2011 NISSAN LATIO diagram

EC-832
< SERVICE INFORMATION >[MR18DE]
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
Wiring Diagram
INFOID:0000000006341997
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-III.
CAUTION:
ABBWA0361GB
Revision: May 2010 2011 Versa

EC-834
< SERVICE INFORMATION >[MR18DE]
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME 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 CIRCUIT
FOR 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 (With CONSULT-III)>>GO TO 4.
OK (Without CONSULT-III)>>GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-III
1. Reconnect all harness connectors disconnected.
2. Start engine.
3. 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 6.
NG >> GO TO 5.
5.CHECK EVAP CANISTER PURGE VO LUME CONTROL SOLENOID VALVE
Refer to EC-829, "
Component Inspection".
OK or NG
OK >> GO TO 6.
NG >> Replace EVAP canister purge volume control solenoid valve.
6.CHECK INTERMITTENT INCIDENT
Refer to EC-632
.
>> INSPECTION END
Component InspectionINFOID:0000000006341999
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Voltage: Battery voltage
SEF206W
Continuity should exist.
Revision: May 2010 2011 Versa

DTC P0447 EVAP CANISTER VENT CONTROL VALVE
EC-837
< SERVICE INFORMATION > [MR18DE]
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EC
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Wiring DiagramINFOID:0000000006342005
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
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.
AABWA0224GB
Revision: May 2010 2011 Versa

DTC P0447 EVAP CANISTER VENT CONTROL VALVE
EC-839
< SERVICE INFORMATION > [MR18DE]
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EC
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4. Check voltage between EVAP canister vent control valve termi-
nal 1 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• Harness connectors E7, M69
• Harness connectors M12, B101
• Harness for open or short between EVAP cani ster vent control valve and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK EVAP CANISTER VENT CONTROL VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 28 and EVAP canister vent control 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 7.
NG >> GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• Harness connectors E7, M69
• Harness connectors M13, B102
• Harness for open or short between EVAP c anister vent control valve and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.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 8.
NG >> Clean the rubber tube using an air blower.
8.CHECK DRAIN FILTER
Refer to EC-814, "
Component Inspection".
OK or NG
OK >> GO TO 9.
NG >> Replace drain filter.
9.CHECK EVAP CANISTER VENT CONTROL VALVE
Refer to EC-840, "
Component Inspection".
Voltage: Battery voltage
PBIB0080E
Continuity should exist.
Revision: May 2010
2011 Versa

EC-844
< SERVICE INFORMATION >[MR18DE]
DTC P0448 EVAP CANISTER VENT CONTROL VALVE
Wiring Diagram
INFOID:0000000006342012
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doi ng so may result in dam-
age to the ECM's transistor. Use a ground ot her than ECM terminals, such as the ground.
AABWA0224GB
Revision: May 2010 2011 Versa

DTC P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-849
< SERVICE INFORMATION > [MR18DE]
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Do not depress accelerator pedal even slightly.
3. Check 1st trip DTC.
4. If 1st trip DTC is detected, go to EC-849, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006342019
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-638, "
Ground Inspection".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
2.CHECK EVAP CONTROL SYS TEM PRESSURE SENSOR CONNECTOR FOR WATER
1. Disconnect EVAP control system pressure sensor (1) harness
connector.
- EVAP canister (2)
- EVAP canister vent control valve (3)
2. Check sensor harness connector for water.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness connector.
3.CHECK COMPONENTS POWER SUPPLY
Check harness for short to power and short to ground, between the following terminals.
OK or NG
OK >> GO TO 4.
NG >> Repair short to ground or short to power in harness or connectors.
4.CHECK COMPONENTS
Check the following.
: Vehicle front
1. Body ground E24 2. Engine ground F93. engine ground F16
4. Body ground E15
BBIA0698E
Water should not exist.
BBIA0693E
ECM terminal Sensor terminalReference Wiring Diagram
74 Refrigerant pressure sensor terminal 3 EC-1029, "
Wiring Diagram"
75Crankshaft position sensor (POS) terminal 1 EC-794, "Wiring Diagram"
76EVAP control system pressure sensor terminal 3 EC-853, "Wiring Diagram"
102APP sensor terminal 5 EC-972, "Wiring Diagram"
Revision: May 2010 2011 Versa

EC-850
< SERVICE INFORMATION >[MR18DE]
DTC P0451 EVAP CONTROL
SYSTEM PRESSURE SENSOR
• Refrigerant pressure sensor (Refer to MTC-38, "Magnet Clutch Circuit (If Equipped)".)
• Crankshaft position sensor (POS) (Refer to EC-798, "
Component Inspection".)
OK or NG
OK >> GO TO 5.
NG >> Replace malfunctioning components.
5.CHECK APP SENSOR
Refer to EC-969, "
Component Inspection".
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Perform EC-580, "
Accelerator Pedal Released Position Learning".
3. Perform EC-580, "
Throttle Valve Closed Position Learning".
4. Perform EC-580, "
Idle Air Volume Learning".
>> INSPECTION END
7.CHECK EVAP CONTROL SY STEM PRESSURE SENSOR
Refer to EC-850, "
Component Inspection".
OK or NG
OK >> GO TO 8.
NG >> Replace EVAP control system pressure sensor.
8.CHECK INTERMITTENT INCIDENT
Refer to EC-632
.
For wiring diagram, refer to EC-853, "
Wiring Diagram".
>> INSPECTION END
Component InspectionINFOID:0000000006342020
EVAP CONTROL SYSTEM PRESSURE SENSOR
1. Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister.
Always replace O-ring with a new one.
2. Install a vacuum pump to EVAP control system pressure sensor.
3. Turn ignition switch ON and check output voltage between ECM terminal 42 (EVAP control system pressure sensor signal) and
ground under the following conditions.
CAUTION:
• Always calibrate the vacuum pump gauge when using it.
• Do not apply below -93.3 kP a (-700 mmHg, -27.56 inHg) or
pressure over 101.3 kPa (760 mmHg, 29.92 inHg).
4. If NG, replace EVAP control system pressure sensor.
Applied vacuum kPa (mmHg, inHg) Voltage (V)
Not applied 1.8 - 4.8
-26.7 (-200, -7.87) 2.1 to 2.5 V lower than above value
PBIB3314E
Revision: May 2010 2011 Versa

DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-853
< SERVICE INFORMATION > [MR18DE]
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Wiring DiagramINFOID:0000000006342025
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
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.
AABWA0225GB
Revision: May 2010 2011 Versa