You need to check the car engine and check all symptoms to know the problem of the car engine. In this case, you will get help from the car engine P0886 Code. There might be a number of explanations for piercing brakes. It could be that your brake pads are moveable, worn out, or you may have handbrake dust inside the drum. If you cannot see all things wrong with your brake pads, and you suspicious it may be brake dust, it may be best to permission this to a expert, brake dust can be extremely dangerous if fortuitously panted.