2003 Cadillac Cts Ecm Location. Please be sure to test all of your wires with a digital. You need to take it one step further, and find out.
Forumoto location offline senior member reputation: If you are experiencing any of these problems, chances are you need a new pcm: Make sure your cadillac cts engine control module is always fully operational, and get it replaced at autozone when it starts malfunctioning.