ABSTRACT
This chapter provides an introduction to two types of light vehicle brakes: disc brakes and drum brakes. It describes the principle of hydraulic braking and servo-assisted braking. On many braking systems it is necessary to use a scan tool as part of a brake diagnosis process. It may also be necessary to use the scanner to bleed the hydraulic systems. The antilock brake system (ABS) is becoming more common on lower price vehicles, which should be a contribution to safety. The chapter discusses the advantages and requirements of different types of antilock brake systems. Electronic traction control has been developed as a supplement to ABS. This control system prevents the wheels from spinning when moving off or when accelerating sharply while on the move. Standard front-wheel alignment is simply a way of making sure the wheels are operating parallel with one another and that the tyres meet the road at the correct angle.
