2007 NISSAN LATIO fuel pump

COMBINATION METERS
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COMBINATION METERSPFP:24814
Component Parts and Harness Connector LocationEKS00IAP
System DescriptionEKS00I05
UNIFIED METER CONTROL UNIT

Speedometer, odo/trip meter, tachometer and fuel gauge are controlled by the unified meter control unit,
which is built into the combination meter.

Warning and indicator lamps are controlled by signals drawn from the CAN communication system, BCM
(body control module), and components connected directly to the combination meter.

Odo/trip meter and A/T indicator (with A/T) or CVT indicator (with CVT) segments can be checked in self-
diagnosis mode.

Meters/gauges can be checked in self-diagnosis mode.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times

through 10A fuse [No. 13, located in the fuse block (J/B)]

to combination meter terminal 27.
With the ignition switch in the ON or START position, power is supplied

through 10A fuse [No. 14, located in the fuse block (J/B)]

to combination meter terminal 28.
Ground is supplied

to combination meter terminals 21, 22 and 23
1. Combination meter M24 2. ECM E16 3. ABS actuator and electric unit (con-
trol unit) E33
4. Fuel level sensor unit and fuel pump
(fuel level sensor) B100 (view with
rear seat and inspection hole cover
removed)
(⇐: Front)5. Vehicle speed sensor F41 (A/T
shown, M/T similar)6. TCM E31 (view with instrument
lower finisher removed)
WKIA5450E

DI-6
COMBINATION METERS
Revision: June 20062007 Versa

through grounds M57 and M61.
SPEEDOMETER
With ABS
The ABS actuator and electric unit (control unit) provides a vehicle speed signal to the combination meter via
CAN communication lines.
Without ABS or CVT
The vehicle speed sensor provides a vehicle speed signal to the combination meter for speedometer indica-
tion.
With CVT, Without ABS
The TCM provides a vehicle speed signal to the combination meter via CAN communication lines.
TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm). The ECM provides an engine speed
signal to combination meter via CAN communication lines.
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.
The fuel gauge is regulated by the unified meter control unit and a variable resistor signal supplied

to combination meter terminal 24

through fuel level sensor unit and fuel pump terminal 5

through fuel level sensor unit and fuel pump terminal 2

from combination meter terminal 6.
ODO/TRIP METER
The vehicle speed signal and the memory signals from the meter memory circuit are processed by the combi-
nation meter and the mileage is displayed.
How to Change the Display
Refer to Owner's Manual for odo/trip meter operating instructions.
CAN COMMUNICATION SYSTEM DESCRIPTION
Refer to LAN-4, "SYSTEM DESCRIPTION" .
WKIA5370E
SKIB6904E

COMBINATION METERS
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3. CHECK FUEL LEVEL SENSOR UNIT CIRCUIT
1. Disconnect combination meter connector and fuel level sensor
unit connector.
2. Check continuity between combination meter harness connector
(A) and fuel level sensor unit and fuel pump harness connector
(B).
3. Check continuity between combination meter harness connector
(A) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK FUEL LEVEL SENSOR UNIT GROUND CIRCUIT
1. Check continuity between combination meter harness connector
(A) and fuel level sensor unit and fuel pump harness connector
(B).
2. Check continuity between combination meter harness connector
(A) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK FUEL LEVEL SENSOR UNIT
Check fuel level sensor unit. Refer to DI-23, "
FUEL LEVEL SENSOR UNIT CHECK" .
OK or NG
OK >> Check fuel level sensor unit installation, and check whether the float arm interferes or binds with
any of the internal components in the fuel tank. Repair or replace malfunctioning part, if neces-
sary.
NG >> Replace fuel level sensor unit.
AB
Continuity
Connector Terminal Connector Terminal
M24 6 B100 2 Yes
A
GroundContinuity
Connector Terminal
M24 6 No
WKIA5454E
AB
Continuity
Connector Terminal Connector Terminal
M24 24 B100 5 Yes
A
GroundContinuity
Connector Terminal
M24 24 No
WKIA5455E

COMBINATION METERS
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Electrical Components InspectionEKS00I0M
FUEL LEVEL SENSOR UNIT CHECK
For removal, refer to FL-5, "Removal and Installation" .
Check Fuel Level Sensor Unit and Fuel Pump
Check resistance between terminals 2 and 5.
1* and 2*: When float rod is in contact with stopper.
Check Fuel Level Sensor Unit and Fuel Pump Harness
Check continuity at the following terminals.

If the results of check are NG, replace fuel pump assembly. If the
results of check are OK, replace fuel level sensor unit.
Removal and Installation EKS00I0N
COMBINATION METER
Refer to IP-19, "COMBINATION METER" .
Terminals Float position mm (in)Resistance
value (Ω)
(Approx.)
251* Full 160 (8.07) 6
2* Empty 20 (1.02) 80
WKIA5456E
Terminal Continuity
2 - Signal terminal (A)
Ye s
5 - Ground terminal (B)
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Revision: June 20062007 Versa Component Description ........................................ 564
CONSULT-II Reference Value in Data Monitor Mode
. 564
Wiring Diagram .................................................... 565
Diagnostic Procedure ........................................... 566
Component Inspection ......................................... 569
Removal and Installation ...................................... 569
FUEL PUMP ........................................................... 570
Description ........................................................... 570
CONSULT-II Reference Value in Data Monitor Mode
. 570
Wiring Diagram .................................................... 571
Diagnostic Procedure ........................................... 572
Component Inspection ......................................... 575
Removal and Installation ...................................... 575
IGNITION SIGNAL .................................................. 576
Component Description ........................................ 576
Wiring Diagram .................................................... 577
Diagnostic Procedure ........................................... 580
Component Inspection ......................................... 584
Removal and Installation ...................................... 585REFRIGERANT PRESSURE SENSOR ..................586
Component Description ........................................586
Wiring Diagram .....................................................587
Diagnostic Procedure ...........................................588
Removal and Installation ......................................591
MIL AND DATA LINK CONNECTOR ......................592
Wiring Diagram .....................................................592
SERVICE DATA AND SPECIFICATIONS (SDS) ....594
Fuel Pressure .......................................................594
Idle Speed and Ignition Timing .............................594
Calculated Load Value ..........................................594
Mass Air Flow Sensor ...........................................594
Intake Air Temperature Sensor .............................594
Engine Coolant Temperature Sensor ...................594
Air Fuel Ratio (A/F) Sensor 1 Heater ....................594
Heated Oxygen sensor 2 Heater ..........................594
Crankshaft Position Sensor (POS) .......................594
Camshaft Position Sensor (PHASE) ....................595
Throttle Control Motor ...........................................595
Fuel Injector ..........................................................595
Fuel Pump ............................................................595

PRECAUTIONS
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Do not operate fuel pump when there is no fuel in lines.

Tighten fuel hose clamps to the specified torque.
–Fuel level sensor unit and fuel pump (1)
–Fuel pressure regulator (2)
–Fuel level sensor (3)
–Fuel tank temperature sensor (4)

Do not depress accelerator pedal when starting.

Immediately after starting, do not rev up engine unneces-
sarily.

Do not rev up engine just prior to shutdown.

When installing C.B. ham radio or a mobile phone, be sure
to observe the following as it may adversely affect elec-
tronic control systems depending on installation location.
–Keep the antenna as far as possible from the electronic
control units.
–Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Do not let them run parallel for a long distance.
–Adjust the antenna and feeder line so that the standing-
wave radio can be kept smaller.
–Be sure to ground the radio to vehicle body.
BBIA0704E
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EVAPORATIVE EMISSION SYSTEM
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EVAP SERVICE PORT
Positive pressure is delivered to the EVAP system through the EVAP
service port. If fuel vapor leakage in the EVAP system occurs, use a
leak detector to locate the leak.
Removal and InstallationUBS00QBA
EVAP CANISTER
Tighten EVAP canister as shown in the figure.
EVAP CANISTER VENT CONTROL VALVE
1. Turn EVAP canister vent control valve counterclockwise.

Lock (A)

Unlock (B)
2. Remove the EVAP canister vent control valve.
Always replace O-ring with a new one.
How to Detect Fuel Vapor LeakageUBS00QBB
CAUTION:

Never use compressed air or a high pressure pump.

Do not exceed 4.12 kPa (0.042 kg/cm2 , 0.6 psi) of pressure in EVAP system.
NOTE:

Do not start engine.

Improper installation of EVAP service port adapter to the EVAP service port may cause a leak.
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PBIB1214E
PBIB3091E

EC-38Revision: June 2006
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
2007 Versa
ON BOARD REFUELING VAPOR RECOVERY (ORVR)PFP:00032
System DescriptionUBS00QBC
From the beginning of refueling, the air and vapor inside the fuel tank go through refueling EVAP vapor cut
valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by the EVAP canister and the air is
released to the atmosphere.
When the refueling has reached the full level of the fuel tank, the refueling EVAP vapor cut valve is closed and
refueling is stopped because of auto shut-off. The vapor which was absorbed by the EVAP canister is purged
during driving.
WAR NIN G:
When conducting inspections below, be sure to observe the following:

Put a “CAUTION: FLAMMABLE” sign in workshop.

Do not smoke while servicing fuel system. Keep open flames and sparks away from work area.

Be sure to furnish the workshop with a CO2 fire extinguisher.
CAUTION:

Before removing fuel line parts, carry out the following procedures:
–Put drained fuel in an explosion-proof container and put lid on securely.
–Release fuel pressure from fuel line. Refer to EC-81, "FUEL PRESSURE RELEASE" .
–Disconnect negative battery cable.

Always replace O-ring when the fuel gauge retainer is removed.

Do not kink or twist hose and tube when they are installed.

Do not tighten hose and clamps excessively to avoid damaging hoses.

After installation, run engine and check for fuel leaks at connection.

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.
PBIB1387E