This book actually teaches you how to use the equipment and interpret the PID datastream. This book is different than other book on the MODIS. One thing’s to use an oscilloscope or GMM, but to know what the computer is actually interpreting, your only choice is this piece of equipment. The scanner is the only window into what the different modules are doing.
With the ever increasing electronic content in today’s vehicles, the scan tool has become the tool of choice to look into the ECM or module functions.