Powertrain
generic / SAE
P28EC
Shift Motor Position Sensor Exceeded Learning Limit
The required adaptation offset for the shift motor position sensor exceeds the calibrated learning window. Sensor or mechanism out of nominal range.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number8 / EC
Possible causes
- Mechanical wear shifted end-stops high
- Sensor reference drifted medium
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
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–2200 €
- Estimated time: 2–8 h
- Component: shift motor
- Component: shift motor position sensor
- Component: tcm
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012