2009 NISSAN LATIO Service Repair Manual

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Page 2161 of 4331

NISSAN LATIO 2009 Service Repair Manual EC
NP
O
On Board Diagnosis Logic
INFOID:0000000004537294
DTC Confirmation Procedure INFOID:0000000004537295
NOTE:
If DTC Confirmation Procedure has been previously conduc ted, always turn ig

Page 2162 of 4331

NISSAN LATIO 2009 Service Repair Manual EC-806< SERVICE INFOMATION >
[MR TYPE 1]
DTC P0443 EVAP CANISTER PURGE VO
LUME CONTROL SOLENOID VALVE
Wiring Diagram INFOID:0000000004537296
Specification data are reference values and are measured be

Page 2163 of 4331

NISSAN LATIO 2009 Service Repair Manual DTC P0443 EVAP CANISTE
R PURGE VOLUME CONTROL SOLENOID VALVE
EC-807
< SERVICE INFOMATION >
[MR TYPE 1] C
D E
F
G H
I
J
K L
M A EC
NP
O
Do not use ECM ground terminals wh
en measuring input/output volt

Page 2164 of 4331

NISSAN LATIO 2009 Service Repair Manual EC-808< SERVICE INFOMATION >
[MR TYPE 1]
DTC P0443 EVAP CANISTER PURGE VO
LUME CONTROL SOLENOID VALVE
4. Check voltage between EVAP canister purge volume control solenoid valve terminal 1 a

Page 2165 of 4331

NISSAN LATIO 2009 Service Repair Manual DTC P0443 EVAP CANISTE
R PURGE VOLUME CONTROL SOLENOID VALVE
EC-809
< SERVICE INFOMATION >
[MR TYPE 1] C
D E
F
G H
I
J
K L
M A EC
NP
O
4. Perform “PURG VOL CONT/V” in
“ACTIVE TEST” mode with

Page 2166 of 4331

NISSAN LATIO 2009 Service Repair Manual EC-810< SERVICE INFOMATION >
[MR TYPE 1]
DTC P0443 EVAP CANISTER PURGE VO
LUME CONTROL SOLENOID VALVE
>> INSPECTION END
Component Inspection INFOID:0000000004537298
EVAP CANISTER PURGE VOLUME CONTROL

Page 2167 of 4331

NISSAN LATIO 2009 Service Repair Manual DTC P0444, P0445 EVAP CANISTER P
URGE VOLUME CONTROL SOLENOID
VALVE
EC-811
< SERVICE INFOMATION >
[MR TYPE 1] C
D E
F
G H
I
J
K L
M A EC
NP
O
DTC P0444, P0445 EVAP CANISTER
PURGE VOLUME CONTROL SOLE

DTC P0444, P0445 EVAP CANISTER P
URGE VOLUME CONTROL SOLENOID
VALVE
EC-811
< SERVICE INFOMATION >
[MR TYPE 1] C
D E
F
G H
I
J
K L
M A EC
NP
O
DTC P0444, P0445 EVAP CANISTER
PURGE VOLUME CONTROL SOLE-
NOID VALVE
Description INFOID:0000000004537300
SYSTEM DESCRIPTION
*1: The ECM determines the start signal status by the signal 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 solenoi d valve changes to control the flow rate. The EVAP
canister purge volume control solenoid valve repeats ON/O FF operation according to the signal sent from the
ECM. The opening of the valve varies for optimum engi ne control. The optimum value stored in the ECM is
determined by considering various engine conditions. When t he 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-III Reference Val ue in Data Monitor Mode INFOID:0000000004537301
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 volume
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
ABS actuator and electric unit (control unit)
Vehicle speed*2
Combination meter PBIA9215J
MONITOR ITEM CONDITION SPECIFICATION
PURG VOL C/V • Engine: After warming up
• Shift lever: N (A/T, CVT), Neutral (M/T)
• Air conditioner switch: OFF
• No load Idle
(Accelerator pedal is not depressed
even slightly, after engine starting) 0%
2,000 rpm 0 - 50%

Page 2168 of 4331

NISSAN LATIO 2009 Service Repair Manual Diagnosis Procedure " .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0444
0444 EVAP canister purge volume
control solenoid valve circuit
open An excessively low voltage sig

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