I just had the EBTCM replaced on my 2001. My odometer and speedometer were not working, but I didn't have any warning lights showing (although the dealer did tell me this module controls ABS and traction control as well). Anyway, it cost ~$1300 to replace at the Caddy dealership, so if you can do it yourself, more power to you. I undestand it's pretty tough to get to, though. End result ... everything works fine after replacement.
it happened to me me TC ABS are on and it goes away when its too cold ..(chicago weather) when temp goes to 0 degrees everything seems to work fine and so the transmission light......might be a wiring problem?? help!!!