OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Powertrain generic / SAE

P287C

Transmission Adaptive Values Not Learned

The TCM has not learned the adaptive shift values needed for refined gear changes. The transmission operates with default values until adaptation completes.

SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number8 / 7C

Possible causes

  • Adaptation lost after battery disconnect or TCM reset high
  • Following major transmission repair 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: 20–200 €
  • Estimated time: 0.5–2 h
  • Component: tcm
  • MIL / check engine light
  • drive cycle required

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication