Sometimes the simplest of test can be complicated by the simplest mistake such as forgetting in an open circuit, resistance will be invisible to your voltmeter.
Many times students forget this simple concept and then spend many hours searching for the voltage source. When a technician is working on their personal vehicle, they only lose their free time. However, if a technician were to make this simple mistake while working on a customer vehicle, what is lost is shop productivity and profits.
Today’s vehicles are very complicated. Full of advanced circuitry and most definitely not your father’s vehicle. A dirty, greasy engine would be steam cleaned; now we would not dare put all the electrical components at such risk. A low voltage problem can render all the advanced electronics and circuitry useless. Finding the root of the problem can be just as difficult as finding the needle in the haystack.
The Hands on Vehicle Testing Reference Book is designed to make it easier to find the needle in the haystack. Filled not with just words, but also illustrations for easier comprehension, the reference book will provided a step by step guide to resolving the debilitating low voltage problem. The guide will also cover “How To” test: batteries, computer/modules and sensors, continuity, current paths, connections, switch contacts, fuses, fusible links, circuit breakers, generators (alternators), relays, starters, shared current paths (the vehicle base system), engine compression, cylinder leak, fuel, fuel pumps, fuel injectors, as well as miscellaneous test from “How To” use a mechanic stethoscope to six different ways to check for a blown head gasket.
The Testimonials page is full of many customers who purchased the book because they were either frustrated with an electrical problem, or were a DIY enthusiast looking to care after their own vehicle, and they needed help. The reference guide is designed to help both a DIYer and the vehicle technician understand today’s technology.