• This Haynes Techbook manual introduces the DIYer to OBD-II: what it is, what it isn't, and how it works
• Includes information on basic troubleshooting, computer controlled systems, OBD-II monitors, trouble code retrieval, diagnostic routines and component replacement procedures
• Haynes Techbook Manuals is a series of comprehensive manuals gives the home mechanic an in-depth look at specific areas of auto repair
• Each manual offers easy-to-follow text plus hundreds of hands-on photos

This Haynes Techbook manual introduces the DIYer to OBD-II: what it is, what it isn't, and how it works. Includes information on basic troubleshooting, computer controlled systems, OBD-II monitors, trouble code retrieval, diagnostic routines and component replacement procedures. Haynes Techbook Manuals is a series of comprehensive manuals gives the home mechanic an in-depth look at specific areas of auto repair. Each manual offers easy-to-follow text plus hundreds of hands-on photos.

This book has additional informatin that is not in the OBD-II book that comes with the OBD-II Test unit.

This book is easy reading and comprehensive. It covers all of the OBD II diagnostic codes for the majority of auto builders. I've found it to be very helpful in diagnosing vehicles with the check engine light on.

The book is quite useful to help one understand how the OBD-II system works. It may not solve your current problem, but at least you will have some idea of what causes the "service engine" light to come on and sometimes go off. It makes no bones about the fact that some problems are difficult to solve.