Rover 75 CTDi traction control issue

[Devcore]

Hello,

I searched the forum, but i cannot find any solution on my problem. My car fitted with a factory TC and it's not working. The lights on the dash always stays on, no matter what i do. If i know right it's a complete unit with the ABS? On the other hand i dont have abs fault at all. When i switch of the TC before ignition no error. When i dont, i get a break fault error than its dissapear.

Thanks,
D.