Originally Posted by davidf30

Thank you to all who responded. the SRT6 is once again running perfectly. The Autel Diaglink $89 from Amazon did the trick where the "professionals" supposed $6,000 software didn't!! Something that might help others is it only worked when I ran it as autoscan after selecting SLK 32 AMG and going that route. It did not work when I selected transmission. When I did that it told me there were no codes to clear although CEL was still on. After clearing codes and restarting I immediately noticed the P appear and I knew the car knew what gear it was in and was probably fixed. Was a good feeling! Thanks again Zip and others who took time. The posts all help to get a clearer picture of what might be needed.