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Nissan Juke F15. Manual - part 449

COMPONENT PARTS

EC-609

< SYSTEM DESCRIPTION >

[MR EXCEPT FOR NISMO RS MODELS]

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.

*: These data are reference values on the diagnosis tool.

Turbocharger

INFOID:0000000012198158

TURBOCHARGER BOOST CONTROL

JSBIA0291ZZ

JPBIA4614ZZ

JSBIA5658GB

Intake air temperature

Voltage

°C (77°F)

2.0 – 2.2 V

°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]

<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

Content .. 447 448 449 450 ..