Nissan Murano: Meter, Warning Lamp & Indicator :: Dtc/circuit Diagnosis / Fuel Level Sensor Signal Circuit

Nissan Murano (Z52) 2015-2024 Service Manual / Driver Information & Multimedia / Meter, Warning Lamp & Indicator :: Dtc/circuit Diagnosis / Fuel Level Sensor Signal Circuit

Component Function Check

COMBINATION METER INPUT SIGNAL

CONSULT

  1. Select “Data Monitor” mode of “METER/M&A”.

  2. Select “FUEL METER”.

  3. Compare the “FUEL METER” value and the fuel gauge reading of the combination meter. Fuel gauge and data monitor indications should be close.

    Combination meter Monitor item
    Fuel gauge

    FUEL METER [L]

    (Approx.)
    Full 70.6
    3/4 54.5
    1/2 38.3
    1/4 22.1
    Empty 8.6

Does the data monitor value approximately match the fuel gauge indication?

YES>>

Inspection End.

NO>>

Replace combination meter. Refer to Removal and Installation.

Diagnosis Procedure

CHECK HARNESS CONNECTOR

  1. Ignition switch OFF.

  2. Check combination meter and fuel level sensor unit and fuel pump (main) (fuel level sensor) terminals (meter-side and harness-side) for poor connection.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace terminals or connectors.

CHECK FUEL LEVEL SENSOR CIRCUIT

  1. Disconnect combination meter harness connector and fuel level sensor unit and fuel pump (main) (fuel level sensor) harness connector.

  2. Check continuity between combination meter harness connector and fuel level sensor unit and fuel pump (main) (fuel level sensor) harness connector.

    Fuel level sensor unit and fuel pump (main) (fuel level sensor) Combination meter Continuity
    Connector Terminal Connector Terminal
    B72 5 M23 48 Yes

  3. Check continuity between fuel level sensor unit and fuel pump (main) (fuel level sensor) harness connector and ground.

    Fuel level sensor unit and fuel pump (main) (fuel level sensor) — Continuity
    Connector Terminal
    B72 5 Ground No

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness or connector.

CHECK FUEL LEVEL SENSOR UNIT (MAIN-SUB) CIRCUIT

  1. Disconnect fuel level sensor unit (sub) harness connector.

  2. Check continuity between fuel level sensor unit and fuel pump (main) (fuel level sensor) harness connector and fuel level sensor unit (sub) harness connector.

    Fuel level sensor unit and fuel pump (main) (fuel level sensor) Fuel level sensor unit (sub) Continuity
    Connector Terminal Connector Terminal
    B72 2 B100 8 Yes

  3. Check continuity between fuel level sensor unit and fuel pump (main) (fuel level sensor) harness connector and ground.

    Fuel level sensor unit and fuel pump (main) (fuel level sensor) — Continuity
    Connector Terminal
    B72 2 Ground No

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness or connector.

CHECK FUEL LEVEL SENSOR UNIT (SUB) CIRCUIT

  1. Check continuity between combination meter harness connector and fuel level sensor unit (sub) harness connector.

    Fuel level sensor unit (sub) Combination meter Continuity
    Connector Terminal Connector Terminal
    B100 7 M23 54 Yes

  2. Check continuity between fuel level sensor unit (sub) harness connector and ground.

    Fuel level sensor unit (sub) — Continuity
    Connector Terminal
    B100 7 Ground No

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace harness or connector.

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. Refer to Removal and Installation.

Component Inspection

CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP (MAIN) (FUEL LEVEL SENSOR)

  1. Remove the fuel level sensor unit and fuel pump (main) (fuel level sensor). Refer to Removal and Installation.

  2. Check the resistance between fuel level sensor unit and fuel pump (main) (fuel level sensor) terminals.

    Fuel level sensor unit and fuel pump (main) (fuel level sensor) Condition

    Resistance (Ω)

    (Approx.)     		Height [mm (in)]
    Terminals
    2 5 Full* (A) 44 167 (6.6)
    Empty* (B) 137 19.8 (0.8)

    *: When float rod is in contact with stopper.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace fuel level sensor unit and fuel pump (main) (fuel level sensor). Refer to Removal and Installation.

CHECK FUEL LEVEL SENSOR UNIT (SUB)

  1. Remove the fuel level sensor unit (sub). Refer to Removal and Installation.

  2. Check the resistance between fuel level sensor unit (sub) terminals.

    Fuel level sensor unit (sub) Condition

    Resistance (Ω)

    (Approx.)     		Height [mm (in)]
    Terminals
    7 8 Full* (A) 7.0 187.9 (7.6)
    Empty* (B) 153 19.6 (0.8)

    *: When float rod is in contact with stopper.

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace fuel level sensor unit (sub). Refer to Removal and Installation.

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