Aurora traction control

I am looking at a couple of Aurora's on Ebay. Some are advertised as having traction control. One that I am considering may or may not have it, the seller is n't sure. How do you know if the car has it and secondly, how can you test it, so you can be sure its working?

Thanks
Barry

they all have it and if something is wrong with it then the check engine light will come on.