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Home >> Nissan-Datsun >> 2017 >> Pathfinder SL, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 4) >> DTC/Circuit Diagnosis >> DTC P0461: Fuel Level Sensor >> DTC Description >> DTC Confirmation Procedure

DTC Confirmation Procedure

  1. CHECK DTC PRIORITY

    If DTC P0461 is displayed with DTC UXXXX or P0607, first perform the confirmation procedure (trouble diagnosis) for DTC UXXXX or P0607.

    Is DTC UXXXX or P0607 detected?

    YES 

    Perform diagnosis of applicable.

    NO 

    GO TO STEP 2  .

  2. PRECONDITIONING

    WARNING:

    When performing the following procedure, always observe the handling of the fuel. Refer to GENERAL PRECAUTIONS .

    TESTING CONDITION: 

    Before starting component function check, preparation of draining fuel and refilling fuel is required. 

    Do you have CONSULT?

    YES 

    GO TO STEP 3  .

    NO 

    GO TO STEP 4  .

  3. PERFORM COMPONENT FUNCTION CHECK

    NOTE:

    Use component function check to check the overall function of the fuel level sensor. During this check, a 1st trip DTC might not be confirmed.

    G-20With CONSULT 

    NOTE:

    Start from step 10, if it is possible to confirm that the fuel cannot be drained by 30 LITER (7-7/8 US gal, 6-5/8 Imp gal) in advance.

    1. Prepare a fuel container and a spare hose.
    2. Release fuel pressure from fuel line, refer to WORK PROCEDURE .
    3. Remove the fuel feed hose on the fuel level sensor unit.
    4. Connect a spare fuel hose where the fuel feed hose was removed.
    5. Turn ignition switch OFF and wait at least 10 seconds then turn ON.
    6. On CONSULT screen, select "ENGINE">>"Data Monitor">>"FUEL LEVEL SE".
    7. Check "FUEL LEVEL SE" output voltage and note it.
    8. On CONSULT screen, select "ENGINE">>"Active Test">>"FUEL PUMP RELAY".
    9. Touch "ON" and drain fuel approximately 30 LITER (7-7/8 US gal, 6-5/8 Imp gal) and stop it.
    10. Check "FUEL LEVEL SE" output voltage and note it.
    11. Fill fuel into the fuel tank for 30 LITER (7-7/8 US gal, 6-5/8 Imp gal).
    12. Check "FUEL LEVEL SE" output voltage and note it.
    13. Confirm whether the voltage changes more than 0.03V during step 7 to 10 and 10 to 12.

    Is the inspection result normal?

    YES-1 

    To check malfunction symptom before repair: Refer to INTERMITTENT INCIDENT .

    YES-2 

    Confirmation after repair: INSPECTION END

    NO 

    Proceed to DIAGNOSIS PROCEDURE .

  4. PERFORM COMPONENT FUNCTION CHECK

    G-21Without CONSULT 

    NOTE:

    Start from step 8, if it is possible to confirm that the fuel cannot be drained by 30 LITER (7-7/8 US gal, 6-5/8 Imp gal) in advance.

    1. Prepare a fuel container and a spare hose.
    2. Release fuel pressure from fuel line. Refer to WORK PROCEDURE .
    3. Remove the fuel feed hose on the fuel level sensor unit.
    4. Connect a spare fuel hose where the fuel feed hose was removed.
    5. Turn ignition switch ON.
    6. Drain fuel by 30 LITER (7-7/8 US gal, 6-5/8 Imp gal) from the fuel tank using proper equipment.
    7. Confirm that the fuel gauge indication varies.
    8. Fill fuel into the fuel tank for 30 LITER (7-7/8 US gal, 6-5/8 Imp gal).
    9. Confirm that the fuel gauge indication varies.

    Is the inspection result normal?

    YES-1 

    To check malfunction symptom before repair: Refer to INTERMITTENT INCIDENT .

    YES-2 

    Confirmation after repair: INSPECTION END

    NO 

    Proceed to DIAGNOSIS PROCEDURE .

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