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Home >> Nissan-Datsun >> 2013 >> Sentra SL >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter, Warning Lamp & Indicator >> DTC/Circuit Diagnosis >> Fuel Level Sensor Signal Circuit >> Diagnosis Procedure

Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

  1. CHECK FUEL LEVEL SENSOR CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect combination meter connector and fuel level sensor unit connector.
    3. Check continuity between combination meter harness connector and fuel level sensor unit harness connector.
      Combination meter Fuel level sensor unit Continuity
      Connector Terminal Connector Terminal
      M24 6 B48 5 Yes
    4. Check continuity between combination meter harness connector and ground.
      Combination meter Ground Continuity
      Connector Terminal
      M24 6 No

      Is the inspection result normal? 

      YES: GO TO 2.

      NO: Repair or replace harness or connector.

  2. CHECK FUEL LEVEL SENSOR GROUND CIRCUIT 
    1. Check continuity between fuel level sensor unit harness connector and combination meter harness connector.
      Fuel level sensor unit Combination meter Continuity
      Connector Terminal Connector Terminal
      B48 2 M24 24 Yes
    2. Check continuity between combination meter harness connector and ground.
      Combination meter Ground Continuity
      Connector Terminal
      M24 2 No

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace harness or connector.

  3. 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 ".