How to Use Automotive Diagnostic Scanners

From hand-held, dedicated scanners and code readers to software that turns PCs and Palm Pilots into powerful diagnostic scanners, auto enthusiasts today have a variety of methods available to make use of on-board diagnostic (OBD) systems. Beginning with why scanners and code readers are needed to work effectively on modern cars, this book teaches you how to choose the right scanner or coder reader for your application, how to use the tool, and what each diagnostic trouble codes means.

How to Use Automotive Diagnostic Scanners is illustrated with photos and diagrams to help you understand OBD-I and OBD-II systems (including CAN) and the scanners that read the information they record. Also included is a comprehensive list of codes and what they mean. From catalytic converters and O2 sensors to emissions and automotive detective work, this is the complete reference for keeping your vehicle EPA-compliant and on the road!

In this book, the first generation of on-board diagnostics (OBD-I) will be discussed in chapter one and chapter two will cover OBD-II, the diagnostic monitoring system in all vehicles sold in the United States since 1996, and the system that code readers and scan tools interface with. Also included is a brief history of automobile air pollution and how this problem has driven the automotive industry to produce these systems in the first place. Chapter three covers electronic fuel injection, oxygen sensors, and catalytic converter operation. Code readers are discussed in chapter four with scan tools following in chapter five. How an engine works, and especially how to separate engine mechanical problems from OBD-II system diagnostics, is discussed in chapter six and chapter seven provides some practical applications for using a scan tool to diagnose emission related problems.

The Appendix has information for the following; OBD-I and OBD-II domestic vehicle applications, OBD-I domestic codes, vehicle manufacture contact information, OBD-II automotive terminology, standard OBD-II acronyms, nonstandard diagnostic link connector locations and diagnostic trouble codes and their definitions.

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