How to Use The Snap-On MODIS

THE MODIS(TM) SCANNER
Edition 2.0 Modis BOOK

Preface

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. The scanner is the only window into what the different
modules are doing. 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.

This book is different than other book on the MODIS. This book
actually teaches you how to use the equipment and interpret the PID
datastream. This book also borrows from some of our other
publications, but geared towards the Modis. We also expose the use of
other diagnostic equipment and how to use them together. In today's
automotive repair shop the technician has to be able to use the
equipment and draw relational characteristics between the signal. It is
from these relations that the tech arrives to the true repair. It's not
just using the Modis. It's using the Modis and see if the scope and
multi-meter readings also support the repair conclusion.

Snap-On has over the years developed into a leader in diagnostic
equipment. With that in mind, lets learn to use the MODIS to its fullest
and become a profitable, top technician. Remember, learning to