Infiniti FX35 / FX45. Manual - part 464

CAN COMMUNICATION

EC-617

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CAN COMMUNICATION

System Description

INFOID:0000000001326499

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
Refer to 

LAN-44, "CAN Communication Signal Chart"

, about CAN communication for detail.

EC-618

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EVAPORATIVE EMISSION SYSTEM

EVAPORATIVE EMISSION SYSTEM

Description

INFOID:0000000001326500

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.

EVAPORATIVE EMISSION LINE DRAWING

PBIB1631E

EVAPORATIVE EMISSION SYSTEM

EC-619

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: Vehicle front

: From next page

1.

Intake manifold collector

2.

EVAP canister purge volume control 
solenoid valve

3.

EVAP service port

NOTE:
Do not use soapy water or any type of solvent while installing vacuum hose or purge hoses.

PBIB3221E

EC-620

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EVAPORATIVE EMISSION SYSTEM

Component Inspection

INFOID:0000000001326501

EVAP CANISTER

PBIB1523E