Nissan Qashqai (2007-2010). Manual — part 225

INTAKE VALVE TIMING CONTROL

EC-419

< FUNCTION DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

INTAKE VALVE TIMING CONTROL

System Diagram

INFOID:0000000001096769

System Description

INFOID:0000000001096770

INPUT/OUTPUT SIGNAL CHART

*: This signal is sent to the ECM through CAN communication line

SYSTEM DESCRIPTION

This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake
valve.
The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant
temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing (IVT) control sole-
noid valve depending on driving status. This makes it possible to control the shut/open timing of the intake
valve to increase engine torque in low/mid speed range and output in high-speed range.

Component Parts Location

INFOID:0000000001096771

MBIB1560E

Sensor

Input signal to ECM

ECM function

Actuator

Crankshaft position sensor (POS)

Engine speed and piston position

Intake valve
timing control

Intake valve timing control
solenoid valve

Camshaft position sensor (PHASE)

Engine coolant temperature sensor

Engine coolant temperature

Combination meter*

Vehicle speed

EC-420

< FUNCTION DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

INTAKE VALVE TIMING CONTROL

1.

Ignition coil (with power transistor)
and spark plug

2.

Refrigerant pressure sensor

3.

Intake valve timing control solenoid
valve

4.

Knock sensor,
Crankshaft position sensor (POS)

5.

Fuel injector

6.

Camshaft position sensor (PHASE)

7.

Cooling fan motor

8.

IPDM E/R

9.

ECM

10. Mass air flow sensor (with intake

temperature sensor)

11.

Engine coolant temperature sensor

12. Electric throttle control actuator

(with built in throttle position sensor
and throttle control motor)

13. EVAP canister purge volume control

solenoid valve

JMBIA0399ZZ

INTAKE VALVE TIMING CONTROL

EC-421

< FUNCTION DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

1.

Mass air flow sensor

2.

Engine coolant temperature sensor

Vehicle front

1.

Electric throttle control actuator

2.

Camshaft position sensor (PHASE)

Vehicle front

1.

Ignition coil (with power transistor)
and spark plug

2.

Fuel injector

3

EVAP canister purge volume control
solenoid valve

Vehicle front

1.

ECM harness connector

2.

IPDM E/R

Vehicle front

JMBIA0400ZZ

JMBIA0401ZZ

JMBIA0402ZZ

JMBIA0403ZZ

EC-422

< FUNCTION DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

INTAKE VALVE TIMING CONTROL

PBIB2942E

1.

Heated oxygen sensor 1

2.

Exhaust manifold cover

3.

Heated oxygen sensor 2

4.

Heated oxygen sensor 2 harness
connector

1.

Intake valve timing control solenoid
valve

2.

Knock sensor

1.

Refrigerant pressure sensor

2.

PCV valve

Vehicle front

JMBIA0406ZZ

JMBIA0404ZZ

JMBIA0405ZZ