Automotive Diagnostic Systems: Understanding OBD-I & OBD-II - Paperback

Automotive Diagnostic Systems: Understanding OBD-I & OBD-II is a practical guide designed for homeschool families and their kids who want hands-on automotive science at home. It blends history, real-world diagnostics, and actionable steps to turn car trouble into a learning opportunity.

Key Features & Design

• Format and length: Paperback, 146 pages, illustrated in black and white, giving clear visuals to accompany concepts.
• Size and build: 11" x 8.5" with a compact 0.31" thickness—easy to stack in a homeschool reading nook or lab setup.
• Edition details: Written by Keith McCord, focused on practical automotive diagnostics for home experiments and study.
• Scope: Traces the evolution from OBD-I to OBD-II, detailing main features, capabilities, and characteristics of modern onboard diagnostics.
• Hands-on focus: Shows how to access the port connector, interpret serial data protocols, and understand what the data means for diagnosis.
• Diagnostics support: Includes a table of common DTCs and a thorough troubleshooting process to reach root causes.
• Tools compatibility: Designed for use with affordable handheld scanners and other common tools available to students at home.
• Curriculum-friendly: Perfect for homeschool STEM blocks, automotive tech units, and hands-on science labs.

Performance / Benefits

In a homeschool setting, this book helps students grasp how electronic control units (ECUs) interact with a vehicle’s major systems, and how to translate code into actionable fix steps. It blends theory with practical, step-by-step methods, so learners move from reading data to understanding its cause-and-effect in real cars.

• What you’ll learn: The history and development of OBD-I and OBD-II, how to locate and use the diagnostic port, what serial data represents, and how to interpret common diagnostic trouble codes (DTCs).
• Hands-on workflow: A proven troubleshooting process that prioritizes root-cause analysis over chasing symptoms, using a handheld scanner and basic auto tools.
• Real-world readiness: Builds confidence to diagnose and address many ECU and sensor-related issues at home, potentially reducing trips to the shop.
• Curriculum alignment: Integrates with automotive technology, physics of sensors and electronics, data interpretation, and problem-solving within homeschool science and engineering curricula.
• Ideal use cases: Home auto labs, weekend diagnostic projects, science fair-style demonstrations, and cross-curricular lessons that connect math, electronics, and engineering to everyday vehicles.
• What sets it apart: Unlike broad overviews, this guide emphasizes a systematic troubleshooting process that leads to durable solutions, not just code reading, with practical steps using consumer-grade gear.