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EC-728
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AUTOMATIC SPEED CONTROL DEVICE (ASCD)
Revision: 2005 July 2005 FX
COAST OPERATION
When the SET/COAST switch is pressed during cruise control driving, decrease vehicle set speed until the
switch is released. And then ASCD will keep the new set speed.
RESUME OPERATION
When the RESUME/ACCELERATE switch is pressed after cancel operation other than pressing MAIN switch
is performed, vehicle speed will return to last set speed. To resume vehicle set speed, vehicle condition must
meet following conditions.
Brake pedal is released
A/T selector lever is in other than P and N positions
Vehicle speed is greater than 40 km/h (25 MPH) and less than 144 km/h (89 MPH)
Component DescriptionABS00E44
ASCD STEERING SWITCH
Refer to EC-1254 .
ASCD BRAKE SWITCH
Refer to EC-1271 , and EC-1378 .
STOP LAMP SWITCH
Refer to EC-1297 .
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to EC-1148 , EC-1150 , EC-1156 and EC-1161 .
ASCD INDICATOR
Refer to EC-1385 .
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CAN COMMUNICATION EC-729
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Revision: 2005 July 2005 FX
CAN COMMUNICATIONPFP:23710
System DescriptionABS00E45
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-30, "
CAN COMMUNICATION" , about CAN communication for detail.
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![INFINITI FX35 2005 Service Manual EC-730
[VK45DE]
EVAPORATIVE EMISSION SYSTEM
Revision: 2005 July 2005 FX
EVAPORATIVE EMISSION SYSTEMPFP:14950
DescriptionABS007XT
SYSTEM DESCRIPTION
The evaporative emission system is used to reduce hy INFINITI FX35 2005 Service Manual EC-730
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EVAPORATIVE EMISSION SYSTEM
Revision: 2005 July 2005 FX
EVAPORATIVE EMISSION SYSTEMPFP:14950
DescriptionABS007XT
SYSTEM DESCRIPTION
The evaporative emission system is used to reduce hy](/manual-img/42/57020/w960_57020-2122.png)
EC-730
[VK45DE]
EVAPORATIVE EMISSION SYSTEM
Revision: 2005 July 2005 FX
EVAPORATIVE EMISSION SYSTEMPFP:14950
DescriptionABS007XT
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.
PBIB1631E
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EVAPORATIVE EMISSION SYSTEM EC-731
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EVAPORATIVE EMISSION LINE DRAWING
PBIB1524E
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EC-732
[VK45DE]
EVAPORATIVE EMISSION SYSTEM
Revision: 2005 July 2005 FX
PBIB1523E
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![INFINITI FX35 2005 Service Manual EVAPORATIVE EMISSION SYSTEM EC-733
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Component InspectionABS007XU
EVAP CANISTER
Check EVAP canister as follows:
1. Block por INFINITI FX35 2005 Service Manual EVAPORATIVE EMISSION SYSTEM EC-733
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Component InspectionABS007XU
EVAP CANISTER
Check EVAP canister as follows:
1. Block por](/manual-img/42/57020/w960_57020-2125.png)
EVAPORATIVE EMISSION SYSTEM EC-733
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Component InspectionABS007XU
EVAP CANISTER
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 FULLER CAP)
1. Wipe clean valve housing.
2. Check valve opening pressure and vacuum.
3. If out of specification, 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-1074 .
FUEL TANK TEMPERATURE SENSOR
Refer to EC-1014 .
EVAP CANISTER VENT CONTROL VALVE
Refer to EC-1081 .
EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-1091 .
PBIB1044E
SEF445Y
Pressure:
15.3 - 20.0 kPa (0.156 - 0.204 kg/cm2 , 2.22
- 2.90 psi)
Va c u u m : − 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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EC-734
[VK45DE]
EVAPORATIVE EMISSION SYSTEM
Revision: 2005 July 2005 FX
EVAP SERVICE PORT
Positive pressure is delivered to the EVAP system through the EVAP
service port. If fuel vapor leakage in the EVAP system occurs, use a
leak detector to locate the leak.
Removal and InstallationABS007XV
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 LeakageABS007XW
CAUTION:
Do not use compressed air or a high pressure pump.
Do not exceed 4.12 kPa (0.042 kg/cm2 , 0.6 psi) of pressure in EVAP system.
NOTE:
Do not start engine.
Improper installation of EVAP service port adapter to the EVAP service port may cause a leak.
SEF462UA
PBIB1628E
PBIB1030E
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EVAPORATIVE EMISSION SYSTEM EC-735
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WITH CONSULT-II
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.
3. Turn ignition switch ON.
4. Select the “EVAP SYSTEM CLOSE” of “WORK SUPPORT MODE” with CONSULT-II.
5. Touch “START”. A bar graph (Pressure indicating display) will appear on the screen.
6. Apply positive pressure to the EVAP system until the 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-731, "
EVAP-
ORATIVE EMISSION LINE DRAWING" .
WITHOUT CONSULT-II
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.
PEF838U
PEF917U
SEF200U
SEF462UA