the thermistor decreases as temperature increases.
<Reference data>
*: These data are reference values and are measured between ECM terminals.
Crankshaft Position Sensor (POS)
INFOID:0000000012198164
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.
Camshaft Position Sensor (PHASE)
INFOID:0000000012198165
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.
SEF594K
Engine coolant temperature
[
°C (°F)]
Voltage
*
(V)
Resistance (k
Ω)
–10 (14)
4.29-4.50
7.0 - 11.4
20 (68)
3.48-3.58
2.37 - 2.63
50 (122)
2.03-2.49
0.68 - 1.00
90 (194)
0.97-1.04
0.236 - 0.260
SEF012P
JPBIA4617ZZ
JSBIA5654GB
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