Automotive Wiring and Electrical Systems

Automotive Wiring and Electrical Systems

Over 60,000 copies sold!

Published: April, 2009
Publisher: CarTech Books
ISBN 10: 1932498477
ISBN 13: 9781932498477
Product ID: SA160
Pages: 144
Illustrations: Over 315 Full Color Photos and 65 Diagrams

Winner of a Bronze International Automotive Media Award for 2009 in the Technical/How-to Book Writing category!

Automotive Wiring and Electrical Systems is Tony Candela’s first book and is published by CarTech Books. Unlike other titles on this topic, Automotive Wiring and Electrical Systems has been written so that the weekend enthusiast can easily comprehend its content. In addition, several step-by-step examples accompany the text so that the reader can actually follow the steps required in their own garage on their own vehicle. Finally, over 315 full color pictures and 65 diagrams, flowcharts, and illustrations supplement the content. With this book in hand, you will be able to:

  • Assemble, design, and build single and multi-function circuits and harnesses
  • Troubleshoot and repair existing circuits
  • Install aftermarket systems and electronics.

Automotive Wiring and Electrical Systems is your essential guide for wiring a hot rod from scratch, modifying muscle car electrical circuits for cooling fans and/or power windows, or adding a premium stereo and other conveniences to modern performance cars.

Since it’s release, Automotive Wiring and Electrical Systems has been a continual best seller with publisher Car Tech. In August of 2010, it earned an award with the IAMA.

What’s Inside

The following is a snapshot of what you’ll find between the covers:

Basic DC Electronics

How to correctly use the tools of the trade

  • test lights – incandescent & computer safe
  • digital multi meter (15 PLUS pages, with step by step instructions)

Automotive Wiring Basics

  • basic connections
  • how to properly terminate connections
  • crimping & soldering both small and large gauge wire

Basic Automotive Electronics

  • switches: types & use
  • relays: types & use, unlocking the mystery, how to use them in projects of all kinds

Advanced Automotive Electronics

  • power door lock circuits – in depth
  • power window circuits – in depth
  • the charging system – in depth
  • upgrading the charging system – in depth

Troubleshooting from A to Z with Numerous Step-by-Step Examples

Advanced Interfaces

  • interfacing aftermarket controllers with OEM power door lock & power window circuits
  • upgrading headlights
  • adding an auxiliary battery

Wiring harness basics

  • prepping harnesses
  • building a harness from scratch

Automotive Wiring and Electrical Systems, autographed


Candela’s first book provides an excellent foundation for the beginner and seasoned pro alike!


At CE Auto Electric Supply, we wrote the book on Automotive Wiring…literally. Founder Tony Candela has two automotive electrical books in print, perfect for do-it-your-selfers or seasoned professionals who want to really understand how to approach and complete a wiring task of any scale.

You’ll be pleasantly surprised that this book doesn’t read like a college level physics book. Rather, it’s written from the perspective of one enthusiast to the other. Topics are presented in crystal clear fashion and hundreds of photos and diagrams supplement the text. With this book in your tool box, you’ll be able to competently understand, diagnose, service, install, and troubleshoot nearly anything electrical.

6 reviews for Automotive Wiring and Electrical Systems, autographed

  1. 5 out of 5

    Darren Stonecypher

    This book is a phenomenal resource for anyone looking to tackle any automotive electrical project, big or small. Tony starts you out with a very basic, introductory lesson on Ohm’s Law and the Power Formula, then moves into circuit diagrams illustrating both parallel and series circuits. These are the essential building blocks to understand anything electrical, and Tony lays it all out very clearly. He then moves into wire gauges, tools, connectors, and methods for joining and terminating wires. In addition, he provides some great information on resistors, diodes, and relays, with very clear charts and pictures to describe their function, and reasons when and where to use them. The section on relays itself is worth the cost of the book. He also has a well thought out guide on troubleshooting including flow charts to assist in solving several problems that may occur. He wraps it all up with a few higher level projects that would be completely incomprehensible before reading the book, but make perfect sense afterwards. The circuit diagrams on the projects are very clear and easy to understand, making it much more manageable to tackle these projects on your own. I grab this book every time I start working on the electrical equipment in my vehicles, and reference it often.

    Tony himself is also a great resource and provides the best customer service of any company I’ve ever worked with.

    I also have “Automotive Wiring and Electrical Systems Volume 2: Projects” and consistently use it as a resource as well.

    If you plan on doing anything electrical in your car, buy this book.

  2. 5 out of 5

    Dylan Shafer

    Very good and informative book on automotive wiring systems. Helped me out in troubleshooting and understanding how certain things work on my 2002 Duramax.

  3. 5 out of 5


    I bought the book along with a relay headlight harness. Both products are outstanding. The book is easy to follow along and the explanations are clear and understandable. The book is worth buying to use as a reference while working on a project.
    Two thumbs up👍👍 and 5 stars!

  4. 5 out of 5

    Mark Botzki

    Tony’s books are outstanding in their ability to bring comprehension to the subject of automotive wiring. Volume 1 is full of detailed descriptions of Electrical Principles, without ever losing it’s great, conversation style. It is like you are bench racing with your fellow gearheads, but the subjects are Ohm’s Law, Kirchoff’s Law, and The Power Formula, giving a much needed base of knowledge for your future wiring endeavors. Knowledge is power, technique is that power’s application, and isn’t that what all car nuts want, more power. Get some highlighters, you will need them.

  5. 5 out of 5

    Ben Patton

    Very informative.

  6. 5 out of 5

    Alex Reed

    I really enjoyed reading this. I work with communications electronics, but this helped me understand 12v Auto electronics much better. Pay attention to the tips, tricks, and tool suggestions, because they definitely come in handy. Great job Tony!

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