Book excerpt: Modern Automotive Technology for Maintenance and Light Repair is an easy-to-understand, up-to-date textbook detailing the construction and operation of automobiles and light trucks. It has been designed to help prepare aspiring technicians for exciting and productive careers in automobile technology. It also provides the information needed to prepare for the ASE Maintenance and Light Repair certification test. No longer can the untrained person effectively service and repair modern vehicles. As technology has evolved, even the most basic automotive systems have become increasingly complex. Multiple on-board computers are now used to monitor and control the engine, transmission, suspension, brakes, emission controls, and other vital vehicle systems. As the demand has grown for technicians who can service and repair these increasingly sophisticated automotive systems, so has the need for a learning solution that prepares students for entry-level employment in this exciting field. Modern Automotive Technology for Maintenance and Light Repair will give you the tools needed to begin your career in the challenging and ever-changing world of automotive technology.