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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 88 (Engine Control System (DTC/Circuit Diagnosis) (4 Of 5)) >> DTC/Circuit Diagnosis >> DTC P0326: Knock Sensor >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC PRIORITY 

    If DTC P0326 is displayed with DTC P0327 or P0328, first perform the confirmation procedure (trouble diagnosis) for DTC P0327 or P0328.

    Is applicable DTC detected?

    YES

    Perform diagnosis of applicable. Refer to DTC Description .

    NO

    GO TO 2.

  2. CHECK INSTALLATION CONDITION OF KNOCK SENSOR 

    Visually check that the knock sensor is installed normally.

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair or replace error-detected parts.

  3. CHECK INTERMITTENT INCIDENT 

    Check intermittent incident. Refer to Intermittent Incident .

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Repair or replace error-detected parts.

  4. CHECK KNOCK SENSOR CIRCUIT 

    Check knock sensor circuit. Refer to Diagnosis Procedure .

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    Repair or replace error-detected parts.

  5. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Turn ignition switch ON.
    2. Erase DTC.
    3. Perform DTC confirmation procedure. Refer to DTC Description .

    Is the 1st trip DTC P0326 displayed again?

    YES

    Replace ECM. Refer to Removal and Installation .

    NO

    INSPECTION END

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