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![INFINITI FX35 2008 Service Manual
CAN COMMUNICATIONEC-617
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CAN COMMUNICATION
System DescriptionINFOID:0000000001326499
CAN (Controller Area Network) is a serial communic INFINITI FX35 2008 Service Manual
CAN COMMUNICATIONEC-617
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CAN COMMUNICATION
System DescriptionINFOID:0000000001326499
CAN (Controller Area Network) is a serial communic](/manual-img/42/57017/w960_57017-1856.png)
CAN COMMUNICATIONEC-617
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CAN COMMUNICATION
System DescriptionINFOID:0000000001326499
CAN (Controller Area Network) is a serial communication li
ne 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.
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![INFINITI FX35 2008 Service Manual
EC-618
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EVAPORATIVE EMISSION SYSTEM
EVAPORATIVE EMISSION SYSTEM
DescriptionINFOID:0000000001326500
SYSTEM DESCRIPTION
The evaporative emission system is used to reduce INFINITI FX35 2008 Service Manual
EC-618
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EVAPORATIVE EMISSION SYSTEM
EVAPORATIVE EMISSION SYSTEM
DescriptionINFOID:0000000001326500
SYSTEM DESCRIPTION
The evaporative emission system is used to reduce](/manual-img/42/57017/w960_57017-1857.png)
EC-618
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EVAPORATIVE EMISSION SYSTEM
EVAPORATIVE EMISSION SYSTEM
DescriptionINFOID:0000000001326500
SYSTEM DESCRIPTION
The evaporative emission system is used to reduce hydr
ocarbons emitted into the atmosphere from the fuel
system. This reduction of hydrocarbons is accomplis hed by activated charcoals in the EVAP canister.
The fuel vapor in the sealed fuel tank is led into t he EVAP canister which contains activated carbon and the
vapor is stored there when the engine is not oper ating 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 contro l 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 al so shuts off the vapor purge line during decelerating.
EVAPORATIVE EMISSION LINE DRAWING
PBIB1631E
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EVAPORATIVE EMISSION SYSTEMEC-619
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: Vehicle front : From next page
1. Intake manifold collector 2. EVAP canister purge volume control solenoid valve3. EVAP service port
NOTE:
Do not use soapy water or any type of solvent while installing vacuum hose or purge hoses.
PBIB3221E
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EC-620
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EVAPORATIVE EMISSION SYSTEM
Component Inspection
INFOID:0000000001326501
EVAP CANISTER
PBIB1523E
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EVAPORATIVE EMISSION SYSTEMEC-621
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Check EVAP canister as follows:
1. Block port
B.
2. Blow air into port A and check that it flows f INFINITI FX35 2008 Service Manual
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Check EVAP canister as follows:
1. Block port
B.
2. Blow air into port A and check that it flows f](/manual-img/42/57017/w960_57017-1860.png)
EVAPORATIVE EMISSION SYSTEMEC-621
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Check EVAP canister as follows:
1. Block port
B.
2. Blow air into port A and check that it flows freely out of port C.
3. Release blocked port B.
4. Apply vacuum pressure to port B and check that vacuum pres-
sure exists at the ports A and C.
5. Block port A and B.
6. Apply pressure to port C and check that there is no leakage.
FUEL TANK VACUUM RELIEF VALVE (BUILT INTO FUEL FILLER CAP)
1. Wipe clean valve housing.
2. Check valve opening pressure and vacuum.
3. If out of specificat ion, replace fuel filler cap as an assembly.
CAUTION:
Use only a genuine fuel filler cap as a replacement. If an incor-
rect fuel filler cap is used, the MIL may come on.
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to EC-945.
FUEL TANK TEMPERATURE SENSOR
Refer to EC-888.
EVAP CANISTER VENT CONTROL VALVE
Refer to EC-949.
EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-965.
EVAP SERVICE PORT
PBIB1044E
SEF445Y
Pressure:
15.3 - 20.0 kPa (0.156 - 0.204 kg/cm2, 2.22 -
2.90 psi)
Vacuum: −6.0 to −3.3 kPa ( −0.061 to −0.034 kg/cm
2,
− 0.87 to −0.48 psi)
SEF943S
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![INFINITI FX35 2008 Service Manual
EC-622
< SERVICE INFORMATION >[VK45DE]
EVAPORATIVE EMISSION SYSTEM
Positive pressure is delivered to the EVAP system through the EVAP
service port. If fuel vapor leak
age in the EVAP system occurs, u INFINITI FX35 2008 Service Manual
EC-622
< SERVICE INFORMATION >[VK45DE]
EVAPORATIVE EMISSION SYSTEM
Positive pressure is delivered to the EVAP system through the EVAP
service port. If fuel vapor leak
age in the EVAP system occurs, u](/manual-img/42/57017/w960_57017-1861.png)
EC-622
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EVAPORATIVE EMISSION SYSTEM
Positive pressure is delivered to the EVAP system through the EVAP
service port. If fuel vapor leak
age in the EVAP system occurs, use a
leak detector to locate the leak.
Removal and InstallationINFOID:0000000001326502
EVAP CANISTER
Tighten EVAP canister as shown in the figure.
EVAP CANISTER VENT CONTROL VALVE
1. Turn EVAP canister vent control valve counterclockwise.
2. Remove the EVAP canister vent control valve.
Always replace O-ring with a new one.
How to Detect Fuel Vapor LeakageINFOID:0000000001326503
CAUTION:
Do not use compressed air or a high pressure pump.
Do not exceed 4.12 kPa (0.042 kg/cm
2, 0.6 psi) of pressure in EVAP system.
NOTE:
Do not start engine.
Improper installation of EVAP service port adapt er to the EVAP service port may cause a leak.
WITH CONSULT-III
1. Attach the EVAP service port adapter securely to the EVAP service port.
2. Also attach the pressure pump and hose to the EVAP service port adapter.
SEF462UA
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EVAPORATIVE EMISSION SYSTEMEC-623
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3. Turn ignition switch ON.
4. Select the “EVAP SYSTEM CLOSE” of
“WORK SUPPORT MODE” with C INFINITI FX35 2008 Service Manual
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3. Turn ignition switch ON.
4. Select the “EVAP SYSTEM CLOSE” of
“WORK SUPPORT MODE” with C](/manual-img/42/57017/w960_57017-1862.png)
EVAPORATIVE EMISSION SYSTEMEC-623
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3. Turn ignition switch ON.
4. Select the “EVAP SYSTEM CLOSE” of
“WORK SUPPORT MODE” with CONSULT-III.
5. Touch “START”. A bar graph (Pressure indicating display) will appear on the screen.
6. Apply positive pressure to the EVAP system until t he pressure indicator reaches the middle of the bar
graph.
7. Remove EVAP service port adapter and hose with pressure pump.
8. Locate the leak using a leak detector. Refer to EC-618,
"Description".
WITHOUT CONSULT-III
1. Attach the EVAP service port adapter securely to the EVAP ser-
vice port.
2. Also attach the pressure pump with pressure gauge to the EVAP service port adapter.
3. Apply battery voltage between the terminals of EVAP c anister vent control valve to make a closed EVAP
system.
4. To locate the leak, deliver positive pressure to the EVAP system until pressure gauge points reach 1.38 to
2.76 kPa (0.014 to 0.028 kg/cm
2, 0.2 to 0.4 psi).
5. Remove EVAP service port adapter and hose with pressure pump.
6. Locate the leak using a leak detector. Refer to EC-618, "
Description".
SEF200U
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![INFINITI FX35 2008 Service Manual
EC-624
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ON BOARD REFUELING VAPOR RECOVERY (ORVR)
ON BOARD REFUELING VA
POR RECOVERY (ORVR)
System DescriptionINFOID:0000000001326504
From the beginning of refueling, th INFINITI FX35 2008 Service Manual
EC-624
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ON BOARD REFUELING VAPOR RECOVERY (ORVR)
ON BOARD REFUELING VA
POR RECOVERY (ORVR)
System DescriptionINFOID:0000000001326504
From the beginning of refueling, th](/manual-img/42/57017/w960_57017-1863.png)
EC-624
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ON BOARD REFUELING VAPOR RECOVERY (ORVR)
ON BOARD REFUELING VA
POR RECOVERY (ORVR)
System DescriptionINFOID:0000000001326504
From the beginning of refueling, the air and vapor insi de the fuel tank go through refueling EVAP vapor cut
valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by the EVAP canister and the air is
released to the atmosphere.
When the refueling has reached the full level of the fuel tank, the refueling EVAP vapor cut valve is closed and
refueling is stopped because of auto shut-off. The vapor which was absorbed by the EVAP canister is purged
during driving.
WARNING:
When conducting inspections below, be sure to observe the following:
Put a “CAUTION: FLAMMABLE” sign in workshop.
Do not smoke while servicing fuel system. Keep open flames and sparks away from work area.
Be sure to furnish the workshop with a CO
2 fire extinguisher.
CAUTION:
Before removing fuel line parts, carry out the following procedures:
- Put drained fuel in an explosion-pr oof container and put lid on securely.
- Release fuel pressure from fuel line. Refer to EC-665, "
Fuel Pressure Check".
- Disconnect battery ground cable.
Always replace O-ring when the fuel gauge retainer is removed.
Do not kink or twist hose and tube when they are installed.
Do not tighten hose and clamps excessively to avoid damaging hoses.
After installation, run engine an d check for fuel leaks at connection.
Do not attempt to top off the fuel tank afte r the fuel pump nozzle shuts off automatically.
Continued refueling may cause fu el overflow, resulting in fuel spray and possibly a fire.
Diagnosis ProcedureINFOID:0000000001326505
SYMPTOM: FUEL ODOR FROM EVAP CANISTER IS STRONG.
1.CHECK EVAP CANISTER
1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
2. Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be l ess than 2.1 kg (4.6 lb).
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK IF EVAP CANISTER SATURATED WITH WATER
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