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Nissan Sentra B18 (2020-2025) Service Manual: P061b Ecm

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P061B

CONTROL MODULE

(Internal Control Module Torque Calculation Performance)

Diagnosis condition

Engine running

Signal (terminal)

—

Threshold

Malfunction of ECM processor

Diagnosis delay time

—

POSSIBLE CAUSE

  • Harness or connectors

    (Circuit is open or shorted.)

  • ECM

FAIL-SAFE

Engine operating condition in fail-safe mode

Fail safe mode

Nissan Sentra Vehicle behavior

Device fix mode

  • This mode fixes the IVT control solenoid valve 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

ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.

Confirmation Procedure

Confirmation Procedure

  1. PRECONDITIONING

    If DTC Confirmation Procedure has been previously conducted, always perform the turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

    TESTING CONDITION:

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

    >>

    GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE

    1. Start the engine and let it idle for 30 seconds.

    2. Check 1st trip DTC.

    Is 1st trip DTC detected?

    YES >>

    Proceed toDTC 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. PERFORM DTC CONFIRMATION PROCEDURE

    1. Turn ignition switch ON.

    2. Erase DTC.

    3. Perform DTC confirmation procedure again. Refer to DTC Description.

    4. Check 1st trip DTC.

    Is the DTC P061B displayed again?

    YES >>

    Replace the ECM. Refer to ECM : Removal & Installation.

    NO >>

    INSPECTION END

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