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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Automatic Transmission (DTC/Circuit Diagnosis) (Re7R01B)) >> DTC/Circuit Diagnosis >> DTC P0744: Torque Converter >> DTC Description >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different variant/trim than selected.

This malfunction is detected when the A/T does not lock-up. This is not only caused by electrical malfunction (circuits open or shorted) but also by mechanical malfunction such as control valve sticking, improper solenoid valve operation, etc.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0744

TORQUE CONVERTER

(Torque Converter Clutch Circuit Intermittent)

Diagnosis condition

When all of the following conditions are satisfied:

  • Vehicle is applying the slip lock-up condition.
  • Selector lever: D
  • Vehicle speed: 10 km/h (7 MPH) or more
  • Engine speed: 150 rpm or more
  • Accelerator pedal position: 1.0/8 or more

Signal

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Threshold

The lock-up is not performed in spite of within the lock-up area

Diagnosis delay time

Maintained for 10 seconds or more