Nissan Maxima Service and Repair Manual: Fuel level sensor signal circuit

Description

The fuel level sensor unit and fuel pump (fuel level sensor) detects the approximate fuel level in the fuel tank and transmits the fuel level signal to the combination meter.

Component Function Check

1.COMBINATION METER INPUT SIGNAL

  1.  Select "METER/M&A" on CONSULT.

  2.  Using "FUEL METER" of "DATA MONITOR", compare the value of DATA MONITOR with fuel gauge pointer of combination meter.

Diagnosis Procedure

Regarding Wiring Diagram information, refer to MWI-87, "Wiring Diagram".

1.CHECK HARNESS CONNECTOR

  1.  Turn ignition switch OFF.

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

2.CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP (FUEL LEVEL SENSOR) CIRCUIT

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

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

3. Check continuity between combination meter harness connector (A) and ground.

3.CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP (FUEL LEVEL SENSOR) GROUND CIRCUIT

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

2. Check continuity between combination meter harness connector (A) and ground.

4.CHECK INSTALLATION CONDITION

Check fuel level sensor unit and fuel pump (fuel level sensor) installation, and check whether the float arm interferes or binds with any of the internal components in the fuel tank.

Component Inspection

1.REMOVE FUEL LEVEL SENSOR UNIT AND FUEL PUMP (FUEL LEVEL SENSOR)

Remove the fuel level sensor unit and fuel pump (fuel level sensor). Refer to FL-6, "Removal and Installation".

>> GO TO 2

2.CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP (FUEL LEVEL SENSOR)

Check the resistance between terminals 2 and 5.

1* and 2*: When float arm is in contact with stopper.

    Power supply and ground circuit
    COMBINATION METER COMBINATION METER : Diagnosis Procedure Regarding Wiring Diagram information, refer to MWI-87, "Wiring Diagram". 1.CHECK FUSES Check for blown combination meter fuses. 2.POWER ...

    Oil pressure switch signal circuit
    Description Detects the engine oil pressure and transmits the oil pressure switch signal to the IPDM E/R. Component Function Check 1.COMBINATION METER INPUT SIGNAL  Select "METER/M&am ...

    Other materials:

    Lifting sensor (rear)
    Description The lifting sensor (rear) is installed to the seat frame. The pulse signal is input to the driver seat control unit when the lifting (rear) is operated. The driver seat control unit counts the pulse and calculates the lifting (rear) amount of the seat. Component Function ...

    Front fog lamp system
    Wiring Diagram ...

    Power window lock switch
    Component Function Check 1. CHECK POWER WINDOW LOCK Activate the power window lock switch and verify that the front power window RH, rear power window LH and rear power window RH are inoperative. Component Inspection 1. CHECK POWER WINDOW LOCK SWITCH Disconnect main power window and door ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2024 Copyright www.nimainfo.com
    0.0075