Nissan Teana J32. Instruction — 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
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