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

Nissan Sentra B18 (2020-2025) Service Manual / Engine / Work Procedure (After Replacing Electric Throttle Control Actuator) / Dtc/circuit Diagnosis / 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

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.
PERFORM DTC CONFIRMATION PROCEDURE-1

Start the engine.

Does the engine start?
YES >>
GO TO 3.
NO >>
Proceed to DTC Diagnosis Procedure.
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

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
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.
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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