2007 INFINITI FX35 Service Manual

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Page 1769 of 4366

INFINITI FX35 2007 Service Manual DTC P0442 EVAP CONTROL SYSTEM EC-393
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EC
Revision: 2006 July 2007 FX35/FX45
9. CHECK IF EVAP CANISTER SATURATED WITH WATER
1. Remove EVAP canister with EV

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INFINITI FX35 2007 Service Manual EC-394
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DTC P0442 EVAP CONTROL SYSTEM
Revision: 2006 July 2007 FX35/FX45
13. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
Without CONSULT-II
1. Start engine and warm

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INFINITI FX35 2007 Service Manual DTC P0442 EVAP CONTROL SYSTEM EC-395
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Revision: 2006 July 2007 FX35/FX45
20. CHECK EVAP/ORVR LINE
Check EVAP/ORVR line between EVAP canister and fuel t

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INFINITI FX35 2007 Service Manual EC-396
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DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2006 July 2007 FX35/FX45
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
PFP:14920
DescriptionNBS003WH

EC-396
[VQ35DE]
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2006 July 2007 FX35/FX45
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
PFP:14920
DescriptionNBS003WH
SYSTEM DESCRIPTION
*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.
This system controls flow rate of fuel vapor from the EVAP canister. The opening of the vapor by-pass pas-
sage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP
canister purge volume control solenoid valve repeats ON/OFF operation according to the signal sent from the
ECM. The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is
determined by considering various engine conditions. When the engine is operating, the flow rate of fuel vapor
from the EVAP canister is regulated as the air flow changes.
COMPONENT DESCRIPTION
The EVAP canister purge volume control solenoid valve uses a ON/
OFF duty to control the flow rate of fuel vapor from the EVAP canis-
ter. The EVAP canister purge volume control solenoid valve is
moved by ON/OFF pulses from the ECM. The longer the ON pulse,
the greater the amount of fuel vapor that will flow through the valve.
CONSULT-II Reference Value in Data Monitor ModeNBS003WI
Specification data are reference values.
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed*
1
EVAP canister
purge flow control EVAP canister purge vol-
ume control solenoid valve
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Battery Battery voltage*
1
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
(Mixture ratio feedback signal)
Fuel tank temperature sensor Fuel temperature in fuel tank
Wheel sensor Vehicle speed*
2
SEF337U
MONITOR ITEM CONDITION SPECIFICATION
PURG VOL C/V
Engine: After warming up
Selector lever: P or N
Air conditioner switch: OFF
No load Idle
(Accelerator pedal is not depressed
even slightly, after engine starting) 0%
2,000 rpm —

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INFINITI FX35 2007 Service Manual DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE EC-397
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Revision: 2006 July 2007 FX35/FX45
On Board Diagnosis LogicNBS003WJ
DTC Confirmation

DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE EC-397
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Revision: 2006 July 2007 FX35/FX45
On Board Diagnosis LogicNBS003WJ
DTC Confirmation ProcedureNBS003WK
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Always perform test at a temperature of 5 °C (41 °F) or more.
WITH CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Select “PURG VOL CN/V P1444” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode with CONSULT-II.
5. Touch “START”.
6. Start engine and let it idle until “TESTING” on CONSULT-II changes to “COMPLETED”. (It will take approximately 10 seconds.)
If “TESTING” is not displayed after 5 minutes, retry from step 2.
7. Make sure that “OK” is displayed after touching “SELF-DIAG RESULTS”. If “NG” is displayed, refer to EC-
400, "Diagnostic Procedure" .
WITH GST
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and let it idle for at least 20 seconds.
4. Select “Service $07” with GST.
5. If 1st trip DTC is detected, go to EC-400, "
Diagnostic Procedure" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0443
0443 EVAP canister purge
volume control solenoid
valve The canister purge flow is detected during the
specified driving conditions, even when EVAP
canister purge volume control solenoid valve is
completely closed.
EVAP control system pressure sensor
EVAP canister purge volume control
solenoid valve
(EVAP canister purge volume control
solenoid valve is stuck open.)
EVAP canister vent control valve
EVAP canister
Hoses
(Hoses are connected incorrectly or
clogged.)
PBIB0839E

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INFINITI FX35 2007 Service Manual EC-398
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DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2006 July 2007 FX35/FX45
Wiring DiagramNBS003WL
TBWM1390E

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INFINITI FX35 2007 Service Manual DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE EC-399
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Revision: 2006 July 2007 FX35/FX45
Specification data are reference values and are m

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INFINITI FX35 2007 Service Manual EC-400
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DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Revision: 2006 July 2007 FX35/FX45
Diagnostic ProcedureNBS003WM
1. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE P

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