This special function is dedicated to adapting “second-hand” immobilizers from one vehicle to another. To adapt the immobilizer to the car you need the existing PIN and CS of the “secondhand” immobilizer. You can extract it by reading the EEPROM dump of the second-hand module, or if you have the engine control unit from the car from which you have taken the replacement (second-hand) module.

When starting this special function the following dialog is displayed:

So you need to load the Comfort module EEPROM dump, or to enter manually the PIN and CS of the second hand module.

ATTENTION: You should know the power class of the engine control unit before you execute this function! Normally the power class of the comfort module is displayed automatically if you load the comfort module dump. Then you are able to change it (if the ECU has different power class). If you enter a wrong power class and this is a working vehicle (i.e. ECU and Immobilizer are adapted), the car will stop working. It will start working again only if you put the correct power class in the beginning of the procedure. This is so because the Immobilizer (Comfort module) will take the power class you enter.

ATTENTION: After the reading is finished, any working keys will stop working and should be re-learned to make them working again.

NOTE: This special function can also be used for key-learning. If you have the comfort module dump, you can load it here and all 7 bytes of CS will be displayed. Then the customer can make a dealer key using these 7 bytes.