Is there any codes? These messages are the first thing you will see if any of the grounds or if any of the sensors, like wheel sensors or steering wheel position sensors is going bad. It could be as complex as the EBTCM module or as simple as a bad wire.
I had that problem and it took me only a small screw driver to give some ‘spring’ to the female wheel sensor harness connectors. See pictures on my web page.
My friend had the same series of error messages. The dealer told him he had to replace the wheel hub bearing. I took the codes and it was complaining about left wheel sensor. I think that was C1228. I took the ohms with my digital voltmeter and found that the hub was fine. Remove the EBTCM connector and took the ohms at connector. I found that when I was moving the harness at wheel, I was loosing the ohms, therefore, only the 2 feet harness was bad. I switched the 2 feet harness with the other side. And the code switched to the other wheel. He bough a new 2 feet harness and problem was fixed. You will see the harness I’m referring to on picture 5 (Front connector. Wheel side. ) & 6 (Front Connector. Harness side. ) of the picture on my webpage.
An other of my friend got this message on his 2002 Z. Took the codes and that was the steering wheel position sensor. He had it replaced. Every thing is fine since then.
An other of my friends got the same series of messages on his 2001 Z last week. We looked at the codes and it was complaining about the steering wheel sensor. Since it append only once, I told him to live it like that and we will start trouble shooting only if it appends again.
What I want to say, is that each time something with one of the ABS-TC, the car will show all the same message on the DIC, Service Active engine, Service Traction Control, Service ABS. It will illuminate the TC and ABS light on the control panel and disable TC and ABS.
You need to read the codes and post them and we will try to help further.
more info on my web site
http://pages.videotron.com/vette747/
and scroll down to ABS-TC EBTCM