Nissan Versa

 Sedan Service Manual

Transmission & driveline » Transaxle & transmission (TM) » P0744 Torque converter
Diagnosis Procedure

1.CHECK LINE PRESSURE

Perform line pressure test. Refer to TM "Work Procedure".

Is the inspection result normal?

YES >> GO TO 2.

NO >> Repair or replace the malfunction items.

2.CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE

1. Turn ignition switch OFF.
2. Disconnect CVT unit connector.
3. Check torque converter clutch solenoid valve. Refer to TM "Component Inspection (Torque Converter Clutch Solenoid Valve)".

Is the inspection result normal?

YES >> GO TO 3.

NO >> Repair or replace the malfunction items.

3.CHECK INTERMITTENT INCIDENT

Refer to GI "Intermittent Incident".

Is the inspection result normal?

YES >> Replace the transaxle assembly. Refer to TM, "Removal and Installation".

NO >> Repair or replace the malfunction items.

Component Inspection (Torque Converter Clutch Solenoid Valve)

1.CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE

Check resistance between CVT unit connector terminal and ground.  

Is the inspection result normal?

YES >> INSPECTION END

NO >> There is a malfunction of torque converter clutch solenoid valve. Replace transaxle assembly.

Refer to TM "Removal and Installation".

DTC Logic

Diagnosis Procedure