DTC Detection Logic

WARNING: This page is about a different car, the 2020 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