| Chapter 8 | Principles of Electricity |
| Chapter 9 | Generating Electricity |
| Chapter 10 | Basic Electrical Circuits |
| Chapter 11 | Circuit Control Devices |
| Chapter 12 | Semiconductor Devices and Digital Electronics |
| Chapter 13 | Electrical Test Instruments |
| Chapter 14 | Commercial Vehicle Batteries |
| Chapter 15 | Advanced Battery Technologies |
| Chapter 16 | Servicing Commercial Vehicle Batteries |
| Chapter 17 | Heavy-Duty Starting Systems and Circuits |
| Chapter 18 | Charging Systems and Service |
| Chapter 19 | Electrical Wiring and Circuit Diagrams |
| Chapter 20 | Body Electrical Systems—Lighting Systems |
| Chapter 21 | Body Electrical Systems—Instrumentation |
| Chapter 22 | Body Electrical Systems—Accessory Electrical Circuits and Systems |
| Chapter 23 | Principles of Electronic Signal Processing |
| Chapter 24 | Sensors and Input Circuit Devices |
| Chapter 25 | Understanding and Servicing Electronic Control Systems |
| Chapter 26 | On-Board Vehicle Networks and Electronic Service Tools |