Check engine and traction control lights on

While I was driving to work the other day, the traction control light went on. So I stopped safely, turn off the engine and turn it on again. The light disappeared but after a few minutes of driving, the check engine light went on followed by the traction control. Does the shaking of the steering when I slow down causes those lights to come on? The shaking was caused by the bad front rotors and brakes pads. Both front rotors and pads were replaced and no more shaking. My mechanic also reset the lights. Thanks and hoping for your most appreciated reply.