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Nissan Sentra B18 (2020-2025) Service Manual: P1197 Out of Gas

Dtc Description

DTC Description

This diagnosis result is detected when the fuel level of the fuel tank is extremely low and the engine does not run normally.

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P1197

FUEL RUN OUT

(Out of gas)

A

Diagnosis condition

—

Signal (terminal)

Fuel rail pressure sensor signal

Threshold

Fuel rail pressure remains at 1.1 MPa (11 bar, 11.2 kg/cm2, 159.5 psi) or less with the fuel level too low

Diagnosis delay time

5 seconds or more

B

Diagnosis condition

—

Signal (terminal)

Fuel rail pressure sensor signal

Threshold

Fuel rail pressure remains 2.7 MPa (27 bar, 27.5 kg/cm2, 392 psi) lower than a target fuel pressure with the fuel level too low

Diagnosis delay time

5 seconds or more

POSSIBLE CAUSE

  • Fuel cut

  • Harness or connectors (Fuel pump circuit is open or shorted.)

    • Fuel pump circuit is open or shorted.

    • High pressure fuel pump circuit is open or shorted.

    • High pressure fuel pump relay circuit

  • Fuel pump

  • Fuel pressure regulator

  • Fuel pump system

  • High pressure fuel pump

  • High pressure fuel pump system

  • High pressure fuel pump relay

  • Fuel rail pressure sensor

  • Hose disconnection

FAIL-SAFE

Engine operating condition in fail-safe mode

Fail safe mode

Nissan Sentra Vehicle behavior

Device fix mode

  • This mode fixes the electric IVT motor and the EVT control solenoid valve in the reference position.

  • The intake manifold runner control valve motor is turned OFF (intake manifold runner control valve opens).

Others

Engine torque is limited.

Confirmation Procedure

Confirmation Procedure

  1. PRECONDITIONING

    If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

    1. Turn ignition switch OFF and wait at least 10 seconds.

    2. Turn ignition switch ON.

    3. Turn ignition switch OFF and wait at least 10 seconds.

    TESTING CONDITION:

    Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.

    >>

    GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE-1

    Start the engine.

    Does the engine start?

    YES >>

    GO TO 3.

    NO >>

    Proceed to DTC Diagnosis Procedure.

  3. PERFORM DTC CONFIRMATION PROCEDURE-2

    1. Start the engine and warm it up to normal operating temperature.

      Note:

      For best results, warm up the engine until “COOLANT TEMP/S” on “DATA MONITOR” mode of “ENGINE” using CONSULT reaches at least 70°C (158°F).

    2. Keep the engine speed at 3,500 rpm for 5 seconds and let it idle at least 1 minute.

    3. Check 1st trip DTC.

      Note:

      If the fuel tank has sufficient fuel, this diagnosis result may not be detected.

    Is 1st trip DTC detected?

    YES >>

    Proceed to DTC Diagnosis Procedure.

    NO-1 >>

    To check malfunction symptom before repair: Refer to Intermittent Incident.

    NO-2 >>

    Confirmation after repair: INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

  1. REFUEL THE VEHICLE

    1. Refuel 10 liter (8 Imp qt).

      CAUTION:

      Never refuel more than 10 liter.

    2. Start the engine and keep the engine speed at 3,000 rpm for 30 seconds.

      Note:

      For best results, warm up the engine until “COOLANT TEMP/S” on “DATA MONITOR” mode of “ENGINE” using CONSULT reaches at least 70°C (158°F).

    3. Turn ignition switch OFF and wait at least 10 seconds.

    4. Turn ignition switch ON.

    5. Turn ignition switch OFF and wait at least 10 seconds.

    6. Turn ignition switch ON.

    7. Erase DTC.

    8. Start engine and let it idle for at least 60 seconds.

    9. Perform DTC Confirmation Procedure, again. Refer to Confirmation Procedure.

    Is 1st trip DTC detected?

    YES >>

    GO TO 2.

    NO >>

    INSPECTION END

  2. CHECK FUEL PUMP

    Check fuel pump. Refer to Component Function Check.

    Is the inspection result normal?

    YES >>

    GO TO 3.

    NO >>

    Repair or replace malfunctioning part.

  3. CHECK HIGH PRESSURE FUEL PUMP

    Check high pressure fuel pump. Refer to Component Function Check.

    Is the inspection result normal?

    YES >>

    Check fuel hose connection.

    NO >>

    Repair or replace malfunctioning part.

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