... 42 for VW.Function Four:Can use to program the EEPROM on the ECU. Get rid of removing the proceture for reading ... pincode and reset the ecu.With ECU picture and EEPROM code explanation.Function Five:AD900 come ... , E87, E90, E91, E92 EWS3, EWS3+, EWS4, CAS, CAS2, CAS3. car key programmer AD 900 Key programmer