On-board diagnostics (OBD) is an automotive term referring to a vehicle's self-diagnostic and reporting capability. OBD systems give the vehicle owner or repair technician access to the status of the various vehicle subsystems. The amount of diagnostic information available via OBD has varied widely since its introduction in the early 1980s versions of on-board vehicle computers. Early versions of OBD would simply illuminate a malfunction indicator light or "idiot light" if a problem was detected but would not provide any information as to the nature of the problem. Modern OBD implementations use a standardized digital communications port to provide real-time data in addition to a standardized series of diagnostic trouble codes, or DTCs, which allow one to rapidly identify and remedy malfunctions within the vehicle. More Information...

OBD-II & Electronic Engine Management Systems

This manual takes the mystery out of Second-Generation On-Board Diagnostic Systems, allowing you to understand your vehicles OBD-II system, plus what to do when the "Check Engine" light comes on, from reading the code to diagnosing and fixing the problem.

• The book includes a comprehensive list of computer codes.
• Computer-controlled car repair made easy!
• For all car and light truck models manufactured since 1996. 
• Understand your vehicle's On-Board Diagnostic system.
• How to deal with that "Check Engine" light--from reading the code to diagnosing and fixing the problem.
• Comprehensive computer codes list.

Diagnostic tools:

• Powertrain management fundamentals 
• OBD-II "monitors" explained 
• Generic trouble codes that cover all models! 
• Manufacturer-specific trouble codes for GM, Ford, Chrysler, Toyota/Lexus and Honda/Acura vehicles 
• Let your car's computer help you find the problem! 
• Component replacement procedures 
• Glossary and acronym list 
• Fully illustrated with over 250 photographs and drawings
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