2009 NISSAN LATIO service

EC
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2. Retighten until reteaching sound is heard. OK >> GO TO 5.
NG >> GO TO 4. Component Inspection " .
OK or NG OK >> GO TO 5.
NG >> Replace fuel filler cap with a genuine one. Descrip-
tion " .
• EVAP canister purge volume control solenoid valve (1)
• : Vehicle front
NOTE:
Improper installation of the EV AP service port adapter to the
EVAP service port may cause leaking.
With CONSULT-III>>GO TO 6.
Without CONSULT-III>>GO TO 7.

EC-800< SERVICE INFOMATION >
[MR TYPE 1]
DTC P0442 EVAP CONTROL SYSTEM
4. Using EVAP leak detector, locate the EVAP leak. For the leak detector, refer to the instruction manual for more details.
Refer to EC-527, " Description " .
OK or NG OK >> GO TO 8.
NG >> Repair or replace. 7.
CHECK FOR EVAP LEAK
Without CONSULT-III
1. Turn ignition switch OFF.
2. Apply 12 volts DC to EVAP canister vent control valve. The valve will close. (Continue to appl y 12 volts until the end of test.)
- EVAP control system pressure sensor (1)
- EVAP canister (2)
- EVAP canister vent control valve (3)
3. Pressurize the EVAP line using pressure pump with 1.3 to 2.7
kPa (10 to 20 mmHg, 0.39 to 0.79 inHg), then remove pump and
EVAP service port adapter.
CAUTION:
• Never 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 the system.
4. Using EVAP leak detector, locate the EVAP leak. For the leak detector, refer to the instruction manual for more details. Refer
to EC-527, " Description " .
OK or NG OK >> GO TO 8.
NG >> Repair or replace. 8.
CHECK EVAP CANISTER VENT CONTROL VALVE
Check the following,
• EVAP canister vent control valve is installed properly. Refer to EC-531, " Removal and Installation " .
• EVAP canister vent control valve. Refer to EC-821, " Component Inspection " .
OK or NG OK >> GO TO 9.
NG >> Repair or replace EVAP cani ster vent control valve and O-ring.9.
CHECK IF EVAP CANISTER SATURATED WITH WATER
1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached. SEF200U
BBIA0693E
SEF200U

DTC P0442 EVAP CONTROL SYSTEM
EC-801
< SERVICE INFOMATION >
[MR TYPE 1] C
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2. Does water drain from the EVAP canister?
Yes or No Yes >> GO TO 10.
No (With CONSULT-III)>>GO TO 12.
No (Without CONSULT-III)>>GO TO 13. 10.
CHECK EVAP CANISTER
Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sen-
sorattached.
The weight should be less than 1.9 kg (4.2 lb).
OK or NG OK (With CONSULT-III)>>GO TO 12.
OK (Without CONSULT-III)>>GO TO 13.
NG >> GO TO 11. 11.
DETECT MALFUNCTIONING PART
Check the following.
• EVAP canister for damage
• EVAP hose connected to EVAP canister for clogging or poor connection
>> Repair hose or replace EVAP canister. 12.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-III
1. Disconnect vacuum hose to EVAP canister purge volu me control solenoid valve at EVAP service port.
2. Start engine.
3. Perform “PURG VOL CONT/V ” in “ACTIVE TEST” mode.
4. Touch “Qu” on CONSULT-III screen to increase “PURG VOL CONT/V” opening to 100%.
5. Check vacuum hose for vacuum.
OK or NG OK >> GO TO 15.
NG >> GO TO 14. 13.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
Without CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Stop engine.
3. Disconnect vacuum hose to EVAP canister purge volu me control solenoid valve at EVAP service port.
4. Start engine and let it idle for at least 80 seconds.
5. Check vacuum hose for vacuum when revving engine up to 2,000 rpm.
OK or NG OK >> GO TO 16.
NG >> GO TO 14. 14.
CHECK VACUUM HOSE
Check vacuum hoses for clogging or disconnection. Refer to EC-594, " Vacuum Hose Drawing " .
OK or NG PBIB1213E
Vacuum should exist.
Vacuum should exist.

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On Board Diagnosis Logic
INFOID:0000000004537294
DTC Confirmation Procedure INFOID:0000000004537295
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:
Always perform test at a temperature of 5 °C (41 °F) or more.
WITH CONSULT-III
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 “EVAPORA TIVE SYSTEM” in “DTC WORK SUPPORT” mode with
CONSULT-III.
5. Touch “START”.
6. Start engine and let it idle until “TESTING” on CO NSULT-III changes to “COMPLETED”. (It will take
approximately 10 seconds.)
If “TESTING” is not displayed afte r 5 minutes, retry from step 2.
7. Make sure that “OK” is displayed after touching “S ELF-DIAG RESULTS”. If “NG” is displayed, refer to EC-807, " Diagnosis 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-807, " Diagnosis 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 so-
lenoid valve
(EVAP canister purge volume control so-
lenoid valve is stuck open.)
• EVAP canister vent control valve
• EVAP canister
• Hoses
(Hoses are connected incorrectly or
clogged.)

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 between each terminal and ground.
Pulse signal is measured by CONSULT-III.
CAUTION: BBWA3000E

DTC P0443 EVAP CANISTE
R PURGE VOLUME CONTROL SOLENOID VALVE
EC-807
< SERVICE INFOMATION >
[MR TYPE 1] C
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Do not use ECM ground terminals wh
en measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground ot her than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnosis Procedure INFOID:00000000045372971.
CHECK EVAP CANISTER PURG E VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect EVAP canister purge volume control solenoid valve (1) harness connector.
- EVAP service port (2)
- : Vehicle front
3. Turn ignition switch ON. TERMI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
9 P EVAP canister purge volume
control solenoid valve [Engine is running]
• Idle speed
• Accelerator pedal: Not depressed even slightly, after engine starting. BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
• Engine speed: About 2,000 rpm (More
than 100 seconds after starting engine) Approximately 10V
32 P ECM relay
(Self shut-off) [Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition switch OFF 0 - 1.0V
[Ignition switch: OFF]
• More than a few seconds after turning ig- nition switch OFF BATTERY VOLTAGE
(11 - 14V)
105 G Power supply for ECM [Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V) PBIB0050E
PBIB0520E
BBIA0703E

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 and ground with CONSULT-III or
tester.
OK or NG OK >> GO TO 3.
NG >> GO TO 2. 2.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• Harness for open or short between EVAP canister purge volume control solenoid valve and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
3. CHECK EVAP CANISTER PURGE VOLUME CONTRO L SOLENOID VALVE OUTPUT SIGNAL CIRCUITFOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 9 and EVAP canister purge volume control solenoid
valve terminal 2. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. 4.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
1. Disconnect EVAP control system pressure sensor harness con- nector.
- EVAP control system pressure sensor (1)
- EVAP canister (2)
- EVAP canister vent control valve (3)
2. Check connectors for water.
OK or NG OK >> GO TO 5.
NG >> Replace EVAP control system pressure sensor. 5.
CHECK EVAP CONTROL SY STEM PRESSURE SENSOR
Refer to EC-838, " Component Inspection " .
OK or NG OK (With CONSULT-III)>>GO TO 6.
OK (Without CONSULT-III)>>GO TO 7.
NG >> Replace EVAP control system pressure sensor. 6.
CHECK EVAP CANISTER PURGE VO LUME CONTROL SOLENOID VALVE
With CONSULT-III
1. Turn ignition switch OFF.
2. Reconnect harness connectors disconnected.
3. Start engine. Voltage: Battery voltage
PBIB0080E
Continuity should exist.
Water should not exist. BBIA0693E

DTC P0443 EVAP CANISTE
R PURGE VOLUME CONTROL SOLENOID VALVE
EC-809
< SERVICE INFOMATION >
[MR TYPE 1] C
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4. Perform “PURG VOL CONT/V” in
“ACTIVE TEST” mode with CONSULT- III. Check that engine speed var-
ies according to the valve opening.
OK or NG OK >> GO TO 8.
NG >> GO TO 7. 7.
CHECK EVAP CANISTER PURGE VO LUME CONTROL SOLENOID VALVE
Refer to EC-810, " Component Inspection " .
OK or NG OK >> GO TO 8.
NG >> Replace EVAP canister purge volume control solenoid valve. 8.
CHECK RUBBER TUBE FOR CLOGGING
1. Disconnect rubber tube connected to EV AP canister vent control valve.
2. Check the rubber tube for clogging.
OK or NG OK >> GO TO 9.
NG >> Clean the rubber tube using an air blower. 9.
CHECK EVAP CANISTER VENT CONTROL VALVE
Refer to EC-821, " Component Inspection " .
OK or NG OK >> GO TO 10.
NG >> Replace EVAP canister vent control valve. 10.
CHECK IF EVAP CANISTER SATURATED WITH WATER
1. Remove EVAP canister with EVAP c anister vent control valve attached.
2. Does water drain from the EVAP canister?
YES or NO YES >> GO TO 11.
NO >> GO TO 13. 11.
CHECK EVAP CANISTER
Weigh the EVAP canister with the EV AP canister vent control valve and EVAP control system pressure sensor
attached.
OK or NG OK >> GO TO 13.
NG >> GO TO 12. 12.
DETECT MALFUNCTIONING PART
Check the following.
• EVAP canister for damage
• EVAP hose between EVAP canister and vehi cle frame for clogging or poor connection
>> Repair hose or replace EVAP canister. 13.
CHECK INTERMITTENT INCIDENT
Refer to EC-626 . PBIB1213E
The weight should be less than 1.9 kg (4.2 lb).