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Home >> Infiniti >> 2014 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (Automatic Transmission (Re0F10E) (DTC/Circuit Diagnosis) (Except Hybrid) (2 Of 2)) >> DTC/Circuit Diagnosis >> DTC P0744: Torque Converter >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
DTC CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition Possible causes
P0744 TORQUE CONVERTER
(Torque converter clutch circuit intermittent)
When all of the following conditions are satisfied and this state is maintained for 30 seconds:
  • TCM power supply voltage: More than 11 V
  • P0717 is not detected.
  • CAN communication is normal
  • Torque converter slip speed: (40+vihicle speed/2) RPM
  • LU pressure: More than 0.2 MPa
  • Torque converter clutch solenoid valve
  • Control valve assembly
  • Torque converter