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    How to Use The Snap-On MODIS
    How to Use The Snap-On MODIS
    How to Use The Snap-On MODIS
    Ebook111 pages1 hour

    How to Use The Snap-On MODIS

    By Mandy Concepcion

    ()

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    About this ebook

    THE MODIS™ 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

    LanguageEnglish
    PublisherMandy Concepcion
    Release dateJun 30, 2024
    ISBN9798227281005
    How to Use The Snap-On MODIS
    Author

    Mandy Concepcion

    Mandy Concepcion has worked in the automotive field for over 28 years. He holds a Bachelor's Degree in Electronics Engineering as well as an ASE Master & L1 certifications. For the past 19 years he has been exclusively involved in the diagnosis of all the different electronic systems found in today's vehicles. It is here where he draws extensive practical knowledge from his experience and hopes to convey it in his books, equipment, and gadgets he designs. Mandy designs and builds his own diagnostic equipment, DVD-Videos and repair software.

    Read more from Mandy Concepcion

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      Book preview

      How to Use The Snap-On MODIS - Mandy Concepcion

      How to Use The Snap-On MODIS™

      By Mandy Concepcion

      THE INFORMATION, SCHEMATICS diagrams, documentation, and other material in this book are provided as is, without warranty of any kind. No warranty can be made to the testing procedures contained in this book for accuracy or completeness. In no event shall the publisher or author be liable for direct, indirect, incidental, or consequential damages in connection with, or arising out of the performance or other use of the information or materials contained in this book. The acceptance of this manual is conditional on the acceptance of this disclaimer.

      SOLUS and MODIS is a registered trademark of Snap-On corp.

      Copyright © 2006, 2012 By Mandy Concepcion

      This book is copyrighted under Federal Law to prevent the unauthorized use or copying of its contents. Under copyright law, no part of this work can be reproduced, copied or transmitted in any way or form without the written permission of its author, Mandy Concepcion.

      The information, schematics diagrams, documentation, and other material in this book are provided as is, without warranty of any kind. No warranty can be made to the testing procedures contained in this book for accuracy or completeness. In no event shall the publisher or author be liable for direct, indirect, incidental, or consequential damages in connection with, or arising out of the performance or other use of the information or materials contained in this book. The acceptance of this manual is conditional on the acceptance of this disclaimer.

      About ASE Certification

      We at Automotive Diagnostics and Publishing promote the ASE Certification program and encourage all beginning and advanced technicians alike to participate and get certified. We are not directly affiliated with ASE. ASE Automotive Technician Certifications are recognized throughout the United States by almost all county and state agencies as meeting the requirements to be considered an automotive technician. Many organizations and repair facilities nationwide have ASE Certification as mandatory for their technicians as part of their business model.

      It’s one thing to just show up for work; it is quite another to take control of your career, and get recognition for the knowledge and skills you’ve developed over the years. That’s what ASE certification is all about: helping you tell customers, employers, and other people about what you know. After all, being an automotive technician is not just turning wrenches. Your years of hard work show that you’ve gone the extra mile, and put in the time and effort to learn your trade. Your ASE certification patch is proof of it. Get certified now."

      We are not directly affiliated with ASE. The Tech-2 is a registered trademark of Vetronix Corp. and GM The DRB III & Starscan are a registered trademark of DaimlerChrysler The NGS is a registered trademark of Ford Motor Co. Any other proprietary name used in this book was done purely for explanatory purposes.

      Developed in the U.S.A.

      THE MODIS™ SCANNER

      EDITION 2.0  MODIS BOOK

      Copyright 2006, 2012, All rights reserved.

      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 use your equipment will also teach you a great deal of diagnostics.

      Table of Contents

      BASIC FEATURES

      Modular Diagnostic System

      BUTTON ARRANGEMENT DESCRIPTION

      UPDATING THE MODIS SCANNER

      GRAPHING THE PIDs

      SAVING YOUR SCREEN SNAP-SHOTS AND BULDING YOUR OWN LIBRARY

      A WORD ABOUT THE BATTERY CARE and MAINTENANCE

      GENERAL SCANNER FUNCTION & PID ANALYSIS

      THEORY OF OPERATION BEHIND THE DIFFERENT PARAMETERS (PIDs)

      OBD I and OBD II, and general PID analysis

      FUEL DELIVERY FAULT DETECTION

      TEST 1 – Misfire detection strategy (EGR, ignition and mechanical misfires)

      TEST 2 – A/F RATIO FAULTS

      TEST 3 – CLOGGED EXHAUST

      The MODIS Troubleshooter

      GRAPHING THE PIDs

      THE SNAP-SHOT FEATURE

      OBD-2 Operability

      Using the MODIS in conjunction with other types of equipment (Test-Light, Amp-Probes, GMM, DVOM, Oscilloscope)

      BASIC MODIS™ FEATURES

      IN THIS SECTION, WE’LL take a look at the particular features of the MODIS® diagnostic scan tool. This section is intended as much more than just a button or feature explanation. In here you’ll learn how to use each feature better and faster. The more you know about your new piece of equipment, the better off you’ll be. Enjoy your readings.

      THE MODIS 4-CHANNEL oscilloscope unit is one of the best on the market. This unit can differentiate with different colors, all four channels separately. The scope also has all the bandwidth that you’ll ever need for automotive use. The one aspect of the scope that’s different from all others is the fact that the time base setting refers to the entire screen. In other words, if you set the time-base for 10 mS, it means that the trace will take 10 mS to cross the entire screen, and NOT per division as with any other oscilloscope. This may be confusing for

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