Nissan Tiida C11. Instruction — part 450

EC-450

< FUNCTION DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

INTAKE VALVE TIMING CONTROL

INTAKE VALVE TIMING CONTROL

System Diagram

INFOID:0000000001693488

System Description

INFOID:0000000001693489

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.

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*

INTAKE VALVE TIMING CONTROL

EC-451

< FUNCTION DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Component Parts Location

INFOID:0000000001693490

1.

Ignition coil (with power transistor)
and spark plug

2.

Intake valve timing control solenoid
valve

3.

Refrigerant pressure sensor

4.

Knock sensor

5.

Fuel injector

6.

Cooling fan motor

7.

Camshaft position sensor (PHASE)

8.

IPDM E/R

9.

ECM

10. Mass air flow sensor (with intake air

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

PBIB2939E

EC-452

< FUNCTION DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

INTAKE VALVE TIMING CONTROL

1.

Mass air flow sensor
(with intake air temperature sensor)

2.

Engine coolant temperature sensor

3.

Electric throttle control actuator

4.

Camshaft position sensor (PHASE)

5.

Ignition coil (with power transistor)

6.

Fuel injector

7.

EVAP canister purge volume control
solenoid valve

Vehicle front

PBIB2940E

INTAKE VALVE TIMING CONTROL

EC-453

< FUNCTION DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

1.

ECM harness connectors

2.

ECM

3.

IPDM E/R

4.

Fuel pump fuse (15A)

5.

Intake valve timing control solenoid
valve

6.

Knock sensor

7.

Refrigerant pressure sensor

8.

PCV valve

Vehicle front

PBIB2941E