NISSAN LATIO 2010 Service Repair Manual

EC-536
< SERVICE INFORMATION >[MR18DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
Without CONSULT-III
1. Remove fuel tank. Refer to
FL-12, "Removal and Installation".
2. Drain fuel from the tank as follows:
a. Remove fuel gauge retainer.
b. Drain fuel from the tank using a handy pump into a fuel container.
3. Check refueling EVAP vapor cut valve for being stuck to close as follows. Blow air into the refueling EVAP vapor cut valv e (from the end of EVAP/ORVR line hose), and check that
the air flows freely into the tank.
4. Check refueling EVAP vapor cut valve for being stuck to open as follows.
a. Connect vacuum pump to hose end.
b. Remove fuel gauge retainer with fuel gauge unit. Always replace O-ring with new one.
c. Put fuel tank upside down.
d. Apply vacuum pressure to hose end [ −13.3 kPa ( −100 mmHg, − 3.94 inHg)] with fuel gauge retainer
remaining open and check that the pressure is applicable.
1. Filler tube 2. Recirculation line3. EVAP/ORVR line
4. Vacuum/pressure handy pump 5. Fuel tank
BBIA0694E
Revision: January 20102010 Versa

ON BOARD REFUELING VAPOR RECOVERY (ORVR)EC-537
< SERVICE INFORMATION > [MR18DE]
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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.
7. If NG, replace drain filter.
1. Filler tube
2. Recirculation line3. EVAP/ORVR line
4. Vacuum/pressure handy pump 5. Fuel tank
BBIA0694E
PBIB3641E
Revision: January 20102010 Versa

EC-538
< SERVICE INFORMATION >[MR18DE]
POSITIVE CRANKCASE VENTILATION
POSITIVE CRANKCASE VENTILATION
DescriptionINFOID:0000000005532396
SYSTEM DESCRIPTION
This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is prov
ided to conduct crankcase blow-by gas to the intake
manifold. During partial throttle operation of the engine, the intake manifold sucks the blow-by gas through the
PCV valve. Normally, the capacity of the valve is suff icient to handle any blow-by and a small amount of venti-
lating air. The ventilating air is then drawn from the air inlet tubes into the crankcase. In this process the air
passes through the hose connecting air inlet tubes to rocker cover.
Under full-throttle condition, the manifold vacuum is in sufficient to draw the blow-by flow through the valve.
The flow goes through the hose connection in the reverse direction.
On vehicles with an excessively high blow-by, the valve does not
meet the requirement. This is because some of the flow will go
through the hose connection to the air inlet tubes under all condi-
tions.
Component InspectionINFOID:0000000005532397
PCV (POSITIVE CRANKCASE VENTILATION) VALVE
With engine running at idle, remove PCV valve from rocker cover. A
properly working valve makes a hissing noise as air passes through
it. A strong vacuum should be felt immediately when a finger is
placed over valve inlet.
JMBIA0686GB
PBIB1588E
PBIB1589E
Revision: January 20102010 Versa

POSITIVE CRANKCASE VENTILATIONEC-539
< SERVICE INFORMATION > [MR18DE]
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PCV VALVE VENTILATION HOSE
1. Check hoses and hose connections for leaks.
2. Disconnect all hoses and clean with compressed air. If any hose
cannot be freed of obstructions, replace.
S-ET277
Revision: January 20102010 Versa

EC-540
< SERVICE INFORMATION >[MR18DE]
NVIS (NISSAN VEHICLE I
MMOBILIZER SYSTEM-NATS)
NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)
DescriptionINFOID:0000000005532398
•If the security indicator illuminates with the igni tion switch ON or DTC P1610 - P1615 is displayed in
“SELF DIAGNOSTIC RESULT” mode, perform the trouble diagnosis for corresponding to the
detected DTC. Refer to EC-503, "
U0101-U1001".
• Check that no DTC is displayed in “SELF DIAGNOSIS RESULT” mode of “BCM” before erasing the
detected DTC in “ENGINE” mode with CONSULT-III.
• When replacing ECM, refer to EC-579, "
Procedure After Replacing ECM".
Revision: January 20102010 Versa

ON BOARD DIAGNOSTIC (OBD) SYSTEMEC-541
< SERVICE INFORMATION > [MR18DE]
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
IntroductionINFOID:0000000005532399
The ECM has an on board diagnostic system, which detects malfunctions related to engine sensors or actua-
tors. The ECM also records various emission-related diagnostic information including:
*: Service $0A is not applied for regions where it is not mandated.
The above information can be checked using procedures listed in the table below.
×
: Applicable —: Not applicable
*: When DTC and 1st trip DTC simultaneously appear on the display, they cannot be clearly distinguished from each other.
The malfunction indicator lamp (MIL) on the instrument panel lights up when the same malfunction is detected
in two consecutive trips (Two trip detection logic), or when the ECM enters fail-safe mode.
(Refer to EC-590, "
Fail-Safe Chart".)
Two Trip Detection LogicINFOID:0000000005532400
When a malfunction is detected for the first time, 1st tr ip DTC and 1st trip Freeze Frame data are stored in the
ECM memory. The MIL will not light up at this stage. <1st trip>
If the same malfunction is detected again during the next drive, the DTC and Freeze Frame data are stored in
the ECM memory, and the MIL lights up. The MIL lights up at the same time when the DTC is stored. <2nd
trip> The “trip” in the “Two Trip Detection Logic” m eans a driving mode in which self-diagnosis is performed
during vehicle operation. Specific on board diagnostic item s will cause the ECM to light up or blink the MIL,
and store DTC and Freeze Frame data, even in the 1st trip, as shown below.
× : Applicable —: Not applicable
Emission-related diagnostic information Diagnostic service
Diagnostic Trouble Code (DTC) Service $03 of SAE J1979 /ISO 15031-5
Freeze Frame data Service $02 of SAE J1979/ISO 15031-5
System Readiness Test (SRT) code Service $01 of SAE J1 979/ISO 15031-5
1st Trip Diagnostic Trouble Code (1st Trip DTC) Service $07 of SAE J1979/ISO 15031-5
1st Trip Freeze Frame data —
Test values and Test limits Service $06 of SAE J1979/ISO 15031-5
Calibration ID Service $09 of SAE J1979/ISO 15031-5
Permanent Diagnostic Trouble Code (Permanent DTC) Service $0A* of SAE J1979/ISO 15031-5
DTC 1st trip DTCFreeze
Frame data 1st trip Freeze
Frame data SRT code SRT status Test value Permanent
DTC status
CONSULT-III ×× × × ×× —×
GST ×× × —××××
ECM ××*— — — ×——
Items MIL
DTC1st trip DTC
1st trip 2nd trip
1st trip
displaying 2nd trip
displaying 1st trip
displaying 2nd trip
display-
ing
Blinking Lighting
up Blinking
Lighting
up
Misfire (Possible three way catalyst
damage) — DTC: P0300 - P0304 is
being detected ×
———— — ×—
Misfire (Possible three way catalyst
damage) — DTC: P0300 - P0304 is
being detected ——
×—— ×——
One trip detection diagnoses
(Refer to EC-542, "
Emission-relat-
ed Diagnostic Information".) —
×—— ×———
Except above — — —×— ×× —
Revision: January 20102010 Versa

EC-542
< SERVICE INFORMATION >[MR18DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
When there is an open circuit on MIL circuit, the ECM cannot warn the driver by MIL lighting up when there is
malfunction on engine control system.
Therefore, when electrical controlled throttle and part
of ECM related diagnoses are continuously detected as
NG for 5 trips, ECM warns the driver that engine cont rol system malfunctions and MIL circuit is open by means
of operating fail-safe function.
The fail-safe function also operates when above diagnoses except MIL circuit are detected, and demands the
driver to repair the malfunction.
Emission-related Diagnostic InformationINFOID:0000000005532401
EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS
× : Applicable —: Not applicable
Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut
Items
(CONSULT-III screen terms) DTC*
1
SRT
code Trip MIL Permanent
DTC
group
*4Reference
CONSULT-III
GST*
2ECM*3
LOST COMM (TCM) U0101
0101*5—1 ×BEC-639
LOST COMM (BCM) U0140
0140*5—1 ×BEC-641
CAN COMM CIRCUIT U1001
1001*5—2 — — EC-643
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000
——
Flashing*6— EC-565
INT/V TIM CONT-B1 P0011 0011×2 × BEC-645
A/F SEN1 HTR (B1) P0031 0031 — 2 ×BEC-649
A/F SEN1 HTR (B1) P0032 0032 — 2 ×BEC-649
HO2S2 HTR (B1) P0037 0037 — 2 ×BEC-654
HO2S2 HTR (B1) P0038 0038 — 2 ×BEC-654
INT/V TIM V/CIR-B1 P0075 0075 — 2 ×BEC-659
MAF SEN/CIRCUIT-B1 P0101 0101 — 2 ×BEC-664
MAF SEN/CIRCUIT-B1 P0102 0102 — 1 ×BEC-672
MAF SEN/CIRCUIT-B1 P0103 0103 — 1 ×BEC-672
IAT SEN/CIRCUIT-B1 P0112 0112 — 2 ×BEC-679
IAT SEN/CIRCUIT-B1 P0113 0113 — 2 ×BEC-679
ECT SEN/CIRC P0116 0116 — 2 ×BEC-683
ECT SEN/CIRC P0117 0117 — 1 ×BEC-686
ECT SEN/CIRC P0118 0118 — 1 ×BEC-686
TP SEN 2/CIRC-B1 P0122 0122 — 1 ×BEC-691
TP SEN 2/CIRC-B1 P0123 0123 — 1 ×BEC-691
ECT SENSOR P0125 0125 — 2 ×BEC-696
IAT SENSOR-B1 P0127 0127 — 2 ×BEC-699
THERMSTAT FNCTN P0128 0128 — 2 ×BEC-702
A/F SENSOR1 (B1) P0130 0130 — 2 ×AEC-704
A/F SENSOR1 (B1) P0131 0131 — 2 ×BEC-710
A/F SENSOR1 (B1) P0132 0132 — 2 ×BEC-716
HO2S2 (B1) P0137 0137×2 × AEC-722
HO2S2 (B1) P0138 0138×2 × AEC-731
HO2S2 (B1) P0139 0139×2 × AEC-741
A/F SENSOR1 (B1) P014C 014C — 2 ×AEC-750
Revision: January 20102010 Versa

ON BOARD DIAGNOSTIC (OBD) SYSTEMEC-543
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OA/F SENSOR1 (B1)
P014D 014D — 2 ×AEC-750
A/F SENSOR1 (B1) P015A 015A — 2 ×AEC-750
A/F SENSOR1 (B1) P015B 015B — 2 ×AEC-750
FUEL SYS-LEAN-B1 P0171 0171 — 2 ×BEC-758
FUEL SYS-RICH-B1 P0172 0172 — 2 ×BEC-764
FTT SENSOR P0181 0181 — 2 ×BEC-770
FTT SEN/CIRCUIT P0182 0182 — 2 ×BEC-774
FTT SEN/CIRCUIT P0183 0183 — 2 ×BEC-774
TP SEN 1/CIRC-B1 P0222 0222 — 1 ×BEC-778
TP SEN 1/CIRC-B1 P0223 0223 — 1 ×BEC-778
MULTI CYL MISFIRE P0300 0300 — 1 or 2 ×BEC-783
CYL 1 MISFIRE P0301 0301 — 1 or 2 ×BEC-783
CYL 2 MISFIRE P0302 0302 — 1 or 2 ×BEC-783
CYL 3 MISFIRE P0303 0303 — 1 or 2 ×BEC-783
CYL 4 MISFIRE P0304 0304 — 1 or 2 ×BEC-783
KNOCK SEN/CIRC-B1 P0327 0327 — 2 — —EC-789
KNOCK SEN/CIRC-B1 P0328 0328 — 2 — —EC-789
CKP SEN/CIRCUIT P0335 0335 — 2 ×BEC-793
CMP SEN/CIRC-B1 P0340 0340 — 2 ×BEC-799
TW CATALYST SYS-B1 P0420 0420× 2 ×AEC-805
EVAP PURG FLOW/MON P0441 0441×2 × AEC-810
EVAP SMALL LEAK P0442 0442×2 × AEC-815
PURG VOLUME CONT/V P0443 0443 — 2 ×AEC-822
PURG VOLUME CONT/V P0444 0444 — 2 ×BEC-830
PURG VOLUME CONT/V P0445 0445 — 2 ×BEC-830
VENT CONTROL VALVE P0447 0447 — 2 ×BEC-836
VENT CONTROL VALVE P0448 0448 — 2 ×BEC-842
EVAP SYS PRES SEN P0451 0451 — 2 ×AEC-848
EVAP SYS PRES SEN P0452 0452 — 2 ×BEC-851
EVAP SYS PRES SEN P0453 0453 — 2 ×BEC-858
EVAP GROSS LEAK P0455 0455 — 2 ×AEC-866
EVAP VERY SML LEAK P0456 0456
×*72 × AEC-873
FUEL LEV SEN SLOSH P0460 0460 — 2 ×AEC-881
FUEL LEVEL SENSOR P0461 0461 — 2 ×BEC-883
FUEL LEVL SEN/CIRC P0462 0462 — 2 ×BEC-885
FUEL LEVL SEN/CIRC P0463 0463 — 2 ×BEC-885
VEH SPEED SEN/CIRC*8P0500 0500 — 2 ×BEC-887
ISC SYSTEM P0506 0506 — 2 ×BEC-889
ISC SYSTEM P0507 0507 — 2 ×BEC-891
ECM P0605 0605 — 1 or 2 — or ×B EC-893
ECM P0607 0607 —1 (CVT)
1 (A/T)
2 (M/T) ×
(CVT)
× (A/T)
— (M/T) B
EC-893
Items
(CONSULT-III screen terms) DTC*
1
SRT
code Trip MIL Permanent
DTC
group
*4Reference
CONSULT-III
GST*
2ECM*3
Revision: January 20102010 Versa

EC-544
< SERVICE INFORMATION >[MR18DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
SENSOR POWER/CIRC
P0643 0643 — 1 ×BEC-896
T/M RANGE SENSOR A P0705 0705 — 2 ×BAT- 9 0
(A/T)
CVT-62

(CVT)
FLUID TEMP SENSOR A*
9P0710 0710 — 2 (A/T)
1 (CVT) ×
BAT- 9 5
(A/T)
CVT-67

(CVT)
INPUT SPEED SENSOR A P0715 0715 — 2 ×BCVT-72
OUTPUT SPEED SENSOR*8P0720 0720 — 2 ×BAT- 1 0 0
(A/T)
CVT-76

(CVT)
ENGINE SPEED P0725 0725 — 2 ×BAT- 1 0 5
1GR INCORRECT RATIO*9P0731 0731 — 2 ×BAT- 1 0 9
2GR INCORRECT RATIO*9P0732 0732 — 2 ×BAT- 11 2
3GR INCORRECT RATIO*9P0733 0733 — 2 ×BAT- 11 5
4GR INCORRECT RATIO*9P0734 0734 — 2 ×BAT- 11 8
TORQUE CONVERTER P0740 0740 — 2 ×BAT- 1 2 3
(A/T)
CVT-84

(CVT)
TORQUE CONVERTER P0744 0744 — 2 ×BAT- 1 2 8
(A/T)
CVT-89

(CVT)
PC SOLENOID A P0745 0745 — 2 ×BAT- 1 3 3
(A/T)
CVT-91

(CVT)
PC SOLENOID A P0746 0746 — 1 ×BCVT-96
SHIFT SOLENOID A P0750 0750 — 1 ×BAT- 1 3 8
SHIFT SOLENOID B P0755 0755 — 1 ×BAT- 1 4 3
PC SOLENOID B P0776 0776 — 2 ×BCVT-98
PC SOLENOID B P0778 0778 — 2 ×BCVT-100
FLUID PRESS SEN/SW A P0840 0840 — 2 ×BCVT-105
P-N POS SW/CIRCUIT P0850 0850 — 2 ×BEC-901
C L O S E D L O O P - B 1 P 11 4 8 11 4 8 — 1 ×AEC-907
TCS C/U FUNCTN P1211 1211 — 2 — —EC-908
TCS/CIRC P1212 1212 — 2 — —EC-909
ENG OVER TEMP P1217 1217 — 1 ×BEC-910
CTP LEARNING-B1 P1225 1225 — 2 — —EC-919
CTP LEARNING-B1 P1226 1226 — 2 — —EC-921
COLD START CONTROL P1421 1421 — 2 ×AEC-923
ASCD SW P1564 1564 — 1 — —EC-925
ASCD BRAKE SW P1572 1572 — 1 — —EC-931
ASCD VHL SPD SEN P1574 1574 — 1 — —EC-940
LOCK MODE P1610 1610 — 2 — —BL-259
ID DISCORD,IMMU-ECM P1611 1611 — 2 — —BL-259
CHAIN OF ECM-IMMU P1612 1612 — 2 — —BL-259
CHAIN OF IMMU-KEY P1614 1614 — 2 — —BL-259
Items
(CONSULT-III screen terms) DTC*
1
SRT
code Trip MIL Permanent
DTC
group
*4Reference
CONSULT-III
GST*
2ECM*3
Revision: January 20102010 Versa

ON BOARD DIAGNOSTIC (OBD) SYSTEMEC-545
< SERVICE INFORMATION > [MR18DE]
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*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012/ISO 15031-6.
*3: In Diagnostic Test Mode II
(Self-diagnostic results), this number is controlled by NISSAN.
*4: Refer to EC-542, "
Emission-related Diagnostic Information", “PERMANENT DIAGNOSTIC TROUBLE CODE (PERMANENT DTC)”.
*5: The troubleshooting for this DTC needs CONSULT-III.
*6: When the ECM in the mode of displaying SRT status, MIL may flash. For the details, refer to "How to Display SRT Status".
*7: SRT code will not be set if the self-diagnostic result is NG.
*8: When the fail-safe operations for both self-diagnoses occur, the MIL illuminates.
*9: When erasing this DTC, al ways use CONSULT-III or GST.
DTC AND 1ST TRIP DTC
The 1st trip DTC (whose number is the same as the DTC number) is displayed for the latest self-diagnostic
result obtained. If the ECM memory was cleared previously , and the 1st trip DTC did not recur, the 1st trip DTC
will not be displayed.
If a malfunction is detected during the 1st trip, the 1st trip DTC is stored in the ECM memory. The MIL will not
light up (two trip detection logic). If the same malfunc tion is not detected in the 2nd trip (meeting the required
driving pattern), the 1st trip DTC is cleared from the ECM memory. If the same malfunction is detected in the
2nd trip, both the 1st trip DTC and DTC are stored in t he ECM memory and the MIL lights up. In other words,
the DTC is stored in the ECM memory and the MIL lights up when the same malfunction occurs in two consec-
utive trips. If a 1st trip DTC is stored and a non-diagnostic operation is performed between the 1st and 2nd
trips, only the 1st trip DTC will continue to be stored. Fo r malfunctions that blink or light up the MIL during the
1st trip, the DTC and 1st trip DTC are stored in the ECM memory.
Procedures for clearing the DTC and the 1st trip DT C from the ECM memory are described in "HOW TO
ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION".
For malfunctions in which 1st trip DTCs are displa yed, refer to "EMISSION-RELATED DIAGNOSTIC INFOR-
MATION ITEMS". These items are required by legal r egulations to continuously monitor the system/compo-
nent. In addition, the items monitored non-cont inuously are also displayed on CONSULT-III.
DIFFERENCE OF KEYP1615 1615 — 2 — —BL-259
IN PULY SPEED P1715 1715 — 2 — —EC-942
(A/T)
EC-942

(CVT)
SLCT SOLENOID P1740 1740 — 2 ×BCVT-124
OVER CLUTCH SOLENOID P1760 1760 — 2 ×BAT- 1 4 8
STEP MOTOR P1777 1777 — 1 ×BCVT-129
STEP MOTOR P1778 1778 — 2 ×BCVT-133
BRAKE SW/CIRCUIT P1805 1805 — 2 — —EC-944
ETC MOT PWR-B1 P2100 2100 — 1 ×BEC-948
ETC FNCTN/CIRC-B1 P2101 2101 — 1 ×BEC-952
ETC MOT PWR P2103 2103 — 1 ×BEC-948
ETC MOT-B1 P2118 2118 — 1 ×BEC-958
ETC ACTR-B1 P2119 2119 — 1 ×BEC-963
APP SEN 1/CIRC P2122 2122 — 1 ×BEC-965
APP SEN 1/CIRC P2123 2123 — 1 ×BEC-965
APP SEN 2/CIRC P2127 2127 — 1 ×BEC-970
APP SEN 2/CIRC P2128 2128 — 1 ×BEC-970
TP SENSOR-B1 P2135 2135 — 1 ×BEC-977
APP SENSOR P2138 2138 — 1 ×BEC-982
A/F SENSOR1 (B1) P2A00 2A00 — 2 ×AEC-989
Items
(CONSULT-III screen terms) DTC*
1
SRT
code Trip MIL Permanent
DTC
group
*4Reference
CONSULT-III
GST*
2ECM*3
Revision: January 20102010 Versa