i just got my car back from the garage with a new starter, fuel filter, and pc valve.  One week later and now there is a clicking-type noise when i press the brakes.  I turned off the traction control, but it continues. There is no pulsation or give in the brake peddle, and it otherwise runs fine.  I don’t want another repair bill.  Is this the traction control, and can i just disconnect it? (if so, how do i do this so the check engine light does not then turn on?)If not, what is it?
 thank you!