P2769moderate severityPowertrain
Torque Converter Clutch Duty Cycle Not Understood
on 2024 Tesla Model S Plaid Tri Motor AWD · AWD
What this code means
The TCM cannot determine the correct duty cycle for TCC operation.
Symptoms
- Check engine light
- TCC shudder
- Abnormal converter operation
Common causes
- TCM calibration issue
- Input sensor fault
- Solenoid performance issue
Diagnostic steps
- Check input speed sensor
- Update TCM calibration if TSB exists
- Monitor TCC data
Repair notes
Update TCM software. Replace solenoid if mechanical fault.
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