sensor NISSAN LATIO 2009 Service Repair Manual

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FUEL LEVEL SENSOR UNIT, FUEL FI
LTER AND FUEL PUMP ASSEMBLY
Component INFOID:0000000004305256
Removal and Installation INFOID:0000000004305257
REMOVAL WARNING:
Be sure to read “General Precautions” be fore working on the fuel system. Refer to FL-4, " 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-9 .
c. Insert fuel tubing into fuel tank through fuel 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-574, " Fuel Pressure Check " .
4. Remove rear seat bottom. Refer to SE-15 .
5. Turn the four retainers 90 ° in a clockwise direction and remove the fuel pump inspection hole cover.
1. Lock ring 2. Fuel level sensor unit, fuel filter and fuel pump assembly 3. O-ring
4. Fuel tank

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Make sure that the fuel level sensor
unit, fuel filter and fuel pump is free from defects and foreign materials.
INSTALLATION Installation is in the reverse order of removal.
Fuel Level Sensor Unit, Fuel Filter and Fuel Pump Assembly 1. Install O-ring to fuel tank without twisting.
2. Install fuel level sensor unit with aligning mating marks (A) on fuel tank and fuel level sensor unit as shown.
• ⇐ : Front
• Turn the lock ring (1) until the lock ring is fully rotated into the fuel tank lock tabs (A) as shown.
Quick Connector Connect fuel feed tube qui ck 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 c onnector straight into the tube until a “click” sound is
heard.
3. After connecting, make sure that the connection is secure using the following procedure. • Visually confirm that the two retainer tabs are secured to the connector.
• Pull the tube and the connector to make sure they are securely connected.
4. Connect electrical harness connector.
Inspection Hole Cover • Before installing inspection hole cover, confirm that there are no fuel leaks. Refer to "INSPECTION AFTER
INSTALLATION" .
1. Install inspection hole cover with the front mark (arrow) facing front of vehicle.
2. Lock clips by turning counterclockwise.
INSPECTION AFTER INSTALLATION Use the following procedure to check for fuel leaks. WBIA0783E
PBIC1653E

FRONT SUSPENSION ASSEMBLY
FSU-11
< SERVICE INFORMATION >
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Removal and Installation
INFOID:0000000004305866
REMOVAL 1. Separate intermediate shaft from steering gear pinion shaft. Refer to PS-9, " Removal and Installation " .
2. Remove front tires from vehicle using a power tool.
3. Remove wheel sensor from steering knuckle. Refer to BRC-32 .
CAUTION:
Do not pull on wheel sensor harness.
4. Remove the nut on the upper side of stabilizer connecting rod (1) with a power tool, and then remove stabilizer connecting rod
(1) from strut assembly.
5. Loosen steering outer socket (1) nut.
6. Remove steering outer socket (1) from steering knuckle (2) so as not to damage ball joint boot (3) using Tool.
CAUTION:
Temporarily tighten the nut to prevent damage to threads
and to prevent the Tool fr om suddenly coming off.
7. Remove rear torque rod. Refer to EM-195, " Component " .
8. Remove transverse link ball joint nut and bolt. Then, remove transverse link from steering knuckle.
9. Set jack under front suspension member.
10. Remove upper side bolts of upper link.
11. Remove the bolts of member stay, and then remove member stay from vehicle.
12. Gradually lower a jack to remove front suspension assembly.
INSTALLATION Installation is in the reverse order of removal.
• For tightening torque, refer to FSU-10, " Component " .
• Perform final tightening of each of parts (rubber bushing), under unladen conditions, which were removed when removing front suspension assembly. Check wheel alignment. Refer to FSU-7, " Wheel Alignment
Inspection " .
• Check wheel sensor harness for proper connection. Refer to BRC-32 .
13. Upper link (right) 14. Front suspension member 15. Member stay
16. Cap Front SGIA1297E
Tool number : HT72520000 (J-25730-A)
SGIA1298E

FSU-12< SERVICE INFORMATION >
COIL SPRING AND STRUT
COIL SPRING AND STRUT
Removal and Installation INFOID:0000000004305867
REMOVAL
1. Remove cowl top panel. Refer to EI-22, " Removal and Installation " .
2. Remove front tires using power tool.
3. Remove harness of wheel sensor from strut assembly. Refer to BRC-32, " Removal and Installation " .
CAUTION:
Do not pull on wheel sensor harness.
4. Remove brake hose lock plate. Refer to BR-12, " Rear Brake Tube and Hose " .
5. Remove the nut on the upper side of stabilizer c onnecting rod using power tool, and then remove stabi-
lizer connecting rod from strut assembly.
6. Remove nuts and bolts, and then remove steering knuckle from strut assembly. Refer to FSU-10, " Component " .
7. Remove the strut mounting insulator bolts, then remove strut assembly.
INSTALLATION
Installation is in the reverse order of removal.
• For tightening torque, refer to FSU-10, " Component " .
• Perform final tightening of bolts and nuts at the strut assembly lower side (rubber bushing) under unladen
conditions with tires on level ground. Check wheel alignment. Refer to FSU-7, " Wheel Alignment Inspection "
.
• Check wheel sensor harness for proper connection. Refer to BRC-32 .
• Attach strut mounting insulator as shown.
Disassembly and Assembly INFOID:0000000004305868
DISASSEMBLY
CAUTION:
Do not damage strut piston rod when removing components from strut assembly. WEIA0179E
MEIA0014E

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(i.e. Flexible Fuel Vehicle - FFV models). Using a fu
el other than that specified could adversely affect
the emission control devices and systems, and could also affect the warranty coverage validity.
Precaution for Multiport Fuel Inject ion System or Engine Control System INFOID:0000000004307350
• Before connecting or disconnecti ng 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 Hoses INFOID:0000000004307351
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. SMA019D
SMA021D

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SYMBOLS
How to Follow Trouble Diagnosis INFOID:0000000004307360
DESCRIPTION NOTICE:
Trouble diagnoses indicate work procedures required to diagnose problems effectively. Observe the following
instructions before diagnosing.
1. Before performing trouble diagno ses, read the “Preliminary Check” , the “Symptom Chart” or the
“Work Flow”.
2. After repairs, re-check that the prob lem has been completely eliminated.
1. Union bolt 2. Copper washer 3. Brake hose
4. Cap 5. Bleed valve 6. Sliding pin bolt
7. Piston seal 8. Piston 9. Piston boot
10. Cylinder body 11. Sliding pin 12. Torque member mounting bolt
13. Washer 14. Sliding pin boot 15. Bushing
16. Torque member 17. Inner shim cover 18. Inner shim
19. Inner pad 20. Pad retainer 21. Pad wear sensor
22. Outer pad 23. Outer shim 24. Outer shim cover 1: PBC (Poly Butyl Cuprysil) grease
or silicone-based grease 2: Rubber grease : Brake fluid
Refer to GI section for additional symbol definitions.

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CONSULT-III CHECKING SYSTEM
Description INFOID:0000000004307366
• 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 contro l 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 Application INFOID:0000000004307367
x: Applicable.
*1: If equipped.
*2: With automatic transmission (A/T).
*3: With continuously variable transmission (CVT).
*4: With security card installed. Diagnostic test mode FunctionENGINE
ABS* 1
AIR BAG EPS
IPDM E/R BCM
METER/M&A
INTELLIGENT KEY* 1
TRANSMISSION* 2
TRANSMISSION* 3
Work support This mode enables a technician to adjust some devices faster and
more accurately by following indications on CONSULT-III. x - - - - x - x x x
Self-diagnostic results Self-diagnostic results can be read and erased quickly. x x x x x x x x x x
Trouble diagnostic record Current 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. x x x x x x x x x x
CAN diagnostic support
monitor The communication condition of CAN communication line can be
read. x x - x x x x x x x
Calibration data* 2
Shows unit calibration IDs, offsets and gains. This data is stored in
the ECU memory. - - - - - - - - - x
Active test Diagnostic Test Mode in which CONSULT-III drives actuators apart
from ECU shifting some parameters in a specified range. x x - - x x - x - -
Function test This mode can show results of self-diagnosis of ECU with either
"OK" or "NG". For engines, more practical tests regarding sensors/
switches and/or actuators are available. x x x - - - - - x x
DTC & SRT confirmation The results of SRT (System Readiness Test) and the self-diagno-
sis status/result can be confirmed. x - - - - - - - x -
DTC work support The 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 - - - -
Control unit initialization *4
All registered ignition key IDs in NATS components can be initial-
ized and new IDs can be registered. - - - - - x - - - -
PIN Read *4
This mode enables technician to get BCM-specific 5-digit code. - - - - - x - - - -

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TERMINOLOGY
SAE J1930 Terminology List INFOID:0000000004307379
All emission related terms used in this publication in accordance with SAE J1930 are listed. Accordingly, new
terms, new acronyms/abbreviations and old terms are listed in the following chart.
NEW TERM NEW ACRONYM /
ABBREVIATION OLD TERM
Air cleaner ACL Air cleaner
Barometric pressure BARO ***
Barometric pressure se nsor-BCDD BAROS-BCDD BCDD
Camshaft position CMP ***
Camshaft position sensor CMPS Crank angle sensor
Canister *** Canister
Carburetor CARB Carburetor
Charge air cooler CAC Intercooler
Closed loop CL Closed loop
Closed throttle position switch CTP switch Idle switch
Clutch pedal position switch CPP switch Clutch switch
Continuous fuel injection system CFI system ***
Continuous trap oxidizer system CTOX system ***
Crankshaft position CKP ***
Crankshaft position sensor CKPS ***
Data link connector DLC ***
Data link connector fo r CONSULT-III DLC for CONSULT-III Di agnostic connector for CONSULT-III
Diagnostic test mode DTM Diagnostic mode
Diagnostic test mode selector DTM selector Diagnostic mode selector
Diagnostic test mode I DTM I Mode I
Diagnostic test mode II DTM II Mode II
Diagnostic trouble code DTC Malfunction code
Direct fuel injection system DFI system ***
Distributor ignition system DI system Ignition timing control
Early fuel evaporation-mixture heater EFE-mixture heater Mixture heater
Early fuel evaporation system EFE system Mixture heater control
Electrically erasable programmable read
only memory EEPROM ***
Electronic ignition system EI system Ignition timing control
Engine control EC ***
Engine control module ECM ECCS control unit
Engine coolant temperature ECT Engine temperature
Engine coolant temperature sensor ECTS Engine temperature sensor
Engine modification EM ***
Engine speed RPM Engine speed
Erasable programmable read only memory EPROM ***
Evaporative emission canister EVAP canister Canister
Evaporative emission system EVAP system Canister control solenoid valve
Exhaust gas recirculation valve EGR valve EGR valve

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Nonvolatile random access memory NVRAM ***
On board diagnostic system OBD system Self-diagnosis
Open loop OL Open loop
Oxidation catalyst OC Catalyst
Oxidation catalytic converter system OC system ***
Oxygen sensor O2S Exhaust gas sensor
Park position switch *** Park switch
Park/neutral position switch PNP switch Park/neutral switch
Inhibitor switch
Neutral position switch
Periodic trap oxidizer system PTOX system ***
Positive crankcase ventilation PCV Positive crankcase ventilation
Positive crankcase ventilation valve PCV valve PCV valve
Powertrain cont rol module PCM ***
Programmable read only memory PROM ***
Pulsed secondary air injection control sole-
noid valve PAIRC solenoid valve AIV control solenoid valve
Pulsed secondary air injection system PAIR system Air induction valve (AIV) control
Pulsed secondary air injection valve PAIR valve Air induction valve
Random access memory RAM ***
Read only memory ROM ***
Scan tool ST ***
Secondary air injection pump AIR pump ***
Secondary air injection system AIR system ***
Sequential multiport fuel injection system SFI system Sequential fuel injection
Service reminder indicator SRI ***
Simultaneous multiport fuel injection sys-
tem *** Simultaneous fuel injection
Smoke puff limiter system SPL system ***
Supercharger SC ***
Supercharger bypass SCB ***
System readiness test SRT ***
Thermal vacuum valve TVV Thermal vacuum valve
Three way catalyst TWC Catalyst
Three way catalytic converter system TWC system ***
Three way + oxidation catalyst TWC + OC Catalyst
Three way + oxidation catalytic converter
system TWC + OC system ***
Throttle body TB Throttle chamber
SPI body
Throttle body fuel injection system TBI system Fuel injection control
Throttle position TP Throttle position
Throttle position sensor TPS Throttle sensor
Throttle position switch TP switch Throttle switch
Torque converter clutch solenoid valve TCC solenoid valve Lock-up cancel solenoid
Lock-up solenoid
NEW TERM
NEW ACRONYM /
ABBREVIATION OLD TERM

Removal and Installation " .
13. Remove instrument lower finisher. : Metal clip
: Pawl
a. Disengage pawls and remove fuse block lid.
b. Remove the screws.
c. Pull backward while disengaging the instrument lower finisher clip and pawls.
d. Disconnect in-vehicle sensor and harness connector, and then remove instrument lower finisher.
14. Remove glove box. Refer to IP-23, " Disassembly and Assembly " .
15. Remove side ventilator assembly. : Metal clip
: Pawl
a. Insert a suitable tool into the side ventilator assembly from cen- ter console side, disengage the clips and pawl of instrument
panel pad. PIIB2880E
PIIB3977E