ix Troubleshooting Charts help you develop critical-thinking, diagnostic, and troubleshooting skills needed in the workplace today. Workplace Skills, Customer Relations, Green Tech, In the Rearview Mirror, Industry Trend, Safety First, and Hybrid Tip features help you develop the professional skills, behaviors, and traits employers look for in their employees. Review Questions allow you to demonstrate knowledge, identification, and comprehension of chapter material. ASE-Type Questions help you prepare for the types of questions encountered on the ASE certification tests. Diagnostic Case Studies help you develop logical troubleshooting techniques and reinforce the 3Cs approach to vehicle diagnosis and repair. Technical Terms list the key terms that were presented in the chapter. Activities extend your learning and help you analyze and apply knowledge. Summary feature provides an additional review tool for you and reinforces key learning objectives.