Famous Traction Control Light Stays On References. The first thing you should do if the traction control light stays on is to check the. Web when the abs and traction control lights illuminate, it is typically due to a faulty wheel or speed sensor or an abs module failure.
If it comes back on, it's likely time to call a mechanic and get a system diagnosis. Improper tire pressure can sometimes cause the traction control light to activate. Faulty wheel speed sensor the wheel speed sensor is responsible for detecting the speed of the wheels and supplying this information to the abs control unit in the form of an electrical signal.
