Nissan Teana J32. Manual - part 384

EC-74

< FUNCTION DIAGNOSIS >

[VQ25DE, VQ35DE]

ELECTRONIC CONTROLLED ENGINE MOUNT

1.

Electronic controlled engine mount 
control solenoid valve

2.

VIAS control solenoid valve 1

3.

VIAS control solenoid valve 2

4.

EVAP canister purge volume control 
solenoid valve

1.

Electronic controlled engine mount 
control solenoid valve

2.

VIAS control solenoid valve

3.

EVAP canister purge volume control 
solenoid valve

1.

Intake valve timing control solenoid 
valve (bank 1)

2.

Intake valve timing control solenoid 
valve (bank 2)

3.

Data link connector

1.

Stop lamp switch

2.

ASCD brake switch

3.

Accelerator pedal position sensor

JMBIA1381GB

JMBIA1382GB

JMBIA1383ZZ

JMBIA1384ZZ

ELECTRONIC CONTROLLED ENGINE MOUNT

EC-75

< FUNCTION DIAGNOSIS >

[VQ25DE, VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Component Description

INFOID:0000000003856489

1.

ASCD steering switch

2.

CANCEL switch

3.

RESUME/ACCELERATE switch

4.

SET/COAST switch

5.

MAIN switch

1.

Fuel level sensor unit and fuel pump 
harness connector

2.

Fuel pressure regulator

3.

Fuel level sensor unit and fuel pump

: Vehicle front

JMBIA1120ZZ

JMBIA1385ZZ

Component

Reference

Camshaft position sensor (PHASE)

EC-222, "Description"

Crankshaft position sensor (POS)

EC-218, "Description"

Electronic controlled engine mount control solenoid valve

EC-331, "Description"

EC-76

< FUNCTION DIAGNOSIS >

[VQ25DE, VQ35DE]

EVAPORATIVE EMISSION SYSTEM

EVAPORATIVE EMISSION SYSTEM

System Diagram

INFOID:0000000003949755

System Description

INFOID:0000000003949756

INPUT/OUTPUT SIGNAL CHART

*1: ECM determines the start signal status by the signals of engine speed and battery voltage.

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

JMBIA1524GB

Sensor

Input signal to ECM

ECM function

Actuator

Crankshaft position sensor (POS)

Engine speed*

1

Piston position

EVAP canister 
purge flow control

EVAP canister purge vol-
ume control solenoid valve

Camshaft position sensor (PHASE)

Mass air flow sensor

Amount of intake air

Engine coolant temperature sensor

Engine coolant temperature

Air fuel ratio (A/F) sensor 1

Density of oxygen in exhaust gas
(Mixture ratio feedback signal)

Throttle position sensor

Throttle position

Accelerator pedal position sensor

Accelerator pedal position

Battery

Battery voltage*

1

ABS actuator and electric unit (control unit)

Vehicle speed*

2

EVAPORATIVE EMISSION SYSTEM

EC-77

< FUNCTION DIAGNOSIS >

[VQ25DE, VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

SYSTEM DESCRIPTION

The evaporative emission system is used to reduce hydrocarbons emitted into the atmosphere from the fuel
system. This reduction of hydrocarbons is accomplished by activated charcoals in the EVAP canister.
The fuel vapor in the sealed fuel tank is led into the EVAP canister which contains activated carbon and the
vapor is stored there when the engine is not operating or when refueling to the fuel tank.
The vapor in the EVAP canister is purged by the air through the purge line to the intake manifold when the
engine is operating. EVAP canister purge volume control solenoid valve is controlled by ECM. When the
engine operates, the flow rate of vapor controlled by EVAP canister purge volume control solenoid valve is
proportionally regulated as the air flow increases.
EVAP canister purge volume control solenoid valve also shuts off the vapor purge line during decelerating and
idling.

EVAPORATIVE EMISSION LINE DRAWING

JMBIA1464GB