NISSAN LATIO 2010 Service Repair Manual

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ENGINE
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SECTION FL
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CONTENTS
FUEL SYSTEM
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
PREPARATION ...................................................4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
FUEL SYSTEM ....................................................5
Checking Fuel Line ............................................. ......5
General Precaution .............................................. .....5
FUEL LEVEL SENSOR UNIT, FUEL FILTER
AND FUEL PUMP ASSEMBLY .........................
6
Component ...............................................................6
Removal and Installation ..........................................6
FUEL TANK ......................................................12
Component .......................................................... ....12
Removal and Installation .........................................12
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
17
Standard and Limit ..................................................17
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PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006055179
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000006055180
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
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PRECAUTIONSFL-3
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5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
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PREPARATION
PREPARATION
Special Service ToolINFOID:0000000006055181
The actual shapes of the Kent-Moore tools may differ from those of the special tools illustrated here.
Commercial Service ToolINFOID:0000000006055182
Tool number
(Kent-Moore No.)
Tool name Description
KV991J0090
(J-46214)
Fuel tank lock ring tool Removing and installing fuel tank lock ring
(Locking tab style)
—
(J-38879-B)
Fuel tank lock ring tool Removing and installing fuel tank lock ring
(Threaded style)
LBIA0353E
ZZA0122D
Tool name
Description
Power tools Loosening bolts and nuts
PBIC0190E
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FUEL SYSTEMFL-5
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FUEL SYSTEM
Checking Fuel LineINFOID:0000000006055183
Inspect fuel lines, fuel filler cap and fuel tank for improper attach-
ment, leaks, cracks, damage, loos
e connections, chafing or deterio-
ration.
If necessary, repair or replace damaged parts.
General PrecautionINFOID:0000000006055184
WARNING:
When replacing fuel line parts, be sure to observe the following.
• Put a “CAUTION: FLAMMABLE” sign in the work area.
• Be sure to work in a well ventilated area and have a CO
2 fire extinguisher.
• Do not smoke while working on the fuel system. Keep open flames and sparks away from the work area.
• Put drained fuel in an explosion-proof containe r and put the lid on securely. Keep the container in
safe area.
CAUTION:
• Use gasoline required by the regulations for octane number. Refer to GI-4, "
Precaution for Fuel
(Unleaded Regular Gasoline Recommended)".
• Before removing fuel line parts, perform the following procedures:
- Release fuel pressure from the fuel lines. Refer to EC-496, "
Inspection" (HR16DE), EC-582, "Fuel
Pressure Check" (MR18DE).
- Disconnect the battery ground cable.
• Always replace O-rings and clamps with new ones.
• Do not kink or twist tubes when they are being installed.
• Perform work on level surface.
• Do not tighten hose clamps excessi vely to avoid damaging hoses.
• After connecting fuel tube quick connector s, make sure quick connectors are secure.
Ensure that connector and resin tube do not contact any adjacent parts.
• After installing tubes, make sure there is no fu el leakage at connections in the following steps.
- Apply fuel pressure to fuel lin es by turning ignition switch ON (without starting the engine). Then
check for fuel leaks at the fuel tube connections.
- Start engine and rev it up and check for fuel leaks at connections.
• Use only a genuine NISSAN fuel filler cap as a replacemen t. If an incorrect fuel filler cap is used, the
MIL may come on.
• For servicing “Evaporative Emission System” parts, refer to EC-501, "
Inspection" (HR16DE), EC-527,
"Component Inspection" (MR18DE).
• For servicing "On Board Refueling Vapo r Recovery (ORVR)" parts, refer to EC-535, "
Component
Inspection".
SMA803A
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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
ComponentINFOID:0000000006055185
Removal and InstallationINFOID:0000000006055186
REMOVAL
WARNING:
Be sure to read “General Precautions” be fore working on the fuel system. Refer to FL-5, "
General Pre-
caution".
1. Check fuel level with the vehicle on a level surface. If the fuel gauge indicates more than the level as shown (7/8 full), drain
fuel from the fuel tank until the fuel gauge indicates level as
shown (7/8 full).
NOTE:
Fuel will be spilled when removing fuel pump assembly if fuel
level is above the fuel pump assembly installation surface.
• As a guide, fuel level is at the level as shown or below when
approximately 12 (3 1/8 US gal, 2 5/8 Imp gal) of fuel is
drained from a full fuel tank.
• In case fuel pump does not operate, perform the following pro- cedure.
a. Insert fuel tubing of less than 25 mm (0.98 in) in di ameter into fuel filler tube through fuel filler opening to
drain fuel from fuel filler tube.
b. Disconnect fuel filler hose from fuel filler tube. Refer to FL-12
.
c. Insert fuel tubing into fuel tank through f uel filler hose to drain fuel from fuel tank.
2. Open fuel door and unscrew the fuel filler cap to release the pressure inside the fuel tank.
3. Release the fuel pressure from the fuel lines. Refer to EC-496, "
Inspection" (HR16DE), EC-582, "Fuel
Pressure Check" (MR18DE).
4. Remove rear seat bottom. Refer to SE-16, "
Removal and Installation" (60:40 Split - Hatchback), SE-22,
"Removal and Installation" (60:40 Split - Sedan) or SE-26, "Removal and Installation" (Fixed).
5. Turn the three retainers 90 ° in a clockwise direction and remove the fuel pump inspection hole cover.
1. Lock ring (Locking tab style shown) 2. Fuel level sensor unit, fuel filter and fuel pump assembly 3. O-ring
4. Fuel tank
WCIA0590E
KBIA3505J
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6. Disconnect electrical connector (A) and fuel feed hose quick
connector (B).
• Fuel feed hose (1)
• Front
• Disconnect the quick connector using the following procedure.
- Hold the sides of the connector, push in tabs and pull out thetube.
- If quick connector and tube on fuel pump assembly are stuck, push and pull several times until they move. Disconnect them
by pulling.
CAUTION:
• The tube can be removed when the tabs are completely
depressed. Do not twist it more than necessary.
• Do not use any tools to remove the quick connector.
• Keep resin tube away from heat. Be especially careful
when welding near the resin tube.
• Prevent acid liquid such as battery electrolyte, from get- ting on resin tube.
• Do not bend or twist resin tube during installation and removal.
• To keep the connecting port ion clean, free of foreign
materials and to avoid damage, cover them completely
with plastic bags or something similar.
• Do not insert plug to prevent damage to O-ring in quick connector.
7. Remove the lock ring using one of the following methods.
LOCKING TAB STYLE
• Lock tabs (A)
• Lock ring (1)
WBIA0782E
SFE562A
PBIC0163E
WBIA0783E
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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
- Remove the lock ring using Tool as shown.
THREADED STYLE• Remove the lock ring using Tool as shown.
NOTE:
Put a matching mark on the fuel pump assembly and fuel tank
to reference the position of the fuel pump assembly during
installation. If Installing a new fuel pump, transfer the applied
matching mark from the old fuel pump assembly to the new
one.
8.9. Remove fuel level sensor unit, fuel filter and fuel pump assembly. CAUTION:
• Do not bend float arm during removal.
• Do not allow foreign materials to fall into fuel tank. Use a lint free cloth when handling compo-
nents.
• Avoid impacts such as dropping when handling components.
INSPECTION AFTER REMOVAL
Make sure that the fuel level sensor unit, fuel filter and fuel pump is free from defects and foreign materials.
INSTALLATION
1. Install O-ring to fuel tank without twisting.
2. Install the lock ring and fuel level sensor unit, fuel filter and fuel pump assembly using one of the following
methods.
LOCKING TAB STYLE
a. Install fuel level sensor unit, fuel filter and fuel pump assembly
with aligning mating marks (A) on fuel tank and fuel level sensor
unit as shown.
: FrontTool number : KV991J0090 (J-46214)
WBIA0284E
Tool number : — (J-38879-B)
PBIC0240E
PBIC4732E
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b.Turn the lock ring (1) until the lock ring is fully rotated into the
fuel tank lock tabs (A) as shown.
THREADED STYLE
a. Install fuel level sensor unit, fuel filter and fuel pump assembly to the fuel tank while aligning matching
marks added during removal.
b. Put matching marks (used for ti
ghtening the lock ring) on the surfaces of the lock ring and fuel tank.
i. Put a matching mark ( ) on top of the lock ring at the point on
the line extended from the thread (A) as shown.
ii. Put a matching mark ( ) at the point on the line extended
from the end point (A) of the radius of the fuel tank thread as
shown.
NOTE:
Matching marks must be visible after installing the lock ring.
iii. Put a matching mark ( ) for a tightening target point at 315
degrees from the matching mark( ) on the fuel tank.
NOTE:
• As a guide the angle formed by the lock ring bulges (A) is 30 degrees (a) and one formed by a bulge and the hole (B)
between bulges is 15 degrees (b).
• Figure shows fuel level sensor unit, fuel filter and fuel pump assembly side of fuel tank.
WBIA0783E
JSBIA0244ZZ
JSBIA0245ZZ
Tightening target point : 675 - 360 = 315 degrees
JSBIA0247ZZ
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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
c. Align the matching marks ( ) of lock ring and ( ) of the fuel
tank (See Step b.) to horizontally press and install lock ring (1).
NOTE:
• After aligning the matching marks, gradually turn the lock ring
counter clockwise and realign them to engage the lock ring
with the fuel tank screw.
• Figure shows fuel level sensor unit, fuel filter and fuel pump
assembly side of fuel tank.
d. Install the lock ring using Tool as shown.
• Tighten the lock ring (1) to the tightening target position ( ) marked at step b.
CAUTION:
After turning 360 degrees, lift the lock ring to check that it
is securely engaged with the thread.
NOTE:
Figure shows fuel level sensor unit fuel filter and fuel pump
assembly side of fuel tank.
e. Check that the matching marks ( ) of the lock ring and ( ) of
the fuel tank are aligned.
NOTE:
Figure shows fuel sensor unit, fuel filter and fuel pump assembly
side of the fuel tank.
3. Installation of the remaining components is in the reverse order of removal.
Quick Connector
Connect fuel feed tube quick connector using the following procedure.
1. Check the connection for damage or any foreign materials.
2. Align the connector with the tube, then insert the connector straight into the tube until a “click” sound is heard.
3. After connecting, make sure that the connec tion is secure using the following procedure.
• Visually confirm that the two retainer tabs are secured to the connector.
JSBIA0248ZZ
Tool number : — (J-38879-B)
PBIC0240E
Tightening target point : 675 degrees
JSBIA0249ZZ
JSBIA0250ZZ
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