Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, CTS wont stay running, BAD ECM in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; Hello, I have a 2004 cts and i believe the ecm to be bad. The key is stuck in the ...
Hello, I have a 2004 cts and i believe the ecm to be bad. The key is stuck in the ignition and when the key is turned, it doesnt turn over. I have tried removing the harness in the fuse box or removing battery power to no avail. Also tried new battery.
Im getting this weird long beep noise in the engine compartment as well.
I found a older thread where a fellow also had a 2004 cts in which he jumped the starter wire and started it that way, but when i do that, it cranks for a second, and doesnt stay running. Sounds like a bad fuse, but i dont know where to start.
You can see the symptoms and long beep in the video below.
There is a small hole dead center under the steering column. It has a plastic cover you need to remove. Use a straightened paper clip or other pointy object to depress the key release mechanism while turning the key to off at the same time.
As for the not starting issue, is the check engine light on with the key in the on position? Traction light on? Gas gauge at zero?