Adaptation after replacing the instrument cluster and the Engine Control Module (ECM): Notes

The computational rule for the variable code is written into the transponder and locked during adaptation of the vehicle key. After this, these vehicle keys cannot be adapted to another immobilizer. If the instrument cluster and Engine Control Module (ECM) are both replaced together, the new immobilizer in the instrument cluster receives a different computational rule for the variable code. During adaptation, this new computational rule will be written into the Engine Control Module (ECM) and into the vehicle keys where it is also locked.