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Nissan Sentra B18 (2020-2025) Service Manual: P0741-00 Torque Converter

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0741

00

TORQUE CONVERTER

(Torque Converter Clutch Circuit Performance/Stuck Off)

Diagnosis condition

Diagnosis is permitted when all of the following conditions are satisfied:

a) Lock-up clutch target pressure (pressure difference) > 0.2 MPa

b) Lock-up range (except for lock-up slip)

c) Power supply voltage ≥ 10 V

Signal

—

Threshold

Lock-up clutch slip speed ≥ (40 + Nissan Sentra Vehicle speed/2) rpm

Diagnosis delay time

10 seconds

POSSIBLE CAUSE

  • Harness or connector

  • Torque converter clutch solenoid

  • Control valve

  • Torque converter

  • TCM

FAIL-SAFE

  • Start is slow

  • Acceleration is slow

  • Lock-up is not performed

DTC CONFIRMATION PROCEDURE

  1. PREPARATION BEFORE WORK

    If another "DTC CONFIRMATION PROCEDURE" occurs just before, ignition switch OFF and wait for at least 10 seconds, then perform the next test.

    TESTING CONDITION:

    Before performing the following procedure, confirm that battery voltage is more than 10 V.

    >>

    GO TO 2.

  2. CHECK DTC DETECTION

    1. Start the engine.

    2. Drive the Nissan Sentra vehicle and maintain the following conditions for 20 seconds or more.

      Shift position

      : "D" position

      Accelerator pedal position

      : 0.5/8 or more

      CVT fluid temperature

      : 20 °C (68 °F) or more

      Nissan Sentra Vehicle speed

      : 40 km/h (25 MPH) or more

      CAUTION:

      Be careful of the driving speed.

    3. Stop the Nissan Sentra vehicle.

    4. Check the DTC.

    Is "P0741-00" detected?

    YES >>

    Proceed to Diagnosis Procedure.

    NO-1>>

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

    NO-2>>

    Confirmation after repair: INSPECTION END

Diagnosis Procedure

Diagnosis Procedure

  1. REPLACE TRANSAXLE ASSEMBLY

    Replace transaxle assembly. Refer to Removal and Installation.

    >>

    WORK END

    P0740-00 Torque Converter
    Dtc Description DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P0740 00 TORQUE CONVERTER (Torque Converter Clut...
    P0742-00 Torque Converter
    Dtc Description DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P0742 00 TORQUE CONVERTER CLUTCH (Torque Convert...

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