2008 NISSAN LATIO Service Repair Manual

start stop button fuel pump odometer instrument cluster keyless entry service

Page 1385 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P0420 THREE WAY CATALYST FUNCTION
EC-311
< SERVICE INFORMATION >
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EC
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OK >> GO TO 6.
NG >> Perform EC-523, "
Diagnosis Procedure".
6.CHECK FUNCTION OF IGNITION C

DTC P0420 THREE WAY CATALYST FUNCTION
EC-311
< SERVICE INFORMATION >
C
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EC
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OK >> GO TO 6.
NG >> Perform EC-523, "
Diagnosis Procedure".
6.CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible.
1. Turn ignition switch OFF.
2. Remove fuel pump (1) fuse in IPDM E/R (2) to release fuel pres-
sure.
NOTE:
Do not use CONSULT-II to release fuel pressure, or fuel pres-
sure applies again during the following procedure.
- : Vehicle front
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel
pressure.
5. Turn ignition switch OFF.
6. Remove all ignition coil harness connectors to avoid the electri-
cal discharge from the ignition coils.
7. Remove ignition coil and spark plug of the cylinder to be checked.
8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm
between the edge of the spark plug and grounded metal portion
as shown in the figure.
11. Crank engine for about 3 seconds, and check whether spark is
generated between the spark plug and the grounded metal por-
tion.
CAUTION:
• Do not approach to the spark plug and the ignition coil
within 50cm. Be careful not to get an electrical shock
while checking, because the electrical discharge voltage
becomes 20kV or more.
• It might cause to damage the ignition coil if the gap of more than 17 mm is taken.
NOTE:
When the gap is less than 13 mm, the spark might be generated even if the coil is malfunctioning.
OK or NG
OK >> GO TO 10.
NG >> GO TO 7.
7.CHECK FUNCTION OF IGNITION COIL-II
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a known-good spark plug.
3. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded metal portion.
OK or NG
OK >> GO TO 8.
NG >> Check ignition coil, power transistor and their circuits. Refer to EC-531
.
8.CHECK SPARK PLUGSpark should be generated.
PBIB2958E
PBIB2325E
Spark should be generated.

Page 1386 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-312
< SERVICE INFORMATION >
DTC P0420 THREE WAY CATALYST FUNCTION
Check the initial spark plug for fouling, etc.
OK or NG
OK >> Replace spark plug(s) with standard type one(s). For
spark plug type,

Page 1387 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P0441 EVAP CONTROL SYSTEM
EC-313
< SERVICE INFORMATION >
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DTC P0441 EVAP CONTROL SYSTEM
System DescriptionINFOID:0000000001702820
NOTE:
If DTC P0441 is displayed wit

Page 1388 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-314
< SERVICE INFORMATION >
DTC P0441 EVAP CONTROL SYSTEM
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 a

EC-314
< SERVICE INFORMATION >
DTC P0441 EVAP CONTROL SYSTEM
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 70 seconds.
4. Select “PURG FLOW P0441” of “EVAPORATIVE SYSTEM” in “DTC CONFIRMATION” mode with CON-
SULT-II.
5. Touch “START”.
If “COMPLETED” is displayed, go to step 7.
6. When the following conditions are met, “TESTING” will be displayed on the CONSULT-II screen. Maintain
the conditions continuously until “TESTING” changes to “COMPLETED”. (It will take at least 35 seconds.)
If TESTING is not changed for a long time, retry from step 2.
7. Make sure that “OK” is displayed after touching “SELF-DIAG RESULTS”. If “NG” is displayed, refer to EC-
315, "Diagnosis Procedure".
Overall Function CheckINFOID:0000000001702823
Use this procedure to check the overall monitoring function of the EVAP control system purge flow monitoring.
During this check, a 1st trip DTC might not be confirmed.
WITH GST
1. Lift up drive wheels.
2. Start engine and warm it up to normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and wait at least 70 seconds.
5. Set voltmeter probes to ECM terminals 42 (EVAP control system
pressure sensor signal) and ground.
6. Check EVAP control system pressure sensor value at idle speed
and note it.
7. Establish and maintain the following conditions for at least 1
minute.
8. Verify that EVAP control system pressure sensor value stays 0.1V less than the value at idle speed (mea-
sured at step 6) for at least 1 second.
9. If NG, go to EC-315, "
Diagnosis Procedure".
Shift lever Suitable position
VHCL SPEED SE 32 - 120 km/h (20 - 75 MPH)
ENG SPEED 500 - 3,800 rpm
B/FUEL SCHDL 1.0 - 10.0 msec
COOLAN TEMP/S More than 0°C
PBIB0826E
Air conditioner switch ON
Headlamp switch ON
Rear window defogger switch ON
Engine speed Approx. 3,000 rpm
Shift lever Any position other than P, N or R
PBIB3313E

Page 1389 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P0441 EVAP CONTROL SYSTEM
EC-315
< SERVICE INFORMATION >
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Diagnosis ProcedureINFOID:0000000001702824
1.CHECK EVAP CANISTER
1. Turn ignition switch OFF.
2. Check EVAP

Page 1390 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-316
< SERVICE INFORMATION >
DTC P0441 EVAP CONTROL SYSTEM
1. Disconnect purge hoses connected to EVAP service port A and
EVAP canister purge volume control solenoid valve B.
2. Blow air into each h

Page 1391 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P0441 EVAP CONTROL SYSTEM
EC-317
< SERVICE INFORMATION >
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OK >> GO TO 10.
NG >> Replace EVAP control system pressure sensor.
10.CHECK RUBBER TUBE FOR CLOGGING
1. Dis

Page 1392 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-318
< SERVICE INFORMATION >
DTC P0442 EVAP CONTROL SYSTEM
DTC P0442 EVAP CONTROL SYSTEM
On Board Diagnosis LogicINFOID:0000000001702825
This diagnosis detects leaks in the EVAP purge line using eng

EC-318
< SERVICE INFORMATION >
DTC P0442 EVAP CONTROL SYSTEM
DTC P0442 EVAP CONTROL SYSTEM
On Board Diagnosis LogicINFOID:0000000001702825
This diagnosis detects leaks in the EVAP purge line using engine intake manifold vacuum.
If pressure does not increase, the ECM will check for leaks in the line between the fuel tank and EVAP canister
purge volume control solenoid valve, under the following Vacuum test conditions.
The EVAP canister vent control valve is closed to shut the EVAP purge line off. The EVAP canister purge vol-
ume control solenoid valve will then be opened to depressurize the EVAP purge line using intake manifold
vacuum. After this occurs, the EVAP canister purge volume control solenoid valve will be closed.
CAUTION:
• Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the
MIL may come on.
• If the fuel filler cap is not tightened properly, the MIL may come on.
• Use only a genuine NISSAN rubber tube as a replacement.
DTC Confirmation ProcedureINFOID:0000000001702826
NOTE:
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0442
0442EVAP control system
small leak detected
(negative pressure)EVAP control system has a leak, EVAP
control system does not operate prop-
erly.• Incorrect fuel tank vacuum relief valve
• Incorrect fuel filler cap used
• Fuel filler cap remains open or fails to close.
• Foreign matter caught in fuel filler cap.
• Leak is in line between intake manifold and EVAP
canister purge volume control solenoid valve.
• Foreign matter caught in EVAP canister vent con-
trol valve.
• EVAP canister or fuel tank leaks
• EVAP purge line (pipe and rubber tube) leaks
• EVAP purge line rubber tube bent
• Loose or disconnected rubber tube
• EVAP canister vent control valve and the circuit
• EVAP canister purge volume control solenoid
valve and the circuit
• Fuel tank temperature sensor
• O-ring of EVAP canister vent control valve is
missing or damaged
• EVAP canister is saturated with water
• EVAP control system pressure sensor
• Fuel level sensor and the circuit
• Refueling EVAP vapor cut valve
• ORVR system leaks
PBIB1026E

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