Nissan Murano: Dtc/circuit Diagnosis / P2297 Air Fuel Ratio Sensor 1

Nissan Murano (Z52) 2015-2024 Service Manual / Engine / Engine Control System :: Vq35de / Dtc/circuit Diagnosis / P2297 Air Fuel Ratio Sensor 1

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
P2297

A/F SENSOR1 (B1)

(O2 Sensor Out of Range During Deceleration Bank 1 Sensor 1) 		Diagnosis condition Engine run and fuel shut off
Signal —
Threshold Air fuel ratio(A/F) sensor 1 bank 1 is out of normal range
Diagnosis delay time —

POSSIBLE CAUSE

Air fuel ratio(A/F) sensor 1 bank1

FAIL-SAFE

Not applicable

DTC 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.

YES>>

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

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

  2. Drive the Nissan Murano vehicle a 80 km/h (50 MPH), with selecting suitable gear.

    NOTE:

    Always keep safe driving to the first priority.

  3. Release accelerator pedal completely to decelerate the Nissan Murano vehicle for more than 10 seconds.

    NOTE:

    Always keep safe driving to the first priority.

  4. Check 1st trip DTC.

Is 1st trip DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO>>

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

NO>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY

  1. Disconnect A/F sensor 1 harness connector.

  2. Turn ignition switch ON.

  3. Check the voltage between A/F sensor 1 harness connector and ground.

    A/F sensor 1 Ground Voltage
    Bank Connector Terminal
    1 F12 1 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.

  2. Disconnect IPDM E/R harness connector.

  3. Check the continuity between A/F sensor 1 harness connector and IPDM E/R harness connector.

A/F sensor 1 IPDM E/R Continuity
Bank Connector Terminal Connector Terminal
1 F12 1 F19 52 Existed

Is the inspection result normal?

YES>>

Perform the trouble diagnosis for power supply circuit.

NO>>

Repair or replace error-detected parts.

CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT

  1. Turn ignition switch OFF.

  2. Disconnect ECM harness connector.

  3. Check the continuity between A/F sensor 1 harness connector and ECM harness connector .

    A/F sensor 1 ECM Continuity
    Bank Connector Terminal Connector Terminal
    1 F12 3 F79 66 Existed
    4 67

  4. Check the continuity between A/F sensor 1 harness connector and ground, or ECM harness connector and ground.

    A/F sensor 1 Ground Continuity
    Bank Connector Terminal
    1 F12 3 Ground Not existed
    4
    ECM Ground Continuity
    Connector Terminal
    F79 66 Ground Not existed
    67

  5. Also check harness for short to power.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair open circuit, short to ground or short to power in harness or connectors.

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