Nissan Teana J32. Manual - part 387

EC-86

< FUNCTION DIAGNOSIS >

[VQ25DE, VQ35DE]

INTAKE VALVE TIMING CONTROL

INTAKE VALVE TIMING CONTROL

System Diagram

INFOID:0000000003856494

System Description

INFOID:0000000003856495

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.

JMBIA1491GB

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 oil temperature sensor

Engine oil temperature

Engine coolant temperature sensor

Engine coolant temperature

ABS actuator and electric unit (control unit)

Vehicle speed*

JMBIA0060GB

INTAKE VALVE TIMING CONTROL

EC-87

< FUNCTION DIAGNOSIS >

[VQ25DE, VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Component Parts Location

INFOID:0000000003857777

1.

Intake valve timing control solenoid 
valve (bank 1)

2.

Intake valve timing control solenoid 
valve (bank 2)

3.

Electronic controlled engine mount 
control solenoid valve

4.

Fuel injector (bank 2)

5.

Cooling fan motor-2

6.

A/F sensor 1 (bank 2)

7.

Ignition coil (with power transistor) 
and spark plug (bank 2)

8.

Camshaft position sensor (PHASE) 
(bank 2)

9.

Crankshaft position sensor (POS)

10. Engine coolant temperature sensor

11.

Cooling fan motor-1

12. ECM

13. Refrigerant pressure sensor

14. Battery current sensor

15. IPDM E/R

16. Mass air flow sensor (with intake air 

temperature sensor)

17. Electric throttle control actuator

18. Power valve actuator 2 (VQ35DE 

models)

19. EVAP canister purge volume control 

solenoid valve

20. Camshaft position sensor (PHASE) 

(bank 1)

21. Ignition coil (with power transistor) 

and spark plug (bank 1)

22. A/F sensor 1 (bank 1)

23. Fuel injector (bank 1)

24. VIAS control solenoid valve 1 and 2 

(VQ35DE models)

25. Power valve actuator 1

JMBIA1373ZZ

EC-88

< FUNCTION DIAGNOSIS >

[VQ25DE, VQ35DE]

INTAKE VALVE TIMING CONTROL

1.

Mass air flow sensor (with intake air 
temperature sensor)

2.

Electric throttle control actuator

: Vehicle front

1.

Ignition coil (with power transistor) 
and spark plug (bank 1)

2.

Fuel injector (bank 1)

3.

Fuel injector (bank 2)

4.

Ignition coil (with power transistor) 
and spark plug (bank 2)

5.

EVAP canister

: Vehicle front

1.

Knock sensor (bank 1)

2.

Knock sensor (bank 2)

3.

Knock sensor

: Vehicle front

JMBIA1374ZZ

JMBIA1375ZZ

JMBIA1376GB

JMBIA1377ZZ

INTAKE VALVE TIMING CONTROL

EC-89

< FUNCTION DIAGNOSIS >

[VQ25DE, VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

1.

Crankshaft position sensor (POS)

2.

Camshaft position sensor (PHASE) 
(bank 2)

3.

Camshaft position sensor (PHASE) 
(bank 1)

: Vehicle front

1.

Refrigerant pressure sensor

2.

Battery current sensor

: Vehicle front

1.

ECM

2.

Fuel pump fuse

3.

IPDM E/R

: Vehicle front

JMBIA1378ZZ

JMBIA1379ZZ

PBIB1686E