2008 NISSAN LATIO engine

GI-4
< SERVICE INFORMATION >
PRECAUTIONS
• Use hand tools, power tools (disassembly only) and recommended
special tools where specified for safe and efficient service repairs.
• When repairing the fuel, oil, water, vacuum or exhaust systems,
check all affected lines for leaks.
• Before servicing the vehicle:
Protect fenders, upholstery and carpeting with appropriate covers.
Take caution that keys, buckles or buttons do not scratch paint.
WARNING:
To prevent ECM from storing the diagnostic trouble codes, do not carelessly disconnect the harness
connectors which are related to the engine control system and TCM (transmission control module)
system. The connectors should be disconnected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and AT sections.
Precaution for Three Way CatalystINFOID:0000000001702425
If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To
prevent this, follow the instructions.
• Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.
• When checking for ignition spark or measuring engine compression, make tests quickly and only when nec-
essary.
• Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to the
catalyst.
Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three
way catalyst.
Precaution for Fuel (Unleaded Regular Gasoline Recommended)INFOID:0000000001702426
Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research
octane number 91).
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Do not use E-85
fuel (85% fuel ethanol, 15% unleaded gasoline) unless the vehicle is specifically designed for E-85 fuel
(i.e. Flexible Fuel Vehicle - FFV models). Using a fuel other than that specified could adversely affect
the emission control devices and systems, and could also affect the warranty coverage validity.
PBIC0190E
SGI234

PRECAUTIONS
GI-5
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Precaution for Multiport Fuel Injection System or Engine Control SystemINFOID:0000000001702427
• Before connecting or disconnecting any harness connector for the
multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.
• Before disconnecting pressurized fuel line from fuel pump to injec-
tors, be sure to release fuel pressure.
• Be careful not to jar components such as ECM and mass air flow
sensor.
Precaution for HosesINFOID:0000000001702428
HOSE REMOVAL AND INSTALLATION
• To prevent damage to rubber hose, do not pry off rubber hose with
tapered tool or screwdriver.
• To reinstall the rubber hose securely, make sure that hose insertion
length and orientation is correct. (If tube is equipped with hose
stopper, insert rubber hose into tube until it butts up against hose
stopper.)
HOSE CLAMPING
• If old rubber hose is re-used, install hose clamp in its original posi-
tion (at the indentation where the old clamp was). If there is a trace
of tube bulging left on the old rubber hose, align rubber hose at
that position.
• Discard old clamps; replace with new ones.
SGI787
SMA019D
SMA020D
SMA021D

GI-6
< SERVICE INFORMATION >
PRECAUTIONS
• After installing plate clamps, apply force to them in the direction of
the arrow, tightening rubber hose equally all around.
Precaution for Engine OilsINFOID:0000000001702429
Prolonged and repeated contact with used engine oil may cause skin cancer. Try to avoid direct skin contact
with used oil.
If skin contact is made, wash thoroughly with soap or hand cleaner as soon as possible.
HEALTH PROTECTION PRECAUTIONS
• Avoid prolonged and repeated contact with oils, particularly used engine oils.
• Wear protective clothing, including impervious gloves where practicable.
• Do not put oily rags in pockets.
• Avoid contaminating clothes, particularly underpants, with oil.
• Heavily soiled clothing and oil-impregnated footwear should not be worn. Overalls must be cleaned regu-
larly.
• First aid treatment should be obtained immediately for open cuts and wounds.
• Use barrier creams, applying them before each work period, to help the removal of oil from the skin.
• Wash with soap and water to ensure all oil is removed (skin cleansers and nail brushes will help). Prepara-
tions containing lanolin replace the natural skin oils which have been removed.
• Do not use gasoline, kerosene, diesel fuel, gas oil, thinners or solvents for cleaning skin.
• If skin disorders develop, obtain medical advice without delay.
• Where practical, degrease components prior to handling.
• Where there is a risk of eye contact, eye protection should be worn, for example, chemical goggles or face
shields; in addition an eye wash facility should be provided.
Precaution for Air ConditioningINFOID:0000000001702430
Use an approved refrigerant recovery unit any time the air conditioning system must be discharged. Refer to
MTC-74, "
HFC-134a (R-134a) Service Procedure" for specific instructions.
SMA022D

HOW TO USE THIS MANUAL
GI-21
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PFR, RR Front, Rear
LH, RH Left-Hand, Right-Hand
M/T Manual Transaxle/Transmission
OD Overdrive
P/S Power Steering
SAE Society of Automotive Engineers, Inc.
SDS Service Data and Specifications
SST Special Service Tools
2WD 2-Wheel Drive
2
22nd range 2nd gear
2
12nd range 1st gear
1
21st range 2nd gear
1
11st range 1st gear ABBREVIATION DESCRIPTION

SERVICE INFORMATION FOR ELECTRICAL INCIDENT
GI-25
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How to Perform Efficient Diagnosis for an Electrical IncidentINFOID:0000000001702441
WORK FLOW
INCIDENT SIMULATION TESTS
Introduction
Sometimes the symptom is not present when the vehicle is brought in for service. If possible, re-create the
conditions present at the time of the incident. Doing so may help avoid a No Trouble Found Diagnosis. The fol-
lowing section illustrates ways to simulate the conditions/environment under which the owner experiences an
electrical incident.
The section is broken into the six following topics:
• Vehicle vibration
• Heat sensitive
• Freezing
• Water intrusion
• Electrical load
SGI838
STEP DESCRIPTION
STEP 1Get detailed information about the conditions and the environment when the incident occurred.
The following are key pieces of information required to make a good analysis:
WHATVehicle Model, Engine, Transmission/Transaxle and the System (i.e. Radio).
WHENDate, Time of Day, Weather Conditions, Frequency.
WHERERoad Conditions, Altitude and Traffic Situation.
HOWSystem Symptoms, Operating Conditions (Other Components Interaction).
Service History and if any After Market Accessories have been installed.
STEP 2Operate the system, road test if necessary.
Verify the parameter of the incident.
If the problem cannot be duplicated, refer to “Incident Simulation Tests”.
STEP 3Get the proper diagnosis materials together including:
• Power Supply Routing
• System Operation Descriptions
• Applicable Service Manual Sections
• Check for any Service Bulletins
Identify where to begin diagnosis based upon your knowledge of the system operation and the customer comments.
STEP 4Inspect the system for mechanical binding, loose connectors or wiring damage.
Determine which circuits and components are involved and diagnose using the Power Supply Routing and Harness Lay-
outs.
STEP 5 Repair or replace the incident circuit or component.
STEP 6Operate the system in all modes. Verify the system works properly under all conditions. Make sure you have not inad-
vertently created a new incident during your diagnosis or repair steps.

GI-26
< SERVICE INFORMATION >
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
• Cold or hot start up
Get a thorough description of the incident from the customer. It is important for simulating the conditions of the
problem.
Vehicle Vibration
The problem may occur or become worse while driving on a rough road or when engine is vibrating (idle with
A/C on). In such a case, you will want to check for a vibration related condition. Refer to the following illustra-
tion.
CONNECTORS & HARNESS
Determine which connectors and wiring harness would affect the electrical system you are inspecting. Gently
shake each connector and harness while monitoring the system for the incident you are trying to duplicate.
This test may indicate a loose or poor electrical connection.
HINT
Connectors can be exposed to moisture. It is possible to get a thin film of corrosion on the connector termi-
nals. A visual inspection may not reveal this without disconnecting the connector. If the problem occurs inter-
mittently, perhaps the problem is caused by corrosion. It is a good idea to disconnect, inspect and clean the
terminals on related connectors in the system.
SENSORS & RELAYS
Gently apply a slight vibration to sensors and relays in the system you are inspecting.
This test may indicate a loose or poorly mounted sensor or relay.
ENGINE COMPARTMENT
There are several reasons a vehicle or engine vibration could cause an electrical complaint. Some of the
things to check for are:
• Connectors not fully seated.
• Wiring harness not long enough and is being stressed due to engine vibrations or rocking.
• Wires laying across brackets or moving components.
• Loose, dirty or corroded ground wires.
• Wires routed too close to hot components.
To inspect components under the hood, start by verifying the integrity of ground connections. (Refer to Ground
Inspection described later.) First check that the system is properly grounded. Then check for loose connection
by gently shaking the wiring or components as previously explained. Using the wiring diagrams inspect the
wiring for continuity.
BEHIND THE INSTRUMENT PANEL
An improperly routed or improperly clamped harness can become pinched during accessory installation. Vehi-
cle vibration can aggravate a harness which is routed along a bracket or near a screw.
UNDER SEATING AREAS
An unclamped or loose harness can cause wiring to be pinched by seat components (such as slide guides)
during vehicle vibration. If the wiring runs under seating areas, inspect wire routing for possible damage or
pinching.
Heat Sensitive
SGI839

CONSULT-III CHECKING SYSTEM
GI-35
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PCONSULT-III CHECKING SYSTEM
DescriptionINFOID:0000000001806209
• CONSULT-III is a hand-held type tester. When it is connected with a diagnostic connector equipped on the
vehicle side, it will communicate with the control unit equipped in the vehicle and then enable various kinds
of diagnostic tests.
• Refer to CONSULT-III Operator's Manual for more information.
Function and System ApplicationINFOID:0000000001806219
x: Applicable.
*1: If equipped.
*2: This option is shown on vehicles equipped with continuously variable transmission (CVT).
*3: NVIS (NATS) [NISSAN Vehicle Immobilizer System (Nissan Anti-theft System)]. Diagnostic test mode Function
ENGINE
ABS*
1
AIR BAG
EPS
IPDM E/R
BCM
METER/M&A
INTELLIGENT KEY*
1
A/T*
1
TRANSMISSION*
2
NVIS (NATS)*
3
NVIS (NATS BCM OR S/ENT)*
3
NATS I-KEY
*3,5
Work supportThis mode enables a technician to adjust some devices faster
and more accurately by following indications on CONSULT-III.x----x-xxx--x
Self-diagnostic results Self-diagnostic results can be read and erased quickly. xxxxxxxxxxx - x
Trouble diagnostic
recordCurrent self-diagnostic results and all trouble diagnostic records
previously stored can be read.--x----------
Data monitor Input/Output data in the ECU can be read. xx - xx - xxxx - - -
CAN diagnostic support
monitorThe communication condition of CAN communication line can
be read.xx - xxxxxxx - - -
Calibration data*
2Shows unit calibration IDs, offsets and gains. This data is stored
in the ECU memory.---------x---
Active testDiagnostic Test Mode in which CONSULT-III drives actuators
apart from ECU shifting some parameters in a specified range.xx--x--x-----
Function testThis mode can show results of self-diagnosis of ECU with either
"OK" or "NG". For engines, more practical tests regarding sen-
sors/switches and/or actuators are available.xxx-----xx---
DTC & SRT confirmationThe results of SRT (System Readiness Test) and the self-diag-
nosis status/result can be confirmed.x------------
DTC work supportThe operating condition to confirm Diagnosis Trouble Codes
can be selected.x-------x----
ECM/ECU part number ECM/ECU part number can be read. x x - x - x - x x x - - -
ECU discriminated No.Classification number of a replacement ECU can be read to pre-
vent an incorrect ECU from being installed.--x----------
Passenger airbag Displays the STATUS (readiness) of front passenger air bag. --x----------
Configuration Sets control module parameters to match vehicle options. -----x-------
Steering lock release
*4,5Condition of steering lock release solenoid. -----------x-
Control unit initializa-
tion
*4,6All registered ignition key IDs in NATS components can be ini-
tialized and new IDs can be registered.----------x--
PIN Read
*4This mode enables technician to get BCM-specific 5-digit code.-----------x-

GI-38
< SERVICE INFORMATION >
LIFTING POINT
LIFTING POINT
Special Service ToolINFOID:0000000001702449
CAUTION:
• Every time the vehicle is lifted up, maintain the complete vehicle curb condition.
• Since the vehicle's center of gravity changes when removing main parts on the front side (engine,
transmission, suspension etc.), support a jack up point on the rear side garage jack with a mission
jack or equivalent.
• Since the vehicle's center of gravity changes when removing main parts on the rear side (rear axle,
suspension, etc.), support a jack up point on the front side garage jack with a mission jack or equiv-
alent.
• Be careful not to smash or do not do anything that would affect piping parts.
Garage Jack and Safety Stand and 2-Pole LiftINFOID:0000000001702450
WARNING:
• Park the vehicle on a level surface when using the jack. Make sure to avoid damaging pipes, tubes,
etc. under the vehicle.
• Never get under the vehicle while it is supported only by the jack. Always use safety stands when
you have to get under the vehicle.
• Place wheel chocks at both front and back of the wheels on the ground.
• When lifting the vehicle, open the lift arms as wide as possible and ensure that the front and rear of
the vehicle are well balanced.
• When setting the lift arm, do not allow the arm to contact the brake tubes, brake cable, fuel lines and
sill spoiler.
Tool number
Tool nameDescription
LM4086-0200
Board on attachment
LM4519-0000
Safety stand attachment
S-NT001
S-NT002