Seminar Overview

DC electrical systems are more common and more complex all over the world, and TPC Training now offers a 2 day seminar that focuses solely on that.  Students will learn safety, identifying electrical problems, troubleshooting, using the correct tools, wiring diagrams and more.  Students will come out of this training seminar with a deep understanding of DC systems in mobile vehicles and equipment.

Download a brochure HERE

Discussion Topics

Day One starts with the fundamentals of DC systems. Students learn the background of DC electricity including components.  They’ll move on to wiring and diagrams to get a better understanding of circuit design and current flow.

History and Evolution

  • 6V
  • 12V
  • 24V
  • 36V
  • Theory
  • AC & DC Electricity
  • Creating & Storing Electricity
  • Current Flow
  • Ohm's Law
  • Electricity & Magnetism


  • Batteries
  • Conductors & Insulators
  • Control Devices
  • Circuit Protection Devices
  • Generators & Alternators
  • DC Motors
  • Semiconductors
  • Microprocessors

Wiring Diagrams & Schematics

  • Symbols
  • Layout
  • Component State & Function
  • Understanding Circuit Design
  • Understanding Current Flow
  • Locating Conflicts

Day Two is all about troubleshooting: How to spot problems, assess them, and repair them. 

Troubleshooting Tools & Equipment

  • Basic Tools
  • Meters
  • Scopes
  • Scanners
  • Charts and References
  • Internet and Other Resources

Troubleshooting Process

  • Have A Systematic Approach
  • Using the Service Manual
  • Locating Components
  • Understanding Illustrations and Drawings
  • Determining Equipment to Use
  • Testing Components
  • Wave forms
  • Tricks & Other Methods

Troubleshooting Case Studies and Exercises

  • Where to Start
  • Theory of Operation
  • Using the Diagrams
  • Choosing the Equipment
  • Testing
  • Understanding the Results of the Test
  • Making Decisions

Verifying the Fix

Continuing Education Units (CEUs)

Upon completion of this seminar, the student will receive a certification of completion with 8 classroom hours (.8  Trainco CEUs) per day attended. Visit our continuing education units page to determine if this class is accepted by your state licensing agency.

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