is 156 key cloning possible?
Just got a 156 2.4 JTD (2001). Two black keys supplied. 1 Operates alarm, locking and immobilser, the other everything but the immobilser. Took car to independent specialist. He tried the portable recoder then his laptop recoder but could not clear the existing code in the car, so that the car and keys could be re programmed. Suggested new key + possibly car control unit. I'm puzzled why the current data on the key that works can't be copied to the other (which appears to have been in use for many years due to the wear on the blade.) He confirmed that there is no problem with 2 key's electronics, Any ideas