For courses in Automotive Principles, Service, and/or Mechanics . This comprehensive text provides a general introduction to the discipline of automotive service, and prepares students for the Red Seal examination leading to certification. Its unique emphasis is on diagnosis: diagnostic stories and tech tips are included throughout to help illustrate how real problems are solved. Each new topic covers the parts involved plus the purpose, function, and operation, as well as how to test and diagnose each system. It accurately reflects the information and skills needed in today's workplace.