2010 NISSAN LATIO air filter

EC-6
Wiring Diagram ......................................................402
Diagnosis Procedure .............................................402
Component Inspection ...........................................404
Special Repair Requirement ..................................404
P2138 APP SENSOR ..................................... .405
Description ........................................................... ..405
DTC Logic ..............................................................405
Wiring Diagram ......................................................406
Diagnosis Procedure .............................................406
Component Inspection ...........................................409
Special Repair Requirement ..................................409
P2A00 A/F SENSOR 1 ................................... .410
Description ........................................................... ..410
DTC Logic ..............................................................410
Wiring Diagram ......................................................411
Diagnosis Procedure .............................................412
COOLING FAN ................................................415
Description ........................................................... ..415
Component Function Check ..................................415
Wiring Diagram ......................................................416
Diagnosis Procedure .............................................417
Component Inspection ...........................................419
ELECTRICAL LOAD SIGNAL .........................421
Description ........................................................... ..421
Component Function Check ..................................421
Diagnosis Procedure .............................................421
FUEL INJECTOR .............................................423
Description ........................................................... ..423
Component Function Check ..................................423
Wiring Diagram ......................................................424
Diagnosis Procedure .............................................424
Component Inspection ...........................................425
FUEL PUMP .....................................................427
Description ........................................................... ..427
Component Function Check ..................................427
Wiring Diagram ......................................................428
Diagnosis Procedure .............................................428
Component Inspection ...........................................430
IGNITION SIGNAL ...........................................432
Description ........................................................... ..432
Component Function Check ..................................432
Wiring Diagram ......................................................433
Diagnosis Procedure .............................................434
Component Inspection (Ignition Coil with Power
Transistor) .............................................................
437
Component Inspection (Condenser-2) ..................438
MALFUNCTION INDICATOR LAMP ...............439
Description ........................................................... ..439
Component Function Check ..................................439
Wiring Diagram ......................................................440
Diagnosis Procedure .............................................441
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) .....................................................
443
Description ........................................................... .443
Component Function Check .................................443
Diagnosis Procedure .............................................443
Component Inspection (Refueling EVAP vapor cut
valve) ................................................................... .
446
Component Inspection (Drain filter) ......................448
POSITIVE CRANKCASE VENTILATION .........449
Description ........................................................... .449
Component Inspection ..........................................449
REFRIGERANT PRESSURE SENSOR ...........450
Description ........................................................... .450
Component Function Check .................................450
Wiring Diagram .....................................................451
Diagnosis Procedure .............................................451
ECU DIAGNOSIS ......................................454
ECM ................................................................ ..454
Reference Value .................................................. .454
Wiring Diagram — ENGINE CONTROL SYSTEM
— ..........................................................................
464
Fail Safe ...............................................................465
DTC Inspection Priority Chart .............................467
DTC Index ............................................................468
How to Set SRT Code .......................................471
How to Erase Permanent DTC .............................473
Test Value and Test Limit .....................................477
SYMPTOM DIAGNOSIS ...........................484
ENGINE CONTROL SYSTEM SYMPTOMS .. ..484
Symptom Table .................................................... .484
NORMAL OPERATING CONDITION ...............488
Description ........................................................... .488
PRECAUTION ...........................................489
PRECAUTIONS .............................................. ..489
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. .
489
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ................................
489
Precaution for Procedure without Cowl Top Cover .490
On Board Diagnosis (OBD) System of Engine and
A/T ........................................................................
490
General Precautions .............................................490
PREPARATION .........................................494
PREPARATION .............................................. ..494
Special Service Tools .......................................... .494
Commercial Service Tools ....................................494
ON-VEHICLE MAINTENANCE .................496
Revision: January 20102010 Versa

TROUBLE DIAGNOSIS - SPECIFICATION VALUEEC-109
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NOTE:
Check “A/F ALPHA-B1” for approximately 1 minute because
it may fluctuate. It is NG if the indication is
out of the SP value even a little.
Is the measurement value within the SP value?
YES >> GO TO 17.
NO-1 >> Less than the SP value: GO TO 2.
NO-2 >> More than the SP value: GO TO 3.
2.CHECK “B/FUEL SCHDL”
Select “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” m ode, and make sure that the indication is within the
SP value.
Is the measurement value within the SP value?
YES >> GO TO 4.
NO >> More than the SP value: GO TO 19.
3.CHECK “B/FUEL SCHDL”
Select “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” m ode, and make sure that the indication is within the
SP value.
Is the measurement value within the SP value?
YES >> GO TO 6.
NO-1 >> More than the SP value: GO TO 6.
NO-2 >> Less than the SP value: GO TO 25.
4.CHECK “A/F ALPHA-B1”
1. Stop the engine.
2. Disconnect PCV hose, and then plug it.
3. Start engine.
4. Select “A/F ALPHA-B1” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within
the SP value.
Is the measurement value within the SP value?
YES >> GO TO 5.
NO >> GO TO 6.
5.CHANGE ENGINE OIL
1. Stop the engine.
2. Change engine oil. NOTE:
This symptom may occur when a large amount of gas oline is mixed with engine oil because of driving
conditions (such as when engine oil temperature does not rise enough since a journey distance is too
short during winter). The symptom will not be detect ed after changing engine oil or changing driving con-
dition.
>>INSPECTION END
6.CHECK FUEL PRESSURE
Check fuel pressure. (Refer to EC-496, "
Inspection".)
Is the inspection result normal?
YES >> GO TO 9.
NO-1 >> Fuel pressure is too high: Replace “fuel filter and fuel pump assembly” and then GO TO 8.
NO-2 >> Fuel pressure is too low: GO TO 7.
7.DETECT MALFUNCTIONING PART
Check fuel hoses and fuel tubes for clogging
Is the inspection result normal?
YES >> Replace “fuel filter and fuel pump assembly” and then GO TO 8.
NO >> Repair or replace and then GO TO 8.
8.CHECK “A/F ALPHA-B1”
Revision: January 20102010 Versa

P0171 FUEL INJECTION SYSTEM FUNCTIONEC-227
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NO >> GO TO 5.
5. DETECT MALFUNCTIONING PART
Check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?
YES >> Replace “fuel filter and fuel pump assembly”.
NO >> Repair or replace
6.CHECK MASS AIR FLOW SENSOR
With CONSULT-III
1. Install all removed parts.
2. Check “MASS AIR FLOW” in “DATA MONITOR” mode with CONSULT-III.
3. For specification, refer to EC-502, "
Mass Air Flow Sensor".
With GST
1. Install all removed parts.
2. Check mass air flow sensor signal in Service $01 with GST.
3. For specification, refer to EC-502, "
Mass Air Flow Sensor".
Is the measurement value within the specification?
YES >> GO TO 7.
NO >> Check connectors for rusted terminals or loose connections in the mass air flow sensor circuit or
grounds. Refer to EC-142, "
DTC Logic".
7.CHECK FUNCTION OF FUEL INJECTOR
With CONSULT-III
1. Start engine.
2. Perform “POWER BALANCE” in “A CTIVE TEST” mode with CONSULT-III.
3. Make sure that each circuit produces a momentary engine speed drop.
Without CONSULT-III
1. Let engine idle.
2. Listen to each fuel injector operating sound.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Perform trouble diagnosis for FUEL INJECTOR, refer to EC-423, "
Component Function Check".
8.CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Confirm that the engine is cooled down and t here are no fire hazards near the vehicle.
3. Disconnect all fuel injector harness connectors.
4. Remove fuel tube assembly. Refer to EM-34, "
Removal and Installation".
Keep fuel hose and all fuel injectors connected to fuel tube.
5. Disconnect all ignition coil harness connectors.
6. Prepare pans or saucers under each fuel injector.
Clicking noise should be heard.
PBIB3332E
Revision: January 20102010 Versa

P0172 FUEL INJECTION SYSTEM FUNCTIONEC-233
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5. DETECT MALFUNCTIONING PART
Check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?
YES >> Replace “fuel filter and fuel pump assembly”.
NO >> Repair or replace
6.CHECK MASS AIR FLOW SENSOR
With CONSULT-III
1. Install all removed parts.
2. Check “MASS AIR FLOW” in “DATA MONITOR” mode with CONSULT-III.
3. For specification, refer to EC-502, "
Mass Air Flow Sensor".
With GST
1. Install all removed parts.
2. Check mass air flow sensor signal in “Service $01” with GST.
3. For specification, refer to EC-502, "
Mass Air Flow Sensor".
Is the measurement value within the specification?
YES >> GO TO 7.
NO >> Check connectors for rusted terminals or loose connections in the mass air flow sensor circuit or
grounds. Refer to EC-142, "
DTC Logic".
7.CHECK FUNCTION OF FUEL INJECTOR
With CONSULT-III
1. Start engine.
2. Perform “POWER BALANCE” in “A CTIVE TEST” mode with CONSULT-III.
3. Make sure that each circuit produces a momentary engine speed drop.
Without CONSULT-III
1. Let engine idle.
2. Listen to each fuel injector operating sound.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Perform trouble diagnosis for FUEL INJECTOR, refer to EC-423, "
Component Function Check".
8.CHECK FUEL INJECTOR
1. Remove fuel injector assembly. Refer to EM-34, "
Removal and Installation".
Keep fuel hose and all fuel injectors connected to fuel tube.
2. Confirm that the engine is cooled down and t here are no fire hazards near the vehicle.
3. Disconnect all fuel injector harness connectors.
4. Disconnect all ignition coil harness connectors.
5. Prepare pans or saucers under each fuel injectors.
6. Crank engine for about 3 seconds. Make sure fuel does not drip from fuel injector.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Replace the fuel injectors from which fuel is dripping. Always replace O-ring with new one.
9.CHECK INTERMITTENT INCIDENT
Refer to EC-114, "
Diagnosis Procedure".
>> INSPECTION END
Clicking noise should be heard.
PBIB3332E
Revision: January 20102010 Versa

EC-250
< COMPONENT DIAGNOSIS >[HR16DE]
P0300, P0301,
P0302, P0303, P0304 MISFIRE
7.CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
Is the inspection result normal?
YES >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-112, "
Spark Plug".
NO >> Repair or clean spark plug. Then GO TO 8.
8.CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and the grounded portion.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-112, "
Spark
Plug".
9.CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-23, "
Inspection".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
10.CHECK FUEL PRESSURE
1. Install all removed parts.
2. Check fuel pressure. Refer to EC-496, "
Inspection".
Is the inspection result normal?
YES >> GO TO 12.
NO >> GO TO 11.
11 .DETECT MALFUNCTIONING PART
Check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?
YES >> Replace “fuel filter and fuel pump assembly”.
NO >> Repair or replace.
12.CHECK IGNITION TIMING
Check the following items. Refer to EC-20, "
BASIC INSPECTION : Special Repair Requirement".
For specification, refer to EC-502, "
Ignition Timing".
Is the inspection result normal?
YES >> GO TO 13.
NO >> Follow the EC-20, "
BASIC INSPECTION : Special Repair Requirement".
13.CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect corresponding A/F sensor 1 harness connector.
3. Disconnect ECM harness connector.
4. Check the continuity between A/F sensor 1 harness connector and ECM harness connector.
SEF156I
Spark should be generated.
Revision: January 20102010 Versa

EC-272
< COMPONENT DIAGNOSIS >[HR16DE]
P0441 EVAP CONTROL SYSTEM
P0441 EVAP CONTROL SYSTEM
DTC LogicINFOID:0000000005398437
DTC DETECTION LOGIC
NOTE:
If DTC P0441 is displayed with other DTC such
as P2122, P2123, P2127, P2128 or P2138, first perform
trouble diagnosis for other DTC.
In this evaporative emission (EVAP) control system, purge flow occurs during non-closed throttle conditions.
Purge volume is related to air intake volume. Under normal purge conditions (non-closed throttle), the EVAP
canister purge volume control solenoid valve is open to admit purge flow. Purge flow exposes the EVAP con-
trol system pressure sensor to intake manifold vacuum.
Under normal conditions (non-closed throttle), sensor output voltage indicates if pressure drop and purge flow
are adequate. If not, a ma lfunction is determined.
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
Do you have CONSULT-III?
Do you have CONSULT-III?
YES >> GO TO 2.
NO >> GO TO 6.
2.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
PBIB1026E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0441 EVAP control system in-
correct purge flow EVAP control system does not operate properly,
EVAP control system has a leak between intake
manifold and EVAP control system pressure sen-
sor. • EVAP canister purge volume control so-
lenoid valve stuck closed
• EVAP control system pressure sensor and the circuit
• Loose, disconnected or improper con-
nection of rubber tube
• Blocked rubber tube
• Cracked EVAP canister
• EVAP canister purge volume control so- lenoid valve circuit
• Accelerator pedal position sensor
• Blocked purge port
• EVAP canister vent control valve
• Drain filter
Revision: January 20102010 Versa

EC-276
< COMPONENT DIAGNOSIS >[HR16DE]
P0441 EVAP CONTROL SYSTEM
7.CHECK EVAP CANISTER PURGE VO
LUME CONTROL SOLENOID VALVE
Refer to EC-290, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 8.
NO >> Replace EVAP canister purge volume control solenoid valve.
8.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
1. Disconnect EVAP control system pressure sensor harness connector.
2. Check connectors for water.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Replace EVAP control system pressure sensor.
9.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR FUNCTION
Refer to EC-309, "
DTC Logic" for DTC P0452, EC-316, "DTC Logic" for DTC P0453.
Is the inspection result normal?
YES >> GO TO 10.
NO >> Replace EVAP control system pressure sensor.
10.CHECK RUBBER TUBE FOR CLOGGING
1. Disconnect rubber tube connected to EV AP canister vent control valve.
2. Check the rubber tube for clogging.
Is the inspection result normal?
YES >> GO TO 11.
NO >> Clean the rubber tube using an air blower.
11 .CHECK DRAIN FILTER
Refer to EC-277, "
Component Inspection (Drain filter)".
Is the inspection result normal?
YES >> GO TO 12.
NO >> Replace drain filter.
12.CHECK EVAP CANISTER VENT CONTROL VALVE
Refer to EC-298, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 13.
NO >> Replace EVAP canister vent control valve.
13.CHECK EVAP PURGE LINE
Inspect EVAP purge line (pipe and rubber tube). Check for evidence of leaks.
Refer to EC-498, "
Inspection".
Is the inspection result normal?
YES >> GO TO 14.
NO >> Replace it.
14.CLEAN EVAP PURGE LINE
Clean EVAP purge line (pipe and rubber tube) using air blower.
>> GO TO 15.
15.CHECK INTERMITTENT INCIDENT
Refer to EC-114, "
Diagnosis Procedure".
Water should not exist.
Revision: January 20102010 Versa

P0441 EVAP CONTROL SYSTEMEC-277
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>> INSPECTION END
Component Inspection (Drain filter)INFOID:0000000005398440
1.CHECK DRAIN FILTER
1. Check visually for insect nests in the drain filter air inlet.
2. Check visually for cracks or flaws in the appearance.
3. Check visually for cracks or flaws in the hose.
4. Blow air into port A and check that it flows freely out of port B.
5. Block port B.
6. Blow air into port A and check that there is no leakage.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace drain filter.
PBIB3641E
Revision: January 20102010 Versa