Practical Vehicle Testing Techniques That Eliminate Guesswork
Learn the shop-tested electrical and electronic diagnostic methods trusted by technicians for decades.
🟦 Electrical Bible|🛠 Shop-Tested Techniques |🏅 GM Instructor-Praised |🔧 Used by Technicians 10+ Years | Beginner-Friendly Explanations
The Hands-On Vehicle Testing Reference
Your step-by-step guide to diagnosing electrical and electronic problems using real shop-tested techniques — not guesswork.
This book teaches the essential methods every technician should know.
Amp testing with a meter & inductive pick-up
Computer module & sensor testing
Continuity testing & ohmmeter use
Current paths & shared-current-path diagnostics
Fuel pump & injector testing
Fuse, fusible link & circuit breaker testing
Generator/alternator testing
Relay testing
Starter testing
Battery testing
Voltage drop testing
Meter setup & safety procedures
What Technicians Are Saying
Testimonial 1 — Confidence Builder
“Your book was such a great help… I’m no longer afraid to diagnose electrical problems. You taught me more than my teachers at school.”
Testimonial 2 — Clear Explanations & Detail
“This book is unbelievably filled with what I need. The detailed pictures and explanations are the clearest I’ve ever seen. You hit a home run!”
Testimonial 3 — Transformational Impact
“Your knowledge has transformed me as a technician. Thank you for simplifying concepts that used to confuse me.”
Testimonial 4 — GM Instructor-Level Praise
“Joe teaches obtainable knowledge for every type of student. One of the best instructors I’ve ever had.”