Publisher's Synopsis
Onboard diagnostics (OBD) have been an integral part of vehicle design for decades, as OBD-II became mandatory in 1996 for all cars manufactured in the United States. Almost every aspect of the diagnostics system evolved from emissions requirements placed on the automotive industry over the years. Manufacturers responded with increasing complexity in the electronic controls and reporting of errors. Fortunately, some commonization followed in the industry, making the job of a repair technician or do-it-yourself enthusiast slightly easier when working on these challenging systems. Passing emissions has also become critically important to manufacturers of high-performance parts and installation shops in recent years. Many states now require that the vehicle be able to pass an OBD check to renew the registration, making proper operation even more important to consumers. OBD-I & OBD-II: A Complete Guide to Diagnosis, Repair & Emissions Compliance is an insider's guide to modern original equipment manufacturer (OEM) diagnostics systems. As a former diagnostics and performance calibration engineer, Greg Banish guides you through critical ECU functions that ultimately lead to why the "check engine" light on the dash is lit. Strategies are given for how to begin looking for a solution when problems are detected. Listing every imaginable repair is impossible, but this book provides a solid foundation from which to work by explaining the electronic control unit's (ECU) logic in plain English.
