Powertrain
Definition only
Lights the check engine lamp
P278F: Clutch B Adaptive Learning at Limit
Standardized SAE J2012 code · P27xx — Transmission
What does P278F mean?
The adaptive learning that compensates for clutch B engagement point drift in a DCT has reached its limit.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Common causes
- High Clutch worn beyond compensation range
- Medium Actuator position drift
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P278F on the same make and model first.
P278F in the community
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