Mazda 6 2004 help with a few things...

Henry, the first thing I would do is pull the code(s) (check engine) and read the information. You can take the car to any parts store and they will do it free, but don't start buying any parts they say that you need before you get a second opinion. The TCS or traction control system is tied in with the anti lock brake system. it uses the wheel speed sensors to determine when to activate.

Alright, yeah I remember get a cam sensor code, and I replaced that yesterday, and a cat converter code, but my mechanic said he'd pass me when I get the can sensor replaced and I did. This is just for emissions. As I said above I'd still need to replace all pads and rotors. Thank for your reply!

You are welcome!