2007 NISSAN TIIDA fuel tank removal

MWI
FUEL LEVEL SENSOR SIGNAL CIRCUIT
MWI-29
< COMPONENT DIAGNOSIS >
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FUEL LEVEL SENSOR SIGNAL CIRCUIT
DescriptionINFOID:0000000001374693
The fuel level sensor unit and fuel pump detects the approximate fuel level in the fuel tank and transmits the
fuel level signal to the combination meter.
Component Function CheckINFOID:0000000001374694
1.COMBINATION METER INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. Using “FUEL METER” of “DATA MONITOR”, compare the value of DATA MONITOR with fuel gauge
pointer of combination meter.
Does the data monitor value approximately match the fuel gauge indication?
YES >> Inspection End.
NO >> Replace combination meter. Refer to MWI-94, "
Removal and Installation".
Diagnosis ProcedureINFOID:0000000001374695
1.CHECK HARNESS CONNECTOR
1. Turn ignition switch OFF.
2. Check combination meter and fuel level sensor unit terminals (meter-side and harness-side) for poor con-
nection.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace terminals or connectors.
2.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.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair harness or connector.
Fuel gauge pointer Reference value of data monitor [lit.]
Full Approx. 49
3/4 Approx. 34
1/2 Approx. 22
1/4 Approx. 10
Empty Approx. 4
AB
Continuity
Connector Terminal Connector Terminal
M24 6 B40 2 Yes
A
GroundContinuity
Connector Terminal
M24 6 No
WKIA6018E

MWI-30
< COMPONENT DIAGNOSIS >
FUEL LEVEL SENSOR SIGNAL CIRCUIT
3.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.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair harness or connector.
4.CHECK INSTALLATION CONDITION
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.
Is the inspection result normal?
YES >> Inspection End.
NO >> Install the fuel level sensor unit properly.
Component InspectionINFOID:0000000001374696
1.REMOVE FUEL LEVEL SENSOR UNIT
Remove the fuel level sensor unit. Refer to FL-8, "
Removal and Installation".
>> GO TO 2
2.CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP
Check the resistance between terminals 2 and 4.
*1 and *2: When float arm is in contact with stopper.
Is inspection result normal?
YES >> Inspection End.
NO >> Replace fuel level sensor unit and fuel pump. Refer to
FL-8, "
Removal and Installation".
AB
Continuity
Connector Terminal Connector Terminal
M24 24 B40 4 Yes
A
GroundContinuity
Connector Terminal
M24 24 No
WKIA6019E
Te r m i n a lFloat position
mm (in)Resistance value
(Approx.)
24*1 Full 160 (8.07) 6Ω
*2 Empty 20 (1.02) 80Ω
WKIA6020E

MWI
THE FUEL GAUGE POINTER DOES NOT MOVE
MWI-87
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
THE FUEL GAUGE POINTER DOES NOT MOVE
DescriptionINFOID:0000000001374712
Fuel gauge needle will not move from a certain position.
Diagnosis ProcedureINFOID:0000000001374713
1.CHECK COMBINATION METER INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. Using “FUEL METER” of “DATA MONITOR”, compare the monitor value with the fuel gauge reading on
the combination meter. Refer to MWI-29, "
Component Function Check".
Does monitor value match fuel gauge reading?
YES >> GO TO 2
NO >> Replace combination meter. Refer to MWI-94, "
Removal and Installation".
2.CHECK FUEL LEVEL SENSOR SIGNAL CIRCUIT
Check the fuel level sensor signal circuit. Refer to MWI-29, "
DiagnosisProcedure".
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK FUEL LEVEL SENSOR UNIT
Perform a unit check for the fuel level sensor unit. Refer to MWI-30, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace fuel level sensor unit and fuel pump. Refer to FL-8, "
Removal and Installation".
4.CHECK FLOAT INTERFERENCE
Check that the float arm does not interfere or bind with any of the components in the fuel tank.
Is the inspection result normal?
YES >> Replace combination meter. Refer to MWI-94, "Removal and Installation".
NO >> Repair or replace malfunctioning parts.

PRECAUTIONS
RSU-3
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001724583
The Supplemental Restraint System such as “AIR 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 whether 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 inoperative, 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 unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
 Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Rear SuspensionINFOID:0000000001724584
 When installing the rubber bushings, the final tightening must be done under unladen condition and with the
tires on level ground. Oil will shorten the life of the rubber bushings, so wipe off any spilled oil immediately.
 Unladen condition means the fuel tank, engine coolant and lubricants are at the full specification. The spare
tire, jack, hand tools, and mats are in their designated positions.
 After installing suspension components, check the wheel alignment.
 Caulking nuts are not reusable. Always use new caulking nuts for installation. New caulking nuts are pre-
oiled, do not apply any additional lubrication.