2008 INFINITI FX35 Service Manual

ECO mode service indicator check engine light radio antenna load capacity oil reset

Page 2185 of 3924

INFINITI FX35 2008 Service Manual
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
EC-945
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Component InspectionINFOID:0000000001326780
EVAP CANISTER P

Page 2186 of 3924

INFINITI FX35 2008 Service Manual
EC-946
< SERVICE INFORMATION >[VK45DE]
DTC P0447 EVAP CANISTER VENT CONTROL VALVE
DTC P0447 EVAP CANISTER VENT CONTROL VALVE
Component DescriptionINFOID:0000000001326782
The EVAP canister vent contro

EC-946
< SERVICE INFORMATION >[VK45DE]
DTC P0447 EVAP CANISTER VENT CONTROL VALVE
DTC P0447 EVAP CANISTER VENT CONTROL VALVE
Component DescriptionINFOID:0000000001326782
The EVAP canister vent control
valve is located on the EVAP canis-
ter and is used to seal the canister vent.
This solenoid valve responds to signals from the ECM. When the
ECM sends an ON signal, the coil in the solenoid valve is energized.
A plunger will then move to seal the canister vent. The ability to seal
the vent is necessary for the on board diagnosis of other evaporative
emission control system components.
This solenoid valve is used only for diagnosis, and usually remains
opened.
When the vent is closed, under normal purge conditions, the evapo-
rative emission control system is depressurized and allows “EVAP
Control System” diagnosis.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001326783
Specification data are reference values.
On Board Diagn osis LogicINFOID:0000000001326784
DTC Confirmation ProcedureINFOID:0000000001326785
NOTE:
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, conf irm battery voltage is more than 11V at idle.
1. Start engine and wait at least 8 seconds.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to EC-948, "
Diagnosis Procedure".
PBIB1263E
PBIB1522E
MONITOR ITEM CONDITION SPECIFICATION
VENT CONT/V Ignition switch: ON OFF
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0447
0447 EVAP canister vent con-
trol valve circuit open An improper voltage signal is sent to ECM
through EVAP canister vent control valve. Harness or connectors
(The valve circuit is open or shorted.)
EVAP canister vent control valve
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

Page 2187 of 3924

INFINITI FX35 2008 Service Manual
DTC P0447 EVAP CANISTER VENT CONTROL VALVE
EC-947
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Wiring DiagramINFOID:0000000001326786
Specification data are reference values
and a

Page 2188 of 3924

INFINITI FX35 2008 Service Manual
EC-948
< SERVICE INFORMATION >[VK45DE]
DTC P0447 EVAP CANISTER VENT CONTROL VALVE
Diagnosis Procedure
INFOID:0000000001326787
1.INSPECTION START
Do you have CONSULT-III?
Ye s o r N o
Ye s > > G O

Page 2189 of 3924

INFINITI FX35 2008 Service Manual
DTC P0447 EVAP CANISTER VENT CONTROL VALVE
EC-949
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Harness connectors B84, B216
IPDM E/R harness connector E7
10A fuse
Harness

Page 2190 of 3924

INFINITI FX35 2008 Service Manual
EC-950
< SERVICE INFORMATION >[VK45DE]
DTC P0447 EVAP CANISTER VENT CONTROL VALVE
2. Check portion
B of EVAP canister vent control valve for being
rusted.
If NG, replace EVAP canister vent control v

Page 2191 of 3924

INFINITI FX35 2008 Service Manual
DTC P0448 EVAP CANISTER VENT CONTROL VALVE
EC-951
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
DTC P0448 EVAP CANISTER
VENT CONTROL VALVE
Component DescriptionINFOID:000000000132

DTC P0448 EVAP CANISTER VENT CONTROL VALVE
EC-951
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
DTC P0448 EVAP CANISTER
VENT CONTROL VALVE
Component DescriptionINFOID:0000000001326789
The EVAP canister vent control valve is located on the EVAP canis-
ter and is used to seal the canister vent.
This solenoid valve responds to signals from the ECM. When the
ECM sends an ON signal, the coil in the solenoid valve is energized.
A plunger will then move to seal the canister vent. The ability to seal
the vent is necessary for the on board diagnosis of other evaporative
emission control system components.
This solenoid valve is used only for diagnosis, and usually remains
opened.
When the vent is closed, under normal purge conditions, the evapo-
rative emission control system is depressurized and allows EVAP
Control System diagnosis.
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000001326790
Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000001326791
DTC Confirmation ProcedureINFOID:0000000001326792
NOTE:
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-III
1. Turn ignition switch ON and wait at least 5 seconds.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and let it idle for at least 1 minute.
4. Repeat next procedures 3 times.
a. Increase the engine speed up to 3,000 to 3,500 rpm and keep it for 2 minutes and 50 seconds to 3 min-
utes.
Never exceed 3 minutes.
PBIB1263E
PBIB1522E
MONITOR ITEM CONDITION SPECIFICATION
VENT CONT/V Ignition switch: ON OFF
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0448
0448 EVAP canister vent con-
trol valve close EVAP canister vent control valve remains
closed under specified driving conditions. EVAP canister vent control valve
EVAP control system pressure sensor
and the circuit
Blocked rubber tube to EVAP canister vent control valve
EVAP canister is saturated with water
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

Page 2192 of 3924

INFINITI FX35 2008 Service Manual
EC-952
< SERVICE INFORMATION >[VK45DE]
DTC P0448 EVAP CANISTER VENT CONTROL VALVE
b. Fully released accelerator pedal and keep engine idle for about 5 seconds.
5. Check 1st trip DTC.
6. If 1st trip D

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