This is a 2003 Dodge Viper SRT-10 Powertrain Diagnostic Procedures book. It has 240+ pages of information on all trouble codes that your Vipers diagnostic system has. With each code it has tests and actions to help find the issue. Usually this book was never offered to the public and it a tough to find! From connector pinouts to all component locations...the book is worth its weight in gold for diagnosing a Viper!