2008 NISSAN LATIO wheel

EC-332
< SERVICE INFORMATION >
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLE-
NOID VALVE
DescriptionINFOID:0000000001702836
SYSTEM DESCRIPTION
*1: The ECM determines the start signal status by the signal of engine speed and battery voltage.
*2: This signal is sent to the ECM through CAN communication line.
This system controls flow rate of fuel vapor from the EVAP canister. The opening of the vapor by-pass pas-
sage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP
canister purge volume control solenoid valve repeats ON/OFF operation according to the signal sent from the
ECM. The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is
determined by considering various engine conditions. When the engine is operating, the flow rate of fuel vapor
from the EVAP canister is regulated as the air flow changes.
COMPONENT DESCRIPTION
The EVAP canister purge volume control solenoid valve uses a ON/
OFF duty to control the flow rate of fuel vapor from the EVAP canis-
ter. The EVAP canister purge volume control solenoid valve is
moved by ON/OFF pulses from the ECM. The longer the ON pulse,
the greater the amount of fuel vapor that will flow through the valve.
CONSULT-II Reference Value in Data Monitor ModeINFOID:0000000001702837
Specification data are reference values.
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
1
EVAP canister
purge flow
controlEVAP canister purge volume
control solenoid valve Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Battery
Battery voltage*1
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Air fuel ratio (A/F) sensor 1Density of oxygen in exhaust gas
(Mixture ratio feedback signal)
Fuel tank temperature sensor Fuel temperature in fuel tank
Wheel sensor
Vehicle speed*
2
PBIA9215J
MONITOR ITEM CONDITION SPECIFICATION
PURG VOL C/V• Engine: After warming up
• Shift lever: N (A/T, CVT),
Neutral (M/T)
• Air conditioner switch: OFF
• No loadIdle
(Accelerator pedal is not depressed
even slightly, after engine starting)0%
2,000 rpm 0 - 50%

DTC P0500 VSS
EC-391
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
DTC P0500 VSS
DescriptionINFOID:0000000001702900
NOTE:
•If DTC P0500 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to EC-143
.
•If DTC P0500 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer
to EC-145
.
The vehicle speed signal is sent to the combination meter from “ABS actuator and electric unit (control unit)”
through CAN communication line. The combination meter then sends a signal to the ECM through CAN com-
munication line.
On Board Diagnosis LogicINFOID:0000000001702901
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode.
DTC Confirmation ProcedureINFOID:0000000001702902
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Steps 1 and 2 may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a
road test is expected to be easier, it is unnecessary to lift the vehicle.
WITH CONSULT-II
1. Start engine.
2. Read “VHCL SPEED SE” in “DATA MONITOR” mode with CONSULT-II. The vehicle speed on CONSULT-
II should exceed 10 km/h (6 MPH) when rotating wheels with suitable gear position.
If NG, go to EC-392, "
Diagnosis Procedure".
If OK, go to following step.
3. Select “DATA MONITOR” mode with CONSULT-II.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0500
0500Vehicle speed sensorThe almost 0 km/h (0 MPH) signal from
vehicle speed sensor is sent to ECM even
when vehicle is being driven.• Harness or connectors
(CAN communication line is open or shorted.)
• Harness or connectors
(Vehicle speed signal circuit is open or shorted)
• ABS actuator and electric unit (control unit)
• Wheel sensor
• Combination meter
Detected item Engine operating condition in fail-safe mode
Vehicle speed sensorWhen the fail-safe system for vehicle speed sensor is activated, the cooling fan operates
(High) while engine is running.
SEF196Y

EC-392
< SERVICE INFORMATION >
DTC P0500 VSS
4. Warm engine up to normal operating temperature.
5. Maintain the following conditions for at least 60 consecutive seconds.
6. If 1st trip DTC is detected, go to EC-392, "
Diagnosis Procedure".
Overall Function CheckINFOID:0000000001702903
Use this procedure to check the overall function of the vehicle speed signal circuit. During this check, a 1st trip
DTC might not be confirmed.
WITH GST
1. Lift up drive wheels.
2. Start engine.
3. Read vehicle speed signal in Service $01 with GST.
The vehicle speed signal on GST should be able to exceed 10 km/h (6 MPH) when rotating wheels with
suitable gear position.
4. If NG, go to EC-392, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001702904
1.CHECK DTC WITH “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”
Refer to BRC-8
.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace.
2.CHECK COMBINATION METER
Refer to DI-4
.
>>INSPECTION END
ENG SPEED More than 1,600 rpm
COOLAN TEMP/S More than 70°C (158°F)
B/FUEL SCHDL 6.0 - 31.8 msec
Shift lever Suitable position
PW/ST SIGNAL OFF

EC-412
< SERVICE INFORMATION >
DTC P1217 ENGINE OVER TEMPERATURE
DTC P1217 ENGINE OVER TEMPERATURE
System DescriptionINFOID:0000000001702929
SYSTEM DESCRIPTION
NOTE:
•If DTC P1217 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to EC-143
.
•If DTC P1217 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer
to EC-145
.
Cooling Fan Control
*1: The ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: This signal is sent to ECM through CAN communication line.
The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, refrigerant
pressure, and air conditioner ON signal. The control system has 3-step control [HIGH/LOW/OFF].
Cooling Fan Operation
Models with A/C
Models without A/C
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
1
Cooling fan
controlIPDM E/R
(Cooling fan relays) Battery
Battery voltage*
1
Wheel sensor
Vehicle speed*2
Engine coolant temperature sensor Engine coolant temperature
Air conditioner switch
Air conditioner ON signal*
2
Refrigerant pressure sensor Refrigerant pressure
PBIB2483E
PBIB3335E

DTC P1572 ASCD BRAKE SWITCH
EC-439
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
DTC Confirmation ProcedureINFOID:0000000001702961
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
• If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
• Procedure for malfunction B is not described here. It takes extremely long time to complete procedure for
malfunction B. By performing procedure for malfunction A, the incident that causes malfunction B can be
detected.
TESTING CONDITION:
Steps 4 and 5 may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a
road test is expected to be easier, it is unnecessary to lift the vehicle.
WITH CONSULT-II
1. Start engine.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Press MAIN switch and make sure that CRUISE indicator lights
up.
4. Drive the vehicle for at least 5 consecutive seconds under the
following condition.
If 1st trip DTC is detected, go to EC-441, "
Diagnosis Procedure".
If 1st trip DTC is not detected, go to the following step.
5. Drive the vehicle for at least 5 consecutive seconds under the
following condition.
6. If 1st trip DTC is detected, go to EC-441, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-II” above.
VHCL SPEED SE More than 30 km/h (19 MPH)
Shift lever Suitable position
VHCL SPEED SE More than 30 km/h (19 MPH)
Shift lever Suitable position
Driving locationDepress the brake pedal for more than 5
seconds so as not to come off from the
above-mentioned vehicle speed.
PBIB2386E

DTC P1574 ASCD VEHICLE SPEED SENSOR
EC-447
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
DTC P1574 ASCD VEHICLE SPEED SENSOR
Component DescriptionINFOID:0000000001702965
The ECM receives two vehicle speed sensor signals via CAN communication line. One is sent from combina-
tion meter, and the other is from TCM (Transmission control module). The ECM uses these signals for ASCD
control. Refer to EC-28
for ASCD functions.
On Board Diagnosis LogicINFOID:0000000001702966
This self-diagnosis has the one trip detection logic.
The MIL will not light up for this diagnosis.
NOTE:
•If DTC P1574 is displayed with DTC U1000, U1001, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-143
.
•If DTC P1574 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer
to EC-145
.
•If DTC P1574 is displayed with DTC P0500, first perform the trouble diagnosis for DTC P0500. Refer
to EC-391
.
•If DTC P1574 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer
to EC-397
.
DTC Confirmation ProcedureINFOID:0000000001702967
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Step 3 may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test
is expected to be easier, it is unnecessary to lift the vehicle.
WITH CONSULT-II
1. Start engine.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Drive the vehicle at more than 40 km/h (25MPH).
4. If DTC is detected, go to EC-448, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No.Trouble Diagnosis
NameDTC Detecting Condition Possible Cause
P1574
1574ASCD vehicle speed
sensorECM detects a difference between two vehicle
speed signals is out of the specified range.• Harness or connectors
(CAN communication line is open or shorted.)
• Harness or connectors
(Combination meter circuit is open or shorted.)
• TCM (A/T and CVT models)
• Combination meter
• Wheel sensor
•ECM
SEF058Y

EC-548
< SERVICE INFORMATION >
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Fuel PressureINFOID:0000000001703081
Idle Speed and Ignition TimingINFOID:0000000001703082
*: Under the following conditions:
• Air conditioner switch: OFF
• Electric load: OFF (Lights, heater fan & rear window defogger)
• Steering wheel: Kept in straight-ahead position
Calculated Load ValueINFOID:0000000001703083
Mass Air Flow SensorINFOID:0000000001703084
*: Engine is warmed up to normal operating temperature and running under no load.
Intake Air Temperature SensorINFOID:0000000001703085
Engine Coolant Temperature SensorINFOID:0000000001703086
Fuel pressure at idle
Approximately 350 kPa (3.57 kg/cm2, 51 psi)
Target idle speedA/T No load* (in P or N position)
700 ± 50 rpm CVT No load* (In P or N position)
M/T No load* (in Neutral position)
Air conditioner: ONA/T In P or N position
850 rpm or more CVT In P or N position
M/T In Neutral position
Ignition timingA/T In P or N position
13 ± 5° BTDC CVT In P or N position
M/T In Neutral position
Calculated load value% (Using CONSULT-II or GST)
At idle10 - 35
At 2,500 rpm10 - 35
Supply voltageBattery voltage (11 - 14V)
Output voltage at idle1.0 - 1.3*V
Mass air flow (Using CONSULT-II or GST)1.0 - 4.0 g·m/sec at idle*
2.0 - 10.0 g·m/sec at 2,500 rpm*
Temperature °C (°F) Resistance kΩ
25 (77)1.800 - 2.200
Temperature °C (°F) Resistance kΩ
20 (68)2.1 - 2.9
50 (122)0.68 - 1.00
90 (194)0.236 - 0.260

EM-1
ENGINE
C
D
E
F
G
H
I
J
K
L
M
SECTION EM
A
EM
N
O
P
CONTENTS
ENGINE MECHANICAL
SERVICE INFORMATION ............................3
PRECAUTIONS ...................................................3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
3
Precaution for Procedure without Cowl Top Cover ......3
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .....................................
3
Precaution for Drain Coolant .....................................4
Precaution for Disconnecting Fuel Piping .................4
Precaution for Removal and Disassembly ................4
Precaution for Inspection, Repair and Replace-
ment ..........................................................................
4
Precaution for Assembly and Installation ..................4
Parts Requiring Angular Tightening ..........................4
Precaution for Liquid Gasket .....................................5
PREPARATION ...................................................7
Special Service Tool .................................................7
Commercial Service Tool ..........................................9
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ............................
11
NVH Troubleshooting - Engine Noise .....................11
Use the Chart Below to Help You Find the Cause
of the Symptom .......................................................
12
DRIVE BELTS ....................................................13
Component ..............................................................13
Checking Drive Belts ...............................................13
Tension Adjustment ................................................13
Removal and Installation .........................................13
Component ..............................................................14
Removal and Installation of Drive Belt Auto Ten-
sioner ......................................................................
14
AIR CLEANER AND AIR DUCT ........................16
Component ..............................................................16
Removal and Installation .........................................16
Changing Air Cleaner Filter .....................................17
INTAKE MANIFOLD .........................................18
Component ..............................................................18
Removal and Installation .........................................18
EXHAUST MANIFOLD ......................................21
Component ..............................................................21
Removal and Installation .........................................21
OIL PAN ............................................................24
Component ..............................................................24
Removal and Installation .........................................24
IGNITION COIL, SPARK PLUG AND ROCK-
ER COVER ........................................................
30
Component ..............................................................30
Removal and Installation .........................................30
FUEL INJECTOR AND FUEL TUBE ................33
Component ..............................................................33
Removal and Installation .........................................33
TIMING CHAIN ..................................................37
Component ..............................................................37
Removal and Installation .........................................38
CAMSHAFT .......................................................47
Component ..............................................................47
Removal and Installation .........................................47
Valve Clearance ......................................................55
OIL SEAL ..........................................................59
Removal and Installation of Valve Oil Seal ..............59
Removal and Installation of Front Oil Seal ..............59
Removal and Installation of Rear Oil Seal ...............60
CYLINDER HEAD .............................................62
On-Vehicle Service ..................................................62
Component ..............................................................63
Removal and Installation .........................................63
Component ..............................................................65
Disassembly and Assembly .....................................66
Inspection After Disassembly ..................................67