Quote Originally Posted by avguy View Post
Are you getting the 2 U codes using a scanner that's supposed to be able to read the Aveo TCM? Do you have access to another brand of scan tool that can read Aveo TCMs? If multiple Aveo TCM readers get those same U codes, then it would make the TCM seem like the culprit. If it comes to that , how about trying a U-pull TCM for a lot less $$?
Yes I've used a snap on scanner a cheaper code reader and a gm tech 2 scanner and all same codes. I might look into a used one see how much I can get it for.