Nissan Rogue (T33) 2021-Present Service Manual: P0053 A/f Sensor 1 Heater

Nissan Rogue (T33) 2021-Present Service Manual / Engine :: Engine Control System / Kr15ddt :: Dtc/circuit Diagnosis / P0053 A/f Sensor 1 Heater

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
P0053 00

HO2S1 HTR B1

(HO2S heater resistance bank 1 sensor 1) 		Diagnosis condition —
Signal (terminal) A/F sensor 1 heater signal
Threshold During engine running, weighted average of A/F sensor internal resistance is out of the normal range
Diagnosis delay time —

POSSIBLE CAUSE

  • Harness and connectors [A/F sensor 1 heater circuit is open or shorted.]

  • A/F sensor 1 heater

FAIL-SAFE

Not applicable

DTC Confirmation Procedure

CHECK DTC PRIORITY

If DTC P0053 is displayed with the following DTC, perform the trouble diagnosis for the applicable DTC.

  • P0130

  • P0031

  • P0032

If applicable DTC detected?

YES>>

Perform diagnosis of applicable.

  • P0130: Refer to DTC Description.

  • P0031: Refer to DTC Description.

  • P0032: Refer to DTC Description.

NO>>

GO TO 2.

PRECONDITIONING

If DTC Confirmation Procedure has been previousl 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 between 10 V and 16 V at idle.

>>

GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE

  1. Start the engine and warm it up until the engine coolant temperature reaches 25℃ (77°) or more.

  2. Keep the engine at idle at idle at least 35 seconds.

  3. Check DTC.

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

CHECK DTC PRIORITY

If DTC P0053 is displayed with the following DTC, perform the trouble diagnosis for the applicable DTC.

  • P0130

  • P0031

  • P0032

If applicable DTC detected?

YES>>

Perform diagnosis of applicable.

  • P0130: DTC Description

  • P0031: DTC Description

  • P0032: DTC Description

NO>>

GO TO 2.

CHECK GROUND CONNECTION

  1. Turn ignition switch OFF.

  2. Check ground connection E9. Refer to Ground Inspection in Refer to Circuit Inspection.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace ground connection.

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

  1. Disconnect air fuel ratio (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
    Connector Terminal
    F18 4 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

DETECT MALFUNCTIONING PART

Check the following.

  • Fuse

    Location Fuse No. Capacity
    IPDM E/R #82 15 A

  • Harness for open or short A/F sensor 1 power supply circuit.

>>

Repair or replace harness or connectors.

CHECK A/F SENSOR 1 HEATER OUTPUT 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
    Connector Terminal Connector Terminal
    F18 3 F72 6 Existed

  4. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

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

CHECK A/F SENSOR 1 HEATER

Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

GO TO 7.

REPLACE AIR FUEL RATIO (A/F) SENSOR 1

Replace air fuel ratio (A/F) sensor 1. Refer to Exploded View.

>>

INSPECTION END

CHECK INTERMITTENT INCIDENT

Perform Refer to Intermittent Incident.

>>

Repair or replace.

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