fuel pump NISSAN LATIO 2007 Service Manual PDF

PRECAUTIONS
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To prevent serious burns:
Avoid contact with hot metal parts.
Do not remove the radiator cap when the engine is hot.

Dispose of or recycle drained oil or the solvent used for cleaning
parts in an appropriate manner.

Do not attempt to top off the fuel tank after the fuel pump nozzle
shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel
spray and possibly a fire.

Clean all disassembled parts in the designated liquid or solvent
prior to inspection or assembly.

Replace oil seals, gaskets, packings, O-rings, locking washers, cotter pins, self-locking nuts, etc. with new
ones.

Replace inner and outer races of tapered roller bearings and needle bearings as a set.

Arrange the disassembled parts in accordance with their assembled locations and sequence.

Do not touch the terminals of electrical components which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.

After disconnecting vacuum or air hoses, attach a tag to indicate the proper connection.

Use only the fluids and lubricants specified in this manual.

Use approved bonding agent, sealants or their equivalents when required.

Use hand tools, power tools (disassembly only) and recom-
mended special tools where specified for safe and efficient ser-
vice 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 cov-
ers.
Take caution that keys, buckles or buttons do not scratch paint.
WA RN ING:
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.
Precautions for Three Way CatalystEAS001ZB
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
necessary.
SGI233
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SGI234

GI-6
PRECAUTIONS
Revision: June 20062007 Versa

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.
Precautions for Fuel (Unleaded Regular Gasoline Recommended)EAS00209
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. Using a fuel
other than that specified could adversely affect the emission control devices and systems, and could
also affect the warranty coverage validity.
Precautions for Multiport Fuel Injection System or Engine Control SystemEAS001ZD

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
injectors, be sure to release fuel pressure.

Be careful not to jar components such as ECM and mass air
flow sensor.
Precautions for HosesEAS001ZE
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 inser-
tion length and orientation is correct. (If tube is equipped with
hose stopper, insert rubber hose into tube until it butts up
against hose stopper.)
SGI787
SM A01 9D
SM A02 0D

TERMINOLOGY
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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 switchPark/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 control module PCM ***
Programmable read only memory PROM ***
Pulsed secondary air injection control sole-
noid valvePAIRC 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
systemTWC + OC system ***
Throttle body TBThrottle 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 valveLock-up cancel solenoid
Lock-up solenoid NEW TERMNEW ACRONYM /
ABBREVIATIONOLD TERM

IDX-4
ALPHABETICAL INDEX
EC-398, EC-406
EVAP control system pressure sensor .... EC-382, EC-
385, EC-391
EVAP control system purge flow monitoring diagnosis
EC-340
EVAP vapor lines inspection ............................. MA-19
Evaporative emission (EVAP) system ............... EC-31
Evaporator ...................................................... MTC-90
Exhaust manifold .............................................. EM-21
Exhaust system inspection ................... MA-20, MA-22
Expansion valve .............................................. MTC-91
F
F/FOG - Wiring diagram ..................................... LT-43
F/PUMP - Wiring diagram ................................ EC-571
Final drive (FF M/T) ........................................... MT-22
Floor trim ............................................................. EI-37
Flow charts ......................................................... GI-27
Fluid temparature sensor (CVT) ...................... CVT-85
Fluid temperature sensor (A/T) ........................ AT-106
Fluids ................................................................ MA-11
Fluorescent leak detector ............................... MTC-92
Flywheel (clutch) ................................................ CL-13
Flywheel runout .............................................. EM-103
Fork rod (M/T) .................................................... MT-21
Freeze frame data ............................... EC-52, EC-116
Front bumper ...................................................... EI-14
Front door ......................................................... GW-43
Front passenger air bag .................................. SRS-46
Front seat belt ...................................................... SB-3
Front seat belt pre-tensioner ..... SB-2, SRS-3, SRS-51
Front washer ...................................................... WW-4
Front wiper ......................................................... WW-4
FTS - Wiring diagram ......................... AT-103, CVT-86
FTTS - Wiring diagram ...................... EC-293, EC-298
FUEL - Wiring diagram ...................... EC-278, EC-286
Fuel cut control (at no load high engine speed) . EC-26
Fuel gauge ............................................................ DI-5
Fuel injection system ......................... EC-276, EC-284
Fuel injector ..................................................... EC-564
Fuel injector and fuel tube ................................ EM-33
Fuel level sensor ................. EC-415, EC-417, EC-419
Fuel line inspection .................................. FL-4, MA-15
Fuel precautions ................................................... GI-6
Fuel pressure check .......................................... EC-81
Fuel pressure release ........................................ EC-81
Fuel pump ........................................................ EC-570
Fuel systemCommercial Service Tools ................ FL-3
Fuel systemPREPARATION ................................. FL-3
Fuel tank temperature sensor ............ EC-291, EC-297
Fuel tank vacuum relief valve ............................ EC-34
Fuse ................................................................... PG-16
Fuse and fusible link box ................................... PG-77
Fusible link ......................................................... PG-16
G
Gauges ................................................................. DI-5
Gear components (M/T) .................................... MT-18
Generic scan tool (GST) ................................. EC-126
Glass ...................................... GW-11, GW-43, GW-47
Grille - See Exterior ............................................. EI-19
Ground distribution ............................................ PG-30
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H/LAMP - Wiring diagram .................................... LT-8
H/PHON - Wiring diagram .................................. AV-52
Handling precautions for plastics ..................... BL-255
Harness connector ............................................ PG-68
Harness layout .................................................. PG-39
Hazard warning lamp ......................................... LT-51
Headlining - See Roof trim .................................. EI-39
Heated oxygen sensor 2 ..... EC-248, EC-257, EC-267
Heated oxygen sensor 2 heater ...................... EC-166
HEATER - Wiring diagram .............................. MTC-28
Heater system - Wiring diagram ..................... MTC-28
HFC134a (R134a) system precaution .............. MTC-4
HFC134a (R134a) system service procedure . MTC-80
HFC134a (R134a) system service tools ......... MTC-12
HFC134a system service equipment precaution MTC-9
HO2S2 - Wiring diagram ..... EC-251, EC-260, EC-270
HO2S2H - Wiring diagram .............................. EC-168
Horn ................................................................. WW-46
HORN - Wiring diagram ................................... WW-46
How to erase DTC for OBD system .................. EC-60
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IATS - Wiring diagram ..................................... EC-197
Idle air volume learning ..................................... EC-78
Idle speed ......................................................... EC-75
Idle speed control (ISC) .................... EC-423, EC-425
Ignition coil ...................................................... EC-576
Ignition control system .................................... EC-576
Ignition timing .................................................... EC-75
IGNSYS - Wiring diagram ............................... EC-577
ILL - Wiring diagram ......................................... LT-111
Illumination control ........................................... LT-108
In-cabin Microfilter ............................................. MA-20
INJECT - Wiring diagram ................................ EC-565
Input shaft (FF M/T) .......................................... MT-18
Input/Output signal of TCM ............................. CVT-25
Instrument panel ................................................. IP-10
INT/L - Wiring diagram ....................................... LT-96
Intake air temperature sensor ........... EC-195, EC-215
Intake door control linkage adjustment ........... MTC-69
Intake manifold .................................................. EM-18
Intake valve timing control .............................. EC-156
Intake valve timing control solenoid valve ....... EC-173
Interior ................................................................. EI-32
Interior lamp ....................................................... LT-91
IPDM (Intelligent power distribution module engine
room) ................................................................. PG-17
IVC - Wiring diagram ....................................... EC-174

PG-26
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: June 20062007 Versa
26 OTail lamp relay (park-
ing lamps)Output — Lighting switch in 2nd position Battery voltage
27 BRTail lamp relay (park-
ing lamps)Output — Lighting switch in 2nd position Battery voltage
28 GRTail lamp relay (park-
ing lamps)Output — Lighting switch in 2nd position Battery voltage
29 PTail lamp relay (park-
ing lamps)Output — Lighting switch in 2nd position Battery voltage
30 R Fuse 54 Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
31 LG Fuse 55 Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
32 LWiper high speed sig-
nalOutputON or
STARTWiper switchOFF, LO, INT 0V
HI Battery voltage
33 YWiper low speed sig-
nalOutputON or
STARTWiper switchOFF 0V
LO or INT Battery voltage
35 BRStarter relay (inhibit
switch)InputON or
STARTSelector lever in "P" or "N"
(CVT or A/T) or clutch pedal
depressed (M/T)Battery voltage
Selector lever any other posi-
tion (CVT or A/T) or clutch
pedal released (M/T)0V
36 BR Fuel pump relay Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
37 G Oil pressure switch InputON or
STARTEngine running and oil pres-
sure within specificationBattery voltage
Engine not running or oil
pressure below specification0V
38 R Wiper auto stop signal InputON or
STARTWipers not in park position Battery voltage
Wipers in park position 0V
39 B Ground Input — — 0V
40 P CAN-L — ON — —
41 L CAN-H — ON — —
45 R Horn relay control Input —Horn switch PUSHED, alarm
switch activated or door lock/
unlock is confirmed when
operating lock system via the
keyfob0V
Horn switch released, alarm
not active, keyfob not activeBattery voltage
46 YThrottle control motor
relay controlInput —Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
47 GRFuel pump relay con-
trolInput —Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition

PG-52
HARNESS
Revision: June 20062007 Versa
D3 B100 GR/5 : Fuel level sensor unit and fuel pump
G5 B101 W/16 : To M12
G5 B102 W/24 : To M13
F3 B103 B/2 : Console power socket
A4 B104 GR/3: EVAP control system pressure sen-
sor
A3 B105 B/2 : EVAP canister vent control valve
G5 B106 W/4 : To M11
A2 B107 BR/6 : Rear combination lamp RH
E4 B108 W/3 : Front door switch RH
F4 B109 Y/2 : Front RH side air bag module
F4 B110 W/10 : To B300
E5 B111 Y/2 : RH side air bag (satellite) sensor
F4 B112 W/3 : Seat belt buckle switch RH
F3 B113 Y/12 : Air bag diagnosis sensor unit
E4 B114 — : Body ground
E4 B115 Y/2 : Front RH seat belt pre-tensioner
C3 B116 W/1 : Rear door switch RH
E3 B117 — : Body ground
B2 B118 Y/2 : RH side curtain air bag module
D3 B119 W/8 : To D301
G5 B120 W/24 : To M14
A3 B121 W/32 : Bluetooth control unit
A3 B122 GR/1 : Bluetooth control unit
D2 B123 B/2 : Rear wheel sensor LH
C3 B124 B/2 : Rear wheel sensor RH
F3 B125 GR/2 : Front console antenna
C3 B126 GR/2 : Rear floor antenna
A2 B132 — : Body ground
B2 B133 W/2 : To D400
A2 B134 W/12 : To D401
E5 B138 B/3 : Belt tension sensor

HARNESS
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Wiring Diagram Codes (Cell Codes)EKS00IW9
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
Code Section Wiring Diagram Name
ABS BRC Anti-lock Brake System
A/C,M MTC Manual Air Conditioner
APPS1 EC Accelerator Pedal Position Sensor
A/F EC Air Fuel Ratio Sensor 1
A/FH EC Air Fuel Ratio Sensor 1 Heater
APPS2 EC Accelerator Pedal Position Sensor
APPS3 EC Accelerator Pedal Position Sensor
ASC/BS EC ASCD Brake Switch
ASC/SW EC ASCD Steering Switch
ASCBOF EC ASCD Brake Switch
ASCIND EC ASCD Indicator
AT/IND DI A/T Indicator Lamp
AUDIO AV Audio
BACK/L LT Back-up Lamp
BA/FTS AT A/T Fluid Temperature Sensor and TCM Power Supply
BRK/SW EC Brake Switch
CAN AT CAN Communication Line
CAN CVT CAN Communication Line
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
COOL/F EC Cooling Fan Control
COMBSW LT Combination Switch
CVTIND DI CVT Indicator Lamp
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
DTRL LT Headlamp - With Daytime Light System
ECTS EC Engine Coolant Temperature Sensor
ENGSS AT Engine Speed Signal
EPS STC Electronic Controlled Power Steering
ETC1 EC Electric Throttle Control Function
ETC2 EC Throttle Control Motor Relay
ETC3 EC Throttle Control Motor
F/FOG LT Front Fog Lamp
F/PUMP EC Fuel Pump
FTS AT A/T Fluid Temperature Sensor
FTS CVT CVT Fluid Temperature Sensor Circuit
FTTS EC Fuel Tank Temperature Sensor
FUEL EC Fuel Ignition System Function
HEATER MTC Heater System
H/LAMP LT Headlamp
H/PHON AV Hands Free Telephone
HORN WW Horn
HO2S2 EC Heated Oxygen Sensor 2
HO2S2H EC Heated Oxygen Sensor 2 Heater
IATS EC Intake Air Temperature Sensor

SC-20
STARTING SYSTEM
Revision: June 20062007 Versa
DIAGNOSTIC PROCEDURE 1
Check Starter Motor Circuit
1. CHECK POWER SUPPLY TO STARTER MOTOR
1. Remove the fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
3. Turn the ignition switch OFF.
4. Check that the starter motor connector F27 connection is clean and tight.
5. Check voltage between starter motor connector F27 terminal B
and ground using a digital circuit tester.
OK or NG
OK >> GO TO 2.
NG >> Check harness between the battery and the starter
motor for open circuit.
2. CHECK VOLTAGE DROP ON STARTER MOTOR CIRCUIT
1. Check voltage between starter motor connector F27 terminal B
and battery positive terminal using a digital circuit tester.
OK or NG
OK >> GO TO 3.
NG >> Check harness between the battery and the starter
motor for poor continuity.
3. CHECK VOLTAGE DROP ON STARTER MOTOR GROUND CIRCUIT
1. Check voltage between starter motor case and battery negative
terminal using a digital circuit tester.
OK or NG
OK >> Starter motor ground circuit is OK. Further inspection is
necessary. Refer to SC-19, "
WORK FLOW" .
NG >> Check harness between the starter motor case and
ground for poor continuity. Battery voltage should exist
WKIA0137E
Ignition switch in
START: Less than 0.2V
WKIA0138E
Ignition switch in
START: Less than 0.2V
WKIA0139E

STARTING SYSTEM
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DIAGNOSTIC PROCEDURE 2
Check Magnetic Switch Circuit
1. CHECK POWER SUPPLY TO MAGNETIC SWITCH
1. Remove the fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
3. Turn the ignition switch OFF.
4. Disconnect starter motor connector F28.
5. Check voltage between starter motor connector F28 terminal S
and ground using a digital circuit tester.
OK or NG
OK >> GO TO 2.
NG >> Check the following:

40A fusible link (letter h , located in fuse and fusible
link box)

10A fuse (No. 49, M/T models, located in the IPDM E/
R)

15A fuse (No. 52, located in the IPDM E/R)

20A fuse (No. 53, located in the IPDM E/R)

PNP switch, clutch interlock switch or TCM depending on equipment

Ignition switch

Ignition relay IPDM E/R

Starter relay IPDM E/R

Starter relay request ON signal from BCM

Harness for open or short circuit
2. CHECK VOLTAGE DROP ON MAGNETIC SWITCH CIRCUIT
1. Connect starter motor connector F28.
2. Check voltage between starter motor connector F28 terminal S
and battery positive terminal using a digital circuit tester.
OK or NG
OK >> Magnetic switch circuit is OK. Further inspection is nec-
essary. Refer to SC-19, "
WORK FLOW" .
NG >> Check harness, components and connections between
the battery and the magnetic switch for poor continuity. Ignition switch in
START: Battery voltage
WKIA5243E
Ignition switch in
START: Less than 1V
WKIA5244E