P0741: Wandlerüberbrückungskupplung — Fehlfunktion / schließt nicht
Wandlerüberbrückungskupplung — Fehlfunktion / schließt nicht: Slip RPM across the torque converter exceeds threshold when lock-up clutch is commanded engaged at highway speed.
| Trouble Code (DTC) | P0741 |
|---|---|
| Official SAE Definition | Wandlerüberbrückungskupplung — Fehlfunktion / schließt nicht |
| Vehicle Subsystem | powertrain |
| Driving Severity | MEDIUM |
Observable Symptoms
- 200–300 RPM higher engine speed at highway cruise
- Reduced highway fuel economy
- Overheating transmission fluid
Most Probable Root Causes
- Worn torque converter lock-up friction lining
- Sticking TCC solenoid or valve body bore wear
- Low or contaminated ATF
Step-by-Step Diagnostic Procedure
- Monitor TCC command vs TCC slip RPM in live transmission data
- Inspect ATF condition and test TCC solenoid