I am confuzed with this dalema when i am driving in the rain and my car slips and the tcs kicks in and does its thing trying the get traction and while its doing that my check engine light comes on and stays on ontill i shut the car off and restart it and it happens everytime it slips and i plug in my code reader and it comes up with nothing ask some buddy for his opion and he comes up with a blank and i am just stoped so if anyone has any idea on this problem please give me some possible ideas and its only 3 months old so i cant image any machanical problems so i am stumped on this one.