What it means
The torque converter clutch is not performing as expected or appears stuck off. The code does not by itself confirm worn clutch material.
At a glance
- Usually lights the check-engine light
How it works
The TCC clutch is intended to lock the engine and transmission together under suitable steady-driving conditions, reducing converter slip. P0741 sets when the controller commands lockup but the expected reduction in slip does not occur, which can reflect a solenoid, hydraulic-control, wiring, fluid, or clutch problem.
Common causes
Most likely first.
- Torque converter clutch or hydraulic control fault
- TCC solenoid or valve body fault
- Wiring or connection fault
Symptoms
- Check engine or transmission warning light on
- Higher engine speed or reduced fuel economy during steady cruising
- Possible shudder during lockup
How to diagnose it
- Save freeze-frame data and review vehicle speed, engine speed, commanded TCC state, and reported slip when the code set.
- Check for related transmission codes and inspect TCC wiring and connectors for damage, corrosion, or loose terminals.
- Check for leaks and verify transmission-fluid level and condition using the manufacturer's specified procedure.
- Use scan data during appropriate steady driving to compare commanded TCC lockup with actual engine-to-transmission slip and note any shudder.
- Test the TCC solenoid circuit and hydraulic control, then assess converter clutch operation using the manufacturer's procedure.
Common fixes
- Repair damaged TCC wiring or connector terminals.
- Correct low fluid and repair any leak.
- Replace a confirmed faulty TCC solenoid.
- Repair a valve-body or hydraulic-control problem affecting lockup.
- Repair or replace a worn or damaged converter clutch only if testing confirms it.
Can I keep driving?
Short, gentle trips may be possible if shifts remain normal, but avoid towing, heavy loads, and prolonged high-speed cruising because the engine may run faster and the transmission may heat more. Stop if shudder or slipping becomes pronounced or the transmission overheats.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.