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

P0743

TORQUE CONVERTER

(Torque Converter Clutch Circuit Electrical)

When all of the following conditions are satisfied and this state is maintained for 0.48 seconds:

TCM power supply voltage: More than 11 V
TCM judges that solenoid valve circuit is shorted to ground.

Harness or connector
(Torque converter clutch solenoid valve circuit is shorted to ground)
Torque converter clutch solenoid valve