P0741: Torque Converter Clutch Circuit Performance Or Stuck Off
The torque converter clutch does not lock up when the transmission control unit commands it.
High risk
Usually drivable. Fuel use and transmission temperature may rise. Have it checked soon.
Short answer · Can I keep driving with P0741?
Usually yes. You may notice higher engine speed at steady cruising and higher fuel use. Have it checked soon to avoid overheating the transmission.
What does P0741 mean?
P0741 means the transmission control unit commands the torque converter clutch to lock, but the engine and turbine speeds still differ more than allowed. Low or worn transmission fluid, a faulty lock-up solenoid, a valve body problem or a worn converter clutch are typical causes.
What the car does when the code is set
The check engine or transmission warning comes on. You may notice slipping, flare when shifting, late engagement or the transmission staying in one gear.
How the system works
In each gear, an automatic transmission has a known ratio between its input and output speed. The transmission control unit compares the measured speeds with the expected ratio for the gear it has selected. If they do not match, a clutch or band is slipping, a shift has not been completed, or a speed signal is wrong. To protect the transmission, the control unit may lock it in one gear (limp mode) until the fault is cleared.
Common symptoms
Possible causes
Listed without ranking. The cause on your car depends on make, engine and mileage — see the maker notes below.
- Low or degraded transmission fluidClutches slip if the pressure is low.
- Worn clutches or bandsInternal wear lets the transmission slip.
- Faulty shift solenoids or valve bodyPressure is not controlled correctly.
- Speed sensor problemWrong speed readings give a wrong ratio calculation.
How it is diagnosed
- Check the fluidCheck level, colour and smell. Burnt fluid points to internal wear.
- Read gear ratio dataLive data shows which gear the ratio does not match.
- Check solenoids and sensorsTest them electrically and check other transmission codes.
- Pressure testA workshop measures line pressure to find internal problems.
Questions about P0741
How does P0741 feel when driving?
At steady cruising speed the engine turns a little faster than normal, as if slipping slightly. Some drivers notice a shudder when the clutch tries to engage.
Will a fluid change fix it?
Only if old or low fluid is the cause. If clutches are worn, new fluid may help for a short time only.