Powertrain
generic / SAE
P287B
Shift Fork A Calibration Not Learned
The TCM has not learned the end-stop calibration for shift fork A. Engagement positions cannot be commanded with full precision until adaptation completes.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number8 / 7B
Possible causes
- Adaptation lost after battery disconnect or TCM reset high
- Shift fork replaced without learn procedure 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: easy
- DIY: shop recommended
- Estimated cost: 50–250 €
- Estimated time: 0.3–1.5 h
- Component: shift fork a
- Component: shift fork actuator a
- Component: tcm
- MIL / check engine light
- drive cycle required
Sources
References
sae:J2012