crazyal
Super Member
I found this on my computer. I downloaded it years ago with the intent to post it here but it's a little too large. I happen across the link to it so I figure I'll post the link. It's written by T****a as a guide for technicians to troubleshoot electrical circuits. It gets into basic electrical theory without getting too technical. It does a pretty good job training how to use a multimeter and how to read wiring diagrams. Hopefully it'll help some here better understand electrical circuits.
http://www.gtsparkplugs.com/pdf/AutomotiveCircuitTheory.pdf
http://www.gtsparkplugs.com/pdf/AutomotiveCircuitTheory.pdf